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:
Aug. 28, 2012
Filed:
Jul. 30, 2009
Daniel Joseph Styles, Canton, MI (US);
Christopher Oberski, Plymouth, MI (US);
Christopher Cowland, Dexter, MI (US);
Patrick Sexton, Ypsilanti, MI (US);
Daniel Joseph Styles, Canton, MI (US);
Christopher Oberski, Plymouth, MI (US);
Christopher Cowland, Dexter, MI (US);
Patrick Sexton, Ypsilanti, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A turbocharged, diesel engine has a small catalyst provided upstream of the turbocharger with EGR collected from the exhaust stream downstream of the catalyst and upstream of the turbocharger. By making the catalyst small, it packages into a pipe coupling the manifold to the turbocharger, readily reaches lightoff, and absorbs little exhaust energy, thereby providing acceptable conversion of hydrocarbons and CO, but still allowing fast turbocharger response. In one embodiment, the engine has two cylinder banks, two exhaust manifolds, and two pre-turbo catalysts installed upstream of the turbine.