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:
Jun. 26, 2012
Filed:
Jun. 18, 2010
Applicants:
Ian Graham Pegg, Chelmsford, GB;
Roland Stark, Herts, GB;
Inventors:
Ian Graham Pegg, Chelmsford, GB;
Roland Stark, Herts, GB;
Assignee:
Ford Global Technologies LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A heat exchanging system suitable for use in an exhaust gas recirculation (EGR) circuit comprises a split EGR heat exchanger arrangement. Exhaust gas is used to warm engine oil via a first heat exchanger during initial stages of an engine operating cycle. In the later stages of the operating cycle, recirculated exhaust gases are diverted to flow through the second heat exchanger where they are cooled by the engine coolant.