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Patent Searching and Data


Title:
CONSTRUCTION MACHINE
Document Type and Number:
WIPO Patent Application WO/2018/194357
Kind Code:
A1
Abstract:
An embodiment of the present invention relates to a construction machine comprising: a swing motor operated by a working fluid supplied from a main pump; a swing valve for controlling the flow of the working fluid pumped by the main pump, so as to supply the working fluid to the swing motor, and controlling the flow of the working fluid discharged from the swing motor; a working fluid control valve unit disposed between the swing motor and the swing valve so as to control the flow of the working fluid depending on the pressures of the working fluid at both ends thereof; a first accumulator for storing the working fluid having passed through the working fluid control valve unit when the swing motor is decelerated; and a regeneration control valve disposed between the working fluid control valve unit and the first accumulator.

Inventors:
KANG, Byung Il (201-802, 24 Songdomunhwa-ro 84beon-gil,Yeonsu-gu, Incheon, 21986, KR)
Application Number:
KR2018/004474
Publication Date:
October 25, 2018
Filing Date:
April 18, 2018
Export Citation:
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Assignee:
DOOSAN INFRACORE CO., LTD. (489Injung-ro, Dong-gu, Incheon, 22502, KR)
International Classes:
E02F9/12; E02F9/22; F15B1/02
Foreign References:
KR20150077431A2015-07-07
JP2007191283A2007-08-02
KR19980022862U1998-07-25
KR20160015630A2016-02-15
KR0157275B11998-11-16
Attorney, Agent or Firm:
YOON, Yu Kwang et al. (We The People IP & Law, 6th Fl Chinyang Bldg., 47, Kyonggidae-ro,,Seodaemun-gu, Seoul, 03752, KR)
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