Invention Grant
- Patent Title: Solenoid operated fluid control valve
- Patent Title (中): 电磁式液压控制阀
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Application No.: US12069013Application Date: 2008-02-06
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Publication No.: US08387644B2Publication Date: 2013-03-05
- Inventor: Hamid Najmolhoda , David L. Seid
- Applicant: Hamid Najmolhoda , David L. Seid
- Applicant Address: US MI Auburn Hills
- Assignee: Saturn Electronics & Engineering, Inc.
- Current Assignee: Saturn Electronics & Engineering, Inc.
- Current Assignee Address: US MI Auburn Hills
- Main IPC: F15B13/043
- IPC: F15B13/043 ; F01L1/34 ; B01D35/06

Abstract:
Solenoid operated fluid control valve for a cam phasing mechanism of an internal combustion engine includes first and second control ports, a 2-stage hydraulically pilot-actuated, pressure balanced spool having an integral control feedback passage and a linear force solenoid actuator operably coupled to a pilot valve of a pilot stage. The spool valve includes an exhaust path common to pilot and spool exhaust passages.
Public/Granted literature
- US20080258090A1 Solenoid operated fluid control valve Public/Granted day:2008-10-23
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