发明名称 |
RESONANCE DEVICE, AND EXHAUST DEVICE FOR INTERNAL COMBUSTION ENGINE |
摘要 |
A resonance device (28) which is provided in an exhaust device (23) having a silencer (27) that silences sound of exhaust gas from an engine (21) and which silences a specific frequency sound includes: an exhaust pipe (34) which is provided downstream of the silencer (27) in an exhaust flow direction and whose first end portion (34a) is connected to the silencer (27); an inner pipe (35) connected to a second end portion (34b) of the exhaust pipe (34) and having at least one penetration hole (35a); and an outer pipe (36) that is attached to the inner pipe (35) so as to surround a periphery of the inner pipe (35) and that defines, together with an outer periphery of the inner pipe (35), space that forms a resonance chamber (37). An outer periphery of the second end portion (34b) of the exhaust pipe (34) is inserted into the inner pipe (35) so that a step (39) is formed at a connecting portion between the second end portion (34b) and the inner pipe (35). |
申请公布号 |
WO2009031012(A2) |
申请公布日期 |
2009.03.12 |
申请号 |
WO2008IB02293 |
申请日期 |
2008.09.04 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA;MATSUEDA, KOJI |
发明人 |
MATSUEDA, KOJI |
分类号 |
F01N1/02;F01N1/08;F01N13/02;F01N13/08 |
主分类号 |
F01N1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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