Fuel Injector to Fuel Rail Coupling
OwnerDean M. Pepperine, Kevin R. Keegan +3inventors
InventorsDean M. Pepperine, Kevin R. Keegan, Chris M. De Minco, Kirk W. Caloroso, Jared I. Meeker
Life of this patent
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Abstract
A threaded fastener having a conical seat is provided to mechanically couple a fuel injector assembly to a fuel rail assembly. By mating the conical seat with a spherical collar integral with the fuel injector assembly, an injector coupling is provided that mechanically supports loads from relatively high fuel pressure and combustion pressure while allowing the injector assembly to pivot relative to the fuel rail assembly. A biasing member is provided to pre-load the spherical collar against the mating conical seat.
Claims16
A fuel injector to fuel rail coupling of an internal combustion engine, comprising:
- an injector socket in fluid communication with said fuel rail;
- a coupling member matingly attachable to said socket adapted to capture said fuel injector and to connect said fuel injector to said fuel rail;
- and
- a biasing member that enables said fuel injector to pivot relative to said injector socket within said coupling member and urges said fuel injector into contact with said coupling member;
- wherein said injector socket includes a first threaded section, said coupling member includes a second treaded section adapted to matingly connect with said first threaded section for connecting said fuel injector to said fuel rail.
A hanging injector fuel system for an internal combustion engine, comprising:
- a fuel rail assembly including an injector socket in fluid communication with a fuel distribution conduit;
- a fuel injector assembly including a housing and a coupling member, wherein said coupling member captures said housing and connects said fuel injector assembly to said injector socket;
- and
- a biasing member that enables said fuel injector assembly to pivot relative to said injector socket and urges said fuel injector into contact with said coupling member;
- wherein said injector socket includes a first helical thread, wherein said coupling member includes and a second helical thread, and wherein said first helical thread mates with said second helical thread.
Dependencies are inferred from the claim text.