JPH04106099U - Acceleration sensitive pressure control valve - Google Patents

Abstract

(57) [Summary] [Purpose] By mechanically and electrically operating a valve that adjusts gas pressure by displacing the weight according to acceleration, it is possible to reduce the weight of the weight and quickly respond to changes in acceleration. and improve safety. [Structure] A weight 9 that is linked to valve members 7 and 8 that open and close a high-pressure gas supply path and an exhaust path
1 is displaced by the action of gas pressure, and also by the action of electromagnetic force from the actuator 40 controlled by the control device 53.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is an acceleration-sensitive pressure system that changes and adjusts gas pressure according to the magnitude of acceleration. Regarding control valves.

0002

[Conventional technology]

In recent years, as aircraft become more sophisticated, pilots are exposed to large accelerations and become conscious. Loss of space or spatial disorientation during instrument flight conditions can lead to accidents. There are many examples like this.

0003 In order to prevent accidents caused by such pilots losing consciousness, the acceleration should be reduced. By inflating the bladder according to the size and tightening the pilot's body, the pilot's body is tightened. An anti-acceleration device has been developed to prevent Ilot from losing consciousness. Also, pie In order to prevent lots from losing spatial awareness, which could lead to accidents, Depending on the size, a bladder built into the pilot's seat can be inflated or a pneumatic cylinder can be used. By extending the A device for preventing loss of consciousness has been proposed by the applicant.

0004 Conventionally, the gas pressure supplied to such a bladder was adjusted according to the magnitude of acceleration. The one shown in FIG. 6 is used as an acceleration-sensitive pressure regulating valve. It has an inlet port 101 connected to a source of high pressure gas and a bladder 102. The outlet port 103 and the supply path 104 between the ports 101 and 103 are opened and closed. The first valve member 105, the high pressure gas exhaust port 106, and the outlet port 103 a second valve member 108 that opens and closes the exhaust passage 107 between the acceleration and the outlet port 10; A weight 109 that is displaced by the application of pressure at No. 3 is provided. the Each of the valve members 105 and 108 is attached to the weight 109, and when the acceleration increases, the supply path 1 04 opens, the exhaust passage 107 closes, and when the acceleration decreases, the supply passage 10 4 closes and the exhaust passage 107 opens.

[0005] As a result, when the acceleration increases, the weight 109 moves downward in the figure. By displacing the first valve member 105 along with the displacement, high pressure gas passes through the supply path 104. is supplied to bladder 102 from outlet port 103. Also, the acceleration is small. If the weight 109 is displaced upward in the figure, the outlet port 103 and By opening the exhaust path 107 between the exhaust port 106 and the exhaust port 106, the bladder 102 is The internal pressure is reduced.

[0006] Then, the gas pressure at the outlet port 103 and the acceleration act on the weight. When the forces are balanced, each valve member 105, 108 connects the supply path 104 and The air passage 107 is closed, and the internal pressure of the bladder 102 is maintained at a constant pressure according to the acceleration. It will be done.

[0007]

[Problem that the idea aims to solve]

As aircraft become more sophisticated, rapid response when controlling gas pressure according to acceleration is required. It is requested that the

[0008] Therefore, by increasing the weight of the weight 109, the valve members 105 and 108 can be It is conceivable to increase the operating force and speed up the response to changes in acceleration.

[0009] However, since the weight of aircraft is limited, weight 10 It is undesirable for the weight of 9 to increase.

0010 In view of the above conventional technology, the present invention has a small weight and is resistant to changes in acceleration. The purpose of the present invention is to provide an acceleration-sensitive pressure control valve with good responsiveness.

[0011]

[Means to solve the problem]

The features of this invention include an inlet port connected to a high-pressure gas source and a high-pressure gas source. Exit port of body, exhaust port of high pressure gas, acceleration and gas at exit port A weight that is displaced by pressure and a valve member that is linked to the weight. and the valve member connects a supply path between the inlet port and the outlet port and the exhaust port. Acceleration-sensitive pressure control valve that opens and closes the exhaust path between the air port and the outlet port A pressure sensor that detects the gas pressure at the outlet port and a pressure sensor that detects acceleration are installed at the an acceleration sensor for actuating the weight, an actuator for actuating the weight, and an outlet port. controlling the actuator based on a predetermined relationship between gas pressure and acceleration; The actuator displaces the weight by electromagnetic force. The point is that it can be done.

0012

[Effect]

According to the configuration of the present invention, the control means includes detection signals from the pressure sensor and the acceleration sensor. is input. This input signal provides a predetermined relationship between the gas pressure and acceleration at the outlet port. Based on the determined relationship, the control means outputs a control signal to the actuator. the Based on the control signal, the actuator displaces the weight using electromagnetic force. This c The gas pressure at the outlet port was detected by the acceleration sensor due to the displacement of the eight. This is a predetermined value for acceleration. Therefore, the acceleration and the Electromagnetic force causes the weight to undergo the same displacement as when gas pressure acts on the weight. You can do it.

