Power plants – Pressure fluid source and motor – Pulsator
Patent
1987-10-22
1990-04-24
Garrett, Robert E.
Power plants
Pressure fluid source and motor
Pulsator
60582, 74388R, 310 83, B60T 1374
Patent
active
049189212
ABSTRACT:
An electrically driven master cylinder assembly and various vehicle control systems utilizing the master cylinder assembly. Several forms of master cylinder assemblies are disclosed. In the preferred form, the assembly includes an electric DC motor directly coupled to a master cylinder unit with the central axis of the motor coaxial with the central axis of the bore of the master cylinder, a ball nut is positioned within the housing of the electric motor for rotation with the armature of the motor, and a ball screw is positioned on the axis of the motor and is driven linearly in response to rotation of the armature. The free end of the ball screw engages the piston of the master cylinder so that energization of the motor operates to move the piston of the hydraulic cylinder linearly within the bore of the hydraulic cylinder to discharge fluid from the outlet of the hydraulic cylinder for delivery to a slave cylinder to perform an appropriate vehicle control function such as engagement or disengagement of the vehicle clutch or actuation of the vehicle braking system.
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Popular Science, Mar. 1988 issue, pp. 64-65.
Le Distributeur Automobile, Nov. 1987, p. 105.
Leigh-Monstevens Keith V.
Mabee Brian D.
Automotive Products plc
Garrett Robert E.
Kapsalas George
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