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US 11,686,475 B2Granted
Fuel injectors and methods of making fuel injectors
AssigneeCollins Engine Nozzles, Inc.
InventorDustin Andrew Borror
Life of this patent
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Abstract
A fuel injector includes an outer body and an inner body. The outer body extends about an axis and has a radially inner surface and a retention groove defined in the inner surface of the outer body. The inner body is positioned within the outer body has an outer surface and a retention tab. The retention tab retains the inner body relative to the outer body by engagement of the retention tab within the retention groove. A is axially offset from the retention tab and fixes the inner body within the outer body.
Claims6
A method of making a fuel injector, comprising:
- positioning an inner body within an outer body;
- engaging a retention tab of the inner body within a retention groove defined within an inner surface of the outer body;
- retaining the inner body relative to the outer body;
- heating the inner body and the outer body to define a joint axially offset from the retention tab along the inner body, wherein the joint is located radially between the inner body and the outer body;
- and
- redundantly retaining the inner body within the outer body with the joint, wherein the retention groove is a recess configured to receive the retention tab therein to prevent axial movement of the inner body in both an upstream and a downstream direction.
3 more elements
A method of making a fuel injector, comprising:
- positioning an inner body within an outer body;
- engaging a retention tab of the inner body within a retention groove defined within an inner surface of the outer body;
- retaining the inner body relative to the outer body;
- heating the inner body and the outer body to define a joint axially offset from the retention tab along the inner body;
- redundantly retaining the inner body within the outer body with the joint;
- positioning one or more intermediate body within the outer body;
- and
- pressing the intermediate body within the outer body such that a retention tab of the intermediate body seats within a second retention groove defined within the fuel injector, wherein the heating includes heating the inner body, the intermediate body, and the outer body to coincidently form a joint axially offset from the intermediate body retention tab along the intermediate body while the joint between the inner body and outer body is formed.
5 more elements
A method of making a fuel injector, comprising:
- positioning an inner body within an outer body;
- engaging a retention tab of the inner body within a retention groove defined within an inner surface of the outer body;
- retaining the inner body relative to the outer body;
- seating a braze ring on the inner body at a location axially offset from the retention tab along the inner body;
- heating the inner body and the outer body to define a joint axially offset from the retention tab along the inner body, wherein the joint includes a braze structure disposed between an outer surface of the inner body and an inner surface of the outer body;
- and
- redundantly retaining the inner body within the outer body with the joint, wherein the retention groove is a recess configured to seat the retention tab therein to prevent axial movement of the inner body in both an upstream and a downstream direction, wherein the retention groove is a recess configured to receive the retention tab therein to prevent axial movement of the inner body in both an upstream and a downstream direction.
4 more elements
A method of making a fuel injector, comprising:
- positioning an inner body within an outer body;
- engaging a retention tab of the inner body within a retention groove defined within an inner surface of the outer body;
- retaining the inner body relative to the outer body;
- heating the inner body and the outer body to define a joint axially offset from the retention tab along the inner body;
- and
- redundantly retaining the inner body within the outer body with the joint,
- wherein heating the inner body and the outer body includes interfusing material from the outer body with the inner body in a welding operation, wherein the joint includes a weld structure disposed between the interior surface of the outer body and the outer surface of the inner body wherein the retention groove is a recess configured to receive the retention tab therein to prevent axial movement of the inner body in both an upstream and a downstream direction.
4 more elements
Dependencies are inferred from the claim text.