RU2631097C1 - Device for feeding working fluid - Google Patents

Abstract

FIELD: machine engineering.

SUBSTANCE: device comprises a housing with inlet and outlet pipes arranged inside a housing chamber made of elastic material in the form of a cup, open side turned towards the outlet and connected to the housing, breakable sealing element installed in the outlet pipe, an outlet manifold for the working fluid provided with in a pyrotechnic heater mounted in the manifold and equipped with actuation system. The heater actuation system further comprises a charge of pyrotechnic composition sensitive to shock and a striker contacting with additional charge, a spring-loaded striker and a lock striker of initial position, and in the housing between the outlet pipe and holder location there is a channel in which the sealing element is nonbreakable and mechanically connected with breakable sealing element and the lock striker, the nonbreakable and breakable sealing elements and the mechanical connection therebetween are made to provide movement upon actuation towards the outlet and a passageway through the breakable sealing element of the working fluid.

EFFECT: improved dimensional and weight characteristics, simplified circuit layout of and operation of consumer application on object.

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Description

A device for supplying a fluid working medium relates to hydraulic transport using the pressure of the working gas and can be used to supply various liquids to the consumer.

Known devices for supplying lubricants and other fluid working environments by extruding them from the device body or from the part where the fluid is before actuation, and then transporting it via communications to the place of consumption.

When studying reference information and patent funds, analogues of the invention were identified.

A device for supplying a fluid working medium is described in RU patent No. 2334160, IPC F16N 7/30, publication September 20, 2008, B.I. No. 26, comprising a housing with inlet and outlet nozzles. Inside the casing there is a chamber made of elastic material in the form of a cup, the open side facing the outlet pipe and connected to the casing, and a tubular collector with rounding radii at the free end protruding from the place of sealing the tube in the casing in the form of a console mounted with the possibility of outputting a fluid working medium through the tube. A sealing element is installed in the outlet pipe.

To operate the device, it is enough to use an external source of pressure (working gas) and through the inlet pipe to supply the working gas inside the housing, while the chamber is compressed by the pressure of the working gas to the collector against the wall, and the fluid is squeezed out of the housing.

The disadvantages of this device include the possibility of a breakthrough of the chamber wall when triggered at low temperatures.

It is also known a device for supplying a fluid working medium, described in patent RU No. 2466327, IPC F16N 7/30, F16N 11/10, publication 10.11.2012, B.I. No. 31, comprising a housing with inlet and outlet nozzles. Inside the housing there is a chamber made of elastic material having a longitudinal section in the form of a glass, with its open side facing the outlet pipe. The camera is connected to the housing. Outside the chamber, a collector is installed in front of the outlet pipe with the possibility of outputting a fluid working medium through it. The junction of the camera with the housing is located from the collector at a distance commensurate with the height of the camera. A sealing element is installed in the outlet pipe.

To operate this device, it is also sufficient to use an external pressure source to supply working gas through the inlet pipe through an external pipe into the housing. When this device is activated, extrusion of a fluid working medium is provided not during compression of the chamber, as in the previous device, but by turning the cylindrical part of its wall in the surface of the internal cavity of the housing and the bottom into the collector until it stops.

A common drawback of both analogues is the large variation in operating time when the operating conditions are triggered within the specified limits due to the fact that the dynamic viscosity of the fluid is highly dependent on temperature.

A device for supplying a fluid working medium is described in RU patent No. 2478867, IPC F16N 7/30, publication April 10, 2013, B.I. No. 10, comprising a housing with inlet and outlet nozzles. Inside the housing there is a chamber made of elastic material in the form of a cup, the open side facing the outlet pipe and connected to the housing, and a fluid output manifold that is installed outside the chamber in front of the outlet pipe. A destructible sealing element is installed in the outlet pipe, and a pyrotechnic heater is installed in the collector, containing the main (heating) charge and elements of the heater’s internal activation system (arson of the main charge), made in the form of a pyrotechnic transceiver hinge with inlet and outlet channels.

