Control valve for hydraulic booster

Details Control valve for hydraulic booster Control valve for hydraulic booster

1976-09-20

1978-03-14

Nilson, Robert G.

Fluid handling

Systems

Sequentially closing and opening alternately seating flow...

60494, 91450, 13759613, B60T 1318

Patent

active

040785815

ABSTRACT:
The invention relates to a control valve of a hydraulic booster having an inlet orifice adapted to be connected to a hydraulic pump, an outlet orifice adapted to be connected to an open-center valve, a working orifice connected to the booster pressure chamber and an exhaust orifice connected to the reservoir. The control valve comprises mainly a first and a second valve members respectively controlling fluid connection between the working and the exhaust orifices. The first valve member is secured to a cylinder which partly covers the outlet orifice when this valve member is unseated.

REFERENCES:
patent: 2980066 (1961-04-01), Stelzer et al.
patent: 3633462 (1972-01-01), Goscenski
patent: 3701305 (1972-10-01), Lewis et al.
patent: 3733968 (1973-05-01), Bach

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