Power plants – Pressure fluid source and motor – Pulsator
Patent
1980-09-30
1983-02-08
Hershkovitz, Abraham
Power plants
Pressure fluid source and motor
Pulsator
60578, 60588, B60T 1120
Patent
active
043721176
ABSTRACT:
A split-type brake master cylinder for motor vehicles comprises a stepped bore, a stepped primary piston to constitute a first fluid chamber between a large diameter portion and a small diameter portion thereof, a secondary piston to form a primary pressure chamber in cooperation with the primary piston as well as a second fluid chamber in normal fluidic communication with a reservoir, and a compensation port continuously connected to the primary pressure chamber and in the fluidic connection to the second fluid chamber at the brake release condition while in the fluidic isolation therefrom at the brake application. Thus, the compensation port has no direct relationship with the pressure increase in the first fluid chamber thereby to assure the stable output pressure of the master cylinder regardless of the depression speed of brake pedal.
REFERENCES:
patent: 3169372 (1965-02-01), Rike
patent: 3199299 (1965-08-01), Moyer
patent: 4086770 (1978-05-01), Shaw
patent: 4128249 (1978-12-01), Mantini
patent: 4133178 (1979-01-01), Brooks
patent: 4170386 (1979-10-01), Shutt
patent: 4208881 (1980-06-01), Brademeyer
Aisin Seiki Kabushiki Kaisha
Hershkovitz Abraham
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