Title:
VALVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/176142
Kind Code:
A1
Abstract:
Provided is a valve device for which reliability has been improved. A plurality of orifice passages are formed by providing the inner surface of a valve member with grooves which extend in the radial direction of a cylinder. Due to this configuration, even if foreign matter clogs some of the orifice passages, the area of the flowpath can be ensured by the remaining orifice passages, and the reliability of the valve device can be increased.
Inventors:
TOYA SUSUMU (JP)
IGARASHI YASUHIRO (JP)
SHIBAHARA KAZUAKI (JP)
TAKAHASHI KAZUKI (JP)
IGARASHI YASUHIRO (JP)
SHIBAHARA KAZUAKI (JP)
TAKAHASHI KAZUKI (JP)
Application Number:
PCT/JP2023/001760
Publication Date:
September 21, 2023
Filing Date:
January 20, 2023
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
F16K17/04; B60G99/00; B61F5/10; F16F9/14; F16F9/32; F16F9/34; F16F9/49
Domestic Patent References:
| WO2015079501A1 | 2015-06-04 |
Foreign References:
| JP2000179717A | 2000-06-27 | |||
| JP2013173438A | 2013-09-05 | |||
| JP2021181818A | 2021-11-25 |
Attorney, Agent or Firm:
YAMAMOTO, Osamu et al. (JP)
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