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. 21, 2012
Filed:
Mar. 28, 2007
Vincent Leroy, Montbeliard, FR;
Vincent Leroy, Montbeliard, FR;
Faurecia Systemes d'Echappement, Nanterre, FR;
Abstract
This exhaust manifold comprises: an outer envelope comprising: at least one flange connected to the outer shell and having at least one gas circulation port, the outer envelope having at least one gas circulation port; at least one internal duct () arranged inside the outer envelope and opening via a gas circulation port, characterized in that: the or each internal duct () is formed, at least for the most part of its length, of a ceramic material and is engaged through the or each port; and it comprises an annular diaphragm () that is impermeable to the gases but radially and axially elastically deformable and positioned around the or each internal duct (), between the or each internal duct () and the outer envelope (), the diaphragm () being connected at its periphery to at least one out of the outer envelope () and the or each internal duct ().