公开(公告)号：US06964156B2

公开(公告)日：2005-11-15

申请号：US10691794

申请日：2003-10-23

Applicant: Ke Liu ,  Wayne G. Wnuck ,  Willem P. Leenhouts

Inventor： Ke Liu ,  Wayne G. Wnuck ,  Willem P. Leenhouts

IPC: C01B3/38 ,  F01N3/08 ,  F01N3/20 ,  F01N9/00 ,  F02M25/07 ,  F01N3/00

CPC classification number: C01B3/386 ,  C01B2203/0261 ,  C01B2203/1282 ,  C01B2203/1685 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/206 ,  F01N9/00 ,  F01N2240/30 ,  F01N2390/02 ,  F01N2610/04 ,  F01N2610/05 ,  F01N2610/146 ,  F02M26/23 ,  F02M26/36 ,  Y02T10/24 ,  Y02T10/47

Abstract: A catalytic partial oxidizer (30) provides syngas (hydrogen and carbon monoxide) to an apparatus intermittently using syngas such as valves (34) feeding NOx traps (35), for brief periods of time. During turndown times when syngas is not being used, either the output of the CPO is diverted (33) to the inlet (13) of an engine (12) through the engine gas recycle (EGR) system (43-46), or the amount of fuel (19) and exhaust (23) applied to the CPO is reduced (24, 26; 59, 60) so that the CPO merely stays warm and in a reduced state, thereby being ready to restart immediately. A mini-CPO (62) may provide syngas and heat to the major CPO (30) during the turndown time when syngas is not being used by the NOx traps.

Abstract translation: 催化部分氧化器（30）使用诸如供给NOx捕集器（35）的阀（34）等合成气短暂的时间间歇地向设备提供合成气（氢气和一氧化碳）。 在没有使用合成气的调节时间期间，CPO的输出通过发动机气体循环（EGR）系统（43-46）被转向（33）到发动机（12）的入口（13），或者 施加到CPO的燃料量（19）和排气（23）减少（24,26; 59,60），使得CPO仅保持暖和处于降低状态，从而立即准备重新启动。 当合成气不被NOx捕集器使用时，小型CPO（62）可以在调节时间期间向主要CPO（30）提供合成气和热量。

公开(公告)号：US20050086931A1

公开(公告)日：2005-04-28

申请号：US10691794

申请日：2003-10-23

Applicant: Ke Liu ,  Wayne Wnuck ,  Willem Leenhouts

Inventor： Ke Liu ,  Wayne Wnuck ,  Willem Leenhouts

IPC: C01B3/38 ,  F01N3/08 ,  F01N3/20 ,  F01N9/00 ,  F02M25/07 ,  F01N3/00

CPC classification number: C01B3/386 ,  C01B2203/0261 ,  C01B2203/1282 ,  C01B2203/1685 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/206 ,  F01N9/00 ,  F01N2240/30 ,  F01N2390/02 ,  F01N2610/04 ,  F01N2610/05 ,  F01N2610/146 ,  F02M26/23 ,  F02M26/36 ,  Y02T10/24 ,  Y02T10/47

Abstract: A catalytic partial oxidizer (30) provides syngas (hydrogen and carbon monoxide) to an apparatus intermittently using syngas such as valves (34) feeding NOx traps (35), for brief periods of time. During turndown times when syngas is not being used, either the output of the CPO is diverted (33) to the inlet (13) of an engine (12) through the engine gas recycle (EGR) system (43-46), or the amount of fuel (19) and exhaust (23) applied to the CPO is reduced (24, 26; 59, 60) so that the CPO merely stays warm and in a reduced state, thereby being ready to restart immediately. A mini-CPO (62) may provide syngas and heat to the major CPO (30) during the turndown time when syngas is not being used by the NOx traps.

Abstract translation: 催化部分氧化器（30）使用诸如供给NOx捕集器（35）的阀（34）等合成气短暂的时间间歇地向设备提供合成气（氢气和一氧化碳）。 在没有使用合成气的调节时间期间，CPO的输出通过发动机气体循环（EGR）系统（43-46）被转向（33）到发动机（12）的入口（13），或者 施加到CPO的燃料量（19）和排气（23）减少（24,26; 59,60），使得CPO仅保持暖和处于降低状态，从而立即准备重新启动。 当合成气不被NOx捕集器使用时，小型CPO（62）可以在调节时间期间向主要CPO（30）提供合成气和热量。

公开(公告)号：US5473887A

公开(公告)日：1995-12-12

申请号：US66100

申请日：1993-06-14

Applicant: Shinichi Takeshima ,  Kiyoshi Nakanishi ,  Satoshi Iguchi ,  Toshiaki Tanaka ,  Yasushi Araki ,  Shinya Hirota ,  Kiyoshi Kobashi

Inventor： Shinichi Takeshima ,  Kiyoshi Nakanishi ,  Satoshi Iguchi ,  Toshiaki Tanaka ,  Yasushi Araki ,  Shinya Hirota ,  Kiyoshi Kobashi

