Internal-combustion engines – Charge forming device – Fuel injection system
Reexamination Certificate
2007-01-09
2007-01-09
Gimie, Mahmoud (Department: 3747)
Internal-combustion engines
Charge forming device
Fuel injection system
C123S469000
Reexamination Certificate
active
11126810
ABSTRACT:
A precision fuel rail assembly for direct fuel injection comprising a plurality of formed parts first assembled and positioned loosely on a precision fixture, then joined (e.g. tack welded), by applying a BFM on all joints forming a “green” assembly and firing in a brazing oven, to produce a precision assembly formed from stainless steel parts. A bracket defining a sole plate for the assembly may be formed as a continuous element or a plurality of individual fuel rail brackets. Flanged sockets are attached to the bracket at locations corresponding to the fuel injector locations on an engine bank. Bolt holes are provided along the centerline of the sockets and fuel injectors. The bracket supports a fuel distribution tube via saddle elements disposed between the bracket and the tube. A jump tube supplies fuel from the distribution tube to each socket.
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Badura Charles J.
Colletti Michael J.
Furchill Patrick A.
Keegan Kevin R.
Potter Duane
Delphi Technologies Inc.
Gimie Mahmoud
Marshall Paul L.
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