Power plants – Pressure fluid source and motor – Pulsator
Patent
1998-01-06
2000-04-11
Nguyen, Hoang
Power plants
Pressure fluid source and motor
Pulsator
60594, 60545, 92136, F15B 700
Patent
active
060475463
ABSTRACT:
For an automatic hydraulic pressure generator in which a hydraulic master cylinder driven by a computer-controlled motor lets in or takes out a friction clutch, an operation device is provided that can make the piston rod of the hydraulic master cylinder operate at high torque and at high speed and further that is advantageous in durability of its conversion mechanism from rotary motion to linear motion. The operation device for operating a hydraulic master cylinder by motor drive comprises a slider driven by a motor to rotate around a stationary shaft through an actuator gear train for speed reduction; a female screw formed on an inner circumference of the slider; a male screw provided on an outer circumference of the stationary shaft and meshing with the female screw; a sleeve fixed to a piston rod of the hydraulic master cylinder and being slidable along the stationary shaft in the axial direction; and a slider bearing for coupling the sleeve with the slider so that the sleeve may be rotatable relatively to and movable integrally with the slider in the axial direction.
REFERENCES:
patent: 3956896 (1976-05-01), Bailey
patent: 4356736 (1982-11-01), Riedl
patent: 4653815 (1987-03-01), Agarwal et al.
patent: 4872359 (1989-10-01), Schulz et al.
Aichi Kikai Kogyo Kabushiki Kaisha
Nguyen Hoang
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