Title:
HYDRAULIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2024/048813
Kind Code:
A1
Abstract:
A hydraulic machine comprising: an actuator; a high pressure accumulator; a high pressure line that supplies pressure oil to the actuator and to which the high pressure accumulator is connected; a pump that supplies pressure oil to the high pressure line; a drive unit that drives the pump; and a control unit that controls the pump and the drive unit, wherein the control unit performs control such that, when the pressure in the high pressure line is more than or equal to a preset threshold pressure, the rotational speed of the drive unit is maintained at a preset first rotation speed, and when the pressure in the high pressure line is less than the threshold pressure, the rotational speed of the drive unit is made to be a second rotational speed that is greater than the first rotational speed.
Inventors:
BAE SANGKI (KR)
KIM YOUNGHUN (KR)
KIM YOUNGHUN (KR)
Application Number:
PCT/KR2022/013034
Publication Date:
March 07, 2024
Filing Date:
August 31, 2022
Export Citation:
Assignee:
VOLVO CONSTR EQUIP AB (SE)
BAE SANGKI (KR)
KIM YOUNGHUN (KR)
BAE SANGKI (KR)
KIM YOUNGHUN (KR)
International Classes:
F15B11/04; F15B1/04; F15B13/042
Foreign References:
| KR20210151890A | 2021-12-14 | |||
| KR20120080645A | 2012-07-17 | |||
| KR20070086781A | 2007-08-27 | |||
| US20030126981A1 | 2003-07-10 | |||
| US20110142632A1 | 2011-06-16 |
Attorney, Agent or Firm:
KIM, Seon-Min (KR)
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