VALVE TO FEED GAS INTO INTERNAL COMBUSTION ENGINE Russian patent published in 2006 - IPC F02M21/02 F16K31/02 

FIELD: mechanical engineering; internal combustion engines.

SUBSTANCE: proposed valve contains body with electromagnetic drive with housing of electromagnet and shutoff device. Shutoff device includes gate in form of plate made of ferromagnetic material, and seat. One side of gate points to stop made of form of projecting bead on end face of electromagnet housing, and other side points to seat made of paramagnet material with sealing surface in form of bead separating gas supply space from gas feed space. Seat is separated from electromagnet housing by bushing with uniformly spaced holes to pass gas. Two ring grooves are made on sealing surface of valve seat. Inner groove is constantly connected with gas supply space by channels, and through end face clearance between gate and seat, when valve is open, with gas feed space and simultaneously with outer ring groove. Outer groove is connected through end face clearance with gas supply space and simultaneously is constantly connected through channels with gas feed space. Gate in form of plate is suspended on two extension springs. Lower spring exceeds upper spring in force.

EFFECT: improved mass-dimensional characteristics of valve, reduced power consumption, improved operation reliability.

2 cl, 1 dwg