To connect the heater with the components and elements of the external activation system (with the source of energy necessary to ignite the transceiver hinge), a pipe is made in the heater body. In this case, either a source of electric current (voltage) with an electric igniter and elements of electrical wiring (connecting electrical lines), or a squib with an executive pyrotechnic hitch, the combustion products of which can be transferred from the squib to the nozzle through fire-conducting circuits made, for example, can be used as an energy source in the form of tubes.

A high-calorie pyrotechnic composition can be used for the main charge of the heater, and a pyrotechnic composition that is sensitive to heat for the transceiver portion of its internal activation system.

To operate this device, it is necessary to use an external pressure source to supply working gas through the inlet pipe to the housing through an external pipe, and additionally, through the heater pipe, ignite the transceiver hinge, from the combustion products of which the heater is triggered.

When this device is activated, extrusion of a fluid working medium is ensured, as in the previous analogue, by turning the camera out. In this case, the fluid working medium is heated by the heater and squeezed out of the body cavity much faster. Due to this, in comparison with other analogues, the dispersion of the operating time of such a device when triggered within the specified range of temperature operating conditions is significantly reduced.

This device is selected for the prototype as the closest in technical essence and the achieved result.

The main disadvantages of the device selected as a prototype are:

- a complex device response circuit due to the fact that the involvement of two external components is required:

- a pressure source (for supplying working gas through an external pipeline through an inlet pipe into the housing and increasing the pressure of the fluid working medium in order to ensure its extrusion through the outlet pipe);

- an energy source (for ignition through the heater pipe of the transceiver hinge, from which the heater is activated and provides heating of the fluid working medium);

- the large dimensions and mass of the device due to the need to use for engaging the heater (ignition through the heater nozzle of the transceiver hinge) of external components and elements;

- complex layout of the device at the application.

The objective of the present invention is to improve the overall mass characteristics, as well as simplifying the response circuit of the device and its layout at the application.

When using the invention, the following technical result is achieved:

- reduced dimensions and weight of the device due to the exclusion of external components and elements that provide ignition of the transceiver hinge of the heater;

- the response circuit of the device and its layout at the application site are simplified due to the fact that only a pressure source is required to ensure the supply of working gas through an external pipeline through the inlet pipe into the housing and the pressure of the fluid is increased.

The solution of the problem and the achievement of the technical result are ensured by the fact that in the device for supplying a working fluid using working gas pressure, comprising a housing with inlet and outlet nozzles, a chamber made of elastic material placed inside the housing in the form of a cup, the open side facing the outlet nozzle and connected to the housing, a destructible sealing element installed in the outlet pipe, a fluid output manifold and a pyrotechnic mounted in the collector a heater equipped with an activation system, according to the invention, the heater activation system further comprises a sample of a pyrotechnic composition sensitive to shock, and strikers in contact with an additional sample, a spring-loaded striker and a retainer of the initial position of the striker, and in the housing between the outlet pipe and the location of the striker retainer a channel in which a non-destructible sealing element is installed mechanically connected with a destructible sealing element and fi Satoru, wherein indestructible and erodible sealing elements and mechanical connection therebetween operable to when triggered possibility of moving towards the outlet nozzle and passing through the destructible sealing element working fluid.

Thus, the proposed device contains the following distinctive features:

- the heater activation system further comprises a sample of a pyrotechnic composition sensitive to shock, and a striker in contact with an additional sample, a spring-loaded striker and a retainer of the initial position of the striker;

- in the device’s body between the outlet pipe and the location of the striker fixer, a channel is made in which an indestructible sealing element is installed, mechanically connected to the destructible sealing element and the fixer;

- indestructible and destructible sealing elements, as well as a mechanical connection between them, are made so that, when triggered, the possibility of moving towards the outlet pipe and passage through the destructible sealing element of a fluid working medium is activated.

The presence of an additional hitch of a pyrotechnic composition sensitive to shock and a striker in contact with the additional hitch, a spring-loaded striker and a fixer of the initial position of the striker, makes it possible to ignite the transceiver hinge of the heater from the additional hitch due to the impact of the spring-loaded striker with the striker in contact with this hitch. As a result, the use of an external energy source for igniting the transceiver hinge of the heater is not required in this case. As a result, the overall mass characteristics of the device are improved, and the response circuit of the device and its layout at the application are also simplified.

