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. 22, 2010
Filed:
Sep. 07, 2006
Joseph Grandas, Dearborn, MI (US);
Joseph Grandas, Dearborn, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A system for a vehicle, comprising of a diesel engine having an intake system and an exhaust system, a first EGR loop coupled between said intake system and said exhaust system and having a first valve and a first cooler located therein, a second EGR loop coupled between said intake system and said exhaust system and having a second valve and a second cooler located therein, and a control system operating the first and second valves in a first condition where both valves provide EGR flow to the engine, and at least temporarily increasing flow in the first EGR loop and decreasing flow in the second EGR loop when EGR flow is decreased to a condition where buildup in one of said coolers is increased.