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Patent Searching and Data


Title:
DEVICE FOR CONTROLLING REGENERATED FLOW RATE FOR CONSTRUCTION MACHINE AND METHOD FOR CONTROLLING SAME
Document Type and Number:
WIPO Patent Application WO/2015/111775
Kind Code:
A1
Abstract:
Disclosed are a device for controlling a regenerated flow rate for a construction machine and a method for controlling the same, the device being able to supply a large chamber of an arm cylinder with a part of operating oil, which is discharged from the arm cylinder to an operating oil tank during arm-in driving, and regenerating the same. The present invention provides a device for controlling a regenerated flow rate for a construction machine, the device being characterized by comprising: a variable capacity-type hydraulic pump and a pilot pump; an arm cylinder driven by operating oil supplied from the hydraulic pump; a variable arm regeneration valve installed in a passage between the arm cylinder and the operating oil tank; and an electronic proportional valve installed in a passage between the pilot pump and the arm regeneration valve.

Inventors:
JUNG TAE-RANG (KR)
LEE CHUN-HAN (KR)
Application Number:
PCT/KR2014/000741
Publication Date:
July 30, 2015
Filing Date:
January 27, 2014
Export Citation:
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Assignee:
VOLVO CONSTR EQUIP AB (SE)
JUNG TAE-RANG (KR)
LEE CHUN-HAN (KR)
International Classes:
G05D7/06; E02F9/20; F15B11/00
Foreign References:
KR20120123069A2012-11-07
JP2011196439A2011-10-06
KR20130055302A2013-05-28
US20130325268A12013-12-05
JP2011256814A2011-12-22
Other References:
See also references of EP 3101506A4
None
Attorney, Agent or Firm:
YOON, Eui-Seoup (KR)
윤의섭 (KR)
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