[0013]

【Example】

Embodiments of the present invention will be described below with reference to the drawings.

[0014] The aircraft acceleration-resistant suit device 1 shown in FIG. A bladder 3 is attached to the bladder 3, and the bladder 3 is supplied with high pressure gas from a high pressure gas source 4. Pressurized gas is supplied via an acceleration sensitive pressure regulating valve 5.

[0015] This pressure regulating valve 5 controls the gas pressure supplied to the bladder 3 according to the magnitude of acceleration. Adjust the force. In other words, as the acceleration increases, the bladder 3 is expanded and the pyro Tightens the lower body of the child, prevents blood from pooling in the lower body, and improves blood circulation to the brain. to prevent the pilot from losing consciousness.

[0016] As shown in FIG. 1, this pressure regulating valve 5 includes a housing 6 and a A first valve member 7 and a second valve member 8 built into the valve 6 and a weight 9 are provided. .

[0017] The housing 6 has an inlet port connected to the high pressure gas source 4 via piping. an outlet port 11 connected to the bladder 3 via piping, and an outlet port 11 connected to the bladder 3 via piping; An open exhaust port 12 is formed. For example, the high pressure gas source 4 is For example, aircraft engine bleed air is used.

[0018] Additionally, inside the housing 6, there is a connection between the inlet port 10 and the outlet port 11. A dividing wall 13 is formed, and an intake opening 14 formed in this partition wall 13 It is closed by a flange 7a formed at the lower end of the first valve member 7 so as to be openable and closable. . As shown in FIG. 3, the intake opening 14 is opened when the first valve member 7 moves downward in the figure. thereby opening the high pressure gas from the inlet port 10 to the outlet port 11. supply route will be opened.

[0019] A compression coil spring 1 is inserted between the flange 7a of the first valve member 7 and the inner surface of the housing 6. 5 is interposed. This spring 15 causes the first valve member 7 to close the supply opening 14. It is pressed upward in the figure to close it. There is a bellow around the spring 15. A bellows 16 is provided at the bottom of the first valve member 7 in the figure. The spring storage chamber 15a is held airtight with respect to the inlet port 10. First valve part The flange 7a of the material 7 has a flange 7a that communicates between the storage chamber 15a and the outlet port 11. A communication hole 17 is formed.

[0020] A flange 7b is provided at the upper end of the first valve member 7 in the figure. A diaphragm 20 is provided between the periphery and the inner periphery of the housing 6. This die The yaphram 20 airtightly closes the space between the outlet port 11 and the exhaust port 12. The flange 7b has an exhaust port for communicating the outlet port 11 and the exhaust port 12. Pores 18 are formed.

[0021] A flange 8b is formed on the second valve member 8, and this flange 8b is connected to the first valve member 8. It is arranged above the valve member 7 in the figure. From the flange 7b of the first valve member 7 , a cylindrical extending portion 7c is integrally formed upward in the figure. Flange 7b and flange A compression coil spring 25 is interposed between the flange 8b and the flange 8b. This allows the second When the valve member 8 is displaced downward in FIG. 1, the flange 8 is moved downward as shown in FIGS. b and the extension part 7c are in contact with each other, and the exhaust port is opened from the outlet port 11 through the exhaust hole 18. 12 is closed.

[0022] The second valve member 8 has an inner circumferential hole 8c, and a guide rod 30 is inserted into this inner circumferential hole 8c as shown in the figure. It is inserted so that it can move freely in the vertical direction. The lower end of the guide rod 30 in the figure is a This stopper 30a allows the inner peripheral hole 8 of the guide rod 30 to be closed. It is prevented from coming off from c. The flange 30b extending from the guide rod 30 A compression coil spring 31 is formed between the flange 30b and the flange 8b. is mediated. This spring 31 has a larger spring constant than the spring 25. There is.

[0023] The guide rod 30 protrudes upward from the housing 6 in the figure, and the wafer is attached to this protrusion. light 9 is attached. This weight 9 moves downward in the diagram due to the increase in acceleration. It is displaced upward in the figure due to a decrease in acceleration.

[0024] The weight 9 is made of a magnetic material, and the weight 9 is displaced by electromagnetic force. An actuator 40 is provided. This actuator 40 has a weight 9 A cover 41 to cover and a pair of upper and lower solenoid coils built into this cover 41 in the figure. 42 and 43, and an actuating device 52. The solenoid coil 42, 4 3 are arranged above and below the weight 9 in the figure. Note that the guide rod 30 has a cover. The flange 30c and cover protrude upward in the figure of -41, and extend from the outer periphery of this protrusion. A compression coil spring 36 is interposed between the bar 41 and the bar 41 . This allows the solenoid By energizing the coils 42 and 43, an electromagnetic force acts on the weight 9, and the weight 9 is displaced in the vertical direction in the figure. In addition, the current applied to the solenoid coils 42 and 43 The amount of displacement of the weight 9 can be controlled by controlling the direction and size of .

