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Charging valve (versions) and method of its modification

Charging valve (versions) and method of its modification
IPC classes for russian patent Charging valve (versions) and method of its modification (RU 2445543):
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FIELD: machine building.

SUBSTANCE: charging valve comprises rod, pressure-sensitive device and intake section. Valve rod has first and second ends and channel extending there between. Pressure-sensitive device is located inside said channel on said first end and serves to measure pressure in pressurised tank. Intake section is arranged inside said channel between pressure-sensitive device and rid second end. Intake section is designed to rule out obstacles on fluid flow through the valve. Invention covers another design version of the valve and method of its modification.

EFFECT: continuous working pressure measurement without interfering with normal operation.

25 cl, 17 dwg

 

The technical FIELD

The present invention relates to boarding the aircraft systems and more particularly to a device for measuring pressure in the front suspension chassis. The present invention is particularly suitable for carrying out the refit of the aircraft, when drilling another hole or volume changes strut because the installation of a conventional pressure sensor is unacceptable.

PREREQUISITES FOR CREATING INVENTIONS

When performing maintenance, landing gear measure the pressure in the suspension struts and other tanks under pressure, in order to ensure their proper functioning. Geometrical dimensions of tanks (for example, chassis shock absorber) define (together with the volumes of fluids (liquids and gases) their modes and characteristics. Measuring the gas pressure inside the shock absorber is a critical task that should be regularly performed to ensure reliable operation of the aircraft. Currently, this task is performed by attaching a manometer to the external pipe valve, then the valve is opened. This solution is not optimal because it requires manual work on the tting and reading his pok is the knowledge, and, in addition, it is necessary to open and close the valve, which leads to leakage of small amounts of fluid (liquid or gas.

To reduce the amount of required maintenance it is desirable to use an automatic device for measuring pressure of fluid within the strut. Conventional technical solutions of this problem are either to install a pressure sensor inside strut or connecting the sensor to the pipeline extending from the existing pipe to provide the ability to measure pressure and charging (changes the amount of fluid (liquid and gas). Both solutions have inherent weaknesses, when these solutions are applied in relation to existing structures depreciation racks. Embedding the sensor in the case of strut involves drilling holes in it, which in General is unacceptable from the point of view of mechanical strength or material fatigue. Connecting to the front suspension of additional pipeline changes the magnitude of internal displacement and resulting in a change in the characteristics of energy absorption landing gear, which is undesirable.

In many landing gear used disc charging valve that meets the requirements MS28889-2/MIL-PRF-6164F. This clap is n supply or discharge of fluid (liquid and gas from the reservoir, under the pressure. In the present invention proposes a modification of this valve, which consists in the introduction into it of the pressure sensor and the electrical contacts, so that measurement of the working fluid could be performed without disturbing the normal functioning of the valve, or no significant change in the volume of the tank under pressure.

This modified valve can be installed on any landing gear for the measurement of pressure, and there is no need to make changes in the design of the chassis. Change made to military standards, starting with MS28889-2 and ending with new specifications MIL-PRF-6164F based on performance, provides certification of the modified valve so that it can be used as a replacement of existing valves.

BRIEF description of the INVENTION

Primarily, the invention provides for the introduction of an element sensitive to pressure at one end of the valve and providing wiring from the measuring device to the connector, which is installed inside the valve stem. The connector is arranged so that it does not interfere with normal operation of the battery charger and at the same time could be connected to the valve for measuring the pressure in flight or on the ground.

Another object of the present invention is a charging valve for use in a tank under pressure in the landing gear of the aircraft, and the charging valve includes a valve stem, which has a first and a second end and passing between the channel; a measurement device pressure, coupled with the first end of the valve stem, for measuring the pressure in the tank under pressure; and a receiving part installed inside the channel between the device pressure measurement and a second end and is used to establish a connection with the device, and the receiving portion are arranged in such a way as not to create obstacles in the La pass flow of fluid through the valve.

