Case Corporation

Darrel J Svendsen

John M Zeni

Kenneth A Moehle

Patrick M Lourigan

William L Ostler

Hermann H Regep

Ted W Gregory

Kenneth Daniels

William L Christopher

A fuel system for a work vehicle such as a tractor includes a pair of fuel tanks located on either side of the vehicle that are connected by a cross feed fuel line. The fuel line permits fuel to flow from both tanks to a common fuel suction line, which, in turn, feeds the vehicle's engine with fuel. The fuel line includes a check valve that prevents the free flow of fluid through the cross feed line when the vehicle is driven across a slope. The check valve is disposed to prevent liquid fuel from flowing away from a fuel suction line and starving the suction line for fuel.

Flapper valve system

Work vehicle fuel tank

Work vehicle body

Work vehicle ballast

A control lever assembly for generating an electrical signal representative of the position of a linearly-moveable control lever which extends through an elongated passage in a console cover includes a control lever guide rotatably mounted to a bracket beneath the console cover. An arm projecting above the console cover is provided for moving the guide between rotational positions. The guide has an opening with slots of predetermined length associated with the rotational positions which define ranges of linear movement of the control lever. The movement of the control lever causes a sensing circuit to generate the electrical signal representative of the position of the control lever. The assembly also includes a switch actuated by a cam on an end of the guide depending upon the rotational position of the guide. The assembly also includes detent mechanisms for releasably retaining the control lever and the guide in various detent positions.

Control lever assembly

Work vehicle cab

An auxiliary hydraulic system for a working vehicle having an operator station is disclosed herein. The system includes a hydraulic pump for providing hydraulic fluid under pressure, auxiliary hydraulic fittings for connection to auxiliary attachments, and electrically-actuated auxiliary valve assemblies for controlling the supply of hydraulic fluid from the pump to the fittings in response to control signals. The system also includes an operator control console mounted at the operator station and including control levers moveable between different flow positions, flow limit input devices for setting flow limits for the control levers, and a console control circuit for generating command signals based upon the positions of the control levers and the flow limits. The command signals are transmitted to an auxiliary control circuit which generates the control signals in response thereto and applies the control signals to the auxiliary valve assemblies. Thus, the supply of fluid to the auxiliary valve fittings depends upon the positions of the control levers and the flow limits which are controlled by an operator from an integrated operator control console.

Auxiliary hydraulic control system

Growing community of inventors

Racine, WI, United States of America

Darrel J Svendsen