SU844884A1 - Pulse-type annular electrodynamic valve - Google Patents

Description

I

The invention relates to reinforcement engineering and can be used in physical otgshovkah, which require a quick intake of a portion of gas into the vacuum chamber.

A pulsed electrodynamic valve is known, in which the valve body in the form of a metal band overlaps the holes on the outer cylindrical surface of the body Ci.

The disadvantages of such valves are the asymmetry of the gas flow and the inconvenience of operating the valve due to the location of the penta in the high-pressure chamber.

A pulse electrodynamic valve is known, in the casing of which there is installed a locking member controlled by an electromagnet, made in the form of an annular plate flanged along the edges, blocking the inlet channel, and a flat ring of elastic material between the locking member and the reflector 2,

The disadvantage of this valve is the location of the cavity of the vacuum chamber of an electromagnet with a large surface of insulating material, evolving gases at low pressures, which makes it difficult to obtain a high vacuum and this limits the scope of application of the valve, besides with low gas pressure in the high pressure chamber pressed against the saddle unreliably.

The aim of the invention is to expand the field of application of the valve, including in high-vacuum installations and at low pressurized gas pressures.

The goal is achieved by the fact that the inlet channel is placed on the outer side of the flanged edge of the locking organ, and on the side opposite to the electromagnet, an annular protrusion is made separating the inlet channel from the high pressure cavity. The drawing shows the proposed valve in the section. In the through annular cavity% of sorpus 1, an annular electromagnet 2 is installed that controls the locking member 3, made in the form of a duralumin flat annular plate with flanged edges, and an annular protrusion 4; for example rubber. The protrusion 4 separates the high-pressure cavity 7 from the filler channel 8, which communicates with the evacuation chamber. The locking organ pressurizes gas in cavity 7 and resilient 6 to seals 9 and 10 and blocks access of high pressure gas to the inlet channel, and also separates cavity 11 between the valve and electromagnet from the inlet channel. The electromagnet is attached to the housing by bolting using a

Calling the O-rings 12.

The valve operates in the following manner.

When a capacitor discharge current is passed through an electromagnet, due to the electrodynamic interaction between the electromagnet and the shut-off organ, the latter quickly departs from the seals 9, 10, opens the access of gas to the inlet channel and

an electromagnet, an annular protrusion separating the inlet channel from the high pressure cavity.

Sources of information taken into account in the examination 1. USSR author's certificate 173555, cl. F 16 K 31/02, 1965.

2. USSR author's certificate No. 543805, cl. F 16 K 31/02, 1977. Compresses ring 6, the valve opens briefly. After the capacitor is discharged, the locking member returns to its initial position by the elastic force of the ring 6 and blocks access of the gas from the high pressure chamber to the inlet channel.

Claims (1)

 An inventive pulse electrodynamic valve, in the casing of which a valve controlled by an electromagnet is installed in the form of a ring plate flanged along the edges, blocking the inlet channel and a flat ring of elastic material between the reflector and the valve in order to expand the functional capabilities, the inlet channel is located on the outer side of the flanged edge of the locking member, and, on the locking organ, on the side opposite