The flow regulator

 

(57) Abstract:

The flow regulator is designed for liquid lines, mainly of liquid rocket engines, can also be used on different machines and installations where liquid materials. The flow regulator includes a housing having a main inlet and outlet nozzles. Inside his front fixed front guide sleeve, made with the front of the throttle holes and the transverse partition. The inner space of the front guide sleeve, limited transverse partition wall forms an entrance cavity, which communicated directly with the main pipe. Coaxial front guide sleeve is placed a sleeve, kinematically connected with the drive force of its movement along the specified sleeve with overlapping front throttle openings. Inside the housing coaxially with the front guide sleeve fixedly mounted in the rear guide sleeve, the walls of which is the output of the throttle opening. Thus, between the bulkhead and the rear guide sleeve placed the spool, made in the form of a rolling piston skirt. P relative to the rear guide sleeve and is installed with the possibility of contact with the transverse wall. And between the body and these front and rear guide sleeve is formed a flow cavity, which informs the input cavity with the outlet pipe through the front and the output of the throttle holes. The piston skirt is made holes with a message formed by this skirt cavity with a flow cavity. The rear part of the skirt freely planted on the back of the guide sleeve with the possibility of overlap on the last weekend of the throttle holes. Control costs is further provided with a check valve and a tuning inductor. The latter is located in the channel, indicating the input cavity flow cavity. The body is equipped with auxiliary input socket located in the front part and is communicated with the input cavity through the input holes formed in the front guide sleeve. The outer surface of the sleeve cover sleeve with forced movement. When this check valve is mounted in the main input connection from the input cavity. In the partition with holes for the message input cavity with the piston cavity. The invention improves the accuracy of the regulator at low costs and obeye from the main inlet pipe. 2 C.p. f-crystals, 1 Il.

The invention relates to the field units of automation, in particular to the flow regulators installed in the hydraulic systems of power plants, for example in the regulatory systems of liquid rocket engines.

A well-known regulator of U.S. patent N3130747, NCI 137-504, 1964, which has a spring-loaded valve which is connected on the one hand to the input cavity of the unit, and on the other with the internal cavity of the regulator through the hole in the spool. This control accepted for similar inventions. The lack of similar in that it is designed to work in conditions of constant flow, which does not allow for the operation of the highway on different modes.

From the analysis of the prior art a known regulator of fluid flow, comprising a housing having a main inlet and outlet, inside the housing at its front fixed front guide sleeve, made with the front of the throttle holes and the transverse wall, the inner space of the front guide sleeve, limited transverse partition wall forms an entrance cavity, which communicated directly with the main pipe, Cooke move along the specified sleeve with overlapping front throttle openings, inside the housing coaxially of the front guide sleeve fixedly mounted in the rear guide sleeve, the walls of which made the weekend throttle openings, between the bulkhead and the rear guide sleeve placed the spool, made in the form of a rolling piston with a skirt that is installed with the formation of the transverse wall of the piston cavity, the piston is spring-loaded relative to the rear guide sleeve and is installed with the possibility of contact with the transverse wall, and between the body and these front and rear guide sleeve is formed a flow cavity, indicating the input cavity with the outlet pipe through the front and the output of the throttle holes in the piston skirt with holes, located with messages generated this skirt cavity with a flow cavity, and the rear part of the skirt freely planted on the back of the guide sleeve with the possibility of overlap on the last weekend of the throttle hole (see encyclopedia "Space", Moscow, publishing house "Soviet encyclopedia", 1985, page 16, Fig. 9).

The disadvantage of this controller is that when further reduction of the minimum flow, is giving a throttling device, therefore the accuracy of the desired flow rate is markedly reduced. This relates primarily to maintain a small flow, which is especially important in the start-up mode of the engine.

Also known regulator requires special devices to switch LRE with power from auxiliary input socket, motor is powered from the starting tank) on the power from the main input pipe (i.e., power from the main line LRE).

The problem to which this invention is directed, is the design of the liquid flow regulator, allowing for a fixed position setting device (roller) to run the engine with the provision of flow of the working fluid through the additional input it in the flow regulator with high accuracy.

