Title:
HYDRAULIC SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/014082
Kind Code:
A1
Abstract:
A hydraulic system (1) according to one embodiment includes: a first two-way pump (2) that is connected to a head-side chamber (4h) of a single rod cylinder (4) by a head-side line (21) and to a rod-side chamber (4r) of the single rod cylinder (4) by a rod-side line (22); and a variable-capacity second two-way pump (3) that is connected to the head-side line (21) by a feed/drain line (31). The hydraulic system (1) also includes a low-pressure selection valve (6) that is connected to the head-side line (21) by a first drain line (61) and to the rod-side line (22) by a second drain line (62) and allows the second drain line (62) or the first drain line (61) to communicate with a relief line (66) that has a relief valve (66) provided thereto.
Inventors:
YAMAMOTO RYO
TANAKA HIDEKI
MITSUI HIROAKI
TANAKA HIDEKI
MITSUI HIROAKI
Application Number:
PCT/JP2023/015569
Publication Date:
January 18, 2024
Filing Date:
April 19, 2023
Export Citation:
Assignee:
KAWASAKI HEAVY IND LTD (JP)
International Classes:
F15B11/08; F15B11/02
Foreign References:
| JP2002021807A | 2002-01-23 |
Attorney, Agent or Firm:
ARCO PATENT & TRADEMARK ATTORNEYS (JP)
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