ELECTRICALLY-HYDRAULIC CONTROL NOZZLE Russian patent published in 2020 - IPC F02M47/02 F02M55/04 F02M61/16 F02M63/02 F02M51/06 

FIELD: machine building.

SUBSTANCE: invention relates to engine building, particularly, to diesel engines with accumulator fuel system of Common Rail type operating in wide range of rotation frequencies and loads. Nozzle with electrohydraulic control is an assembly module comprising a housing with a damping volume E in it, an electromagnetic control valve with a plate-like locking spring 19, sprayer 1 with locking needle 15, hydraulic booster piston 17 with rod, spring 23 retaining needle 15 on support seat and control chamber in form of volume limited on one side by hydraulic booster piston, and on the other side - drain channel from this volume, closed shutoff gate of control electromagnetic valve.

EFFECT: invention improves inter-cycle stability of fuel feed and nozzle speed by mounting a damping volume built into the nozzle housing upper part, use of hydraulic booster nozzle and plate return spring of electromagnetic valve with normally-closed gate locking fuel drain from nozzle control chamber is used in drive of locking needle.

1 cl, 1 dwg