B - Operations – Transporting – 60 – T
Patent
B - Operations, Transporting
60
T
137/82
B60T 15/00 (2006.01) B66D 1/44 (2006.01) F16D 67/04 (2006.01)
Patent
CA 1114266
Control Valve Apparatus for Supplying To A Plurality of Mechanisms Abstract The invention relates to apparatus for supplying pressurized fluid to various controlled members. A problem with prior apparatus is the need for a plurality of separate apparatuses to supply the controlled members. The invention solves this problem through the use of a single valve that controls the supply of pressurized fluid from a fluid source to first, second and third controlled members, in which the single valve has a first relief valve segment to relieve the pressure of fluid flowing from the source to the first controlled member, a second relief valve segment to relieve the pressure of fluid relieved by the first relief valve segment, and a third valve segment to direct the fluid relieved by the first relief valve segment to the second and third controlled members. A movable lever is connected to the third valve segment to shift this valve segment and control the direction of the fluid. The invention is used principally in hydraulic circuits for earthworking vehicles to actuate a plurality of controlled members including a flywheel clutch and clutch brake, and steering clutches and vehicle brakes.
336519
Cobb Raymond P.
Schneider Marvin L.
Caterpillar Tractor Co.
Kirby Eades Gale Baker
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