Hydraulically-actuated fuel injector with direct control needle valve

摘要: A hydraulically actuated fuel injector includes an body having actuation fluid inlet and a needle control chamber. hydraulic means within the pressurizes in body. The valve solenoid is movable to open close inlet. member closing surface exposed pressure valve, which utilizes same solenoid, mounted chamber source of high fluid. slower response time allows for direct fast responding by single acting solenoid.