The technical result is to increase the accuracy of the regulator at low costs, as well as providing the possibility of switching power regulator with power from an input socket on the power from the main input socket.

The above task is solved in that the liquid flow regulator, comprising a housing having a main input is AC, made with the front of the throttle holes and the transverse wall, the inner space of the front guide sleeve, limited transverse partition wall forms an entrance cavity, which communicated directly with the main pipe, coaxial front guide sleeve is placed a sleeve, kinematically connected with the drive force of its movement along the specified sleeve with overlapping front throttle openings, inside the housing coaxially of the front guide sleeve fixedly mounted in the rear guide sleeve, the walls of which made the weekend throttle openings, between the bulkhead and the rear guide sleeve placed the spool, made in the form of a rolling piston skirt, established with the formation of the transverse wall of the piston cavity, the piston is spring-loaded relative to the rear guide sleeve and is installed with the possibility of contact with the transverse wall, and between the body and these front and rear guide sleeve is formed a flow cavity, indicating the input cavity with the outlet pipe through the front and the output of the throttle holes in the piston skirt the imp and the rear part of the skirt freely planted on the back of the guide sleeve with the possibility of overlap on the last weekend of the throttle holes, further provided with a check valve and a tuning inductor, located in the channel, indicating the input cavity with a flow cavity, and the housing is provided with an additional input socket located in the front part and is communicated with the input cavity through the input holes formed in the front guide sleeve, the outer surface of which covers the sleeve with forced movement, while the check valve is mounted in the main input connection from the input cavity and the septum is made holes for the message input cavity with the piston cavity.

In addition, the check valve is made in the form of a spring-loaded bolt with shank placed in the guide sleeve mounted on the supporting pylons located in the input cavity and attached to the front of the guide sleeve, and the gate valve is made with a through axial hole required for evacuating the cavities of the engine.

The invention is illustrated in the drawing, which shows a longitudinal section of the flow regulator of fluid.

The described flow regulator fluid contains a hollow body 1 having a core 2 and add the fuel component, and an additional inlet pipe 3 for supplying starting fuel component.

Inside the housing 1 in its front fixed front guide sleeve 5, is made in one piece with the partition 6, the inner space of which forms the input cavity 7, and between the sleeve 5 and the inner surface of the housing 1 is formed a flow-through chamber 8 and in the wall of this sleeve is made of the front of the throttle opening 9, indicating the input cavity 7 flow-through chamber 8.

Inside the housing 1 at its rear coaxial front guide sleeve fixedly mounted in the rear guide sleeve 10, in the walls which made the weekend throttle openings 11, indicating a flow cavity 8 with the outlet pipe 4.

Immobility relative to the housing 1 front 5 and rear 10 guides due to preload them in the axial direction until it stops in the said casing by a nut 12.

Between the front 5 and rear 10 guide sleeve placed the spool, made in the form of a rolling piston 13 with a skirt 14. The piston 13 by means of a spring 15 is spring-loaded relative to the rear guide sleeve 10, is in contact with the inner surface is planted on the back of the guide sleeve 10, with the possibility of overlap on the last weekend of the throttle holes 11.

The front guide sleeve 5 worn covering her sleeve 17, kinematically connected to the actuator 18 of forced movement of this sleeve along the sleeve 5 and placed with overlapping front throttle openings 9 in the sleeve. The actuator 18 may be made in the form of electric drive (not shown), an output shaft which is connected through a rack and pinion gearing with the sleeve 17.

Piston chamber (A) formed between the partition 6 and the piston 13, the through holes 19, 20, 21 and 22 is in communication with auxiliary input socket 3. The cavity (B) side skirt of the piston 13 also communicates with the pipe 3 through the holes 16, the flow-through chamber 8 in the housing 1, the holes 23 and 24, between which is mounted a tuning inductor in the form of an adjusting screw 25, the input cavity 7 and the hole 22.

On the main inlet pipe 2 from the input cavity 7 is mounted a check valve. This valve is made in the form of spring-loaded by means of spring 26 of the bolt 27 with the shank 28. This shank is placed in the guide sleeve 29 mounted on the supporting pylons 30 in the input cavity 7. The bolt 27 has a through axial hole 31.

