| 发明名称 |
PROPULSION ENGINE |
| 摘要 |
A propulsion engine for an aircraft, the propulsion engine comprising: one or more fans (1, 2) rotatably linked to one or more respective shafts (11); a driving means arranged to drive the one or more fans; and a first hydraulic pump-motor (10) connected to one of the fan shafts, the first hydraulic pump-motor comprising a cam (12) disposed about the shaft and one or more radially extending pistons (13) arranged to engage a surface of the cam, the cam and pistons being arranged such that the pistons reciprocate due to the rotation of the cam, wherein the first hydraulic pump-motor is arranged to selectively transfer a variable amount of power to or from the one or more fans so as to control the rotational speed of the one or more fans. |
| 申请公布号 |
US2014212299(A1) |
申请公布日期 |
2014.07.31 |
| 申请号 |
US201213705707 |
申请日期 |
2012.12.05 |
| 申请人 |
Rolls-Royce PLC |
发明人 |
EDWARDS David Anthony;NICHOLSON Richard |
| 分类号 |
F04D13/02 |
主分类号 |
F04D13/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A propulsion engine for an aircraft, the propulsion engine comprising:
one or more fans rotatably linked to one or more respective shafts; a driving means arranged to drive the one or more fans; and a first hydraulic pump-motor connected to one of the fan shafts, the first hydraulic pump-motor comprising a cam disposed about the shaft and one or more radially extending pistons arranged to engage a surface of the cam, the cam and pistons being arranged such that the pistons reciprocate due to the rotation of the cam, wherein the first hydraulic pump-motor is arranged to selectively transfer a variable amount of power to or from the one or more fans so as to control the rotational speed of the one or more fans. |
| 地址 |
US |
