Electrical household appliance

FIELD: personal use articles.

SUBSTANCE: assembled dumper/detector comprises a module (1) of the sensor displacement, having a coil (4) and a coil housing (2) for placing the coil (4) into it, and/or the coil support (6) for supporting the coil (4), and a damper (30) of telescopic type for the household appliance, having a damper housing (20) and a piston (22) made with the ability of movement in it and located on the same axis with it. The portion of the piston (22) comprises material or is formed from material designed to alter the electromagnetic field of the coil of the module of the sensor displacement. The module of the sensor displacement is located so that it is worn over the part of the damper housing. The electrical household appliance using the damper/detector is a washing machine, or a washing machine with function of drying, or a drying machine.

EFFECT: assembly and operation of the damper/detector is facilitated.

34 cl, 6 dwg

 



 

Same patents:

FIELD: instrumentation.

SUBSTANCE: invention is used for measurement of clearances and axial displacements of end faces of working blades of turbines. The essence of the invention consists in that with the end face of the monitored blade the distributed cluster is made to interact which is formed by two high-temperature single-turn eddy current transducers with sensitive elements (SE) designed as a linear piece of the conductor installed on a stator shell with rated shift with reference to each other in the direction parallel to the axis of the driving wheel (X axis) to the distance equal to the expected displacement of the blade end face Δx0, and the cluster of transducers is placed on X axis to the left of the outlet edge of the blade to the half of SE length (λSE/2), and also SEs of transducers are oriented parallel to the tangent to the centreline of the profile of the blade end face in the point of its intersection with the rotation plane passing through the geometrical centre of the cluster of transducers (the middle of the line connecting centres of transducer SEs); from the set of results of conversion of parameters of the first SE with face edges of back and trough of each monitored blade the least of extreme values of codes is selected, and from the set of results of conversion of parameters of the second SE with face edges of back and trough of each monitored blade the greatest of extreme values of codes is selected.

EFFECT: improvement of sensitivity of single-turn eddy current transducers with sensitive elements designed as a linear piece of conductor at measurement of radial clearances and axial displacements of end faces of turbine blades with a large bend angle of the profile and U-shaped longitudinal section of its feather.

2 cl, 2 dwg

FIELD: measurement equipment.

SUBSTANCE: invention relates to measurement equipment and may be used to measure curvatures of tubular channels, preferably, in nuclear power engineering. Substance: inductive meter of tubular channel curvature comprises inductive clearance sensors connected with a measurement system. Inductive sensors of movements are made in the form of magnetic conductors (5) with exciting (7) and measuring (6) windings fixed on holders, installed on the meter body, and closing magnetic elements (8), fixed on the meter body opposite to opened magnetic conductors. Exciting (7) and measuring (6) windings are installed on magnetic conductors (5) coaxially. Winding wires of these windings and their outlets (10) are made from a cable with mineral insulation in a metal tight shell. Exciting windings (7) are connected to a generator of stable DC current. Measuring windings (6) via amplifiers are connected to inlets of synchronous detectors controlled from the stable DC current generator.

EFFECT: expansion of functional capabilities of a meter.

4 dwg

FIELD: measurement equipment.

SUBSTANCE: meter of curvature comprises capacitance clearance sensors fixed on a controlled item and reservoirs connected to meters. Capacitor plates (5), which create capacitance clearance sensors, are installed on separate holders (3), fixed on the controlled item. The distance between points of fixation of holders (3) in axial direction is more than the clearance between capacitor plates (5). On each holder (3) there are several capacitor plates (5) with angular displacement relative to each other in the cross section of the holder (3). Capacitance meters are made in the form of charge amplifiers. Specific versions of device realisation are proposed. In the first specific version the holders (3) are made in the form of coaxial shells of different diameter, and on cylindrical surfaces of shells facing each other, there are pairs of cylindrical capacitor plates (5) fixed, forming a radial clearance. In the second specific version the holders (3) are made in the form of a pair of identical shells with flanges at the ends facing each other, and on the flanges there are pairs of flat capacitor plates (5), which form an axial gap.

EFFECT: expanded functional capabilities of a meter.

3 cl, 4 dwg

FIELD: measurement equipment.

