Title:
The electric hydraulic actuator system for Leg lifting
Document Type and Number:
Japanese Patent JP6283195
Kind Code:
B2
Abstract:
An electro hydrostatic actuator system for retracting/extending a landing gear includes a plurality of hydraulic actuators and a plurality of hydraulic supply sources each including a single hydraulic pump and a single electric motor and provided in parallel to each other. In a normal state, the hydraulic supply sources together supply operation oil sequentially to the hydraulic actuators. When any of the hydraulic supply sources is failed, the other hydraulic supply source(s) other than the failed hydraulic supply source supplies operation oil sequentially to the hydraulic actuators.
Inventors:
Taku Kondo
Shogo Hagiwara
Shogo Hagiwara
Application Number:
JP2013218649A
Publication Date:
February 21, 2018
Filing Date:
October 21, 2013
Export Citation:
Assignee:
Sumitomo Precision Products Co., Ltd.
International Classes:
F15B11/17; B64C25/22; B64C25/26; F15B20/00
Domestic Patent References:
| JP2002139003A |
Foreign References:
| US20050194495 | ||||
| GB757705A |
Attorney, Agent or Firm:
Maeda patent office