Hydraulic booster system with accumulator

Details Hydraulic booster system with accumulator Hydraulic booster system with accumulator

1988-11-22

1990-12-11

Look, Edward K.

Power plants

Pressure fluid source and motor

With control means for structure storing work driving energy

605471, 60550, 91372, 91373, B60T 1314, B60T 1312

Patent

active

049761056

ABSTRACT:
A hydraulic booster for a master cylinder in which an inlet valve is interposed between an output pressure chamber at the back of the booster piston and an input pressure chamber connected to a pressure source. Advance of the valve piston opens the inlet valve. An outlet valve between the output chamber and an outlet chamber connected to an oil tank closes at advance of the valve piston relative to the booster piston. The booster chamber is exposed to a rear of a master cylinder operation piston. The valve piston oil feed passage connects input pressure chamber with booster chamber at opening of the outlet valve. The reaction chamber at the front surface of the booster piston is reduced in volume with the advancing movement and is connected to an accumulator making it possible to smooth initial operation of the master cylinder and reduce booster system size.

REFERENCES:
patent: 3170536 (1965-02-01), Van House et al.
patent: 3889467 (1975-06-01), Huffman et al.
patent: 3898808 (1975-08-01), Ewald et al.
patent: 4660381 (1987-04-01), Kuromitu
patent: 4835967 (1989-06-01), Nomura
patent: 4875665 (1989-06-01), Kato et al.

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