Title:
SPOOL VALVE
Document Type and Number:
WIPO Patent Application WO/2022/097515
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a spool valve with which a spool can be stably moved in an axial direction. This spool valve (1) comprises a sleeve (20) in which a plurality of ports (22–25) are formed, and a spool (10) which is positioned inside the sleeve (20) and in which a land (13) is formed so as to be able to slide against inner walls (33), (34) of the sleeve (20), wherein an indentation (50) is formed in the land (13) over the entire circumferential direction.
Inventors:
KAWATO TADANOBU (JP)
NISHIMURA NAOKI (JP)
HOSHI MASAKI (JP)
NISHIMURA NAOKI (JP)
HOSHI MASAKI (JP)
Application Number:
PCT/JP2021/039230
Publication Date:
May 12, 2022
Filing Date:
October 25, 2021
Export Citation:
Assignee:
EAGLE IND CO LTD (JP)
International Classes:
F16K3/24
Domestic Patent References:
| WO2002018828A1 | 2002-03-07 |
Foreign References:
| US4593719A | 1986-06-10 | |||
| JP2001263529A | 2001-09-26 | |||
| JP2009115289A | 2009-05-28 | |||
| JP2014163478A | 2014-09-08 |
Attorney, Agent or Firm:
SHIGENOBU Kazuo et al. (JP)
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