Title:
HYDRAULIC DEVICE AND PRIME MOVER DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/155767
Kind Code:
A1
Abstract:
A hydraulic device (100) is configured so as to prevent the breakage of a single-directional filter section adapted for high-pressure oil. The hydraulic device (100) is provided with an accumulator (106) which supplies oil from an oil tank (102) to both a high-pressure oil passage (L1) and a low-pressure oil passage (L2) through a supply pump (104) and which is capable of accumulating the pressure of the oil supplied to the high-pressure oil passage from the supply pump. The hydraulic device (100) is characterized by comprising: a filter section (120) which is provided aligned in the direction of supply of the oil so as to be located between the supply pump and the connection point (N1) where the high-pressure oil passage is connected to the accumulator; and a check valve (110) which is provided between the filter section and the connection point and which is capable of blocking the back-flow of the oil into the filter section.
Inventors:
HASHIMOTO TETSUYA (JP)
OKUDA YASUHIKO (JP)
OKUDA YASUHIKO (JP)
Application Number:
PCT/JP2013/072863
Publication Date:
October 02, 2014
Filing Date:
August 27, 2013
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
F15B21/041; F15B1/26; F15B20/00
Foreign References:
| JPS50145778A | 1975-11-22 | |||
| JP2012229802A | 2012-11-22 | |||
| JPH03128406U | 1991-12-25 | |||
| JPH10328507A | 1998-12-15 | |||
| JP2004346769A | 2004-12-09 | |||
| JPH1054215A | 1998-02-24 | |||
| JP2004156537A | 2004-06-03 |
Other References:
See also references of EP 2980419A4
Attorney, Agent or Firm:
SEISHIN IP PATENT FIRM, P. C. (JP)
誠真 IP patent business corporation (JP)
誠真 IP patent business corporation (JP)
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