[0025] In order to control the actuator 40, the gas pressure at the outlet port 11 is detected. a pressure sensor 50 that detects acceleration, an acceleration sensor 51 that detects acceleration, and a control device 53. are provided. In response to a control signal from the control device 53, the actuator An actuator 52 at 40 applies current to the solenoid coils 42,43.

[0026] The pressure sensor 50 is attached to the outer surface of the housing 6, and the pressure sensor 50 is attached to the outer surface of the housing 6. It communicates with the outlet port 11 through a communication hole 6a formed in the hole 6a.

[0027] Acceleration sensor 51 is attached to the body of the aircraft.

[0028] The control device 53 includes, for example, an input/output device 54, a central processing unit 55, and a storage device 56. It can be configured by a microcomputer equipped with the system. The storage device 56 is A program created based on a predetermined relationship between acceleration and pressure at outlet port 11. Memorize grams. The input/output device 54 includes a pressure sensor 50 and an acceleration sensor. 51 and an actuating device 52. The central processing unit 55 includes each sensor 50, In response to an input signal from 51 and a program stored in storage device 56, the actuating device A control signal is output to 52.

[0029] In the acceleration-sensitive pressure control valve 5 configured as described above, the weight 9 is displaced by electromagnetic force. The weight 9 is electrically actuated by the acceleration and the gas at the outlet port 11. It operates mechanically by being displaced by the action of pressure. Usually electrically operated and If the electromagnetic force no longer acts on the weight 9 due to a failure, etc., it will be activated mechanically.

[0030] First, the mechanical operation of the pressure regulating valve 5 when no electromagnetic force acts on the weight 9 is explained. Explain the movement.

[0031] In the above configuration, when the acceleration increases, the weight 9 moves toward the spring 36 in FIG. The second valve member 8 moves downward against the elastic force, and the second valve member 8 is also moved by the spring 25 along with the weight 9. It moves downward against the elastic force.

[0032] Then, the flange 8b of the second valve member 8 is connected to the extending portion 7c formed on the first valve member 7. and closes the exhaust path between the outlet port 11 and the discharge port 12.

[0033] Furthermore, the second valve member 8 pushes down the first valve member 7 against the elastic force of the spring 15. . As a result, as shown in FIG. 3, the valve is closed by the flange 7a of the first valve member 7. The intake opening 14 opens and the supply path between the inlet port 10 and the outlet port 11 opens. It will be done.

[0034] As a result, high pressure air supplied from the high pressure gas source 4 is supplied from the inlet port 10. It passes through the outlet port 11 and is supplied to the bladder 3.

[0035] Then, as high pressure air is supplied to the bladder 3, the air at the outlet port 11 As the body pressure gradually increases, the first valve member 7 moves upward in the figure via the diaphragm 20. being pushed towards the side. Then, the force due to the acceleration acting on the weight 9 and the exit port When the gas pressure in the first valve member 7 is balanced with the gas pressure in the first valve member 7, as shown in FIG. The supply opening 14 is closed by the screw 7a. This increases the internal pressure of the bladder 3. A predetermined pressure is applied depending on the speed, thereby preventing the pilot from losing consciousness.

[0036] When the acceleration decreases, the force due to the acceleration acting on the weight 9 decreases. , the second valve member 8 moves upward in the figure due to the gas pressure at the outlet port 11. do. Then, as shown in FIG. The exhaust path leading to the port 12 is opened, and the high pressure air inside the bladder 3 is discharged to the outlet port 11, The air is exhausted to the atmosphere through the exhaust hole 18 and the exhaust port 12.

[0037] As the gas pressure inside the bladder 3 gradually decreases, the second valve member 8 moves downward in the figure. The exhaust passage is gradually closed, and the gas pressure at the outlet port 11 and the pressure of the bladder 3 are increased. The internal pressure becomes equal, and the force due to acceleration acting on the weight 9 and the force at the exit port When the gas pressure is balanced, the flange 8b of the second valve member 8 acts as shown in FIG. The exhaust passage is closed. As a result, the internal pressure of bladder 3 changes according to the magnitude of acceleration. maintained at a predetermined pressure.

