Title:
HYDRAULIC SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/065510
Kind Code:
A1
Abstract:
This hydraulic system comprises: a single-rod hydraulic cylinder; a variable-capacity pump driven by a rotating electrical machine; a rod-side supply line and head-side supply line that connect the pump with the hydraulic cylinder; a first tank line that branches from the rod-side supply line and leads to a tank; a second tank line that branches from the head-side supply line and leads to the tank; and a flow rate adjustment device configured so as to switch the discharge capacity of the pump to a first set value when the pressure of the head-side supply line is higher than the pressure of the rod-side supply line, and to switch the discharge capacity of the pump to a second set value less than the first set value when the pressure of the rod-side supply line is higher than the pressure of the head-side supply line.
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Inventors:
KONDO AKIHIRO
MITSUI HIROAKI
TOYOTA TOSHIHISA
YAMADA HARUO
MITSUI HIROAKI
TOYOTA TOSHIHISA
YAMADA HARUO
Application Number:
PCT/JP2018/035102
Publication Date:
April 04, 2019
Filing Date:
September 21, 2018
Export Citation:
Assignee:
KAWASAKI HEAVY IND LTD (JP)
International Classes:
F15B11/02; F15B11/08
Foreign References:
| JPH10166199A | 1998-06-23 | |||
| JP2005036870A | 2005-02-10 |
Attorney, Agent or Firm:
PATENT CORPORATE BODY ARCO PATENT OFFICE (JP)
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