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Title:
ENERGY REGENERATION DEVICE FOR CONSTRUCTION MACHINE
Document Type and Number:
WIPO Patent Application WO/2015/019594
Kind Code:
A1
Abstract:
An energy regeneration device (11) for construction machines, provided in a construction machine (15) and comprising a movable weight (16) movable in the vertical direction and a hydraulic circuit for force transmission. The hydraulic circuit for force transmission: causes the movable weight (16) to move upwards by using energy from when a boom (12), an arm, or a bucket moves in the direction of gravity or by using energy from when a rotating body (13) or a traveling body (14) brakes; and uses the potential energy of this movable weight as energy for driving the boom (12) or the arm.

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Inventors:
KONDO AKIHIRO
FUJIYAMA KAZUTO
Application Number:
PCT/JP2014/004063
Publication Date:
February 12, 2015
Filing Date:
August 04, 2014
Export Citation:
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Assignee:
KAWASAKI HEAVY IND LTD (JP)
International Classes:
E02F9/22; E02F9/18; F15B21/14
Foreign References:
JP2012026245A2012-02-09
JPS5349206U1978-04-26
JPH08501846A1996-02-27
Attorney, Agent or Firm:
PATENT CORPORATE BODY ARCO PATENT OFFICE (JP)
Patent business corporation Owner old patent firm (JP)
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