Title:
VALVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/209031
Kind Code:
A1
Abstract:
This valve device comprises: a housing (10) having a valve chamber inner wall (101) that forms a valve chamber (11), and an accommodation space inner wall (104) that forms an accommodation space (14); a valve member (20) having a valve member body portion (21); a valve seat member (30) that forms a valve seat flow channel (31); an annular securing member (52) that secures the valve seat member to the housing; and an annular housing-side seal portion (45) that inhibits the flow of fluid between the valve seat member and the accommodation space inner wall. The valve seat member has a tubular portion (32) that forms the valve seat flow channel on the inner side, and a flange portion (33) that is contiguous with the tubular portion. The flange portion is sandwiched between the securing member and an opposing surface (114) of the accommodation space inner wall in the axial direction, whereby the valve seat member is secured to the housing. The securing member is secured to the accommodation space inner wall in a state of airtightness between the securing member and the accommodation space inner wall. The housing-side seal portion is mainly constituted from a rubber material and is sandwiched between the flange portion and the securing member.
Inventors:
HARADA HIROYUKI (JP)
MORITANI YUICHIRO (JP)
SUGAWARA TAKEHIRO (JP)
MORITANI YUICHIRO (JP)
SUGAWARA TAKEHIRO (JP)
Application Number:
PCT/JP2020/012406
Publication Date:
October 15, 2020
Filing Date:
March 19, 2020
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
F16K3/22; F16K27/04
Foreign References:
| JP2018091321A | 2018-06-14 | |||
| JP2015094335A | 2015-05-18 |
Attorney, Agent or Firm:
YOU-I PATENT FIRM (JP)
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