Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Serge Grand0
Emmanuel Lesage0
Date of Patent
October 2, 2018
0Patent Application Number
151979750
Date Filed
June 30, 2016
0Patent Citations Received
Patent Primary Examiner
Patent abstract
An electro hydrostatic actuator (EHA) comprises a hydraulic pump and an electric motor driving the hydraulic pump. The hydraulic pump comprises an inlet and an outlet for hydraulic fluid and an active fluid 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 hydraulic pump further comprises a bypass flow path arranged between the pump inlet and outlet, such that, in a damping mode of operation, hydraulic fluid is able to freely flow between the inlet and outlet in either direction.
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