Hydraulic control system with prefilled pressurized reservoir

Details Hydraulic control system with prefilled pressurized reservoir Hydraulic control system with prefilled pressurized reservoir

1989-07-24

1991-06-04

Kwon, John T.

Power plants

Pressure fluid source and motor

Pulsator

60592, B60T 1126, F15B 708

Patent

active

050203266

ABSTRACT:
A reservoir construction for use with a hydraulic clutch actuator for a motor vehicle. The reservoir includes a blow molded bellows portion including a plurality of pleats or convolutions and is arranged to be moved to a stressed expanded condition in response to filling of the system so that the reservoir serves not only as a source of hydraulic fluid for the system but also serves to pressurize the system by virtue of its stressed condition. The reservoir may comprise a two-part assembly including a main body member and a lid closing the upper end of the main body member, in which case the system is filled through the upper end of the main body member, the lid is secured to the upper end of the main body member, and the output member of the associated slave cylinder is retracted to pressurize the system. Alternatively, the reservoir may comprise a single unitary member with a sealed upper end and the system may be filled and pressurized through a quick connect coupler secured to the free end of a conduit connected to the discharge end of the master cylinder assembly.

REFERENCES:
patent: Re32814 (1989-01-01), Leigh-Monstevens
patent: 3201111 (1965-08-01), Afton
patent: 3216198 (1965-11-01), Brooks
patent: 3233411 (1966-02-01), Schubert
patent: 4407125 (1978-06-01), Parsons
patent: 4503678 (1985-03-01), Wimbush
patent: 4590765 (1984-07-01), Leigh-Monstevens
patent: 4599860 (1986-07-01), Parsons
patent: 4607670 (1986-08-01), Compton et al.
patent: 4756159 (1988-07-01), Compton et al.
patent: 4959960 (1990-10-01), La Fountain

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