INTERNAL COMBUSTION ENGINE FUEL INJECTING DEVICE Russian patent published in 2002 - IPC

FIELD: mechanical engineering; fuel injecting devices. SUBSTANCE: device has valve member of distributing valve provided with pusher installed for displacement in guide hole on one end of which, projecting from guide hole, loading surface is found, and on other end, projecting from guide hole from opposite side, shutoff member is installed made for reciprocation in valve chamber under action of pusher. First working surface engaging with first seat is made on side of shutoff member pointed to distributing space, and on its other side, opposite to first working surface, second working surface is made engaging with second seat located at inlet into drain channel opposite to first seat. Distance between first and second seats in such that shutoff member being in intermediate position between both seats is free from contact with neither of seats providing connection through valve chamber between the parts of drain channel which adjoin corresponding seats. EFFECT: provision of injection of minimum amounts of fuel at operation of internal combustion engine with preliminary and main injection, reduced time losses and possibility of accurately adjusting injection process. 9 cl, 3 dwg