Pressure compensating valve

Details Pressure compensating valve Pressure compensating valve

1978-02-13

1980-12-30

Cline, William R.

Fluid handling

Self-proportioning or correlating systems

Self-proportioning flow systems

G05D 1103

Patent

active

042417490

ABSTRACT:
A pressure compensating mixing valve incorporating a flow control spool has an equalizing passage interconnecting opposite end zones of the spool, to reduce or obviate the need for connecting the respective end portions of the spool to pressure fluid supplies, such as the respective valve outputs. This reduces the significance of spool seals, owing to equalization of pressure between certain pressurized zones, so that seal leakage is of lessened adverse significance. Also valve malfunction due to silting-up or liming-up is made less probable.

REFERENCES:
patent: 962111 (1910-06-01), Assmann
patent: 1538427 (1925-05-01), Earl
patent: 2313797 (1943-03-01), Bailey
patent: 2983279 (1961-05-01), Biermann
patent: 3148364 (1964-09-01), Engels et al.
patent: 3403601 (1968-10-01), Eddy
patent: 3456670 (1969-07-01), Bowman
patent: 3606904 (1971-09-01), Taylor
patent: 3687153 (1972-08-01), Gold
patent: 3724480 (1973-04-01), Povalski et al.
patent: 3742970 (1973-07-01), Gross
patent: 4094333 (1978-06-01), Petursson

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