SUBSTANCE: scope of application: reduction of temperature error at measurement of movements of electrically conducting objects under conditions of action of high temperatures. Essence: the first thermocouple is located in a single-coil eddy-current transducer in an internal wire of its coaxial current circuit attaching a sensitive element to a volumetric coil of a matching transformer. A hot junction of the thermocouple is located inside the current circuit near its end face facing to the sensitive element. The second thermocouple is located so that its hot junction turns out to be at a contact point of the current circuit with the volumetric coil of the matching transformer. Temperature considered for temperature correction at calculation of coordinate constituents is determined as ΘSE=ΘTC1+(ΘTC2ΘTC1)l1l2, where ΘTC1 - temperature in the location zone of the hot junction of the first thermocouple arranged in the internal wire of the coaxial current circuit; ΘTC2 - temperature in the location zone of the hot junction of the second thermocouple arranged at the contact points of the current circuit with the volumetric coil of the matching transformer; l1, l2 - distances from the sensitive element to the hot junction of the first and the second thermocouples respectively.

EFFECT: reduction of measurement error of coordinate constituents.

2 dwg

FIELD: physics.

SUBSTANCE: sensor has a housing (16) with a front wall made of synthetic material and forming a sensitive surface (4), an oscillator (10), having a sensor coil (7) with a core (9), situated inside the housing behind the front wall (16) such that the open part of the core (9) is directed towards the sensitive surface (4), a hollow cylindrical metal element (3) lying perpendicular to the sensitive surface (4) and surrounding the core (9), as well as a measuring circuit (11) for measuring damping of oscillations of the oscillator (10) arising from presence of eddy currents. The core (9) is radially surrounded by a metal layer having low resistivity of less than 15 mcOm·cm and thickness of less than 40 mcm. In an alternative version, this thin metal layer can be excluded if resistivity of the metal element (3) is in the range of 15-50 mcOm·cm.

EFFECT: improved embeddability of the sensor without detriment to operating range.

15 cl, 7 dwg

FIELD: measurement equipment.

SUBSTANCE: sensor comprises a coil with a movable core made of a ferromagnetic material. The core is connected mechanically with a monitored object by means of a steel non-magnetic stem. The coil excitation winding is made with a wire by turn winding along the entire length of the sensor travel. Two measurement windings are made above the excitation winding and connected back to back. In the steel non-magnetic stem there are four longitudinal slots symmetrically relative to the axis.

EFFECT: increased symmetry of output characteristic under high values of sensor travel.

2 dwg

FIELD: physics.

SUBSTANCE: inductive sensor has an inductance coil, a ferromagnetic core, a square-pulse generator, a stable current generator, an amplitude detector and a display device. The square-pulse generator is the sensor operating frequency and amplitude driving element. The square-pulse generator enables operation of the stable current generator, which is needed to maintain constant (fixed) surge current to the inductance coil. The stable surge current enables to pump energy into the inductance coil during the active phase of the current generator. Induced emf in form of pulses is transmitted to the amplitude detector which integrates said pulses and enables to obtain unipolar voltage at the output with amplitude which is proportional to the value of emf at the current moment in time. The emf value is directly proportional to the inductance of the coil which is determined by the relative position of the ferromagnetic core and the coil.

EFFECT: improved sensitivity, noise-immunity, thermal stability, larger measuring base, possibility of connecting the output of the sensor to a wide range of recording devices, broader functional capabilities.

1 dwg

FIELD: physics.

SUBSTANCE: invention may be used for defining linear displacements of scanners in scanning probe microscopes. Proposed transducer comprises receiving flask and support flask connected to first input of integrator including operating amplifier and vessel. Demodulator and band amplifier are connected in series in between receiving flask and supporting flask to first input of integrator. First modulator and scaling potentiometer are connected in series between receiving flask and integrator output. Second modulator and shift potentiometer are connected in series to supporting flask.

EFFECT: higher accuracy.

1 dwg

FIELD: machine building.

SUBSTANCE: two high-temperature single-turn eddy current transducers are used to measure radial and axial displacement of blade end. Said transducers are arranged with displacement between centers of sensors along turbine wheel axis and in direction of wheel rotation. After conversion of transducer inductance in voltage and code, two magnitudes are selected from set of codes for every blade. Said magnitudes consist of minimum and maximum values corresponding to interaction of blade with every transducer. Said codes and sets of calibration characteristics are used to obtain coordinate components of blade end displacement.

EFFECT: measurement circuit scanning not timed to turbine wheel rotation, fast operation, higher accuracy and validity.

2 cl, 2 dwg

FIELD: machine building.

