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. 01, 2015
Filed:
Feb. 27, 2014
GM Global Technology Operations Llc, Detroit, MI (US);
Ko-Jen Wu, Troy, MI (US);
Alan W. Hayman, Romeo, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
An internal combustion engine includes an engine defining a plurality of cylinders including full-time active cylinders and cylinders capable of being deactivated. A turbocharger system having a high pressure turbocharger in communication with the exhaust passages from the full-time active cylinders and a low pressure turbocharger in communication with the exhaust passages from the cylinders capable of being deactivated. A control valve is provided in communication with the exhaust passages from the full-time active cylinders and being operable in an open position to allow exhaust gases from the full-time active cylinders to pass through the second turbocharger along with the exhaust gasses from the cylinders capable of being deactivated, and being operable in a closed position to direct exhaust gases from the full-time active cylinders to pass through the first turbocharger.