The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 05, 2013
Filed:
Feb. 06, 2008
Applicants:
Hamid Najmolhoda, Grand Rapids, MI (US);
David L. Seid, Conklin, MI (US);
Inventors:
Hamid Najmolhoda, Grand Rapids, MI (US);
David L. Seid, Conklin, MI (US);
Assignee:
Saturn Electronics & Engineering, Inc., Auburn Hills, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B 13/043 (2006.01); F01L 1/34 (2006.01); B01D 35/06 (2006.01);
U.S. Cl.
CPC ...
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.