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:
Sep. 15, 2015
Filed:
Jun. 13, 2014
Dave Fletcher, Flint, MI (US);
Brian M. Graichen, Leonard, MI (US);
Keith Hampton, Ann Arbor, MI (US);
Matt Gilmer, Whitmore Lake, MI (US);
James H. Miller, Ortonville, MI (US);
Steve Long, Berkley, MI (US);
Dave Fletcher, Flint, MI (US);
Brian M. Graichen, Leonard, MI (US);
Keith Hampton, Ann Arbor, MI (US);
Matt Gilmer, Whitmore Lake, MI (US);
James H. Miller, Ortonville, MI (US);
Steve Long, Berkley, MI (US);
DAYCO IP HOLDINGS, LLC, Troy, MI (US);
Abstract
An engine system having a compressor coupled to an engine and supplying air to an intake manifold, a throttle controlling the supply of air from the compressor to the intake manifold, a compressor recirculation valve (CRV) having a pneumatic control chamber, and a throttle aspirator having its motive section in fluid communication with an inlet of the throttle and its discharge section in fluid communication with an outlet of the throttle and its suction port in fluid communication with the pneumatic control chamber of the CRV. Such an engine system automatically minimizes surge during boost without a control system activating the CRV. Here, the CRV operates purely on the changes in pressure within the system forming a loop that resets itself. In another embodiment, a gate valve and a vacuum canister may be included rather than having the throttle aspirator directly connected to the CRV's pneumatic control chamber.