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:
Apr. 05, 2005
Filed:
Aug. 20, 2003
Kevin A. Murphy, Sterling Heights, MI (US);
Kevin A. Murphy, Sterling Heights, MI (US);
Siemens VDO Automotive, Inc., Chatham, CA;
Abstract
An exhaust gas re-circulation (EGR) tube includes a dual seal assembly that prevents exhaust gas leakages. The EGR tube has a first end in communication with an exhaust gas source and has a second end extending into an intake manifold enclosed within an intake manifold housing. A tapered sleeve surrounds the EGR tube at the second end. The sleeve has a first end that is directly attached to the EGR tube and a second end that is spaced apart from the EGR tube to define a gap. The sleeve has a tapered body such that the cross-sectional area of the gap increases from the first end to the second end of the sleeve. A first seal is positioned between the sleeve and the intake manifold housing and a second seal is positioned between the sleeve and the intake manifold. Grooves are formed within the exterior surface of the tube to receive the seals.