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:
Jul. 12, 2011
Filed:
Dec. 08, 2005
Heinz-georg Foerst, Cologne, DE;
Karl Lutter, Overath, DE;
Eckhard Haas, Cologne, DE;
DEUTZ Aktiengesellschaft, Cologne, DE;
Abstract
An exhaust gas recirculation control system for internal combustion engines includes an intake pipe () for delivering combustion air to the individual combustion chambers, an exhaust pipe () for discharging the exhaust gases from the combustion chambers, an exhaust gas recirculation line () that connects the intake pipe () and the exhaust pipe (), and a mechanical injection pump () which is controlled by a control rod () is disclosed. An electrically controlled EGR valve (exhaust gas recirculation valve) () is located in the exhaust gas recirculation line () in order to control the effective cross section of the exhaust gas recirculation line () while an electrical pick-off device () determines the position of the control rod () and then controls the EGR valve ().