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US 11,655,741 B2Granted
Muffler for engine
AssigneeMarelli Corporation
InventorsTsukasa Minato, Masayuki Hara, Noriyoshi Sasaki, Nobuhiro Saitou
Life of this patent
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Abstract
A muffler for an engine includes a muffler body, at least one partition wall, and at least one reinforcing plate. The muffler body has an inner space formed by a shell. The partition wall includes a flange portion which is in tight contact with an inner surface of the shell, and the partition wall divides the inner space of the muffler body into a plurality of chambers. The reinforcing plate is welded on an outer surface of the shell at a position facing the flange portion of the partition wall.
Claims7
A muffler for an engine, comprising:
- a shell that defines a muffler body having a flat profile and an inner space divided into a plurality of chambers by a partition wall with a flange portion in tight contact with an inner surface of the shell;
- a reinforcing plate in rectangular shape at a position on an outer surface of the shell facing the flange portion of the partition wall;
- a pair of spot welds on opposing sides of a longitudinal axis of the reinforcing plate welding the reinforcing plate to the shell;
- and
- a plug weld positioned between the pair of spot welds welding the reinforcing plate, the flange portion, and the shell.
2 more elements
Dependencies are inferred from the claim text.