ELECTROMAGNETIC VALVE Russian patent published in 2012 - IPC F16K31/06 

FIELD: machine building.

SUBSTANCE: electromagnetic valve comprises a housing with inlet and outlet channels, a seat, a coil, a jacket, and a dividing pipe of non-magnetic material. The pipe is sealed and put on the stopper end. There are gates made on opposite sides of the armature. One locking element covers the seat of the stopper inlet channel, the second interacts with the housing seat when the armature is in a closed position. The top spring-loaded element of the armature is cured in a non-magnetic movable sleeve, the bottom one - directly into a hole of the armature groove. The lower part of the dividing pipe has a ring with projections. When a nut on the stopper is being tightened, the ring tightly presses on a flat part of the L-shaped sealing element. The latter is located in a groove of the jacket bottom part. A restrictive circular protrusion of a smaller diameter is pressed against the part of this groove in the jacket when the ring is being tightened. The second projection on a larger diameter of the ring enters the groove of the jacket with a seat and channels with its outer surface. The surface of the projection inner diameter of a larger diameter serves as a support for conical or flat return spring.

EFFECT: increased leak resistance and reduction in valve wearing.

1 dwg