The implementation in the device’s body between the outlet pipe and the location of the fixer of the striker of the connecting channel, in which an indestructible sealing element is installed, mechanically connected with the destructible sealing element and the clamp, it is possible to release the striker (release of the lock from the mesh with the groove on the striker) when the device is activated, which also contributes to the possibility of ignition of the transceiver hinge of the heater from the additional hinge due to accents of a spring-loaded striker with a striker in contact with this hitch. As a result of this, the need to use both an electric current source (voltage) with an electric igniter and wiring elements (connecting electric lines), and a squib with an executive pyrotechnic hitch and fire-conducting circuits are eliminated. As a result, as mentioned above, the overall mass characteristics of the device are improved, as well as the response circuit of the device and its layout at the application are simplified.

The implementation of indestructible and destructible sealing elements and a mechanical connection between them, ensuring that when the device is triggered, it is possible to move towards the outlet pipe and pass through the destructible sealing element of the fluid working medium, and it is possible to fix the hammer using the increasing pressure of the fluid working medium during the operation of the device, which also contributes to the possibility of eliminating the need to use an external energy source for ignited the transceiver hitch of the heater. As a result, the overall mass characteristics of the device are improved, and the response circuit of the device and its layout at the application are also simplified.

Together, the essential features of the proposed device provide the opportunity to solve the above objectives of the invention and achieve the necessary technical result.

An example of a device is illustrated in the drawing.

The device comprises a housing 1 with an inlet pipe 2 for supplying a working gas and an outlet pipe 3 for outputting a fluid working medium 4. An elastic chamber 5 is placed inside the housing 1. A collector 6 is installed coaxially with the chamber 5 in front of the outlet pipe 3. The chamber 5 is connected to the housing 1 when using a sealing element in the form of a shoulder of a T-shaped, located approximately half the height of the inner cavity. The passage channel of the outlet pipe 3 is offset relative to the axis of the housing 1 and is made in the form of separate parts (sections) located at different angles from the manifold 6 to the junction with the transport line of the fluid working medium 4 (not shown in the illustration). In the outlet pipe 3, a destructible sealing element 7 is installed in the form of a cap with a membrane on its bottom.

In the collector 6, a heater 8 is installed, in which pyrotechnic compositions are used:

- sensitive to shock - for ignition hinge 9;

- sensitive to heat - for the transceiver hinge 10;

- high-calorie, slowly burning - for the main charge 11.

The calorific value and the burning rate of the pyrotechnic composition used for the manufacture of the main charge 11, as well as the mass of its working sample, are selected from the condition of ensuring the required operating time of the device.

A hitch of composition 9 is in contact with the striker 12, and at a predetermined distance from the striker 12, a striker 13 is installed with a groove 14 and an o-ring (not shown in the illustration). In the initial state, the annular seal of the hammer 13 provides isolation from the environment of the pyrotechnic compositions 9, 10 and 11, which are located in the internal cavity of the heater 8. The hammer 13 is in contact with the spring 15, which is compressed and becomes operational when the cap 16 is screwed.

The components and elements of the system for activating the heater 8, including the ignition hinge 9, the transceiver hinge 10, the strikers 12, the hammer 13 and the spring 15, are aligned with each other on an axis offset from the axis of the main charge 11, which is mounted coaxially with the chamber 5 and the heater body 8.

In the housing 1 coaxially with the outlet pipe 3 between the destructible sealing element 7 and the location of the drummer 13, a connecting channel 17 is made in which the indestructible sealing element 18 is installed. Moreover, this element and the destructible sealing element 7 are mechanically connected by the pusher 19 using threaded connections and installed with the possibility of movement when the device is triggered towards the outlet pipe 3. In the pusher 19 channels are made (not shown in the illustration) for passage her working environment 4. The retention of the hammer 13 from moving under the action of the force of the spring 15 is provided by the latch 20, which is installed with the entry into the groove 14. The latch 20 is an element of the heater 8 and is installed coaxially with the connecting channel 17. Between the latch 20 and the indestructible sealing element 18, mechanical connection is also made using a threaded joint. In the outlet pipe 3, a compression spring 21 is installed.

