ELECTROHYDRAULIC INJECTOR WITH POSSIBILITY OF FORMATION OF SUPPLY LAW

摘要

FIELD: engine devices and pumps.;SUBSTANCE: invention can be used in battery-based fuel supply systems with electronic control for internal combustion engines (ICE). An electrohydraulic injector (EHI) with the possibility of forming a fuel supply law is proposed, comprising of a housing 2 with fuel supply 3.1-3.3 and draining 4 channels placed therein, a valve 14 with an electric drive and an inlet channel 15. The EHI also has a diffuser 6 with spray nozzles 16 and a needle 17 formed therein. Between the housing of the EHI and the end of the needle 17 there is a control chamber 21 communicating with the fuel supply channels 3 through an inlet 22 channel with an inlet nozzle 23 and communicating with the inlet channel 15 through an outlet channel 24 with the outlet nozzle 25. In the control chamber 21 there is an additional valve 26 with a spring and a serial channel 28. The additional valve 26 with the serial channel 28 is made parallel to the outlet channel 24 and has the capability of communicating the control chamber 21 to the inlet channel 15.;EFFECT: stable formation of the specified profile of the fuel supply characteristic to reduce emissions of toxic components with exhaust gases and increase in the efficiency of piston engines.;9 cl, 5 dwg