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:
Jan. 29, 2013
Filed:
May. 07, 2010
Timothy J. Johnson, Clinton Township, MI (US);
Kevin C. Wong, Ann Arbor, MI (US);
Mark D. Finkel, Clinton Township, MI (US);
Steven M. Hubble, Ann Arbor, MI (US);
Roger Bennett, New Baltimore, MI (US);
Richard W. Gushman, Rochester Hills, MI (US);
Kim Bloxsom, New Baltimore, MI (US);
Joshua J. Ksiazkiewicz, Gilbert, AZ (US);
Timothy J. Johnson, Clinton Township, MI (US);
Kevin C. Wong, Ann Arbor, MI (US);
Mark D. Finkel, Clinton Township, MI (US);
Steven M. Hubble, Ann Arbor, MI (US);
Roger Bennett, New Baltimore, MI (US);
Richard W. Gushman, Rochester Hills, MI (US);
Kim Bloxsom, New Baltimore, MI (US);
Joshua J. Ksiazkiewicz, Gilbert, AZ (US);
Abstract
A control system for an engine includes a restriction determination module and a valve control module. The restriction determination module determines a desired exhaust back pressure of the engine based on an exhaust flow rate of the engine. The valve control module selectively adjusts a valve position of an exhaust valve that restricts an exhaust flow of the engine based on the desired exhaust back pressure. The exhaust valve may include a valve body, a throttle plate, and an annular protrusion coupled to an inner surface of the valve body and protruding towards the throttle plate. The annular protrusion may abut a side of the throttle plate and may restrict fluid flow through an annular space between the throttle plate and the inner surface when the throttle plate is positioned in a rotational position transverse to a direction of fluid flow. A related method is also provided.