Fuel injector with controlled high pressure fuel passage

Details Fuel injector with controlled high pressure fuel passage Fuel injector with controlled high pressure fuel passage

2005-03-22

2005-03-22

Miller, Carl S. (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel injection system

C123S458000

Reexamination Certificate

active

06868831

ABSTRACT:
A unit fuel injector, the injector internally preparing fuel during an injection event at a pressure sufficient for injection by means of an intensifier driven by a pressurized non-fuel actuating fluid selectively ported to the intensifier, includes a selectively actuatable controller interposed in a fuel passage, the fuel passage effecting fluid communication between an intensifier fuel chamber and a needle valve, the controller being shiftable between an open and a closed disposition for selectively opening and closing the fuel passage during the injection event A control apparatus and a method of injection timing control are further included.

REFERENCES:
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patent: 4706932 (1987-11-01), Yoshida et al.
patent: 5526791 (1996-06-01), Timmer et al.
patent: 5605134 (1997-02-01), Martin
patent: 5651345 (1997-07-01), Miller et al.
patent: 5862792 (1999-01-01), Paul et al.
patent: 5906351 (1999-05-01), Aardema et al.
patent: 5931139 (1999-08-01), Mack
patent: 5984200 (1999-11-01), Augustin
patent: 6029632 (2000-02-01), Augustin
patent: 6119960 (2000-09-01), Graves
patent: WO 0055496 (2000-09-01), None
“DaimlerChrysler Pressure Controlled CR of HDD,” AVL, S492/S3/99, IMechE Publ. 1999-1Z.

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