Caterpillar Inc.

Mark D Fabry

Michael G Cronin

Alan Dale Gustafson

Randall Rey Bendtsen

Robert Urban Murray

Peter A Brown

Jens M Erp

Thad T Litkenhus

Samuel R Freesmeyer

Cary J Lyons

A hydromechanical transmission having an input member, a hydrostatic transmission, and a mechanical transmission. The mechanical transmission includes first and second synchronizing assemblies for synchronizing at least one of a first or second output member with a combined output speed from the input member and the hydrostatic transmission. First and second clutch assemblies alternately engage to transfer power from the synchronized output member to a final drive.

Hydromechanical transmission

Multi-range hydromechanical transmission

An exemplary power management system may include a power source configured to receive a fuel supply and a transmission driveably engaged with the power source. A control system communicates with the power source and the transmission and is configured to determine a fuel supply limit associated with a desired speed of the power source. The fuel supply limit may be determined from a fuel curve associated with the machine. The control system is operative to modify at least a portion of the fuel curve based on a load condition of the power source.

Power management system

A power train assembly includes an input member drivingly engaged by a power source, at least one output member and at least one gear assembly. The output member is driveably connected to the input member through the gear assembly. A brake assembly is engaged with the output member and a casing is configured to enclose the gear assembly and the brake assembly. The casing includes a main chamber in communication with at least one storage chamber and a reservoir. The storage chamber is adapted to receive a flow of lubrication fluid from the reservoir.

Power train assembly

A brake apparatus includes a brake disk secured to a shaft and a reaction plate secured to a housing. The brake apparatus further includes a fluid actuated piston which urges the brake disk against the reaction plate to slow rotation of the shaft and an adjustment member positioned by the piston. The brake apparatus yet further includes a spring interposed between the adjustment member and the piston. The piston positions the adjustment member relative to the brake disk when fluid is applied to said piston. The spring urges the piston away from the adjustment member and brake disk when fluid pressure is removed from the piston.

Self-adjusting braking apparatus

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Morton, IL, United States of America

Mark D Fabry