发明名称 |
HELICE DE VARIAS PAS DE PASSO VARIAVEL,PA E SEU PROCESSO DE FABRICACAO |
摘要 |
Each blade is fixed to the hub by the root part of the spar, arranged in the form of a loop surrounding a connection element bolted on the hub, with the interposition of rigid rings by a pin simultaneously fixing the hub on a drive sleeve transmitting thereto the driving torque of the central shaft. The hub comprises two coaxial cylindrical walls in each of which is pierced, for each blade, a circular opening in which the member for controlling the angle of attach which is fast with the blade root is mounted to rotate via self-lubricating rings. The invention is particularly applicable to helicopters. |
申请公布号 |
BR8401221(A) |
申请公布日期 |
1984.10.23 |
申请号 |
BR19848401221 |
申请日期 |
1984.03.16 |
申请人 |
SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE |
发明人 |
RENE LOUIS MOUILLE;MARC DECLERQ;JEAN-PIERRE JALAGUIER;BERNARD JAUGEY |
分类号 |
B64C11/22;B29C43/02;B29C43/18;B29C43/20;B29C43/32;B29C43/34;B29C57/00;B29C67/00;B29C70/06;B29D99/00;B29K105/10;B32B3/12;B64C11/26;B64C27/46;B64C27/473;B64C27/82;F01D5/28;(IPC1-7):B64C11/30;B64C11/06 |
主分类号 |
B64C11/22 |
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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