Title:
VALVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/105872
Kind Code:
A1
Abstract:
A valve device (100) comprises: a main spool (170) having supply passages (195, 196, 197) and a supply-side land part (171); and a valve block (10) having an outward guiding passage (123). The supply passage (195) connects the outward guiding passage (123) and a supply port (121a) during a process of a movement of the main spool (170) from a neutral position toward one of stroke ends in the axial direction. The supply passage (196) connects the outward guiding passage (123) and a supply port (121b) during a process of a movement of the main spool (170) from the neutral position toward the other stroke end in the axial direction. The supply passage (197) connects the outward guiding passage (123) and the supply port (121b) during a process of a movement of the main spool (170) toward said one stroke end, and connects the outward guiding passage (123) and the supply port (121a) during a process of a movement of the main spool (170) toward the other stroke end.
Inventors:
FUKUDA SHUNSUKE (JP)
FUKUSHIMA RYO (JP)
FUKUSHIMA RYO (JP)
Application Number:
PCT/JP2022/034265
Publication Date:
June 15, 2023
Filing Date:
September 13, 2022
Export Citation:
Assignee:
KYB CORP (JP)
International Classes:
F16K11/07
Domestic Patent References:
| WO2018025964A1 | 2018-02-08 |
Foreign References:
| JPH10220409A | 1998-08-21 | |||
| JP2020008085A | 2020-01-16 | |||
| JP2019124248A | 2019-07-25 | |||
| JP2009228872A | 2009-10-08 | |||
| JPH0124457Y2 | 1989-07-25 | |||
| JP2008008386A | 2008-01-17 | |||
| JPH33200730A |
Attorney, Agent or Firm:
GOTOH & PARTNERS (JP)
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