Inching control system for industrial lift trucks

Details Inching control system for industrial lift trucks Inching control system for industrial lift trucks

B - Operations, Transporting

66

F

138/47

B66F 9/06 (2006.01) B66F 9/075 (2006.01)

Patent

CA 1058481

APPLICATION OF: VICTOR L. CHUN AND WILLIAM J. KUBOLIS FOR: INCHING CONTROL SYSTEM FOR INDUSTRIAL LIFT TRUCKS A B S T R A C T A system for effecting the gradual engagement and disengage- ment of the clutches of a fluid power shifted transmission for industrial lift trucks. The system includes a selector valve for porting fluid from an engine driven pump to the clutches of the transmission and from the clutches to a system reservoir; the selector valve includes damping means for limiting the rate of change in flow through the valve. The system further includes a control valve which operates to limit the pump outlet pressure at engine speeds above a predetermined maximum and to decrease the pump outlet pressure and therefore the clutch actuation force in response to increases in the force applied by the truck brakes.

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