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Patent Searching and Data


Title:
FLOW PASSAGE SWITCHING VALVE
Document Type and Number:
WIPO Patent Application WO/2017/199654
Kind Code:
A1
Abstract:
Provided is a flow passage switching valve comprising: a valve body (302) having a valve body outer peripheral surface (302a); a valve main body (32) having a main body inner peripheral surface (322) which is opposed to the valve body outer peripheral surface and which faces a valve chamber (321); and a seal member (34) sandwiched in the radial direction of the valve, between the valve body outer peripheral surface and the main body inner peripheral surface. The seal member has a first seal section (341), a second seal section (342), and a connection section (345) which connects the first seal section and the second seal section. The first seal section is extended so as to surround the peripheral edge (322a) of a first opening hole, which faces the main body inner peripheral surface, and the second seal section is extended so as to surround the peripheral edge (322b) of a second opening hole, which faces the main body inner peripheral surface. The connection section is disposed at the position where the relative circumferential distance (A1) between the first seal section and the second seal section is smallest. A first connection end section (345a) and a second connection end section (345b) of the connection section are elastically deformed by being pressed outward in the radial direction of the valve by the valve body outer peripheral surface.

Inventors:
MANO Takamitsu (Showa-cho Kariya-cit, Aichi 61, 〒4488661, JP)
OMI Yasumitsu (Showa-cho Kariya-cit, Aichi 61, 〒4488661, JP)
MOCHIZUKI Kenichi (Todoroki Setagaya-k, Tokyo 82, 〒1580082, JP)
MATSUMOTO Takayuki (Todoroki Setagaya-k, Tokyo 82, 〒1580082, JP)
Application Number:
JP2017/015185
Publication Date:
November 23, 2017
Filing Date:
April 13, 2017
Export Citation:
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Assignee:
DENSO CORPORATION (1-1 Showa-cho, Kariya-city Aichi, 61, 〒4488661, JP)
FUJIKOKI CORPORATION (7-17-24, Todoroki Setagaya-k, Tokyo 82, 〒1580082, JP)
International Classes:
F16K5/04; F16K11/085
Domestic Patent References:
WO2003006859A12003-01-23
Foreign References:
JPS5375570A1978-07-05
Attorney, Agent or Firm:
YOU-I PATENT FIRM (Nagoya Nishiki City Bldg. 4F 1-6-5, Nishiki Naka-ku, Nagoya-sh, Aichi 03, 〒4600003, JP)
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