Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1993-08-03
1994-07-05
Cross, E. Rollins
Internal-combustion engines
Charge forming device
Fuel injection system
123456, 123470, F02M 4702, F02M 5502
Patent
active
053258347
ABSTRACT:
The design and manufacture of past fuel injection systems required extensive modification of the cylinder head in order to provide and actuate hydraulically actuated fuel injectors. Additionally, methods to avoid the cylinder head modifications have presented reliability concerns. The present invention overcomes these problems by providing an adapter assembly releasably connected to the cylinder head. The adapter assembly includes an adapter which has an integrally formed actuating fluid manifold and an integrally formed fuel manifold. The present invention provides a means for communicating between the actuating fluid manifold and the actuating fluid inlet passage of a hydraulically actuated fuel injector and a means for communicating between the fuel manifold and the fuel inlet passage of the fuel injector. Actuating fluid is communicated through the actuating fluid manifold and into the actuating fluid inlet passage in order to actuate the fuel injector. This results in a more reliable system which eliminates costly modifications to the cylinder head.
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U.S. Application No. 07/776,516 filed Oct. 11, 1991, entitled "Hydraulically-Actuated Fuel Injector System Having Separate Internal Actuating Fluid and Fuel Passages".
Ballheimer Benny
Thompson Lloyd E.
Caterpillar Inc.
Charlton Diana L.
Cross E. Rollins
Moulis Thomas N.
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