发明名称 |
Damper means for helicopter rotors |
摘要 |
A helicopter rotor includes a rotor head having, for each of a plurality of rotor blades, an elastomeric bearing and a damper that is arranged to provide controlled restraint of rotor blade movement in both the flap and lead/lag planes. The damper can be arranged to exhibit either substantially equal stiffness in both operational planes or any desired stiffness ratio. In a preferred embodiment of the latter arrangement, the desired stiffness in the respective planes are provided by separate components incorporated in the single damper. The damper may be situated either inboard or outboard of the elastomeric bearing.
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申请公布号 |
US4249862(A) |
申请公布日期 |
1981.02.10 |
申请号 |
US19770857603 |
申请日期 |
1977.12.05 |
申请人 |
WESTLAND AIRCRAFT LTD |
发明人 |
MARTIN, ALFRED C;WADDINGTON, ALAN |
分类号 |
B64C27/35;B64C27/51;(IPC1-7):B64C27/38 |
主分类号 |
B64C27/35 |
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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