IPC: B01D53/04 ,  F01N3/08 ,  F01N3/20 ,  F01N9/00 ,  F01N13/02 ,  F02B1/04 ,  F02D41/02

CPC classification number: F02D41/0275 ,  B01D53/9422 ,  F01N13/009 ,  F01N13/0093 ,  F01N3/0842 ,  F01N3/101 ,  F01N2240/18 ,  F01N2390/02 ,  F01N2430/06 ,  F01N2610/03 ,  F01N3/0871 ,  F02B1/04 ,  Y02T10/22

Abstract: An NO.sub.x absorbent (18) is disposed in an exhaust passage of an internal combustion engine and the exhaust gas is constantly made to circulate through the NO.sub.x absorbent (18) during the operation of the engine. The NO.sub.x absorbent (18) absorbs the NO.sub.x when the air-fuel ratio of the exhaust gas flowing into the NO.sub.x absorbent (18) is lean and releases the absorbed NO.sub.x when the air-fuel ratio of the exhaust gas flowing into the NO.sub.x absorbent (18) becomes the stoichiometric air-fuel ratio or rich. In the majority of the engine operation region, the lean air-fuel mixture is burned in the combustion chamber (3), and the NO.sub.x generated at this time is absorbed into the NO.sub.x absorbent (18). The air-fuel ratio of the exhaust gas flowing into the NO.sub.x absorbent (18) is periodically made the stoichiometric air-fuel ratio or rich, and the NO.sub.x absorbed in the NO.sub.x absorbent (18) is released, and simultaneously reduced.

Abstract translation: PCT No.PCT / JP92 / 01279 Sec。 371日期：1993年6月14日 102（e）日期1993年6月14日PCT提交1992年10月2日PCT公布。 公开号WO93 / 07363 日本1999年04月15日。在内燃机的排气通道中设置有NOx吸收剂（18），并且在发动机运转期间不断地使废气循环通过NOx吸收剂（18）。 当流入NOx吸收剂（18）的排气的空燃比是稀的时，NOx吸收剂（18）吸收NOx，并且当流入NOx吸收剂的废气的空燃比释放吸收的NOx 18）成为化学计量空燃比或浓。 在大多数发动机运转区域，稀燃空气燃料混合物在燃烧室（3）中燃烧，此时产生的NOx被吸收到NOx吸收剂（18）中。 流入NOx吸收剂（18）的废气的空燃比被周期性地变成化学计量空燃比或浓，并且吸收在NOx吸收剂（18）中的NOx被释放，同时减少。

公开(公告)号：US5377486A

公开(公告)日：1995-01-03

申请号：US61466

申请日：1993-05-17

Applicant: Hamid B. Servati ,  Steven T. Darr ,  Mary B. Furness

Inventor： Hamid B. Servati ,  Steven T. Darr ,  Mary B. Furness

IPC: F01N3/20 ,  F01N3/24 ,  F01N13/02 ,  F01N3/28

CPC classification number: F01N3/2053 ,  F01N13/009 ,  F01N2390/02

Abstract: An apparatus for controlling temperatures of catalytic converters in an exhaust system of an internal combustion engine. The exhaust system includes a light-off catalytic converter and a main, or underbody, catalytic converter. The light-off catalytic converter is smaller and is disposed nearer to the engine than is the main catalytic converter so that it can be brought to an efficient operating temperature by engine exhaust gases in less time than can the main catalytic converter. This reduces the output of initial undesirable exhaust emissions during start-up periods when the engine and exhaust system components are relatively cold. A valve controls the flow of exhaust gases through each of the two catalytic converters to bring them most quickly to, and maintain them at, their most efficient operating temperatures.

Abstract translation: 一种用于控制内燃机的排气系统中的催化转化器的温度的装置。 排气系统包括关闭催化转化器和主要或底部的催化转化器。 轻型催化转化器比主催化转化器更靠近发动机，使其能够通过发动机废气在比主催化转化器更短的时间内达到有效的运行温度。 这在发动机和排气系统部件相对冷的启动期间减少了初始不期望的废气排放的输出。 阀门通过两个催化转化器中的每一个控制排气的流动，使其最快速地运行并保持在最有效的运行温度。

公开(公告)号：US5251564A

公开(公告)日：1993-10-12

申请号：US797701

申请日：1991-11-25

Applicant: Julius J. Rim ,  Ho Rim

Inventor： Julius J. Rim ,  Ho Rim

IPC: F01N3/02 ,  F01N3/027 ,  F01N3/032 ,  F02B1/04 ,  F02B3/06 ,  F02D21/08 ,  F23J3/00

CPC classification number: F01N3/032 ,  F01N3/02 ,  F01N3/027 ,  F02D21/08 ,  F01N2390/02 ,  F02B1/04 ,  F02B3/06 ,  F02M26/15 ,  F02M26/38 ,  F02M26/44

