Layout of catalyst of vehicle

Details Layout of catalyst of vehicle Layout of catalyst of vehicle

2005-05-27

2008-03-25

Denion, Thomas (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

Pulsed, timed, tuned or resonating exhaust

C060S322000

Reexamination Certificate

active

07347046

ABSTRACT:
An exhaust system for a vehicle includes a muffler including end walls and a side wall connected to the end walls enclosing an interior space of the muffler. A first pipe is disposed within the interior space of the muffler and extends from one end of the muffler at which exhaust gas enters the muffler. A catalyst is located in the first pipe and at least one additional pipe is disposed within the interior space such that a longitudinal axis of the at least one additional pipe is spaced from a longitudinal axis of the first pipe in a direction that is substantially perpendicular to the longitudinal axis of the first pipe. The first pipe includes a plurality of holes disposed in a sidewall thereof at an upstream side of the catalyst in a direction in which exhaust gas passes through the muffler. The holes in the first pipe are arranged such that some of the exhaust gas passes through the catalyst and the remainder of the exhaust gas passes through the plurality of holes so as to bypass the catalyst.

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Official communication issued in the counterpart European Application No. EP 06 01 0862, completed on Oct. 17, 2006.

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