Invention Grant
- Patent Title: Counter-rotating gearbox for tip turbine engine
- Patent Title (中): 尖端涡轮发动机的反向旋转变速箱
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Application No.: US13089450Application Date: 2011-04-19
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Publication No.: US08950171B2Publication Date: 2015-02-10
- Inventor: Gabriel Suciu , Brian Merry , Michael E. McCune
- Applicant: Gabriel Suciu , Brian Merry , Michael E. McCune
- 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: B63H11/00
- IPC: B63H11/00 ; F02C3/073 ; F02C3/107 ; F02C3/08 ; F02K3/068 ; F02C7/36 ; F04D25/04 ; F16H48/10

Abstract:
A tip turbine engine provides an axial compressor rotor that is counter-rotated relative to a fan. A planetary gearset couples rotation of a fan to an axial compressor rotor, such that the axial compressor rotor is driven by rotation of the fan in a rotational direction opposite that of the fan. By counter-rotating the axial compressor rotor, a final stage of compressor vanes between the final stage of compressor blades and inlets to the hollow fan blades of the fan are eliminated. As a result, the length of the axial compressor and the overall length of the tip turbine engine are decreased.
Public/Granted literature
- US20110200424A1 COUNTER-ROTATING GEARBOX FOR TIP TURBINE ENGINE Public/Granted day:2011-08-18
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