Drive system for travelling a working vehicle

Details Drive system for travelling a working vehicle Drive system for travelling a working vehicle

F - Mech Eng,Light,Heat,Weapons

16

H

138/41.15

F16H 39/02 (2006.01)

Patent

CA 1166119

ABSTRACT OF THE DISCLOSURE The invention provides a drive arrangement for the sys- tem of a working vehicle having two pumps for driving pressurized- fluid-driven-motors respectively mounted to the right- and left- hand travelling elements, a frame, a swivel base, a rotary joint for connecting the frame and base, a selector valve mechanism to selectively provide a condition where fluids from the pumps are respectively supplied to the right-and left-hand travelling ele- ments or a condition where fluids from the pumps are supplied in a combined flow to the travelling elements, and counter balance valves to act on the motors. The counter balance valves are dis- posed upstream with respect to the selector valve mechanism, while the counter balance valves and selector valve mechanism are locat- ed downstream of the rotary joint.

361599

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