[0038] Further, according to the configuration of the above embodiment, the gas pressure at the outlet port 11 is Since the pressure acts on the flange 8b through the pressure 18, the pressure never exceeds a certain level. sand That is, when the gas pressure at the outlet port 11 exceeds a certain level, the weight 9 moves downward in the figure. Even if the valve members 7 and 8 are displaced, the spring 31 contracts, so that the valve members 7 and 8 do not displace, and the air supply opening is closed. Since the port 14 is not opened, the gas pressure at the outlet port 11 becomes equal to or higher than a certain pressure. Never. In addition, the internal pressure of the bladder 3 may increase due to some external factor, etc. When the pressure of the mouth port 11 exceeds a certain pressure, the flange 8b moves upward in the figure. It is displaced and separated from the extending portion 7c of the first valve member 7. This allows high pressure from bladder 3. The pressurized gas is exhausted into the atmosphere through the exhaust passage, and the internal pressure of the bladder 3 is reduced. Sunawa In addition, the pressure regulating valve 5 also has the function of a relief valve.

[0039] Next, when the weight 9 is displaced by electromagnetic force, the electrical The operation will be similar to the mechanical operation described above.

[0040] That is, the detection signal of the pressure at the outlet port 11 by the pressure sensor 50 and , an acceleration detection signal from the acceleration sensor 51 is sent to the input/output device 5 to the control device 53. 4, the central processing unit 55 executes the program stored in the storage device 56. A control signal is output from the input/output device 54 to the actuating device 52 according to the timing. that prog The ram is based on a predetermined relationship between acceleration and pressure at outlet port 11. In this example, the predetermined relationship is 3 so that the internal pressure becomes a predetermined pressure that can prevent the pilot from losing consciousness. This is a predetermined relationship.

[0041] The solenoid coil 42 is activated by the actuator 52 in response to a control signal from the controller 53. , 43 are controlled, and the electromagnetic force acting on the weight 9 is controlled. By changing the size and direction, the weight 9 is displaced according to the magnitude of the acceleration. do. This displacement of the weight 9 is similar to that in the case of the mechanical operation described above. As a result, the internal pressure of the bladder 3 is set to a predetermined value according to the magnitude of acceleration, and the pilot loss of consciousness can be prevented.

[0042] Note that the present invention is not limited to the above embodiments.

[0043] For example, if the actuator displaces the weight using electromagnetic force, then As shown in FIG. The direction of the current applied to the coil 62 that attaches the magnets 60 and 61 and covers the weight 9 The amount of displacement of the weight 9 may be controlled by controlling the value or value.

[0044] In addition, in the above embodiment, the present invention was applied to the anti-acceleration suit device 1, but it is limited to this. However, the present invention cannot be applied to a device for preventing spatial disorientation for pilots. Can also be done.

[0045]

[Effect of the idea]

According to the acceleration-sensitive pressure control valve of the present invention, the weight is controlled by electromagnetic force. , to be displaced in the same manner as when acted upon by acceleration and gas pressure at the exit port. This allows you to obtain a large operating force for the valve member without increasing the weight. This makes it possible to speed up the response to acceleration.

[0046] In addition, even if the electromagnetic force stops acting on the weight due to an electrical failure, etc., Mechanical backing occurs when the weight is displaced by the action of acceleration and exit port pressure. This function improves safety.

[Brief explanation of drawings]

[Fig. 1] Cross-sectional view of an acceleration-sensitive pressure regulating valve according to an embodiment of the present invention.

[Fig. 2] An explanatory diagram of the configuration of an acceleration-resistant suit device according to an embodiment of the present invention.

[Fig. 3] Cross-sectional view of an acceleration-sensitive pressure regulating valve according to an embodiment of the present invention

[Fig. 4] Cross-sectional view of an acceleration-sensitive pressure regulating valve according to an embodiment of the present invention.

FIG. 5 is an explanatory diagram of an actuator according to another embodiment.

[Fig. 6] Cross-sectional view of a conventional acceleration-sensitive pressure control valve

[Explanation of symbols]

5 Acceleration sensitive pressure control valve 7 First valve member 8 Second valve member 9 weight 10 Inlet port 11 Exit port 12 Exhaust port 40 Actuator 50 Pressure sensor 51 Acceleration sensor 53 Control device

Claims (1)

[Scope of utility model registration request] 1. An inlet port connected to a high pressure gas source;
It includes a high-pressure gas outlet port, a high-pressure gas exhaust port, a weight that is displaced by the action of acceleration and gas pressure at the outlet port, and a valve member that moves in conjunction with the weight. In an acceleration-sensitive pressure regulating valve in which a supply path between an outlet port and an exhaust path between the exhaust port and the outlet port are opened and closed, the valve includes a pressure sensor that detects gas pressure at the outlet port, and a pressure sensor that detects acceleration. an acceleration sensor for actuating the weight, an actuator for actuating the weight, and a control device for controlling the actuator based on a predetermined relationship between gas pressure at the outlet port and acceleration, and the actuator operates the weight by electromagnetic force. An acceleration-sensitive pressure control valve that is characterized by displacement.