Patent Number: 6,293,010

Title: Exhaust treatment device for automotive vehicle having one-piece housing with integral inlet and outlet gas shield diffusers

Abstract: An exhaust treatment device for an internal combustion engine includes a generally cylindrical substrate and sealing system which are swaged in place within a one-piece housing. The one-piece housing includes segmented inlet and outlet gas shields and diffusers which are spun from a single piece of tubing which also contains the substrate. The spun inlet and outlet gas shields and diffusers have segmented configurations including multiple concave and convex sections produced by spin-forming of the housing. The exhaust treatment device is assembled without the need for welding or any other high temperature operation.

Inventors: Umin; Gerald (New Boston, MI), Nowka; Erich James (Ann Arbor, MI), Umin; Edward A. (Rockwood, MI), Albrecht; Michael Blake (Dearborn Heights, MI), Morrow; Timothy D. (Ypsilanti, MI), Harold; Vincent (Brantford, CA)

Assignee: Ford Global Technologies, Inc.

International Classification: F01N 3/28 (20060101); B21D 022/14 (); B21D 022/16 (); B23P 015/00 (); F01N 003/28 ()

Expiration Date: 09/25/2018