Meterless hydraulic system having flow sharing and combining functionality

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8978373
APP PUB NO 20130098016A1
SERIAL NO

13278924

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A hydraulic system includes a variable-displacement first pump, a variable-displacement second pump, and a first actuator selectively connected either to the first pump in a closed loop manner and not the second pump, or to the first and second pumps in a closed loop manner. The hydraulic system also includes a second actuator selectively connected either to the second pump in a closed loop manner and not the first pump, or to the first and second pumps in a closed loop manner. The hydraulic system further includes a variable-displacement rotary actuator selectively connected either to the first pump in a closed loop manner and not the second pump, or to the first and second pumps in a closed loop manner.

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Patent Owner(s)

  • CATERPILLAR INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hillman, Bryan J Peoria, US 13 68
Opdenbosch, Patrick Peoria, US 23 236
Tognetti, Lawrence J Peoria, US 11 73

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