Another object of the present invention is a modification of the filling valve comprising a main body, which has a through channel, to accommodate the device measuring the pressure used in the tank under pressure, and the method comprises the following stages: (i) placing inside the channel of the device, pressure-sensitive, at the end of the channel which communicates with the tank under pressure, to provide a measurement of the pressure inside the tank device, a pressure-sensitive; (ii) implementation of the connection device, pressure-sensitive, with the receiving device to enable the exchange of information between them, and the receiving device is placed within the channel of the valve on the opposite side from the measuring end of the device, pressure-sensitive, so that not to create obstacles for the movement of fluid through the valve. As a device, pressure-sensitive, this may be a pressure sensor or can be used a modification of the end of the valve, which is formed by the diaphragm, pressure-sensitive, which is then connected sensor.

Another object of the present invention is the upgrade kit valve used with reservoir is, under pressure, the kit contains a device sensitive to pressure and having such dimensions that it can be entered in the channel of the valve at the first end, and designed to measure pressure in the specified container, and a receiving part having such dimensions that it can be entered in the channel of the valve that is used for the communication with the device, pressure-sensitive, and arranged so that it did not create obstacles to the flow of fluid through the valve. The device is sensitive to pressure, and the reception part is considered in the description.

BRIEF DESCRIPTION of DRAWINGS

The present invention is described below in more detail with reference to the following figures:

figure 1 - diagram of the basic design of the charging valve;

figure 2 is a perspective view with a spatial separation of the two parts of the valve stem in accordance with the present invention a device sensitive to the pressure connector and the plug that should be used in conjunction with valve;

figure 3 is a perspective view of one of the embodiments of the receiving part in accordance with the present invention;

figure 4 is a perspective view of an alternative receiving part and the second part of the modified valve stem in accordance with this is they the invention;

figure 5 is a perspective view of another alternative of the receiving part and the second part of the modified valve stem in accordance with the present invention;

figure 6 is a perspective view of another version of the implementation of the receiving part of the valve in accordance with the present invention;

figure 7 is a perspective view of another alternative of the receiving part and the second part of the modified valve stem in accordance with the present invention;

figure 8 is a perspective view of the receiving part and the plug valve with a spatial separation of the parts in accordance with the present invention (for the variant shown in figure 3);

figure 9A is a perspective view of the receiving part and a plug part with a spatial separation of the parts are oriented relative to each other to make the connection in accordance with the present invention;

figure 9B is a perspective view of the connection of the selection and insertion of parts, shown in figure 9A;

figure 10 is a perspective view of one embodiment of the design of the plug in accordance with the present invention;

figure 11 is a schematic view of the modification processing machine rod of one embodiment of a valve design in accordance with the present invention;

figure 12 is a side view cross-section of the device is Ista, pressure-sensitive, in accordance with the present invention (the placement and connection);

figure 13 is a side view cross-section, which illustrates the connection of a device sensitive to pressure, with the use of welding for installation in accordance with one embodiments of the invention;

figure 14 is a perspective view of the plug and node consisting of a receiving part, a device sensitive to pressure, and the valve stem in accordance with one embodiments of the present invention;

figure 15 is a perspective view of one embodiment of a fully assembled valve in accordance with the present invention (cap removed);

figure 16 - view cross-section of an alternative construction of the valve in accordance with the present invention, in which modification the valve is in the formation of the diaphragm, which is then connected to the sensor;

figure 17 - view of the cross-section of another version of the valve, shown in figure 16, in which the valve stem is modified so that its end is formed a cavity.

DETAILED description of the INVENTION

In the present invention is proposed modified charging valve with sensing element of the pressure sensor at one end and a connector or receiving portion arranged inside of him. P the Yemen part is arranged so that to determine the pressure inside the valve is in flight or on the ground with minimal impact on the operation of the device is charging tanks under pressure.

Proposed in the present invention, the modified valve is a known valve design, which is used in this technical field and into which the device is sensitive to pressure, and the receiving device or connector, which provide a measurement of pressure as needed, without affecting the normal operation of the valve, and with minimal volume change of the working fluid inside the tank under pressure. The tanks under pressure, and charging valves known in the art and are not described in detail here. In an alternative embodiment of the invention the end of the valve may also be modified in such a way that it was formed by a diaphragm, pressure-sensitive, which is then connected sensor.

