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Patent Searching and Data


Title:
SYSTEM FOR REDUCING FUEL CONSUMPTION IN EXCAVATOR
Document Type and Number:
WIPO Patent Application WO/2013/100457
Kind Code:
A1
Abstract:
The present invention relates to a system for reducing fuel consumption in an excavator, comprising: first and second hydraulic pumps which are driven by the power of an engine and respectively discharge first and second hydraulic oils; a first bypass line which guides the first hydraulic oil to a drain line via a driving control unit and a first control unit group; a second bypass line which guides the second hydraulic oil to the drain line via a second control unit group; a switch unit which is configured to select an operation mode and/or driving mode; and a merge control unit which selectively connects the first bypass line and the second bypass line so as to supply the second hydraulic oil of the second bypass line to the upstream side of the driving control unit, wherein the first bypass line and the second bypass line are connected to each other by the merge control unit if the driving mode is selected such that the first hydraulic oil and the second hydraulic oil are merged and then supplied to the driving control unit.

Inventors:
SOHN WON SUN (KR)
YEO MYEONGKU (KR)
KIM KYUNGTAE (KR)
Application Number:
KR2012/010975
Publication Date:
July 04, 2013
Filing Date:
December 18, 2012
Export Citation:
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Assignee:
DOOSAN INFRACORE CO LTD (KR)
International Classes:
F15B13/02; E02F9/22; F15B21/08
Foreign References:
KR20060096081A2006-09-05
KR20050100116A2005-10-18
KR19990086116A1999-12-15
KR20110074388A2011-06-30
JP2005068845A2005-03-17
Other References:
See also references of EP 2799723A4
None
Attorney, Agent or Firm:
HANBEOT PATENT LAW FIRM (KR)
특허법인 한벗 (KR)
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Claims: