Title:
CONSTRUCTION MACHINE
Document Type and Number:
WIPO Patent Application WO/2018/217031
Kind Code:
A1
Abstract:
An embodiment of the present invention relates to a construction machine, the construction machine comprising: a main pump; a pivoting motor operated by receiving operating oil from the main pump; a pivoting valve for controlling the flow of the operating oil by the main pump so as to supply the operating oil to the pivoting motor; a discharge pressure detection unit for detecting a pressure of the operating oil discharged from the pivoting motor; an operating oil control valve unit for controlling the flow of the operating oil in accordance with the pressure of the operating oil discharged from the pivoting motor or supplied to the pivoting motor; a first accumulator capable of storing the operating oil that has passed through the operating oil control valve unit; and a flow rate amplifying unit installed between the operating oil control valve unit and the first accumulator, wherein the operating oil discharged from the pivoting motor is stored in the first accumulator through the flow rate amplifying unit.
Inventors:
KANG BYUNG IL (KR)
Application Number:
PCT/KR2018/005895
Publication Date:
November 29, 2018
Filing Date:
May 24, 2018
Export Citation:
Assignee:
DOOSAN INFRACORE CO LTD (KR)
International Classes:
E02F9/22; F15B1/02; F15B13/02
Foreign References:
| US20140060022A1 | 2014-03-06 | |||
| KR20150082297A | 2015-07-15 | |||
| KR20150046335A | 2015-04-29 | |||
| KR20170032417A | 2017-03-22 | |||
| US20080110165A1 | 2008-05-15 |
Attorney, Agent or Firm:
YOON, Yu Kwang et al. (KR)
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