Invention Grant
- Patent Title: Piezoelectric element-driven valve and flow rate control device including piezoelectric element-driven valve
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Application No.: US15506162Application Date: 2015-08-17
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Publication No.: US10174858B2Publication Date: 2019-01-08
- Inventor: Kaoru Hirata , Katsuyuki Sugita , Ryousuke Dohi , Kouji Nishino , Nobukazu Ikeda
- Applicant: FUJIKIN INCORPORATED
- Applicant Address: JP Osaka
- Assignee: FUJIKIN INCORPORATED
- Current Assignee: FUJIKIN INCORPORATED
- Current Assignee Address: JP Osaka
- Agency: Griffin and Szipl PC
- Priority: JP2014-177202 20140901
- International Application: PCT/JP2015/004062 WO 20150817
- International Announcement: WO2016/035262 WO 20160310
- Main IPC: F16K31/00
- IPC: F16K31/00 ; F16K7/14 ; H01L41/053 ; H01L41/083 ; H01L41/09 ; G05D7/06 ; F16K7/16

Abstract:
A piezoelectric element-driven valve includes a body provided with a fluid channel and a valve seat, a valve element which opens and closes the fluid channel by being in contact with and separated from the valve seat of the body, and piezoelectric actuators which drive the valve element to open and close by means of the extension of the piezoelectric element. In the piezoelectric element-driven valve, at least two piezoelectric actuators are arranged on a straight line via a spacer which allows pulling out of wiring.
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