Variable flow rate control with mechanical override for closed c

Details Variable flow rate control with mechanical override for closed c Variable flow rate control with mechanical override for closed c

1979-01-22

1980-07-22

Geoghegan, Edgar W.

Power plants

Pressure fluid source and motor

Having condition responsive control in a system of distinct...

60422, 60445, 60494, 91516, F15B 1120

Patent

active

042133009

ABSTRACT:
An agricultural tractor is provided with a hitch and draft control system hydraulically related to a plurality of other hydraulic functions. The hydraulic fluid distribution is preferenced by a priority valve including a variable orifice in series with the hitch and draft control system. The variable orifice acts as a raise rate control device and also as a controlling member for a load sensing variable displacement pump.

REFERENCES:
patent: 2827768 (1958-03-01), Ziskal et al.
patent: 3279172 (1966-10-01), Kudo et al.
patent: 3770007 (1973-11-01), Orth et al.
patent: 3979908 (1976-09-01), Alderson

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