Caterpillar Inc.

Caterpillar Sarl

Steven Burnett

Peter F Prillinger

David A Young

John P Moyna

Alan D Young

A material eject system includes an ejector mounted to a bed of a vehicle which is movable between a rear end and a forward end of the bed for ejecting material from the bed. The ejector is powered by a cylinder having different fluid volumes depending on the direction of motion of the cylinder. A control circuit operates with the ejector motor to automatically move the ejector through eject and return cycles. Further, the control circuit detects different positions of the cylinder and automatically operates the cylinder at different speeds to maintain a constant motor and ejector speed throughout the material eject cycle.

Modulation of ejector pumps to provide uniform and controllable ejector speed during ejector stroke for articulated trucks and the like having ejector type dump mechanism

A material eject system includes an ejector mounted to a bed of a vehicle which is movable between a rear end and a forward end of the bed for ejecting material from the bed. The ejector is powered by a cylinder having different fluid volumes depending on the direction of motion of the cylinder. A control circuit operates with the ejector motor to automatically move the ejector through eject and return cycles. The ejector includes a speed control for operating the motor and the ejector at different speeds.

Dial-in ejector speed control for articulated trucks and the like having

A material eject system includes an ejector mounted to a bed of a vehicle which is movable between a rear end and a forward end of the bed for ejecting material from the bed. The ejector is powered by a cylinder having different fluid volumes depending on the direction of motion of the cylinder. A control circuit operates with the ejector motor to automatically move the ejector through eject and return cycles. The control circuit further provides a short repetitive retract and eject cycle at the end of the eject cycle to break loose any material that may be sticking the ejector.

Hydraulic circuit for an ejector type dump mechanism for articulated

A retarder system for a vehicular drive train is disclosed. The retarder system includes a compression brake being adapted to operate in multiple stages to slow the speed of the engine and a fluid retarder being adapted to operate in multiple stages to absorb power from the drive train. A controller regulates the operational stages of the compression brake and the fluid retarder so that the compression brake and the fluid retarder operate in combination to slow the speed of the vehicle.

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Durham, United Kingdom

Steven Burnett