Invention Grant
- Patent Title: Compensating for thermal expansion via controlled tube buckling
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Application No.: US15452345Application Date: 2017-03-07
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Publication No.: US10001280B2Publication Date: 2018-06-19
- Inventor: Mark Caples
- Applicant: Delavan Inc.
- Applicant Address: US IA DesMoines
- Assignee: Delavan Inc.
- Current Assignee: Delavan Inc.
- Current Assignee Address: US IA DesMoines
- Agency: Kinney & Lange, P.A.
- Main IPC: F23R3/28
- IPC: F23R3/28

Abstract:
One embodiment includes a fuel injector for a gas turbine engine. The fuel injector has an inlet fitting for receiving fuel. The fuel injector also has an outlet fitting for delivering fuel through a nozzle to a combustor of the gas turbine engine. An injector support extends between the inlet fitting and the outlet fitting and has an internal bore therethrough. A fuel tube extends from the inlet fitting through the internal bore of the injector support to the outlet fitting. The injector support has a greater coefficient of thermal expansion than the fuel tube. At room temperature the fuel tube is under compressive stress such that the fuel tube is buckled. As a result of differential thermal expansion of the fuel tube and the injector support during engine operation the fuel tube is relieved of compressive stress.
Public/Granted literature
- US20170176011A1 COMPENSATING FOR THERMAL EXPANSION VIA CONTROLLED TUBE BUCKLING Public/Granted day:2017-06-22
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