Fuel injector assembly
AssigneeGM Global Technology Operations LLC
InventorsAbhishek Kumar Sahu, Asok K Sethy
Life of this patent
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Abstract
A fuel injector assembly for a vehicle includes an engine head, a fuel injector, and a preloading insert. The engine head defines a bore wherein the bore includes a head region proximate to the corresponding combustion chamber. The pre-loading insert may be disposed within the bore at the head region. The pre-loading insert may be configured to apply a tensile hoop stress to the head region of the bore causing plastic deformation to the head region while also supporting the fuel injector within the bore. The fuel injector may be configured to dispense fuel into a combustion chamber.
Claims17
A fuel dispersion assembly for a vehicle comprising:
- an engine head defining a bore, the bore having a head region;
- a fuel injector;
- and
- a pre-loading insert disposed within the bore wherein the bore supports the pre-loading insert via a tensile hoop stress distributed between the pre-loading insert and the bore at the head region of the bore.
A vehicle engine comprising:
- an engine head defining a bore, the bore having a head region;
- an engine cylinder bank affixed to the engine head;
- a fuel injector configured to dispense fuel into the engine cylinder bank;
- and
- a pre-loading insert disposed within the bore, the pre-loading insert being supported by the bore via a tensile hoop stress distributed between the head region of the bore and the pre-loading insert.
The vehicle engine as defined in claim 16 wherein the pre-loading insert is formed from a steel alloy.
Dependencies are inferred from the claim text.