Engine muffler
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United States of America Patent
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Feb 10, 2015
Grant Date -
Sep 25, 2014
app pub date -
Mar 20, 2014
filing date -
Mar 21, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An engine muffler includes a cylindrical muffler body whose interior is partitioned by at least one partition plate in a longitudinal direction of the muffler body into a plurality of expansion chambers. The muffler body is constructed of a plurality of divided muffler body members divided from each other in the longitudinal direction at the position of the partition plate, and a gap is provided between opposed end portions of the divided muffler body members. The partition plate has an annular section held in fitting engagement with the inner peripheral surface of at least one of the opposed end portions, and it is positioned in such a manner as to close the gap. The opposed end portions are welded, from a radially outward direction, to the outer peripheral surface of the annular section along their respective entire perimeters.
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