-
91.
公开(公告)号:US5517820A
公开(公告)日:1996-05-21
申请号:US214303
申请日:1994-03-17
申请人: Osamu Kuroda , Takahiro Tachi , Miho Saito , Toshio Ogawa , Noriko Watanabe , Akira Kato , Hiroshi Miyadera
发明人: Osamu Kuroda , Takahiro Tachi , Miho Saito , Toshio Ogawa , Noriko Watanabe , Akira Kato , Hiroshi Miyadera
CPC分类号: F01N3/0835 , B01D53/9495 , F01N13/009 , F01N3/0878 , F01N2240/18 , F01N2250/12 , F01N2410/12 , F01N2570/14 , F01N3/20 , F02B1/04 , Y02T10/20 , Y02T10/22
摘要: An apparatus is provided for purifying an exhaust gas discharged from an internal combustion engine, which comprises a first exhaust gas passage including a nitrogen oxide removing catalyst and a three way catalyst, a second exhaust gas passage including the three way catalyst, a gas flow regulator for selectively directing the exhaust gas to the first and second exhaust gas passages, and a control unit which directs the exhaust gas to the first exhaust gas passage (thereby passing exhaust gas first through the nitrogen oxide removing catalyst and thereafter through the three way catalyst) when the temperature of the nitrogen oxide removing catalyst is within a hydrocarbon adsorbing range of temperature thereof while the engine is warming up, and to the second exhaust gas passage (thereby passing the exhaust gas only through the three way catalyst) when the temperature of the nitrogen oxide removing catalyst exceeds the hydrocarbon adsorbing range of temperature thereof.
摘要翻译: 提供了一种用于净化从内燃机排出的废气的装置,其包括包括氮氧化物除去催化剂和三元催化剂的第一废气通道,包括三元催化剂的第二排气通道,气流调节器 用于将废气选择性地引导到第一和第二废气通道;以及控制单元,其将废气引导到第一废气通道(从而首先通过废气首先通过氮氧化物除去催化剂,然后通过三元催化剂) 当发动机升温时氮氧化物除去催化剂的温度在其烃吸附范围内,并且当第二排气通道(从而仅通过三元催化剂使排气通过时) 氮氧化物除去催化剂超过其烃吸附温度范围。
-
公开(公告)号:US4124092A
公开(公告)日:1978-11-07
申请号:US800015
申请日:1977-05-24
申请人: Sadao Kajiya , Tomiaki Atsumi , Osamu Kuroda , Tamio Nakakubo
发明人: Sadao Kajiya , Tomiaki Atsumi , Osamu Kuroda , Tamio Nakakubo
CPC分类号: F01N1/02 , F01N1/084 , F01N2490/155
摘要: A muffler for automobiles having a drum-shaped expansion chamber of diameter D and length h, to which gas inlet and outlet pipes and an insert pipe of a Helmholtz resonator open so that the gas flow traverses the expansion chamber substantially diametrically therethrough, wherein the ratio h/D is substantially 0.25 - 0.4.
摘要翻译: 一种用于汽车的消音器,其具有直径D和长度为h的鼓形膨胀室,气体入口和出口管以及亥姆霍兹共振器的插入管打开,使得气流基本上沿径向穿过膨胀室,其中, h / D基本上为0.25-0.4。
-