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:
Nov. 13, 2012
Filed:
Aug. 04, 2009
Luis Carlos Cattani, Aurora, IL (US);
Paul Gottemoller, Palos Park, IL (US);
Bashar Y. Melhem, Orland Park, IL (US);
Martin R. Zielke, Lockport, IL (US);
Luis Carlos Cattani, Aurora, IL (US);
Paul Gottemoller, Palos Park, IL (US);
Bashar Y. Melhem, Orland Park, IL (US);
Martin R. Zielke, Lockport, IL (US);
International Engine Intellectual Property Company, LLC, Lisle, IL (US);
Abstract
A system for driving an EGR stream for an engine includes an exhaust gas turbine, a main compressor and a supplemental EGR compressor. The turbine drives the main compressor to pressurize intake air and drives the supplemental EGR compressor to pressurize an EGR exhaust gas stream to be introduced into the intake air system. A supplemental EGR compressor takes suction of exhaust gas downstream from the turbine. A three-way valve proportions exhaust gas between the engine exhaust gas discharge conduit and the suction of the supplemental EGR compressor. The turbine drives a shaft and the main compressor and the supplemental EGR compressor are driven by having corresponding compressor wheels fixed onto the common shaft.