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. 10, 2014
Filed:
Oct. 07, 2011
Erik L. Piper, Cedar Falls, IA (US);
Alan D. Sheidler, Moline, IL (US);
Craig W. Lohmann, Denver, IA (US);
Erik L. Piper, Cedar Falls, IA (US);
Alan D. Sheidler, Moline, IL (US);
Craig W. Lohmann, Denver, IA (US);
Deere & Company, Moline, IL (US);
Abstract
Disclosed is a power system comprising an internal combustion engine. A fan is associated with the engine and configured for providing an air flow. The power system further comprises an EGR system having an air cooled, HT EGR cooler configured for cooling recirculated exhaust gas, wherein the HT EGR cooler is positioned downstream of the internal combustion engine. The HT EGR cooler is further positioned such that the air flow travels across the outside of the HT EGR cooler. The EGR system further comprises an air cooled, LT EGR cooler is configured for further cooling at least a portion of the recirculated exhaust gas, wherein the LT EGR cooler is positioned downstream of the HT EGR cooler. The LT EGR cooler is further positioned such that the air flow travels across the outside of the LT EGR cooler.