发明名称 |
A MULTI-RATIO ROTORCRAFT DRIVE SYSTEM AND A METHOD OF CHANGING GEAR RATIOS THEREOF |
摘要 |
<p>A multi-ratio rotorcraft drive system and a method of changing gear ratios thereof are disclosed. According to one embodiment, the multi-ratio rotorcraft drive system comprises a rotor system comprising one or more rotors and one or more engines. Each engine of the one or more engines is coupled to the rotor system through a multi-ratio transmission. The multi-ratio transmission comprises an output shaft coupled to the rotor system, an input shaft coupled to a respective engine of the one or more engines, a high speed clutch integrated into a high speed gear train, and a low speed clutch integrated into a low speed gear train. The high speed clutch and the low speed clutch are freewheeling clutches without a friction plate and are capable of disconnecting the output shaft and the input shaft in an overrunning condition when the output shaft spins faster than the input shaft. The multi-ratio transmission shifts between the high speed gear train and the low speed gear train by engaging or disengaging the high speed clutch and modulating speed of the coupled engine.</p> |
申请公布号 |
CA2767531(A1) |
申请公布日期 |
2011.01.20 |
申请号 |
CA20102767531 |
申请日期 |
2010.07.14 |
申请人 |
BELL HELICOPTER TEXTRON INC. |
发明人 |
EHINGER, RYAN T.;FENNY, CARLOS A.;KILMAIN, CHARLES J.;SINUSAS, ERIC A.;WORRELL, KEVIN |
分类号 |
B64C27/00 |
主分类号 |
B64C27/00 |
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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