Works described the controller as will obrasocial in the flow-through chamber 8 and through the weekend throttle openings 11 and the outlet 4 is connected to the system. The flow of starting fuel component in the cavity of the main inlet pipe 2 is prevented by a spring-activated shutter 27, is pressed against the housing seat 1, and the front of the throttle opening 9 is closed by the sleeve 17, is pressed in the axial direction to the end face of the sleeve 5 with the actuator 18.

The value flow area between the holes 23 and 24 mounted in the manufacture of the regulator by turning the adjusting screw 25. The flow of starting fuel component is determined by the size of the flow area of the channel through which it flows, and the pressure difference across the inlet and outlet of the channel. Thus, to maintain the constancy of the flow rate specified by the adjusting screw 25, it is necessary to maintain constant the difference (differential) pressure at the inlet and outlet of the channel. For this purpose, the pressure of starting a fuel component in the cavity of the holes 24 is fed through holes 21, 20 and 19 in the cavity (A), and the pressure in the cavity openings 23 through the flow-through chamber 8 and the holes 16 in the skirt 14 is fed into the cavity (B). The value of the nominal pressure drop in cavities A and B, and hence the constancy of flow is ensured by the equality of the force of the spring 15 and forces de the balance of these forces is disturbed, the piston 13 is moved in one direction or another, partially closing or opening the rear throttle openings 11. Nominal pressure differential on the piston 13, and hence the nominal consumption of the starting component of fuel through the regulator restored.

To access the main component of the fuel using the actuator 18 moves the sleeve 17, lifting the front of the throttle opening 9. Supplied through the inlet 2, the main component of the fuel by releasing from the seat body 1, the shutter 27, begins to flow into the regulator and then into the system. Upon further displacement of the sleeve 17 increase the consumption of the main component of fuel through the regulator to the desired value.

This increasing pressure is blocking the road for more of the pipe 3, for example, using a check valve installed in the pipeline (figure not shown), stopping the flow component of fuel through it.

The constant flow of the main component of fuel through the regulator is based on the same principles as the starting fuel component.

Through the axial hole 31 made in the shutter 27, serves to provide garantirovanno CLASS="ptx2">

Industrial applicability.

The flow regulator is designed for liquid highways mostly liquid rocket engines. It can also be used on different machines and installations in which there is a liquid line.

1. The flow regulator, comprising a housing having a main inlet and outlet, inside the housing at its front fixed front guide sleeve, made with the front of the throttle holes and the transverse wall, the inner space of the front guide sleeve, limited transverse partition wall forms an entrance cavity, which communicated directly with the main pipe, coaxial front guide sleeve is placed a sleeve, kinematically connected with the drive force of its movement along the specified sleeve with overlapping front throttle openings, inside the housing coaxially with the front guide sleeve fixedly mounted in the rear guide sleeve, the walls of which made the weekend throttle openings, thus, between the bulkhead and the rear guide sleeve placed the spool, made in the form of a rolling piston unconsidering rear of the guide sleeve and is installed with the possibility of contact with the transverse wall, and between the body and these front and rear guide sleeve is formed a flow cavity, indicating the input cavity with the outlet pipe through the front and the output of the throttle holes in the piston skirt is made holes with a message formed by this skirt cavity with a flow cavity, and the rear part of the skirt freely planted on the back of the guide sleeve with the possibility of overlap on the last weekend of the throttle holes, characterized in that it is equipped with a check valve and a tuning inductor, located in the channel, indicating the input cavity with a flow cavity, and the housing is equipped with auxiliary input socket, located in the front part and is communicated with the input cavity through the input holes formed in the front guide sleeve, the outer surface of which covers the sleeve with forced movement, while the check valve is mounted in the main input connection from the input cavity and the septum is made holes for the message input cavity with the piston cavity.

2. The flow regulator under item 1, characterized in that the check valve is made in the form Popruzhenko the x in the input cavity and attached to the front of the guide sleeve.

3. The flow regulator under item 2, characterized in that the gate valve is made with a through axial hole.

 

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