Proposed in the present invention the valve is described in more detail below with reference to the accompanying figures:

The figure 1 presents a drawing of a valve having a standard configuration. As already indicated, the present invention uses the design is known valves. The valve is modified so that it ustanavli who is, for example, a device sensitive to the pressure receiving portion and the measuring device. In General, these known valves contain the main element (also specified in the description as the valve stem), which has a Central channel or bore hole extending from one end of the element to another. In accordance with the present invention within the channel in the main element is a device sensitive to the pressure receiving portion, described below.

One of the designs proposed in this invention a modified valve will be described in more detail below with reference to figure 2. The figure 2 presents a perspective view with a spatial separation of parts of a modified valve, indicated on the figures by the reference number 18 and contains the stem 20 of the valve, which consists of a first portion 22 and second portion 24. Next it will be clear that the proposed in the present invention, a modified valve 18 may contain one main one-piece element, however, in the preferred embodiment, the main valve element contains two parts, to facilitate the Assembly of the modified valve. In the description of the modified valve refers to the valve stem, which consists of two parts, although to a person skilled in the art will understand that can use the change and the valve stem, consisting of one part. The rod 20 includes a long channel 26, passing through the rod 20 from one end to the other, i.e. through the first 22 and second 24 side.

The modified valve 18 includes a device 28, a pressure-sensitive, and the receiving part 30. The modified valve 18 may contain additional plug 32 (optional) or plug 32 may be a separate element that is used in conjunction with modified valve 18, when it is required to measure blood pressure (described below).

The device 28, a pressure-sensitive, may be any pressure-sensitive device (or pressure sensor), which is designed to measure pressure and shall be of such dimensions that allow you to enter it in the first portion 22 of the rod 20. In an alternative embodiment, the channel 26 may be extended, for example, with counterbore, in order that it could enter the device 28, a pressure-sensitive. The device 28, a pressure-sensitive, permanently attached to the end of the first part 22 by any means known in the art, for example by welding, is performed by laser or other device, fixed by means of adhesive bonding or by mechanical fastening devices within the channel 26. The connection device 28, a pressure-sensitive, NR the three channels 26 may be carried out by any means, which provide the measurement device 28, the pressure in the tank under pressure, is connected to the valve 18.

As the device 28, a pressure-sensitive, can be used, among others, strain gauge or capacitive elements. In the proposed in the present invention a modified valve 18 can also be used a temperature sensitive element (not shown). As thermosensitive element can be used, for example, a thermocouple or RTD temperature sensor. As is clear to a person skilled in the technical field, the device 28, a pressure-sensitive and heat-sensitive device can be integrated into a single device designed to measure temperature and pressure of the fluid inside the tank under pressure. This integrated device is sensitive to pressure and to temperature, preferably has a size that enables its placement inside the first portion 22 of the stem 20 of the valve. In an alternative embodiment, the channel 26 may be extended for introducing integrated device sensitive to pressure and temperature.

In the embodiment of the invention, represented in the figure 2, the device 28, a pressure-sensitive, contains several wires 38 extending from one end, which is to ensure transmission of the measured values of the pressure in the internal or external measuring device or plug 32 through the receiving portion 30 of the connector. As will become clear, if you are using an integrated device, sensitive to temperature and pressure, the counts of values of pressure and temperature may be transferred to internal or external measuring device or plug 32 through the receiving part 30.

Within the channel 26 in the second part 24 of the rod 20 is receiving portion 30. The reception part 30 can communicate with the device 28, a pressure-sensitive and electrically connected with the measuring device or plug-in part 32 on the end, which is opposite the point of connection device 28. The reception part 30 can communicate with the device 28, a pressure-sensitive, and in this embodiment of the invention the wires protruding from the device 28, are connected to the receiving portion 30. The connection wires 38 may be implemented using any known means, including by soldering. Thus, since the reception part 30 is connected electrically with the device 28, a pressure-sensitive, and with plug-in part or measuring device 32, is provided to transfer the pressure from the device 28 to the plug or the measuring device 32.

Figure 3 illustrates one embodiment of the design of the receiving part 30, containing a hollow cylindrical shell 40, the inside of which are strip 42. These strips 42 are connected to the internal surface of the casing 40 and are separated from each other at a certain distance. The strips 42 are connected with the shell 40 by any known means that can withstand the action of the environment, existing inside the valve, and to maintain the strip 42 in a predetermined position. Strip 42 is made of conductive material and enable the exchange of information between the wires 30 of the device 28, a pressure-sensitive, and the measuring device or plug-in part 32. As further depicted in figure 8, lines 42 extend beyond the shell 40 in the direction of the device 28, a pressure-sensitive. Wire 38 extending from the device 28, a pressure-sensitive, are connected to the strips 42 by any known means, for example, by soldering.

