Title:
CONSTRUCTION MACHINE AND OPERATION METHOD
Document Type and Number:
WIPO Patent Application WO/2022/270936
Kind Code:
A1
Abstract:
The present disclosure relates to a construction machine using battery and hydraulic power, the construction machine comprising: an electronic power unit including a battery and an electric motor; a hydraulic pump driven by the electronic power unit and discharging a working fluid; a hydraulic line through which the working fluid discharged from the hydraulic pump moves; a main control valve installed on the hydraulic line to control a supply of the working fluid to at least one of a traveling device or various working devices, which require the working fluid; a bypass cut valve installed on the hydraulic line downstream of the main control valve to open and close the hydraulic line; and a controller for performing a warming-up mode operation for increasing the output of the electronic power unit and opening the bypass cut valve.
Inventors:
NA JONG MIN (KR)
Application Number:
PCT/KR2022/008924
Publication Date:
December 29, 2022
Filing Date:
June 23, 2022
Export Citation:
Assignee:
HYUNDAI DOOSAN INFRACORE CO LTD (KR)
International Classes:
E02F9/20; E02F9/22
Foreign References:
| KR101418633B1 | 2014-07-15 | |||
| KR20180072333A | 2018-06-29 | |||
| KR102221165B1 | 2021-02-26 | |||
| JP2000092614A | 2000-03-31 | |||
| JP2004350443A | 2004-12-09 |
Attorney, Agent or Firm:
HONESTY & JR PARTNERS INTELLECTUAL PROPERTY LAW GROUP (KR)
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