SU1644173A1 - Pneumatic generator for producing continuous ramp pressure signal - Google Patents

Description

(21) 4686962/24

(22) 03.05.89

(46) 04.23.91. Bgl. K 15 (75) M.I. Kiryukov, A.I. Biryukov and I.M.Biryukov

(53) 621.525 (088.8)

(56) USSR Copyright Certificate F 1234670, cl. F 15 C 3/16, 1983.

USSR author's certificate 1395855, cl. F 04 B 13/00, 1986.

(54) PNEUMATIC GENERATOR OF NON-PREVIOUS FISH FISHING LINEAR CHANGE OF PRESSURE

(57) The invention relates to pneumatic computing, namely, devices designed to generate a linearly decreasing and increasing pressure. The purpose of the invention is to simplify the design. The pneumatic generator contains the first element 1 having one membrane 2, the hard center 3 of which is associated with springs 4, 5 installed

in the deaf 6 and flow-through 7 chambers located on both sides of the membrane 2, and the nozzle 8 installed in the chamber 7; the throttle 22, the inlet of which is connected to the chamber bis by the feed channel 20, and the second element 9 having two membranes 10, 11 of different effective areas, rigid centers 12, 13 of which are connected between themselves with the rod 14, the spring 23 and the nozzle 16 installed in the first the flow chamber 15 located between the membrane 11 of a smaller effective area and the housing. The deaf chamber 21 of the element 9 is located between the membranes 10, 11. The chamber 15 communicates with a second flow chamber 19 located between the membrane 10 of a larger effective area and the body, and the nozzle 16 is connected with the capacity 17 and with the output channel 18. The nozzle 8 is connected to the chamber 19 element 2, the camera 21 of which is connected to the channel 20.1 Il.

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The invention relates to pneumatic computing, namely, devices designed to form a linearly decreasing and increasing pressure.

The aim of the invention is to simplify the construction of the generator.

The generator circuit is shown in the drawing.

The generator contains the first differential pressure regulator — the first element 1 having a membrane 2, the hard center 3 of which is associated with springs 4 and 5. Spring 4 is installed in the deep chamber 6, and spring 5 in the flow chamber 7, in which installed nozzle 8.

The second pressure differential regulator of the generator — the second element 9 has a membrane 10 of a larger effective area and a membrane 11 of a smaller effective area, rigid centers 12, 13 of which are connected by a stem 14 In the first flow chamber 15 a nozzle 16 is installed, connected to capacity 17 and output channel 18. Peva flow chamber. 15 communicates with the second flow chamber 19, which is connected to the nozzle 8.

The feed channel 20 is connected to deaf chambers 6, 21 and the entrance of the throttle 22, connected by an outlet to the flow chamber 7. In the flow chamber

15 a spring 23 is installed. In the initial state, the nozzles 8 and

16 by the force of the springs open.

The generator is switched on by supplying pressure to the channel 20. At the same time, the nozzle 16 is open.

In element 1, chamber 7 is maintained at a pressure less than the supply pressure in chamber 6 by an amount determined by the difference in the forces of the springs 4 and 5, i.e. throttle 22 maintains a constant pressure differential. Due to this, the air flow through the throttle 22 is constant and, therefore, the pressure in the tank

17 and in the output channel 18 increases linearly.

If the feed channel is connected to the atmosphere, the nozzle 8 will open fully734

stew. In this mode, the throttle 22 also maintains a constant pressure drop by covering the nozzle 16. This pressure drop is determined by the difference in effective areas of the membranes 10, 11. and the force of the spring 23. In this mode, the pressure in the tank 17 and the output canape 18 decreases linearly .

A mode is also possible in which the feed channel is connected to a vacuum source. In this case, the nozzle 8 is open. The throttle 22 maintains the pressure drop, and the pressure in the tank 17 and the outlet channel 18 decreases linearly.

Claims (1)

Invention Formula Pneumatic generator of continuous linearly varying pressure, containing the first pressure differential regulator as the first element having one membrane, the rigid center of which is associated with springs installed in a deaf and flow-through chambers located on both sides of the membrane, and a nozzle installed in the flow-through chamber a throttle whose inlet is connected to the deaf chamber of the first element and to the feed channel, and the outlet to the flow chamber of this element, and the second pressure differential regulator as a second element having about two membranes of different effective area, rigid centers of which are interconnected by a stem, a spring and a nozzle installed in the first flow chamber located between the smaller effective area membrane and the housing, with the chamber deaf between the membranes, the first flow chamber communicated with the second flow chamber, a larger effective area between the membrane and the housing, and the nozzle of the second element is associated with the container and the output channel, characterized in that, in order to simplify the design, the nozzle of the first ementa connected to the second flow chamber of the second element, deaf chamber which is connected to the supply channel.