Acoustics – Sound-modifying means – Muffler – fluid conducting type
Reexamination Certificate
2007-05-04
2009-10-20
Donels, Jeffrey (Department: 2832)
Acoustics
Sound-modifying means
Muffler, fluid conducting type
C181S212000, C180S296000
Reexamination Certificate
active
07604092
ABSTRACT:
In an exhaust system of a motor vehicle, a tailpipe cover is disposed on the exhaust pipe and protrudes through a cutout in the vehicle rear part with a defined gap clearance. In a hot condition, where a length of the exhaust system is increased due to thermal expansion, a greater clearance arises between the edge of the cutout and the tailpipe cover than in the cold condition. The tailpipe cover is trumpet cone shaped.
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Donels Jeffrey
Dr. Ing. h.c. F. Porsche Aktiengesellschaft
Phillips Forrest M
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