In the area of placement of the mechanical coupling elements of the latch 20 with an indestructible sealing element 18, a sleeve 22 with a groove 23 for the passage of the latch is installed on the heater body 8. The width of the groove 23 is made on the basis of the conditions for providing the possibility of the release of the hammer 13.

The present invention is not limited to this example.

The system for activating the heater of the device may include a mechanism for manually or automatically disabling the operation of the heater, depending, for example, on the intended purpose of the operation of the device or external temperature conditions when triggered.

The device operates as follows.

When a command is issued to trigger the device, an external pressure source is turned on (not shown in the illustration). The working gas from the pressure source through an external pipe (not shown in the illustration) through the pipe 2 enters the housing 1 and reaches the wall of the chamber 5. Under the pressure of the working gas, the wall of the chamber 5 bends and turns to the stop of the cylindrical part of the wall in the surface of the inner cavity of the housing 1 , and its bottom - into the collector 6 (the final and intermediate positions of the chamber wall are not shown in the illustration). In the process of turning the chamber 5 out, the increasing pressure of the fluid working medium 4 entering through the openings and channels of the manifold 6 acts on the destructible sealing element 7 and forces it to move towards the outlet from the housing 1, overcoming the compression resistance of the spring 21. Moreover, due to the mechanical connection of the destructible the sealing element 7 with an indestructible sealing element 18, and the indestructible sealing element 18 with a latch 20 begin to move towards the exit from the housing 1 all of these Parts of the device. As a result, the latch 20 disengages from the groove 14 and the firing pin 13 is released. Under the action of the spring 15, the firing pin 13 begins to move, accelerates and contacts the striker 12, resulting in sequential ignition and burning of the pyrotechnic compositions 9, 10 and 11. From exposure to heat, emitted mainly during combustion of the main charge 11, the outer surfaces of the collector 6 and the heater 8 are heated, as well as the fluid of the working medium 4 in contact with them. After reaching a predetermined pressure level of the fluid of the working medium 4 in the bottom of the destructible sealing element 7 breaks the membrane. Under the pressure of the working gas, the heated fluid medium 4 as it is squeezed out of the inner cavity of the housing 1 through the passage channel of the outlet pipe 3 through the transport line enters the place of its consumption (type of destructible sealing element 7 after breaking the membrane, the transport line and the place of consumption of the fluid not shown in the illustration).

In the process of a further increase in pressure, the fluid working medium 4, passing through the openings and channels of the manifold 6, continues to heat up and, thus, is completely squeezed out to the consumer.

To re-operate the device, the destructible sealing element 7 and the heater 8 are replaced, and the remaining elements can be reused. The chamber 5 is again filled with a predetermined amount of fluid 4.

For the manufacture of chamber 5, a rubber mixture is used. Destructible sealing element 7 and indestructible sealing element 18 are made of aluminum alloys, the housing 1, the collector 6 and other components of the device, including heater parts 8, are made of steel or titanium alloys.

In the case of design of the device according to the invention, the following technical result is achieved:

- improving the overall mass characteristics of the device;

- simplification of the scheme for activating the device and its layout at the application.

Claims (1)

A device for supplying a working fluid using working gas pressure, comprising a housing with inlet and outlet nozzles, a chamber made of elastic material in the form of a cup placed inside the housing, the open side facing the outlet nozzle and connected to the housing, a destructible sealing element installed in the outlet nozzle , a fluid outlet manifold and a pyrotechnic heater installed in the manifold equipped with an actuation system, characterized in that the system is activated The heater additionally contains a hinge of a pyrotechnic composition sensitive to shock, and strikers in contact with an additional hitch, a spring-loaded striker and a retainer of the initial position of the striker, and in the housing between the outlet pipe and the location of the striker retainer there is a channel in which an indestructible sealing element is installed, mechanically associated with destructible sealing element and retainer, while indestructible and destructible sealing elements and the mechanical connection between them when triggered, the ability to move towards the outlet pipe and the passage through the destructible sealing element of the fluid working medium is ensured.

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