Power plants – Pressure fluid source and motor – Pulsator
Patent
1981-05-18
1984-09-25
Hershkovitz, Abraham
Power plants
Pressure fluid source and motor
Pulsator
60578, 137522, B60T 1120
Patent
active
044729405
ABSTRACT:
A master cylinder, according to the present invention comprises a primary piston and a secondary piston disposed within a bore of a cylinder housing in tandem relationship. The secondary piston has a sectional area facing to a secondary pressure chamber, which area is smaller than that of the primary piston facing a primary pressure chamber. The hydraulic pressure in the secondary chamber is regulated by a regulator valve means provided opposing thereto. The regulator valve means becomes operative when the hydraulic pressure applied to the secondary pressure chamber exceeds a predetermined value. Due to the difference of the sectional area between the primary piston and the secondary piston which respectively face to the primary and secondary pressure chambers, hydraulic pressure to be applied to the front and rear wheel cylinders is varied to reduce the pressure in the rear wheel cylinder for preventing skidding of the vehicle.
REFERENCES:
patent: 2291056 (1942-07-01), Pallady
patent: 2508403 (1950-05-01), Knauss
patent: 2742054 (1956-04-01), Poundstone
patent: 3143860 (1964-08-01), Stelzer
patent: 3818706 (1974-06-01), Gaiser
patent: 4086770 (1978-05-01), Shaw
patent: 4170386 (1979-10-01), Shutt
Hershkovitz Abraham
Nissan Motor Company Limited
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