Invention Grant
- Patent Title: Solenoid valve
- Patent Title (中): 电磁阀
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Application No.: US13503996Application Date: 2011-02-23
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Publication No.: US08931517B2Publication Date: 2015-01-13
- Inventor: Eiji Okamoto
- Applicant: Eiji Okamoto
- Applicant Address: JP Tokyo
- Assignee: Eagle Industry Co., Ltd.
- Current Assignee: Eagle Industry Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Harness, Dickey & Pierce, PLC
- Priority: JP2010-046395 20100303
- International Application: PCT/JP2011/054012 WO 20110223
- International Announcement: WO2011/108423 WO 20110909
- Main IPC: F16K11/07
- IPC: F16K11/07 ; F16K31/06

Abstract:
The present invention provides a solenoid valve able to control flow amount as desired without receiving influence of change in fluid pressure. In the present invention, in a control valve for opening and closing a first poppet valve 103 and a second poppet valve 104 by a solenoid portion, a first pressure receiving area S1 which is a seating area of the first poppet valve 103, a second pressure receiving area S2 which is a seating area of the second poppet valve 104, a third pressure receiving area S3 which is a pressure receiving area of a first pressure sensing portion 145 and a fourth pressure receiving area S4 which is a pressure receiving area of a second pressure sensing portion 155 are made approximately equal to each other. Thereby unbalanced forces received from fluid flowing in and out when each poppet valve is actuated are all canceled.
Public/Granted literature
- US20120211686A1 SOLENOID VALVE Public/Granted day:2012-08-23
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