Valve device for a hydraulic circuit

Details Valve device for a hydraulic circuit Valve device for a hydraulic circuit

1983-02-22

1985-08-06

Garrett, Robert E.

Power plants

Pressure fluid source and motor

Pulsator

60592, 1375195, 13753311, F15B 708, F16K 2502

Patent

active

045327688

ABSTRACT:
A hydraulic valve device for a hydraulic circuit controlling clutches, brakes and similar mechanisms comprises a non-return valve provided between a tank and a chamber. The non-return valve incorporates a ball accommodated in a cylindrical cavity and interacting with a leak-proof seat located on the same side as the tank, and a permeable seat located on the same side as the chamber. This arrangement eliminates the risk of the hydraulic liquid in the tank overloading the circuit during abrupt depressurization of the circuit.

REFERENCES:
patent: 1550756 (1925-08-01), Sturtevant
patent: 2283695 (1942-05-01), Pratt et al.
patent: 2882686 (1959-04-01), Griffith
patent: 3106226 (1963-10-01), Machen
patent: 3596564 (1971-08-01), Johnson
patent: 3841349 (1974-10-01), Todd
patent: 4208881 (1980-06-01), Brademeyer et al.
patent: 4329846 (1982-05-01), Gaiser
patent: 4445334 (1984-05-01), Derrick

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