Invention Grant
- Patent Title: Method and apparatus for controlling a solenoid actuated inlet valve
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Application No.: US13710827Application Date: 2012-12-11
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Publication No.: US09671033B2Publication Date: 2017-06-06
- Inventor: Yosuke Tanabe , Donald J. McCune
- Applicant: Hitachi, Ltd.
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Mattingly & Malur, PC
- Main IPC: F16K31/06
- IPC: F16K31/06 ; F04B7/00 ; F02D41/38 ; F02M59/36 ; F02D41/20

Abstract:
A method and apparatus for controlling a solenoid actuated inlet valve to a pump chamber of a piston pump. A control circuit energizes the solenoid to open the inlet valve in synchronism with the reciprocation of the piston and thereafter de-energize the solenoid to initiate closure of the inlet valve. The inlet valve is decelerated following de-energization of the solenoid thus effectively reducing engine noise attributable to the inlet valve.
Public/Granted literature
- US20140158205A1 Method and apparatus for controlling a solenoid actuated inlet valve Public/Granted day:2014-06-12
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