VALVE AND ACTUATOR UNIT FOR HYDRAULICALLY OPERATED NOZZLE WITH ELECTRONIC CONTROL Russian patent published in 1997 - IPC

FIELD: mechanical engineering; fuel injecting devices of internal combustion engines. SUBSTANCE: unit consisting of actuator and valve for nozzle with electronic control has electrically switched on drive unit and device for delivering, collecting and draining of damping liquid from at least one space of unit. If large amount of damping liquid is left in drive unit after shutting down the engine, the liquid might cool which will cause slow response of actuator and valve unit when starting engine from cold and operating cold engine. Delivering, collecting and draining means of proposed device ensure automatic draining of hot damping liquid from unit space after shutting down the engine. EFFECT: improved reliability of starting from cold and operation of cold engine. 12 cl, 13 dwg