Silencer of exhaust gases, in particular for motor vehicles

Details Silencer of exhaust gases, in particular for motor vehicles Silencer of exhaust gases, in particular for motor vehicles

2006-04-21

2010-06-15

Donels, Jeffrey (Department: 2832)

Acoustics

Sound-modifying means

Muffler, fluid conducting type

C181S252000, C181S255000, C181S256000, C181S266000, C181S267000, C181S269000, C181S273000, C181S276000, C422S176000, C422S177000

Reexamination Certificate

active

07735604

ABSTRACT:
Silencer of exhaust gases, in particular for motor vehicles, comprising an inlet opening (13) and a cylindrical coat (1) provided with an outlet pipe (29) at its opposing end, said cylindrical coat (1) has an internal division into at least four working sections (5, 6, 7, 8) containing axially arranged elements, especially suppression elements, expansion chambers, a whirl chamber, resonators and twirling, deflecting, and accumulating elements, confined with at least three crosswise arranged partitions (2, 3, 4), while the cylindrical coat (1) opposite to the outlet tube (29) is provided with an inlet section (10) freely encompassing its first working section (5) provided with inlet holes (18) of exhaust gases, said inlet section (10) being attached to the surface of the cylindrical coat (1).

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International Search Report for PCT Application No. PCT/CZ2006/000022 (3 pages).
Written Opinion of the International Searching Authority for PCT Application No. PCT/CZ2006/000022 (5 pages).
Official Letter from the Czech Patent And Trademark Office from related Czech Application No. PV 2006-203 (2 pages).

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