Used conductive material should preferably be inert in relation to the fluid in the valve 18. The scheme under consideration shows that in the receiving part 30 has four spaced strips 42, however, the number of bands, their shape and dimensions can vary, provided that the conductive path is provided from the device 28 through the receiving part 30.

As already mentioned, the modified valve 18 provides a measurement of the pressure as needed with minimal impact on the operation of the valve and operating the fluid. Therefore, it is clear that although the number and position of bands 42 may vary, however, it is desirable to minimize barriers to the flow of fluid through the receiving part 30.

In figures 3-7 illustrate alternative constructions of the receiving part 30. Can be used in other variants of the receiving part 30 to provide electrical connection between the device 28, a pressure-sensitive, and in particular between the wires 38 and the plug part or the measuring device 32. As can be seen in figures 3-7, lines 42 are arranged in the receiving part 30 so as to ensure a reliable separation between them to provide separate electrical connections provided by the strips 42. In figures 4-7 shows in perspective with other types of structures receiving part 30. You can see that each piece receiving portion 30 is shown with the end, which is intended for connection with the plug-in part 32. The opposite end connects with the above-mentioned wires 38.

In figures 4-7, you can see that at the end of each of the receiving part 30 has a series of holes, indicated by the reference number 44, which are designed to provide connection with insertion part 32. In these embodiments, the plug portion 32 will contain tabs (not shown), which are of such shape and size that they come in from the Erste 44 to provide connections between them.

Greater detail below alternative design of the receiving part 30. The figure 4 shows the receiving portion 30, which has a rectangular body with curved sides for adhesion to the walls of the channel 26. This implies a mechanical treatment to obtain grooves in the stem 20 of the valve (preferably in the second part 24), intended for installation of the receiving part 30. In this embodiment, the holes 44 are parallel to the inside of the rectangular body. Each hole 44 is of such dimensions that provide the possibility of introducing a conductive strip 42. Fluid may leak from both sides of the rectangular body through the valve stem.

The figure 5 shows the receiving portion 30, the construction of which has a round or cylindrical in shape, with two locking tabs 46 that holds the connector 34 within the second portion 24 of the stem 20 of the valve. Such a construction of the receiving part 30 is located in the center of the channel 26, and the flow of fluid passes through the outer surface of the receiving part 30.

The figure 6 shows the reception part 30, the construction of which has a round or cylindrical shape and which is supported within the channel 26 of the T-shaped element 48. It is clear that in this version of the T-shaped element 48, which runs around the connector 34 and is held inside oblock the 40 valve key, for attachment, preferably is made of thin metal to minimize disruption of the fluid flow flowing connector, as well as to ensure the minimum flow of the fluid in which the metal may be subjected to fatigue from the torque arising due to the high pressure fluid.

The figure 7 presents an alternative design of the receiving part 30. In this embodiment, the design of the receiving part 30 has a round or cylindrical in shape and of such dimensions that it stuck to the walls of the channel 26. Shows all the reception part 30 has a cavity for passage of fluid flow. Openings 44 are located in the walls of the receiving part 30.

In more detail, the plug portion 32 of the connector and its use. As already mentioned, the plug 32 may form part of the valve 18 or may be a separate element that is used only if necessary. Plug 32 provides a connection to the receiving portion 30 at the opposite end from the device 28, a pressure-sensitive. In the present embodiment, as can be seen in figure 8, the plug portion 32 has an end with a contact that has the connectors 52 with the contact strips 54, which are designed to mate with the strips 42 of the receiving part 30. The connection is whether the mate, these two components can be clearly seen in figures 9A and 9B. The connection of the two parts provides electrical contact between the device 28, sensitive to the pressure receiving portion 30 and the insertion part 32, and therefore, is provided with a reading of measurements and transfer them to the user.

You must understand that the electrical connection between the receiving part 30 and the insertion part 32 can also be carried out by other means. For example, as described above, in alternative embodiments, the design of the receiving part 30 was used holes 44 for insertion of the tabs on the plug 32 to provide a connection between the device 28, the receiving part 30 and the insertion part 32.

