| 发明名称 |
ELECTRO HYDROSTATIC ACTUATORS |
| 摘要 |
An electro hydrostatic actuator comprises a hydraulic pump driven by an electric motor to supply hydraulic fluid to a hydraulic actuator. The pump comprises an inlet and an outlet for the hydraulic fluid and an active flow path arranged therebetween such that, in an active mode of operation when the pump is driven by the electric motor, hydraulic fluid is actively drawn in through the inlet and exhausted out through the outlet. The pump further comprises a bypass flow path arranged to open between the inlet and outlet such that, in a damping mode of operation when the pump is not driven by the electric motor, hydraulic fluid is able to pass through the pump along the bypass flow path between the inlet and outlet. |
| 申请公布号 |
US2017002845(A1) |
申请公布日期 |
2017.01.05 |
| 申请号 |
US201615198001 |
申请日期 |
2016.06.30 |
| 申请人 |
Goodrich Actuation Systems SAS |
发明人 |
Lesage Emmanuel;Grand Serge |
| 分类号 |
F15B21/04;F04C14/26;F15B21/08;F04C15/06;B64C13/40;F15B11/08;F04C9/00;F04C15/00 |
主分类号 |
F15B21/04 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An electro hydrostatic actuator comprising:
an electric motor; and a hydraulic pump driven by the electric motor, the pump configured to supply hydraulic fluid to a hydraulic actuator, the pump comprising:
an inlet and an outlet for the hydraulic fluid and an active flow path arranged therebetween such that, in an active mode of operation when the pump is driven by the electric motor, hydraulic fluid is actively drawn in through the inlet and exhausted out through the outlet; anda bypass flow path arranged to open between the inlet and outlet such that, in a damping mode of operation when the pump is not driven by the electric motor, hydraulic fluid is able to pass through the pump along the bypass flow path between the inlet and outlet. |
| 地址 |
Buc FR |
