Power valve for a vehicle braking system

Details Power valve for a vehicle braking system Power valve for a vehicle braking system

1982-10-22

1985-12-24

Richter, Sheldon J.

Power plants

Pressure fluid source and motor

Pulsator

60553, 60562, 60569, 60591, F15B 700, B60T 1504

Patent

active

045597804

ABSTRACT:
A power valve for a vehicle braking system includes a main pressure chamber (4) defined between the body (1) and spool (2) and connected to the outlet (5), the spool being displaceable under an input effort to close communication between the chamber (4) and a reservoir port (8) and open communication of the chamber (4) with an inlet (7), and an auxiliary chamber (10) to which fluid pressure may be supplied through a port (11) to exert a force on the spool for reducing the pressure supplied to the outlet (5) for a given input effort applied to the spool (2).

REFERENCES:
patent: 2442601 (1948-06-01), House et al.
patent: 2458803 (1949-01-01), Stelzer
patent: 3222868 (1965-12-01), Stelzer
patent: 3407947 (1968-10-01), Valla
patent: 3499287 (1970-03-01), Schrader
patent: 3575001 (1971-04-01), Wilson et al.
patent: 3640067 (1972-02-01), Ingram
patent: 3683619 (1972-08-01), Belart
patent: 3922858 (1975-12-01), Sadler
patent: 3972192 (1976-08-01), Muterel
patent: 4077217 (1978-03-01), Leiber
patent: 4294070 (1981-10-01), Farr

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