Hydraulic drive system with energy recuperation

A drive system and hydraulic technology, which is applied to fluid pressure actuation system components, fluid pressure actuation devices, motor vehicles, etc., can solve the problems of complicated startup, inability to achieve energy storage and release efficiency, etc., and achieve high output power, Optimized energy consumption and increased flexibility
CN101398017AActive Publication Date: 2009-04-01LIEBHERR WERK NENZING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
LIEBHERR WERK NENZING
Publication Date
2009-04-01

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Abstract

The present invention relates to a hydraulic drive system for driving an apparatus, with a drive unit, a first and a second hydraulic displacement machine, with which the drive unit is connectable or connected for transmitting mechanical energy, and a third and a fourth hydraulic displacement machine, which are connectable o r connected with the apparatus for transmitting mechanical energy, wherein the first hydraulic displacement machine is hydraulically connected or connectable wit h the third hydraulic displacement machine, and wherein a high-pressure accumulator is provided, which is hydraulically connected or connectable with the second and the fourth hydraulic displacement machine.
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Description

technical field

[0001] The present invention relates to a hydraulic drive system for driving equipment, the hydraulic drive system having a drive unit capable of driving said hydraulic machine via a main hydraulic circuit comprising a first positive displacement hydraulic machine and a second positive displacement hydraulic machine equipment; a third positive displacement hydraulic machine connectable or connectable to said device to transfer mechanical energy; and a high pressure accumulator hydraulically connected or connectable to the third positive displacement hydraulic machine hydraulic machine. In particular, the present invention relates to a hydraulic drive system for use in cranes, especially for driving winches. In addition, the invention relates to a hydraulic drive system for use in mobile equipment, in particular in reach cranes or wheel loaders, in particular as a travel drive. Background technique

[0002] In order to provide the hydraulic energy used to dr...

Claims

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