Hydraulic circuit for synchronous lift of flexible frame impleme

Details Hydraulic circuit for synchronous lift of flexible frame impleme Hydraulic circuit for synchronous lift of flexible frame impleme

1980-06-05

1982-07-13

Pekar, John A.

Land vehicles

Wheeled

Extensible

91518, 137 99, 172401, 172413, A01B 6322

Patent

active

043391397

ABSTRACT:
A hydraulic circuit for synchronous lift of an implement having a center frame and flexibly connected left and right wing frames, each frame having an independent wheel assembly for raising and lowering the associated frame. A rotary flow divider is provided in a parallel connection of hydraulic rams to actuate the wheel assemblies. The flow divider has a section sized to provide the necessary flow to each ram so that all frames are raised and lowered in unison.

REFERENCES:
patent: 3002760 (1961-10-01), Lee
patent: 3481489 (1969-12-01), Stauffer
patent: 3495610 (1970-02-01), Van Aken
patent: 3677009 (1972-07-01), Thatcher

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