SUBSTANCE: separate determination of offsets of ends of blades in radial, axial directions and in direction of rotor rotation is performed by means of three high-temperature single-turn eddy-current converters. Converters are arranged on stator casing within three sections of its surface. One point arranged in sensitivity zone of the corresponding converter is chosen in each section. Points are located from each other at four thirds of angular pitch of blade setting on the controlled rotor wheel. Conversion of inductances of sensitive elements to voltages and recording of the corresponding digital codes is performed per one rotor turn. At that, converters perform the functions of operating and compensation converters alternately with input of each pulse of synchronised sequence, which is shaped when the rotor is turned through an angle equal to one third of angular blade setting pitch.

EFFECT: improvement of quick action due to shortening of the time required for acquisition of information and accuracy due to reduction of dynamic error caused by possible instability of rotor rotation period within the shorter information acquisition time.

1 tbl, 3 dwg

Bearing assy // 2526305

FIELD: machine building.

SUBSTANCE: invention refers to a bearing assy used as a support for a tubular element, in particular, to a lower bearing of the sliding tube of shock-absorber strut of the aircraft landing gear. Bearing (2') assy comprises body (3') supporting the first and the second annular supporting portions with the supporting surfaces, which contact with inner tubular element (1') in the areas distanced from each other in the axial direction. The annular supporting portions are represented either by separate supporting rings (4") installed in body element (3') with the supporting surfaces of different diameters, or by one supporting ring (4"), which can bend in the radial direction and is supported in such a way that the second annular supporting part can bend under effect of a load in the radial direction, while its supporting surface will occupy a position with a diameter bigger than the diameter of the supporting surface of the first annular supporting part (4"). Supporting ring (4") is installed in body (3') in seat (5") with shaped base (7") or conical base (9").

EFFECT: removal of a pinpoint contact between a tubular element and a supporting ring reducing wear and pressure.

13 cl, 5 dwg

FIELD: machine building.

SUBSTANCE: group of inventions relates to machine building. A flexible bush comprises a flexible wall, a ring reinforcing element completely embedded in the flexible wall near an open end, and a holding element. The holding element is installed so that its surface is open along the flexible wall. The outer dimension of the holding element is more than the inner dimension of the ring reinforcing element. A gas spring unit comprises the second end element shifted longitudinally from the first end element. The second end element comprises an end face wall, a side wall and a holding protrusion. The flexible bush is attached between the first and the second end elements. The open end of the flexible bush is inserted along the side wall of the second end element. An assembly method includes the following operations. Installation of the holding element along the open end of the flexible wall. Installation of the flexible wall open end and holding element near the holding protrusion of the end element. Forced movement of the flexible wall open end and holding element along the holding protrusion.

EFFECT: improved reliability of unit performance in tension mode.

17 cl, 33 dwg

FIELD: machine building.

SUBSTANCE: detection device includes hollow housing (11), in which piston (14) is tightly installed and provided with possibility of being moved with sliding. The piston receives pressure in the chamber through inlet (12) of the housing interconnected with that chamber. The piston is retained in the position of pressure overcoming by means of retention device (21). The latter has the possibility of releasing the piston when the specified pressure threshold is achieved or exceeded. The piston is moved in forced manner under action of pressure to indication position. The piston is rigidly attached to pin (27) projecting out of the housing inlet. The pin has the possibility of forced movement with force overcoming of the retention device.

EFFECT: activation of the device both in case of overpressure and collision.

5 cl, 3 dwg

FIELD: transport.

SUBSTANCE: proposed bearing 1 has top housing 3 made from synthetic resin with seat surface 10 for mount device 9 arranged on car body side and annular bottom surface 2, bottom housing 5 made from synthetic resin and annular thrust plain element 6 from synthetic resin. Annular top surface 4 is made integral with bottom housing 5 opposite surface 2, and seat surface 25 of suspended cylindrical spiral spring 7. Said housing is fitted on top housing 3 to rotate about axis O of housing 3 in direction Z. Thrust plain element 6 is arranged in annular clearance between surface 2 and surface 4 and features annular thrust surface sliding to thrust against surface 2 or surface 4. Mount surface 10, working surface and part of surface 25 where against thrusts spring 7 are fitted on bearing axle 1.

EFFECT: efficient bearing to reduce load from car body.

8 cl, 11 dwg

Hydraulic damper // 2413887

FIELD: machine building.

