Hydraulic draft control valve

Details Hydraulic draft control valve Hydraulic draft control valve

1981-06-05

1982-09-21

Stouffer, Richard T.

Earth working

Automatic power control

Draft responsive

91387, 91461, A01B 63112

Patent

active

043502091

ABSTRACT:
A hydraulic draft control system for use on a tractor and having a pilot valve regulating flow and pressure for automatically operating a draft control valve. The pilot valve opens and closes in response to draft loads sensed on the tractor to control the opening and closing of the control valve for raising and lowering of an implement on the tractor.

REFERENCES:
patent: 3598020 (1971-08-01), Blok et al.
patent: 3954046 (1976-05-01), Stillhard

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