Electro-hydraulic actuator with mechanical memory

Details Electro-hydraulic actuator with mechanical memory Electro-hydraulic actuator with mechanical memory

F - Mech Eng,Light,Heat,Weapons

15

B

341/103

F15B 9/03 (2006.01) F15B 13/10 (2006.01) F15B 20/00 (2006.01)

Patent

CA 2034609

ABSTRACT ELECTRO-HYDRAULIC ACTUATOR WITH MECHANICAL MEMORY The reproducing system 9, 10, 42, 43 controls rotation of the rotor 30 of the electric motor 28 in order to provoke a variation in the leakage of the leakage relay 33 with a view to varying the posi- tion of the piston 2 of the jack 1. The stator 34 of the motor 28 is connected by a mechanical link 36 to the piston rod 2a of the jack 1. In the event of no-voltage, the brake 29 of the motor acts in order to connect the rotor 30 and the stator 34. The position of the rod 2a may then be varied by mechanically rotating the rotor-stator assembly 30-34 by a crank 41.

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