Invention Grant
- Patent Title: Solenoid flow control valve
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Application No.: US17054055Application Date: 2019-04-23
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Publication No.: US11293560B2Publication Date: 2022-04-05
- Inventor: Hiroaki Fujiwara , Noboru Ito
- Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
- Applicant Address: JP Kobe
- Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
- Current Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
- Current Assignee Address: JP Kobe
- Agency: Oliff PLC
- Priority: JPJP2018-089388 20180507
- International Application: PCT/JP2019/017158 WO 20190423
- International Announcement: WO2019/216193 WO 20191114
- Main IPC: F16K31/42
- IPC: F16K31/42 ; F15B13/04 ; F16K31/06

Abstract:
A solenoid flow control valve includes: an inlet passage that allows an inlet port to communicate with a pilot pressure chamber; an outlet passage that allows the pilot pressure chamber to communicate with an outlet port; a fixed restrictor provided on the outlet passage; a pilot spool that closes the inlet passage when a solenoid is in a non-excitation state, whereas when solenoid is in an excitation state, opens inlet passage at an opening degree corresponding to an input current value to generate a pilot pressure corresponding to the input current value in pilot pressure chamber, the pilot spool opening a bypass passage when input current value is less and closes bypass passage when input current value is greater than or equal to the predetermined value; and a main spool that controls a flow rate from inlet to outlet port in accordance with the pilot pressure chamber's pilot pressure.
Public/Granted literature
- US20210215267A1 SOLENOID FLOW CONTROL VALVE Public/Granted day:2021-07-15
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