Invention Grant
- Patent Title: Solenoid valve
- Patent Title (中): 电磁阀
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Application No.: US14131465Application Date: 2012-05-15
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Publication No.: US09328840B2Publication Date: 2016-05-03
- Inventor: Toshiaki Tsuchizawa
- Applicant: Toshiaki Tsuchizawa
- Applicant Address: JP Tokyo
- Assignee: Koganei Corporation
- Current Assignee: Koganei Corporation
- Current Assignee Address: JP Tokyo
- Agency: McCormick, Paulding & Huber LLP
- Priority: JP2011-155978 20110714
- International Application: PCT/JP2012/062387 WO 20120515
- International Announcement: WO2013/008527 WO 20130117
- Main IPC: F01L3/10
- IPC: F01L3/10 ; F16K31/06 ; F16K31/72

Abstract:
A solenoid is operated so as to be switched between a closed valve state in which the valve element is brought into contact with the valve seat by application of a spring force and an open valve state in which an electric current is passed through a coil (16) and the valve element is separated from the valve seat by a magnetic force. A fixed iron core (15) has a U-shape, and magnetically-attracting surfaces (26) are provided on respective ends thereof. A resin case (17) into which the fixed iron core (15) and the coil (16) are incorporated is provided with a bottom surface (27) having openings through which the magnetically-attracting surfaces (26) are exposed to the outside. A case contact surface (51) protruding toward a movable element in comparison with the magnetically-attracting surfaces (26) is formed on the bottom surface (27) of the case (17). Resin films (52) are provided on the respective magnetically-attracting surfaces (26).
Public/Granted literature
- US20140151590A1 SOLENOID VALVE Public/Granted day:2014-06-05
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