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A fuel injector includes a center tube, a first valve separate from the center tube and surrounding a first end of the center tube and a second valve also separate from the center tube and surrounding a second end thereof. A solenoid is actuable to independently move the first and second valves and

A fuel injector includes a center tube, a first valve separate from the center tube and surrounding a first end of the center tube and a second valve also separate from the center tube and surrounding a second end thereof. A solenoid is actuable to independently move the first and second valves and thereby control the application of fluid pressures to first and second ends of a check assembly, in turn to control injection of fuel into an associated engine cylinder.

대표청구항 ▼

[ We claim:] [8.] A fuel injector, comprising:an injector case defining a central axis;a center tube including a central passage substantially coincident with the central axis over substantially a full length of the central passage for conducting fuel between first and second ends of the central pas

[ We claim:] [8.] A fuel injector, comprising:an injector case defining a central axis;a center tube including a central passage substantially coincident with the central axis over substantially a full length of the central passage for conducting fuel between first and second ends of the central passage;a first flat-seat poppet valve separate from the center tube and surrounding the first end of the central passage;a second flat-seat poppet valve separate from the center tube and surrounding the second end of the central passage; andan actuator for moving the first and second flat-seat poppet valves.