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, 2007
Filed:
Nov. 17, 2005
Gustav Berggren, Stockholm, SE;
Thomas Holm, Knivsta, SE;
Carl-adam Torbjornsson, Linkoping, SE;
Hans Welin, Sankt Ibb, SE;
Roland Wangelin, Vange, SE;
Gustav Berggren, Stockholm, SE;
Thomas Holm, Knivsta, SE;
Carl-Adam Torbjornsson, Linkoping, SE;
Hans Welin, Sankt Ibb, SE;
Roland Wangelin, Vange, SE;
Haldex Hydraulics AB, , SE;
Abstract
A system for controlling the mixture of an air flow and an exhaust gas flow in an engine is disclosed generally comprising an air conduit for the inlet air, which has an exhaust gas inlet passing through the wall thereof for introducing recirculating exhaust gas into the conduit, and a sleeve having an inlet end through which air enters the sleeve and an outlet end through which air exits the sleeve into the conduit, where the sleeve is movable along the conduit to vary the extent to which the outlet end thereof occludes the exhaust gas inlet, thereby regulating the introduction of exhaust gas into the air conduit, which in some embodiments, is completely closed off. In some embodiments, the outlet end of the sleeve is reduced, and certain embodiments include a streamlined body to regulate the air exiting the sleeve.