The figure 10 presents a perspective view with a spatial separation of the parts above described variant of the plug part comprising a contact strip 54 in the connector 52 having such dimensions as to ensure a mate with the strips 42 of the receiving part 30.

As can be seen in figures 9A and 9B, the contact strip 54 of the plug 32 and the strip 42 of the receiving part 30 can be slightly curved to ensure a reliable fixation of the components when they are connected. Isolation between pairs of contact strips is the shell 40 of the receiving part 30, shown in figure 9A. The shell 40, which includes a conductive strip, PR is doctitle is from a dielectric plastic material, for example, Delrin or Cape peek. Therefore, the conductive strips are mounted on an insulating base, i.e. on the sheath material, which is in the conductive material stainless steel valve stem.

To ensure mating of the plug 32 and the receiving part 30 in the desired position (ensure proper electrical connections) strip 42 and the contact strip 54 can be displaced in the radial direction, as shown in figure 10, which will be connected to only one mutual position. In addition, one of the strips 42 of the receiving part 30 may be made deeper than the rest of the band for securing the guide, which provides the connection only when the plug 32 is shown rotated to the desired position relative to the receiving part 30.

Example requirements for machine processing for one of the embodiments of the present invention is shown in the figure 11. However, it should be borne in mind that they are presented only as examples and should not be construed as limiting the scope of the invention. Requirements for machine processing may be changed depending on valve size and configuration of the connector and device charging of the reservoir under pressure, and the plug, which must be used within the valve.

The main element of the valve stem 20 of the valve must be modified as follows: at a distance of 0.8 inch from the left end of the rod is cut groove width of 0.04 inches at its periphery, and the rod is cut into two parts at a distance of 0.84 inches from its left end. As mentioned above, the result is two parts of the stem 20 of the valve, which helps positioning and attachment of the receiving part 30 to the wires 38 of the device 28, a pressure-sensitive. However, it is not mandatory, and the reception part 30 may be installed inside the main element (rod) valve 20 and in the case when the rod consists of a single one-piece part.

After the stem 20 of the valve is divided into two parts, the first part can be made the hole on the end facing the second part, the diameter 0,1170 inch offset from the center and depth 0,6450 inches using a standard drill diameter 0,1142 inch +0.004/-0,001 inches. At the opposite end, which is sensitive surface of the pressure transducer can be drilled the second hole diameter 0,126 inches and a depth of 0,1750 inches using a standard drill diameter 0,1260 inch +0.005/-0,001 inches.

The second part of the housing can be provided with an orifice having a diameter 0,2000 inch along the entire length of this part. This can be in the complete standard drill diameter 0,2008 inch +0.005/-0,001 inches.

In addition, in the cylindrical end portion 72 is groove diameter 0,395 inches and a length of 0,180 inch and a hole diameter of 0.15 inch offset from the center using a standard drill diameter 0,1496 inch +0.005/-0.001 inch. This hole must be aligned with a hole passing through the first portion 22 of the stem.

Next, the installation device 28, a pressure-sensitive, will be described with reference to figures 12 and 13.

In the variant shown in figures, can be used two ways for mounting in the right place pressure sensor or device 28, a pressure-sensitive. The first method (i), shown in figure 12, which uses rubber 56, vulcanizing at room temperature and sealing epoxy mixture 58, and the second method (ii), shown in figure 13, in which the fastening is carried out using microlaser welding.

When using the method shown in figure 12, i.e. using the sealing rubber 56 and epoxy mixture 58, the end part 72 of the rod must be hermetically welded by laser welding to the first part of the stem. Then the device 28, a pressure-sensitive, set in place using epoxy mixture near the bottom of the pressure sensor and the sealant 56, surrounding the head. This is done to prevent flinestone stress taking place during the curing of epoxy resin, for measuring the pressure sensitive surface of the sensor.

In the case of using the devices, pressure-sensitive, laser welding (see figure 13), the inverter 28 is inserted into the end portion 72 so that the surface pressure-sensitive, was flush with the surface of the end portion. After that by means of a weld 60 both parts are connected on the periphery of the pressure sensor over the seam available in sensor design, where he comes out on the other side of the end portion. The assembled unit, which consists of the end portion and the transducer is placed on the first part of the rod, and wire, extending from the transducer will pass through the hole in the rod. Using a weld 62 end part 72 is attached to the first part 22 of the rod on the peripheral junction line between the two parts.

