Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1991-01-31
1992-03-03
Cross, E. Rollins
Internal-combustion engines
Charge forming device
Fuel injection system
123456, 285305, F02M 5502
Patent
active
050923005
ABSTRACT:
The joint between a molded plastic fuel rail and a metal fuel tube uses a metal tube retainer clip to keep the fuel tube inserted within the end of the main fuel rail hole in the molded plastic fuel rail. The molded plastic fuel rail has a slot in its sidewall, and the clip has a forked blade that is inserted through this slot so as to be disposed in interference relationship with an upset bead in the tube to thereby prevent the tube from being withdrawn from the plastic fuel rail. The clip is secured to the fuel rail assembly, either by a resilient clasp portion of the clip snapping onto the metal fuel tube exterior of the plastic fuel rail or by an apertured tab portion of the clip being fastened to the fuel rail by a screw. Where the end of the main fuel rail hole is considerably larger than the diameter of the fuel tube, a tubular plug is used between them. A portion of an injector retainer for retaining the fuel injectors in their sockets in the fuel rail is disposed in interference relationship with the clip to prevent the clip from being removed from the slot unless the injector retainer is first removed from interference relationship with the clip.
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Hornby Michael J.
Imoehl William J.
Boller George L.
Cross E. Rollins
Moulis Thomas N.
Siemens Automotive L.P.
Wells Russel C.
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