Title:
SOLENOID VALVE
Document Type and Number:
WIPO Patent Application WO/2012/002220
Kind Code:
A1
Abstract:
Disclosed is a solenoid valve. In a solenoid section (22) forming part of a solenoid valve (10), a sleeve (40) is provided on the inner circumferential side of a bobbin (36) around which a coil (34) is wound. This sleeve (40) is formed from magnetic material and has a cylindrical section (46) and a flange section (48) formed at the lower end of the cylindrical section (46). At the upper end of the cylindrical section (46), a tapered section (50) is formed in which the outer circumferential face is recessed in the radially inward direction. The tapered section (50) is arranged facing and in close contact with the outer circumferential face of a fixed core (38) such that the magnetic flux density in the tapered section (50) increases when the solenoid section (22) is excited.
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Inventors:
FUKANO Yoshihiro (TSUKUBA GIJUTSU CENTER 4-2-2, Kinunodai, Tsukubamirai-sh, Ibaraki 93, 〒3002493, JP)
深野喜弘 (〒93 茨城県つくばみらい市絹の台４－２－２ ＳＭＣ株式会社 筑波技術センター内 Ibaraki, 〒3002493, JP)
YOSHIDA Masami (TSUKUBA GIJUTSU CENTER 4-2-2, Kinunodai, Tsukubamirai-sh, Ibaraki 93, 〒3002493, JP)
深野喜弘 (〒93 茨城県つくばみらい市絹の台４－２－２ ＳＭＣ株式会社 筑波技術センター内 Ibaraki, 〒3002493, JP)
YOSHIDA Masami (TSUKUBA GIJUTSU CENTER 4-2-2, Kinunodai, Tsukubamirai-sh, Ibaraki 93, 〒3002493, JP)
Application Number:
JP2011/064273
Publication Date:
January 05, 2012
Filing Date:
June 22, 2011
Export Citation:
Assignee:
SMC KABUSHIKI KAISHA (4-14-1, Sotokanda Chiyoda-k, Tokyo 21, 〒1010021, JP)
ＳＭＣ株式会社 (〒21 東京都千代田区外神田四丁目１４番１号 Tokyo, 〒1010021, JP)
FUKANO Yoshihiro (TSUKUBA GIJUTSU CENTER 4-2-2, Kinunodai, Tsukubamirai-sh, Ibaraki 93, 〒3002493, JP)
深野喜弘 (〒93 茨城県つくばみらい市絹の台４－２－２ ＳＭＣ株式会社 筑波技術センター内 Ibaraki, 〒3002493, JP)
ＳＭＣ株式会社 (〒21 東京都千代田区外神田四丁目１４番１号 Tokyo, 〒1010021, JP)
FUKANO Yoshihiro (TSUKUBA GIJUTSU CENTER 4-2-2, Kinunodai, Tsukubamirai-sh, Ibaraki 93, 〒3002493, JP)
深野喜弘 (〒93 茨城県つくばみらい市絹の台４－２－２ ＳＭＣ株式会社 筑波技術センター内 Ibaraki, 〒3002493, JP)
International Classes:
F16K31/06; H01F7/121; H01F7/16
Attorney, Agent or Firm:
CHIBA Yoshihiro et al. (Shinjuku Maynds Tower 16F, 1-1 Yoyogi 2-chome, Shibuya-k, Tokyo 53, 〒1510053, JP)
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Claims:
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