-
公开(公告)号:US4835964A
公开(公告)日:1989-06-06
申请号:US145772
申请日:1988-01-19
申请人: Satoru Kume , Michiyasu Yoshida , Tateo Kume , Hiroki Oshima , Mitsuhiro Kawagoe , Kazuo Koga
发明人: Satoru Kume , Michiyasu Yoshida , Tateo Kume , Hiroki Oshima , Mitsuhiro Kawagoe , Kazuo Koga
IPC分类号: F01N3/021 , F01N3/023 , F01N3/035 , F01N3/20 , F01N3/22 , F01N3/30 , F01N3/36 , F01N7/00 , F01N9/00 , F02B1/04 , F02B3/06 , F02D11/08 , F02D21/08 , F02D41/02 , F02D41/08 , F02D41/14 , F02D41/38 , F02D41/40 , F02M25/07 , G01L19/06
CPC分类号: F01N3/2033 , F01N3/0211 , F01N3/023 , F01N3/035 , F01N3/222 , F01N3/30 , F01N3/36 , F01N9/00 , F01N9/002 , F02D11/08 , F02D41/0055 , F02D41/0235 , F02D41/029 , F02D41/08 , F02D41/1446 , F02D41/38 , F02D41/401 , F02M26/57 , G01L19/0609 , F01N2250/02 , F01N2330/06 , F01N2390/02 , F01N2430/02 , F01N2610/1453 , F01N2900/0422 , F02B1/04 , F02B3/06 , F02B37/00 , F02D2041/0022 , F02D2200/0406 , F02D2200/0812 , F02D2250/32 , F02D41/408 , F02M26/15 , Y02T10/26 , Y02T10/42 , Y02T10/44 , Y02T10/47
摘要: Flammable fine particles (particulates) consisting principally of carbon and hydrocarbons are discharged from a diesel engine to its exhaust system. A diesel particulate oxidizer (DPO) is disposed in the exhaust passage for collecting and burning the particulates without allowing the particulates to be discharged directly to the atmosphere. This DPO comprises a ceramic foam with catalyst. When the quantity of particulates collected is above a predetermined value, the DPO will undergo clogging. To prevent this, a high temperature gas containing oxygen is fed to the DPO to burn (regenerate) the collected particulates. In order to accelerate the normal regeneration of the DPO, there are provided a regeneration means for making a retard control of the fuel injection timing in the diesel engine, and a regeneration timing control means for controlling the operation of the regeneration means. Further, there is provided a regeneration timing detection means for detecting the regeneration timing of the DPO.
摘要翻译: 主要由碳和烃组成的易燃微粒(颗粒)从柴油发动机排放到其排气系统。 柴油颗粒氧化剂(DPO)设置在排气通道中用于收集和燃烧颗粒而不使颗粒直接排放到大气中。 该DPO包括具有催化剂的陶瓷泡沫。 当收集的颗粒物的数量超过预定值时,DPO会发生堵塞。 为了防止这种情况,含氧气体的高温气体被供给到DPO以燃烧(再生)所收集的微粒。 为了加速DPO的正常再生,提供了一种用于对柴油发动机中的燃料喷射正时进行延迟控制的再生装置,以及用于控制再生装置的运转的再生定时控制装置。 此外,提供了一种用于检测DPO的再生定时的再生定时检测装置。
-
公开(公告)号:US4719751A
公开(公告)日:1988-01-19
申请号:US717848
申请日:1985-03-29
申请人: Satoru Kume , Michiyasu Yoshida , Tateo Kume , Hiroki Oshima , Mitsuhiro Kawagoe , Kazuo Koga
发明人: Satoru Kume , Michiyasu Yoshida , Tateo Kume , Hiroki Oshima , Mitsuhiro Kawagoe , Kazuo Koga
IPC分类号: F01N3/021 , F01N3/023 , F01N3/035 , F01N3/20 , F01N3/22 , F01N3/30 , F01N3/36 , F01N7/00 , F01N9/00 , F02B1/04 , F02B3/06 , F02D11/08 , F02D21/08 , F02D41/02 , F02D41/08 , F02D41/14 , F02D41/38 , F02D41/40 , F02M25/07 , G01L19/06 , F01N3/02
CPC分类号: F01N3/2033 , F01N3/0211 , F01N3/023 , F01N3/035 , F01N3/222 , F01N3/30 , F01N3/36 , F01N9/00 , F01N9/002 , F02D11/08 , F02D41/0055 , F02D41/0235 , F02D41/029 , F02D41/08 , F02D41/1446 , F02D41/38 , F02D41/401 , F02M26/57 , G01L19/0609 , F01N2250/02 , F01N2330/06 , F01N2390/02 , F01N2430/02 , F01N2610/1453 , F01N2900/0422 , F02B1/04 , F02B3/06 , F02B37/00 , F02D2041/0022 , F02D2200/0406 , F02D2200/0812 , F02D2250/32 , F02D41/408 , F02M26/15 , Y02T10/26 , Y02T10/42 , Y02T10/44 , Y02T10/47
摘要: A particulate oxidizer system for a diesel engine comprises a diesel particulate oxidizer (DPO) in the exhaust line to collect and burn particulates in the exhaust. The DPO comprises ceramic foam with a catalyst. When the quantity of particulates in the DPO reaches a predetermined value, high temperature gas containing oxygen is fed to the DPO to burn off (regenerate) the collected particulates. This is achieved by retard control of the injection timing under control of an engine control unit (ECU). A regeneration timing detection means detects the regeneration timing in the DPO. When the quantity of particulates in the DPO falls below a predetermined value, the ECU provides a signal to increase the idling revolution of the engine.
摘要翻译: 用于柴油发动机的颗粒氧化剂系统包括在排气管线中的柴油颗粒氧化剂(DPO),用于收集和燃烧废气中的颗粒。 DPO包括具有催化剂的陶瓷泡沫。 当DPO中的微粒量达到预定值时,含氧气体的高温气体被供给至DPO以烧掉(再生)收集的微粒。 这通过在发动机控制单元(ECU)的控制下延迟对喷射正时的控制来实现。 再生定时检测装置检测DPO中的再生定时。 当DPO中的微粒量下降到预定值以下时,ECU提供增加发动机空转的信号。
-