发明名称 |
Rotor brake and windmilling lubrication system for geared turbofan engine |
摘要 |
A journal bearing provides lubrication to planetary gears during windmilling operation of a fan section. A primary oil pump provides oil from an oil supply during driven operation of the fan and a secondary oil pump driven by a generator provides oil during windmilling operation of the fan. The generator acts as a dynamic brake when the aircraft is grounded to prevent windmilling. A switch selects between the primary and secondary oil pump and controls the brake application.
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申请公布号 |
US7849668(B2) |
申请公布日期 |
2010.12.14 |
申请号 |
US20060552750 |
申请日期 |
2006.10.25 |
申请人 |
UNITED TECHNOLOGIES CORPORATION |
发明人 |
SHERIDAN WILLIAM G. |
分类号 |
F02C7/06 |
主分类号 |
F02C7/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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