Hydraulic energy handling system, a hydraulic parallel hybrid driveline and a working machine

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11821442
APP PUB NO 20210340998A1
SERIAL NO

17285384

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Importance

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Abstract

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A hydraulic energy handling system for a working machine includes a high-pressure side; a low-pressure side; a hydraulic machine for mechanically driving, and being mechanically driven by, a mechanical driveline of the working machine; at least one high-pressure hydraulic energy storage connected to the high-pressure side; a hydraulic motor; a hydraulic pump arranged to supply hydraulic fluid to an inlet side of the hydraulic motor; and a return line for conducting hydraulic fluid to a hydraulic tank. The system further includes a pressure relief valve between the high-pressure side and the return line and arranged to discharge excess hydraulic energy from the high-pressure side to the return line to provide a braking force on the mechanical driveline; and a priority valve arrangement connected to an outlet side of the hydraulic motor to direct a prioritized flow of hydraulic fluid to the low-pressure side.

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Patent Owner(s)

  • VOLVO CONSTRUCTION EQUIPMENT AB

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Morelius, Robert Eskilstuna, SE 2 2
Norlin, Erik Eskilstuna, SE 1 0
Uebel, Karl Kvicksund, SE 4 0

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