Invention Grant
US08561414B1 Gas turbine engine mid turbine frame with flow turning features
有权
燃气涡轮发动机中涡轮机架具有流动转向特征
- Patent Title: Gas turbine engine mid turbine frame with flow turning features
- Patent Title (中): 燃气涡轮发动机中涡轮机架具有流动转向特征
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Application No.: US13778202Application Date: 2013-02-27
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Publication No.: US08561414B1Publication Date: 2013-10-22
- Inventor: Thomas J. Praisner , Shankar S. Magge , Matthew B. Estes
- Applicant: United Technologies Corporation
- Applicant Address: US CT Hartford
- Assignee: United Technologies Corporation
- Current Assignee: United Technologies Corporation
- Current Assignee Address: US CT Hartford
- Agency: Carlson, Gaskey & Olds, P.C.
- Main IPC: F02D9/02
- IPC: F02D9/02

Abstract:
A gas turbine engine includes first and second stages having a rotational axis. A circumferential array of airfoils is arranged axially between the first stage and the second stage. At least one of the airfoils have a curvature provided equidistantly between pressure and suction sides. The airfoils extend from a leading edge to a trailing edge at a midspan plane along the airfoil. An angle is defined between first and second lines respectively tangent to the intersection of the midspan plane and the curvature at airfoil leading and trailing edges. The angle is equal to or greater than about 10°.
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