发明授权
- 专利标题: Exhaust apparatus for a V-type internal combustion engine
- 专利标题(中): V型内燃机排气装置
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申请号: US8534申请日: 1987-01-29
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公开(公告)号: US4731993A公开(公告)日: 1988-03-22
- 发明人: Yoshiaki Ito , Ryuichi Deguchi , Hiroki Matsuoka , Toru Hanafusa
- 申请人: Yoshiaki Ito , Ryuichi Deguchi , Hiroki Matsuoka , Toru Hanafusa
- 申请人地址: JPX Toyota
- 专利权人: Toyota Jidosha Kabushiki Kaisha
- 当前专利权人: Toyota Jidosha Kabushiki Kaisha
- 当前专利权人地址: JPX Toyota
- 优先权: JPX61-10259 19860129
- 主分类号: F01N13/10
- IPC分类号: F01N13/10 ; B60K13/04 ; F01N3/28 ; F01N13/08 ; F01N7/10
摘要:
An exhaust apparatus connected to a V-type internal combustion engine which is mounted in an engine compartment in a front part of a vehicle. The exhaust apparatus comprises a front exhaust manifold and a rear exhaust manifold connected to banks of the V-type engine respectively, an exhaust assembly connected to the exhaust manifolds and a catalytic converter interposed in the exhaust assembly. The wall thickness of the front exhaust manifold is made thinner than that of the rear exhaust manifold. By the thin front exhaust manifold, the heat capacity of the front exhaust path extending from the front exhaust manifold toward the catalytic converter is lessened, thereby suppressing the dropping of temperature of the exhaust gas flowing through the front exhaust path. As a result, the dropping of temperature of the exhaust gas reaching the catalytic converter is suppressed as a whole, and a catalyst in the catalytic converter is warmed up quickly to a required temperature.
公开/授权文献
- USD354826S Mailbox 公开/授权日:1995-01-24
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