ELECTROMAGNETIC VALVE Russian patent published in 2002 - IPC

FIELD: electromagnetic valves used in control systems of automobiles. SUBSTANCE: valve includes electromagnet having winding with terminals closed by means of frame of magnetically soft material. Housing of valve is builtup one, it includes flange and sleeve mutually joined by means of non-magnetic spacer. Armature is placed inside valve housing and it has ducts connecting inner cavity of valve with atmospheric inlet. One end of armature engages with elastic member arranged between armature and stopper; its other end in zone of non-magnetic spacer forms together with housing discharge valve pair. Pusher is mounted in armature and it engages with locking member of discharging valve. The last has stem passing through guiding apertured sleeve and engaging with seat. Spring is placed between sleeve and locking member of inlet valve. Working effort of said spring is higher than effort of elastic member acting upon armature. Distributing box has cavity communicated with inlet ducts and having diverting passage connected with valve cavity. Seat of inlet valve is separated from housing, it is arranged in cavity of distributing box and it is forced to guiding sleeve of locking member by means of flange of housing for forming diverting passage together with seat end. Electromagnet is removable one; it is forced to flange of housing by means of stopper supporting elastic member in the form of non-return valve of elastic material closing ducts of atmospheric outlet placed along periphery of stopper. Elastic end of valve engages with end of armature passing through central opening of stopper. In other variant of invention electromagnet may be forced to flange of housing by means of stopper in the form of union with sealing gasket. EFFECT: enhanced reliability, increased fluid-tightness degree, lowered labor consumption of making valve, enlarged functional possibilities. 3 cl, 2 dwg