Automobile muffler
AssigneeFujitsubo Giken Co., Ltd.
InventorIsamu Fujitsubo
Life of this patent
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Abstract
Disclosed is an automobile muffler having a drain pipe communicating with the upperstream, upper half inside sound-deadening area of its outer pipe, thereby allowing the moisture of the air drawn into the sound-deadening space to leave for the surrounding atomosphere via the drain pipe prior to condensation of the moisture to water in the sound-deadening space, thus making it unnecessary to drain water from the muffler.
Claims3
An automobile muffler comprising an exhaust pipe 1 having a plurality of apertures made on a circumference thereof, an outer pipe 2 enclosing the exhaust pipe 1 and sound-deadening material 3' packed in a sound-deadening space 3 defined between the exhaust pipe and the outer pipe, said outer pipe 2 having a drain pipe 14 for drawing water from said sound-deadening space 3 to an exterior of the automobile muffler, characterized in that said drain pipe 14 is connected to said outer pipe so as to communicate with an upper half area X of said sound-deadening space 3.
Dependencies are inferred from the claim text.