ELECTROMAGNETIC SHUTOFF VALVE Russian patent published in 2013 - IPC F16K31/02 

FIELD: machine building.

SUBSTANCE: electromagnetic shutoff valve includes a body, inlet and outlet connection pipes, a seat, a core, an electromagnet armature, a piston, a shutoff member, a spring and a stock. Piston is located in the body. Shutoff member is located in the piston. One end of the stock is connected to the shutoff member, and the other end is connected to the electromagnet armature. The above armature has the possibility of axial movement. Core and armature of electromagnet are installed in a guide cylinder. An air braking chamber is formed between the core and the armature. The armature is provided with an axial hole, inside which a jet nozzle with a throttle valve is installed, a ball and a spring. The piston has a throttle opening connecting the inlet connection pipe cavity to the inner piston cavity.

EFFECT: improving the valve reliability by reducing impact loads of armature and power consumption.

2 cl, 3 dwg