G - Physics – 05 – D
Patent
G - Physics
05
D
138/57
G05D 11/02 (2006.01) B62D 5/09 (2006.01) B62D 5/32 (2006.01)
Patent
CA 1132439
Variable Flow Control Valve for Steering Systems of Articulated Vehicles Abstract The steering system comprises at least one double-acting fluid cylinder, a directional control valve connected to the cylinder for alternately ex- tending and retracting the cylinder and a hand metering unit for communicating a fluid steering signal to the directional control valve whereby an engine-driven pump is adapted to communicate pressurized fluid to the cylinder for steering purposes. A variable flow control valve is interconnected between the pump and the hand metering unit for communicating a variable fluid flow to the hand metering unit in proportion to the speed of the pump to vary the fluid steering signal whereby an operator can sense the speed of the pump. In the pre- ferred embodiment of this invention, the variable flow control valve comprises a pair of spring-biased, recip- rocal members which sense a differential pressure across the valve to control fluid flow through an outlet which is adapted to be connected to the hand metering unit.
321091
Caterpillar Tractor Co.
Smart & Biggar
LandOfFree
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