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US 6,186,122 B1Granted
Snap-lock retainer for a fuel injector
AssigneeSiemens Automotive Corporation
InventorJohnny Leung
Life of this patent
Estimating the term…
Abstract
A fuel injector assembly comprises a fuel injector having an inlet end and an outlet end, and further having an associated fuel rail assembly. An o-ring seal is located approximately at the inlet end to prevent fluid from leaking out of the fuel injector and the fuel rail assembly. A groove in the inlet end is located above the o-ring seal, and a retainer member is constructed to be received into the groove to provide positional constraint to the o-ring seal.
Claims8
A fuel injector assembly comprising:
- a fuel injector having a fuel injector housing and further having an inlet end and an outlet end associated with the fuel injector housing;
- an o-ring seal located approximately at the inlet end to prevent fluid from leaking out of the fuel injector;
- a mating component comprising a groove formed in the inlet end of the fuel injector housing, between the inlet end and the o-ring seal;
- and
- a retainer member cooperatively engaging the mating component to provide positional constraint to the o-ring seal.
2 more elements
A fuel injector assembly comprising:
- a fuel injector having a fuel injector housing and further having an inlet end and an outlet end associated with the fuel injector housing;
- an o-ring seal located approximately at the inlet end to prevent fluid from leaking out of the fuel injector;
- a mating component formed in the inlet end of the fuel injector housing, between the inlet end and the o-ring seal;
- a retainer member cooperatively engaging the mating component to provide positional constraint to the o-ring seal;
- and
- a lead-in chamfer that forces the retainer member to stretch over the inlet end during installation of the retainer in the mating component.
3 more elements
A method for fabricating a fuel injector assembly comprising the steps of:
- providing a fuel injector body housed in a fuel injector housing, the fuel injector body having an inlet end and an outlet end;
- locating an o-ring seal approximately at the inlet end to prevent fluid from leaking out of the fuel injector;
- forming a groove in the inlet end of the fuel injector housing, between the inlet end and the o-ring seal;
- and
- receiving a retainer member into the groove to provide positional constraint to the o-ring seal.
2 more elements
Dependencies are inferred from the claim text.