ELECTROMAGNETIC VALVE (OPTIONS) Russian patent published in 2017 - IPC F16K31/02 

FIELD: electricity.

SUBSTANCE: electromagnetic valve contains a casing 1 with an inlet 2 and an outlet pipebranch 3 and a venting to the atmosphere, a control coil and a spring-loaded armature 7 with a tube 8 installed inside the casing. The tube is located inside longitudinal channel 9 with an axial clearance. Ends of the longitudinal channel are closed by lower 10 and upper valves 11. Lower 15 and upper O-ring seal 16 are installed on the tube, forming an annular cavity together with the channel walls. Radial holes are made in the tube wall opposite mentioned cavity. The inlet pipebranch is connected to the channel between the lower valve and the lower seal, the outlet pipebranch is connected to the cavity between the lower and upper seals, and the venting to the atmosphere is connected to the channel between the upper valve and the upper seal. In the second embodiment, the upper end of the longitudinal channel is closed by valve 11, lower O-ring seal 15 and upper O-ring seal 16 are mounted on the tube. The upper O-ring seal is located at the top of the valve to seal the top of tube 9, the inlet pipebranch is connected to the channel between the valve and the upper seal, and the lower part of the tube is sealed with a lower O-ring seal and is connected to outlet fitting 3.

EFFECT: increased efficiency of the electromagnetic valve.

5 cl, 3 dwg