To provide an exhaust muffler structure for an internal combustion engine, which has the structure easy to manufacture and is improved in vibration-damping of muffler outer walls.SOLUTION: An exhaust muffler structure for an internal combustion engine includes muffling chambers 3A, 4A which muffle exhaust gas and guide the exhaust gas to the outside. Vibration damping plates 51, 52, 53, 54, which are the plates thinner than outer walls 32B, 32C, 32E, 42B of the muffling chambers 3A, 4A, are mounted to inner surfaces of the outer walls 32B, 32C, 32E, 42B with at least parts of outer peripheral portions 51B of the vibration damping plates 51, 52, 53, 54 being in contact with the inner surfaces of the outer walls 32B, 32C, 32E, 42B.SELECTED DRAWING: Figure 2
【課題】製造が容易な構造でマフラーの外壁の制振性を高めた内燃機関用の排気マフラー構造を提供する。【解決手段】排気ガスを消音して外部に導く消音室3A、4Aを備えた内燃機関用の排気マフラー構造において、前記消音室3A、4Aの外壁32B、32C、32E、42Bの内面に対して、前記外壁32B、32C、32E、42Bより薄板の制振板51、52、53、54を、前記制振板51、52、53、54の外周部51Bの少なくとも一部を前記外壁32B、32C、32E、42Bの内面に接触させて取り付けた。【選択図】図2
EXHAUST MUFFLER STRUCTURE FOR INTERNAL COMBUSTION ENGINE
内燃機関用の排気マフラー構造
2021-10-07
Patent
Electronic Resource
Japanese
IPC: | F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL , Schalldämpfer oder Auspuffvorrichtungen für Gase von Kraft- und Arbeitsmaschinen oder von Kraftmaschinen allgemein / B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |
MUFFLER FOR AN EXHAUST SYSTEM OF AN INTERNAL COMBUSTION ENGINE
European Patent Office | 2017
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