Feedback mechanism for variable displacement hydraulic device ha

Details Feedback mechanism for variable displacement hydraulic device ha Feedback mechanism for variable displacement hydraulic device ha

1981-04-27

1984-09-04

Freeh, William L.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

417222, F15B 910, F01B 1302

Patent

active

RE0316571

ABSTRACT:
Mechanical feedback through an articulated mechanism is provided between the swashplate of a variable displacement hydraulic device and the output stage of an electrohydraulic servovalve for controlling such swashplate.

REFERENCES:
patent: 2945449 (1960-07-01), Le Febvre
patent: 3125002 (1964-03-01), McCombs
patent: 3213712 (1965-10-01), Swift
patent: 3406608 (1968-10-01), Diedrich
patent: 3429225 (1969-02-01), Keyworth
patent: 3463087 (1969-08-01), Grant
patent: 3733963 (1973-05-01), Kubilos
patent: 3750532 (1973-08-01), Kubilos
patent: 3788775 (1974-01-01), Zeutner
patent: 3803987 (1974-04-01), Knapp
patent: 3868889 (1975-03-01), Bobier
patent: 3911792 (1975-10-01), Heyl
patent: 4229144 (1980-10-01), Kass

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