F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
137/84
F15B 11/20 (2006.01) F15B 13/02 (2006.01)
Patent
CA 1131541
VARIABLE FLOW RATE CONTROL WITH MECHANICAL OVERRIDE FOR CLOSED CENTER VALVE ABSTRACT OF THE DISCLOSURE An agricultural tractor is provided with a hitch and draft control system hydraulically related to a plurali- ty of other hydraulic functions. The hydraulic fluid dis- tribution 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.
343363
Case Corporation
Meredith & Finlayson
LandOfFree
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