Title:
EHA SYSTEM OF AIRCRAFT LANDING GEAR
Document Type and Number:
Japanese Patent JP2018094969
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a ground travel system of an aircraft, which excels in economical efficiency and environmental.SOLUTION: An EHA (Electro Hydrostatic Actuator) system 10 of an aircraft landing gear comprises: a hydraulic motor 41 that is connected to a wheel 15 installed to a strut of an aircraft and is configured to drive the wheel; a hydraulic cylinder 2 configured to store the strut in the airframe of the aircraft and extend the same therefrom; and an electrically-driven hydraulic pump (electric motors 311, 321, hydraulic pumps 312, 322) that is connected to the hydraulic cylinder and is configured to supply hydraulic pressure to the hydraulic cylinder during storing and extending of the strut. The electrically-driven hydraulic pump supplies hydraulic pressure to the hydraulic motor when the aircraft travels on the ground.SELECTED DRAWING: Figure 2
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Inventors:
KONDO TAKU
Application Number:
JP2016238871A
Publication Date:
June 21, 2018
Filing Date:
December 08, 2016
Export Citation:
Assignee:
SUMITOMO PRECISION PROD CO
International Classes:
B64C25/22; B64C25/24; B64C25/36
Domestic Patent References:
| JP2012116467A | 2012-06-21 | |||
| JP2013103698A | 2013-05-30 |
Foreign References:
| US20090076668A1 | 2009-03-19 | |||
| DE102008003307A1 | 2009-07-23 | |||
| CN103661922A | 2014-03-26 | |||
| EP3045736A1 | 2016-07-20 |
Attorney, Agent or Firm:
Maeda patent office