Below with reference to figures 14 and 15 will be described, the Assembly proposed in the present invention the modified valve 18.

To assemble the valve must first, as described above, to connect the device 28, a pressure-sensitive, with the first part 22 of the main valve element 20. Wire 38 extending from the device 28 and extending from the first side of the primary element 20, may be executed in one cable. Then the wire or cable is ü can be soldered to the receiving part 30 (namely, the strips 42). Then the reception part 30 is placed inside the second part 24 of the basic element 20, and the first and second parts are interconnected. Preferably the first 22 and second 24 side are connected tightly with the use of laser welding. Then the modified valve 18 can be installed in the casing 74 of the valve using the locking nut 76, and the valve is ready for operation.

The valve 18 may also contain a cap-the cap 64 shown in figure 15. The cap 64 is mounted on the second end portion of the valve stem and provides protection from dust, or seal. In one of the embodiments of the invention, the cap 64 may include a plug portion 32, which in the working position can be connected to the receiving portion 30, and the pressure measurement can be performed, if necessary, during operation of the aircraft. In an alternative embodiment, the cap 64 may be removed manually, and the plug 32 will be contained in it as a separate device, such as a wearable device, and connect to the receiving portion 30 in case you want to measure the pressure.

In the present invention proposes a modified valve in accordance with the above description, which contains a device sensitive to pressure, and the receiving part or connector that allows Perry is legal or permanent connection to this device. Another object of the present invention is a method of modernization of the valve inside the tank under pressure for introduction into the valve device, the pressure-sensitive. Another object of the present invention is modifying device which is pressure sensitive and contains a connector that can be installed in the valve to provide pressure measurement with minimal impact on the operation of the valve.

In the present invention proposes a standard charging valve, modified with the purpose of introducing in its composition by the pressure transducer active diaphragm, which acts the pressure inside the tank under pressure. In addition, the present invention proposes a device in which there is no violation of the wires or the connector to the flow of gas or oil, so it will not disrupt normal maintenance.

In another embodiment of the present invention, the available end of the valve may be modified to form the diaphragm, pressure-sensitive, which is then connected sensor. Strain gauges are indicated by the reference number 70 and can be attached directly to the valve body. Figure 16 illustrates the installation of the sensor 70 in the valve stem with the wires 38, akadashi and from the sensor. The wires have already been described above and can be connected, as described above.

Figure 17 illustrates another variant of the valve that contains a sensor, in which the valve stem is modified to form a cavity at one end of the valve. The cavity may be formed by mechanical processing, and is then welding or electro discharge machining. Then in the cavity can be bonded strain gauge 70 and the wires are led out, as described above. You need to understand that the sensor and wires can be replaced with a device sensitive to the pressure specified in the above options.

While the present invention is described with references to illustrate his options and examples, the description should not be construed as limiting the scope of the invention. Thus, the specialist in the art after reading this description will be able to offer different modification methods, and other embodiments of the invention. Therefore, it is envisaged that the appended claims will cover any such modifications or options. In addition, the present all claims are entered by reference into the description of the preferred variants of its implementation.

All publ the requirements, patents and patent applications mentioned in this description are entered in their entirety by reference into the present application as if each such publication, patent or patent application was specifically introduced in this application a separate link.

1. Charging valve for use in a tank under pressure in the landing gear of the aircraft, containing:
the valve stem, which has a first and a second end and passing between the channel;
a device sensitive to the pressure within the channel at the first end that is designed to measure the pressure in the tank under pressure; and
the receiving part installed within the channel between a device sensitive to pressure, and a second end and is used to establish a connection with the device, and the receiving portion are arranged in such a way as not to create obstacles to the flow of fluid through the valve.

2. The charging valve according to claim 1, in which the device is sensitive to pressure, contains at least one wire extending from one end and in electrical contact with the receiving part.

3. The charging valve according to claim 1, in which the receiving device is secured within the channel between a device sensitive to pressure, and a second end.

