RU1836600C - Electromagnetic valve - Google Patents

Abstract

The invention relates to pipe fittings and is used to remotely control fluid flows. The invention allows to simplify the design of the valve, reduce energy consumption, weight and size, increase reliability in operation. The goal is achieved in that in an electromagnetic valve comprising a housing with media inlet and outlet channels and a saddle over which at least two cocks are mounted - positioned core: the main measles-locking body with loading and unloading holes in it and the spring-loaded control measles - locking body, the valve is equipped with a fixed body EDSS a seat and a channel therein associated with the input channel, the primary armature-blocking member is formed with a cavity and includes a fixed por-. a spring, and a spring is installed between the main and the controlling core-locking element, and the working gaps between the elements of the core and the stop of the electromagnet determine their full capacity. 1 ill.

Description

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The invention relates to valve engineering and can be used for remote control of working medium flows in their transportation systems.

The aim of the invention is to simplify the design, reduce weight and dimensions, as well as increase reliability in operation,

The drawing shows a General view of the solenoid valve.

The valve consists of a housing 1 with an inlet 2 and an outlet 3 nozzles, inside of which there is a control core 4 - a locking member and a main core 5 locking member, which together with a compensation sleeve 6, made in the form of a stationary piston equipped with a channel 7, are fixed in the housing 1 by means of pins 8. The control core 4 with valve 9 and the main core 5 with valve 10 form a composite shutter. Between the compensation sleeve 6 and the main core is installed a sealing ring 11.

The valve 9 is spring-loaded 12 to the seat 13, made in a fixed piston, and overlaps the control channel 7. In the main cortex 5 - locking body, a drainage hole 14 and longitudinal grooves 15 are made, and in the end part between the stop

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With

16, made on the magnet body 17, a return spring 18 is installed. The electromagnet comprises a control coil 19 and a casing 20.

The operation of the solenoid valve.

When de-energized, the valve is in the closed position.

The working medium enters the inlet pipe 2: and acts on the composite valve shutter, namely, 1 compensation sleeve 6, made in the form of a fixed piston, fixed by pins 8 in the housing 1. The working medium acts through the control channel 7 on the control meas- ure a locking member 4 with a valve 9, which is pressed by a spring 12 to the seat 13 of the stationary piston 6. The sealing ring 11 ensures tightness between the main core 5-locking member and the compensation sleeve (piston) 6.

1 The tightness of the valve 10 is provided by a return spring 18 installed between the stop 16, made on the body of the electromagnet 17 and the main core 5.

The values of the working gaps b and d are set from the condition that the control 4 and the main 5 korea with valves 9 and 10 are fully lifted, and the gap 5i between the stop and the control core is smaller than the gap & between the foot and the main core.

To open the valve, a voltage is applied to the control coil 19 of the electromagnet. The magnetic flux generated by it initially creates excessive pulling force at a small gap and moves the control core 4 together with the pilot valve 9 towards the stop 16, while opening the control channel 7 located on the fixed stationary sleeve b for passage of the working medium.

Two forces act simultaneously on the main measles 5: the force of magnetic attraction and the force acting as a result of the pressure drop, since the area of the drainage hole 14 is smaller than the area of the control channel 7. Under the action of these two forces, the main core 5 moves to the stop 16 as far as it will go, compresses the return spring 18 and

holds in this position by electromagnetic forces. The valve is open.

In order to close the valve, it is necessary to remove the supply voltage.

the action of the springs 12 and 18 closes the pilot 9 and the main 10 valves with the core returning to its original position (in the drawing down). The valve is closed.

To provide axial movement

the main valve it is made of longitudinal grooves 15 located above the seal 11.

The use of this invention in electromagnetic armature can significantly simplify their design, reduce weight, dimensions, energy consumption, because The electromagnet basically works only to control the controller (lightweight construction), core 4 with valve 9 at a small gap d-, and in connection with the introduction of unloading of the main valve 10 and providing the main valve with an additional working medium, reliability is significantly increased and expanded range of applicability of the electromagnetic valve of the reduced design.

Claims (1)

SUMMARY OF THE INVENTION An electromagnetic valve comprising a housing with inlet and outlet channels medium and a saddle, above which two crusts concentrically located are movably mounted: the main crust is a locking body with loading and unloading holes in it and a spring-loaded control measles - a locking member, with the exception that it is equipped with a fixed piston fixed to the housing with a seat and a channel associated with the inlet channel, the main measles - locking member is made with a cavity and covers the stationary piston, moreover, a spring is installed between the main and the governing core, the locking element.