David A Luce

Address:

3719 Westland Ave, Toledo, OH 43613

VIN:

3D7MX48CX7G712983

Make:

DODGE

Model:

RAM PICKUP 3500

Year:

2007

US Patent:

8402756, Mar 26, 2013

Filed:

Apr 21, 2009

Appl. No.:

12/427035

Inventors:

David R. Luce - Perrysburg OH, US
Raymond Morelli, Jr. - Perrysburg OH, US
William Brown - Toledo OH, US
Jon W. Harwood - Toledo OH, US

Assignee:

Faurecia Exhaust Systems, Inc. - Toledo OH

International Classification:

F02B 27/02
F01N 3/10
F01N 1/00

US Classification:

60313, 60299, 60323

Abstract:

An exhaust system includes first and second exhaust pipes each of which has an upstream end communicating with an engine and a downstream end. The exhaust pipes are of different lengths. A length equalizer includes an outer pipe and an inner pipe disposed within the outer pipe. Once end of the inner pipe communicates with a space between the inner and outer pipes. The longer of the two exhaust pipes communicates with the space between the inner and outer pipes of the length equalizer. The shorter of the two exhaust pipes communicates directly with the inner pipe of the length equalizer. The distance between the downstream end of the longer exhaust pipe and the inner end of the inner pipe of the length equalizer is substantially equal to the difference in length between the longer and shorter exhaust pipes.