4. The charging valve according to claim 2, in which p is Yemen the device comprises a hollow cylindrical body and at least one conductive strip, attached to the inner surface of the hollow body.

5. The charging valve according to claim 4, in which at least one conductive strip connected at least one lead extending from the device, pressure-sensitive.

6. The charging valve according to claim 1, in which the receiver is designed with the possibility of connection with the measuring device to receive the measured pressure values from the device, pressure-sensitive.

7. The charging valve according to claim 6, in which the receiver is designed with the possibility of introducing the measuring device to provide a connection between the receiving device and the measuring device.

8. The charging valve according to claim 5, in which at least one conductive strip is made with the possibility of electrical connection with at least one corresponding connecting strip located on the measuring device, to ensure transmission of measured values of the pressure device, pressure-sensitive, in the measuring device.

9. The charging valve according to claim 1, containing additionally the device temperature measurement.

10. The charging valve according to claim 9, in which the device temperature measurement built into the device, sensitive to pressure, and is introduced into the channel at the first end to measure the temperature of the tank, ahomadegbe under pressure.

11. The charging valve according to claim 9, in which the device temperature measurement is selected from the group consisting of thermocouple and RTD temperature sensor.

12. The charging valve according to claim 2, in which the receiving device includes a body which has a generally rectangular shape, with curved sides, and which has a size that enables its introduction in the channel, and the rectangular body has at least one hole, which is formed by the inner surface mounted on it with the conductive strip.

13. The charging valve 12, in which each conductive strip connected at least one lead extending from the device, pressure-sensitive.

14. The charging valve 13, in which at least one conductive strip is additionally intended for electrical connection with at least one corresponding connecting strip located on the measuring device, to ensure connectivity between them.

15. The charging valve 12, in which the body having a generally rectangular shape, is of such dimensions that it occupied a part of the channel to ensure a flow of fluid through the valve from both sides of the rectangular body.

16. The charging valve according to claim 2, in which the channel is formed in the inner side wall, and a receiving portion includes a cylinder is ical body, located in the centre and within the channel, and means mounting the cylindrical body at least part of the inner side wall.

17. The charging valve according to clause 16, in which the fastening means includes two locking tabs having such sizes that they come in without a gap between the cylindrical body and the inner side wall.

18. Charging valve 17, in which the cylindrical body includes holes formed at one end, and at least one conductive strip placed inside the hole.

19. The charging valve on p, in which at least one conductive strip connected at least one lead extending from the device, pressure-sensitive.

20. The charging valve according to claim 19, in which at least one conductive strip is made with the possibility of electrical connection with at least one corresponding connecting strip located on the measuring device, to ensure connectivity between them.

21. The charging valve according to claim 2, in which the receiving device comprises a hollow cylindrical body having an external cylindrical wall and an inner cylindrical wall and securely fastened in the channel, and in the cylindrical body has a hole formed at one end between the inner and outer cylindrical walls DL is the introduction of at least one conductive strip, connected to at least one wire devices, pressure-sensitive.

22. The modification of the charging valve, consisting of a main element, which has a through channel for placement of the device measuring the pressure used in the tank under pressure, and the method comprises the following stages:
(i) placing inside the channel of the device, pressure-sensitive, at the end of the channel which communicates with the tank under pressure, to provide a measurement of the pressure inside the tank device, a pressure-sensitive;
(ii) implementation of the connection device, pressure-sensitive, with the receiving device to enable the exchange of information between them, and the receiving device is placed within the channel of the valve on the opposite side from the measuring end of the device, pressure-sensitive, so that not to create obstacles for the passage of fluid through the valve.

23. Charging valve for use in a tank under pressure in the landing gear of the aircraft, containing:
the valve stem, which has a first and a second end and passing between the channel;
device for measuring pressure, coupled with the first end of the valve stem, for measuring the pressure in the tank under pressure; and the receiving part installed inside the channel between the device pressure measurement and a second end and is used to establish a connection with the device, and the receiving portion are arranged in such a way as not to create obstacles to the flow of fluid through the valve.

24. The charging valve according to item 23, in which the measurement device pressure holds the diaphragm and the sensor connected to the diaphragm, to read the pressure values measured by the diaphragm.

25. The charging valve according to item 23, containing an additional temperature measurement.

 

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