Hydraulic pump control arm and method

Details Hydraulic pump control arm and method Hydraulic pump control arm and method

F - Mech Eng,Light,Heat,Weapons

04

B

F04B 49/00 (2006.01) F16H 61/456 (2010.01) E02F 9/22 (2006.01) F16H 59/58 (2006.01)

Patent

CA 2684247

Adjustable control arms for dual path hydrostatic pumps have first and second arms interconnected by an eccentric mechanism with a common pivot point on a pivotal control input shaft for the pumps. The control arms are adjusted at a minimal pump output such as 500 r.p.m. by varying the eccentric to achieve equal r.p.m. The throw of the pump arms is adjusted at a maximum pump output r.p.m., such as approximately 4000 r.p.m., to achieve uniform tracking, steering, and directional control from the dual path hydrostatic pumps.

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