Robb A Jones

US Patent:

20110283693, Nov 24, 2011

Filed:

May 21, 2010

Appl. No.:

12/784725

Inventors:

Matthew J. Ramler - Luxemburg IA, US
Robb A. Jones - Dubuque IA, US

International Classification:

F15B 21/14

US Classification:

60461

Abstract:

An articulated dump truck is provided with an electro-hydraulic bin control system including a proportional control valve for the bin lift cylinders and including a solenoid-operated regenerative valve assembly mounted adjacent the lift cylinders and being actuated, during lifting the bin for dumping a load of material from the bin, to cause a regenerative flow to occur when the force required by the bin lift cylinders to continue lifting the bin falls to a predetermined force. The force required for tilting the bin is continuously calculated by an electronic control unit taking into account a sensed bin load, a sensed bin tip amount and a sensed side-to-side inclination of the bin. In a simplified second embodiment, the proportional control valve controls the regenerative flow