MUFFLER
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United States of America Patent
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N/A
Issued Date -
Nov 26, 2015
app pub date -
Dec 18, 2013
filing date -
Jan 11, 2013
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Provided is a muffler having a double pipe portion formed therein in which an end portion of a first tubular member is inserted into a second tubular member from an end portion thereof. A leading end portion of the second tubular member is joined to an outer periphery of the first tubular member. A portion that forms the double pipe portion of the second tubular member comprises a first portion located closer to an end of the first tubular member, and a second portion that is located closer to an end of the second tubular member and that has an enlarged diameter compared with the first portion. A resonance chamber is formed between the first tubular member and the second portion. A communication path that allows communication between an exhaust flow path and the resonance chamber is formed between the first tubular member and the first portion.
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