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:
Apr. 25, 2006
Filed:
Sep. 21, 2004
Zhengbai Liu, Naperville, IL (US);
Laura M. Ricart-ugaz, Chicago, IL (US);
Timothy Chang, Canton, MI (US);
Yuanxian Zhu, Naperville, IL (US);
Zhengbai Liu, Naperville, IL (US);
Laura M. Ricart-Ugaz, Chicago, IL (US);
Timothy Chang, Canton, MI (US);
Yuanxian Zhu, Naperville, IL (US);
International Engine Intellectual Property Company, LLC, Warrenville, IL (US);
Abstract
A venturi mixing system mixes intake air with exhaust gases for exhaust gas recirculation (EGR) in an internal combustion engine. The venturi mixing system has a venturi disposed in a mixing conduit. The venturi is connected to an intake air conduit and a supply conduit. The venturi and mixing conduit form an annular cavity connected to an EGR conduit. The venturi forms a mixing chamber. One or more inset conduits connect to the venturi and extend into the mixing chamber. Each inset conduit has an end outlet and one or more side outlets. The venturi generates a lower pressure region in the intake air. The inset conduits generate a turbulence field in the lower pressure region. The inset conduits direct intake air into the turbulence field. The inset conduits direct exhaust gases through the end and side outlets into the turbulence field. The exhaust gases mix with the intake air in the turbulence field to form a combustion gas for combustion of fuel in the engine. The venturi provides the combustion gas to the supply conduit.