Title:
流量制御バルブ用シールおよび流量制御バルブ装置
Document Type and Number:
Japanese Patent JP7405599
Kind Code:
B2
Abstract:
To provide a flow control valve seal that is manufactured at a low cost, that makes wear damage of a rotor with which the flow control valve seal slidably contacts less, and that is superior in its low leak performance, low friction performance, and low wear performance. A seal (6) is installed in a flow control valve device (1) including a housing (2) having an introduction part (5) that receives a cooling water from an internal combustion engine, and a resin rotor (4) disposed in the housing (2) and having a spherical outer peripheral surface (4a), the rotor (4) being rotated relative to the housing (2) . The seal (6) is disposed between the introduction part (5) and the rotor (4) in the housing (2) and slidably contacts with the outer peripheral surface (4a) of the rotor (4). The seal (6) is an injection molded body of a resin composition having injection-moldable fluororesin as a base resin. The fluororesin is at least one resin selected from among a tetrafluoroethylene-perfluoro alkylvinyl ether copolymer resin, a tetrafluoroethylene-hexafluoropropylene copolymer resin, and a tetrafluoroethylene-ethylene copolymer resin.
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Inventors:
Ken Yasuda
Takuya Ishii
Takuya Ishii
Application Number:
JP2019231496A
Publication Date:
December 26, 2023
Filing Date:
December 23, 2019
Export Citation:
Assignee:
ntn corporation
International Classes:
F16K5/06; F01P7/16; F16J15/18; F16J15/3284; F16K5/04
Domestic Patent References:
| JP2018179122A | ||||
| JP2001501235A | ||||
| JP2005233395A | ||||
| JP58167367U | ||||
| JP38006934B1 | ||||
| JP46009391B1 | ||||
| JP54044422U |
Foreign References:
| WO2016009749A1 | ||||
| WO2018115490A1 | ||||
| EP3290758A1 |
Attorney, Agent or Firm:
Wake Hikari
Wake Misao
Wake Misao