Power plants – Pressure fluid source and motor – Pulsator
Patent
1988-12-12
1991-10-01
Look, Edward K.
Power plants
Pressure fluid source and motor
Pulsator
60562, 60563, 60582, 60585, 303114, 303116, B60T 1312, B60T 1368
Patent
active
050521829
ABSTRACT:
A tandem master brake cylinder has first and second pistons, each piston associated with a fluid chamber and a pressure chamber. The pistons are displaced in response to actuation of a brake pedal. A hydraulic booster is coupled to a power source and is operable to enhance the piston movement and for conducting pressurized fluid to a second of the fluid chambers associated with a second piston to displace that piston in a manner reducing the volume of the pressure chamber associated with the first piston. In the event that a negative pressure is communicated with the second fluid chamber, e.g. by a loss of pressurized fluid from the power source, brake fluid is supplied through a one-way check valve to the second fluid chamber to prevent the negative pressure from reversing the motion of the second piston.
REFERENCES:
patent: 4534171 (1985-08-01), Leiber
patent: 4641895 (1987-02-01), Belart et al.
patent: 4728156 (1988-03-01), Burgdorf et al.
patent: 4745750 (1988-05-01), Belart et al.
patent: 4749240 (1988-06-01), Burgdorf
patent: 4761042 (1988-08-01), Seibert et al.
patent: 4772075 (1988-09-01), Wupper et al.
patent: 4852352 (1989-08-01), Leigh-Monstevens
Kato Masahiko
Mizuno Genji
Nishii Michiharu
Nomura Yoshihisa
Shirai Kenji
Aisin Seiki Kabushiki Kaisha
Kapsalas George
Look Edward K.
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