SUBSTANCE: inside cylinder tube and hydraulic damper there are arranged inter-communicating piston cavity and controlled cavity. Both cavities are filled with oil in a pressurised state. Additionally, there is installed a piston travelling in axial direction in the piston cavity and a rod connected to the piston. A flexible element is installed in the control cavity in a position forming a reservoir in the control cavity by means of compression of oil with pressurising force; impact effect is damped so, that the flexible element is forced to elongate and contract when oil flows in/out of the reservoir due to travels of the rod.

EFFECT: simplicity and reduced dimension of design of hydraulic damper, retaining constant amount of oil in piston cavity.

10 cl, 3 dwg

FIELD: machine building.

SUBSTANCE: invention relates to bearing structure of damper in hydraulic actuator. Structure for fixation of damper (72a, 72b) is located in hydraulic actuator. Coats (14, 16) are installed on of the cylinder (12) casing. Piston (18,) is installed inside the cylinder (12) casing. Damper groove (70a, 70b) contains the first and the second grooves. The first groove (74) is open from the side of end surface. The second groove (76) is located adjoining to the first groove (74) and expands relative to it. According to the first version damper groove (70a, 70b) is formed on the end surface of piston (18) perpendicularly to its axis and is directed to covers (14, 16). According to the second version damper groove is formed on the end surface of cover (14, 16) perpendicularly to its axis and is directed to piston (18). Damper (72a, 72b) contains basic element (80) and expanding relative to its guideline element (82).

EFFECT: creation of structure providing easy and reliably install damper on piston or covers.

7 cl, 17 dwg

FIELD: machine building.

SUBSTANCE: invention relates to plain bearing for suspension strut of four-wheel vehicle. Proposed bearing comprises upper collar (3) made in synthetic rubber and furnished with circular lower surface (2), lower collar (5) made in reinforced-synthetic rubber and applied on the said upper collar to revolve about its axis. The said lower collar has also circular upper surface (4) arranged opposite surface (2), and circular thrust part (6) made in synthetic rubber and arranged between surfaces (2) and (4). Lower collar (5) has surface (36) making a seat of cylindrical spring (61) and arranged on lower surface (25). Lower collar (5) comprises circular thrust section (12), upper cylindrical section (24), formed entirely on upper surface (23) of section (12). Surface (4) and lower cylindrical section (26) are formed on lower collar (5). The lower cylindrical section (26) is formed entirely on surface (25) of circular thrust section (22). Note here that surface (25) of section (22) arranged on radially outer surface (26) makes surface (36) of the seat of spring (61). Note also that sections (12), (24) and (26) comprise multiple tapered chambers.

EFFECT: reduced vehicle suspension weight and running gear cost.

13 cl, 6 dwg

Hydrogasifier // 2071574

The invention relates to mechanical engineering and can be used in devices in which the operating conditions it is necessary to have minimal recoil, for example, small arms, in the suspension mechanisms of the vehicle, percussion and so on

FIELD: personal use articles.

SUBSTANCE: on-line system is disclosed, that comprises an intelligent washing machine that is made with the ability of simple and inexpensive use of the intellectual washing machine. Also an advanced type of intelligent household appliance is disclosed, an online system comprising it, and the method to use the on-line system. The washing machine communicates with the server, it is controlled remotely by an external terminal through the server and has a control panel for the user interface. The control panel comprises a mode selection unit, an option selection unit, a start button, a display unit for displaying the status information of the washing machine, and an input unit of the activation of the remote service to set or cancel the activation of the remote service according to the user's selection. The remote control is carried out only when the activation of the remote service is set.

EFFECT: improvement of the device operation.

26 cl, 35 dwg

FIELD: personal usage articles.

SUBSTANCE: proposed is a method to control a laundry treatment machine. According to the method to control a counterweight-containing laundry treatment machine, an equilibration stage is implemented at least three times within the rapid rotation cycle. The following stages are implemented: - stage whereat the drum equilibration is performed at least one time before and after the drum rotation rate transgressing the transient area; - stage whereat one determines the machine irregular vibration area; - equilibration stage carried out at least once before the drum rotation rate falls within the irregular vibration, area while the drum rotation rate passes through the irregular vibration area and after the drum rotation rate has passed through the irregular vibration area.

EFFECT: possibility to significantly reduce the noise made during laundry treatment in the course of a rapid rotation cycle implementation.

54 cl, 18 dwg

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