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US 2006/0065244 A1Published application
Twist-lock fuel injector assembly
AssigneeFord Global Technologies, LLC
InventorsJohn Norcutt, John Kilby, Kevin Fulmer
Life of this patent
Estimating the term…
Abstract
A fuel system and associated method include a fuel injector and associated injector cup having an integral device that provides rotational orientation while allowing axial sliding engagement of the fuel injector relative to the cup after assembly. One embodiment includes retention tabs in the cup that engage corresponding grooves in the injector.
Claims20
A fuel system for an internal combustion engine, the fuel system comprising:
- a fuel injector cup for connecting to a fuel rail to distribute fuel;
- and
- a fuel injector having one end adapted for insertion into the fuel injector cup, wherein the fuel injector cup and the fuel injector include a coupling device that allows axial movement of the fuel injector relative to the fuel injector cup after the fuel injector and fuel injector cup have been assembled while limiting rotational movement therebetween.
A fuel system for a multiple cylinder internal combustion engine, the fuel system comprising:
- a fuel injector cup adapted for connecting to a fuel rail for distributing fuel, the fuel injector cup including at least one retention tab extending radially inward;
- and
- a fuel injector having a top portion insertable into the fuel injector cup, the top portion including at least one groove that cooperates with the at least one retention tab to limit rotational movement while allowing axial movement between the fuel injector cup and the fuel injector after assembly.
A method comprising:
- aligning a coupling device associated with a fuel injector cup with a coupling device associated with a fuel injector;
- and
- engaging the coupling devices until reaching a locking position that allows relative axial movement but limits rotational movement between the fuel injector cup and the fuel injector.
Dependencies are inferred from the claim text.