Abstract: A combustion box exhaust filtration system and method which removes both particulate matter (PM) and unburned hydrocarbons (UHC) from the exhaust gases. Two filters in parallel are used, each alternating operation as the other regenerates. Each filter is preferred to be constructed in a conventional manner and operates at between 100 to 300 degrees Centigrade. A microprocessor controlled valve system regulates which filter is active and which is regenerating and/or inactive. PM accumulates at the active filter, with UHC condensing on the PM. Accordingly, only PM and UHC free gasses pass out the exhaust. When the active filter becomes clogged, the microprocessor switches it to inactive status, and switches the other filter to active status. Regeneration of the inactive filter is initiated by the microprocessor using a glow plug at a predetermined location in the filter, in which PM and UHC burn slowly across the entire filter. A recirculation conduit provides for the gases produced by the resulting slow regeneration to be directed to the air intake of the combustion box. Any remaining UHC or PM will be subsequently burned in the combustion box. When regeneration has completed, the inactive filter will await being switched by the microprocessor to active status when the other filter has become sufficiently clogged that it is time for the microprocessor to switch it inactive and thereafter initiate its regeneration.

Abstract translation: 一种从排气中除去颗粒物（PM）和未燃碳氢化合物（UHC）的燃烧箱排气过滤系统和方法。 使用两个并联的滤波器，每个交替操作作为另一个再生。 每个过滤器优选以常规方式构造并且在100至300摄氏度之间操作。 微处理器控制的阀门系统调节哪个过滤器是活动的，哪个是再生和/或无效。 PM在有源滤波器上累积，在PM上具有UHC冷凝。 因此，只有PM和UHC自由气体排出废气。 当有源滤波器堵塞时，微处理器将其切换到非活动状态，并将另一个滤波器切换到活动状态。 无效滤波器的再生由微处理器使用在过滤器中的预定位置处的电热塞启动，其中PM和UHC在整个过滤器上缓慢燃烧。 再循环管道将通过所产生的慢再生所产生的气体引导到燃烧箱的进气口。 任何剩余的UHC或PM将随后在燃烧箱中燃烧。 当再生完成时，当另一个过滤器已经充分堵塞时，无效的过滤器将等待被微处理器切换到活动状态，以至于微处理器将其无效切换到其后再启动再生。

公开(公告)号：US5085049A

公开(公告)日：1992-02-04

申请号：US549738

申请日：1990-07-09

Applicant: Julius J. Rim ,  Ho Rim

Inventor： Julius J. Rim ,  Ho Rim

IPC: F01N3/02 ,  F01N3/027 ,  F01N3/032 ,  F01N13/04 ,  F02B1/04 ,  F02B3/06 ,  F02D21/08

CPC classification number: F01N3/032 ,  F01N13/011 ,  F01N3/02 ,  F01N3/027 ,  F02D21/08 ,  F01N2390/02 ,  F02B1/04 ,  F02B3/06 ,  F02M26/15 ,  F02M26/38 ,  F02M26/44 ,  Y10S55/30

Abstract: A diesel engine exhaust filtration system and method which removes both diesel particulate matter (DPM) and unburned hydrocarbons (UHC) from the exhaust gases. Two filters in parallel are used, each alternating operation as the other regenerates. Each filter is preferred to be constructed in a conventional manner and operates at between 100 to 300 degrees Centigrade. A microprocessor controlled valve system regulates which filter is active and which is regenerating and/or inactive. DPM accumulates at the active filter, with UHC condensing on the DPM. When the active filter becomes clogged, the microprocessor switches it to inactive status, and switches the other filter to active status. Low temperature regeneration is initiated by the microprocessor in which DPM and UHC burn slowly across the entire filter. A recirculation conduit provides for the gases produced by the regeneration to be directed to the air intake of the diesel engine. Any remaining UHC or DPM will be subsequently burned in the combustion chambers of the diesel engine or taken out by the other active filter. When regeneration has completed, the inactive filter will await being switched by the microprocessor to active status when the other filter has become sufficiently clogged that it is time for it to be regenerated.

Abstract translation: 柴油发动机排气过滤系统和方法，从废气中除去柴油颗粒物（DPM）和未燃碳氢化合物（UHC）。 使用两个并联的滤波器，每个交替操作作为另一个再生。 每个过滤器优选以常规方式构造并且在100至300摄氏度之间操作。 微处理器控制的阀门系统调节哪个过滤器是活动的，哪个是再生和/或无效。 DPM在有源滤波器上累积，DPM上具有UHC冷凝。 当有源滤波器堵塞时，微处理器将其切换到非活动状态，并将另一个滤波器切换到活动状态。 低温再生由微处理器启动，其中DPM和UHC在整个过滤器上缓慢燃烧。 再循环管道将由再生产生的气体提供给柴油发动机的进气口。 任何剩余的UHC或DPM将随后在柴油发动机的燃烧室中燃烧或被另一个有源过滤器取出。 当再生完成时，当另一个过滤器已经充分堵塞时，无效的过滤器将等待被微处理器切换到活动状态，以便它被再生。

公开(公告)号：US5024054A

公开(公告)日：1991-06-18

申请号：US607601

申请日：1990-10-31

Applicant: Marty A. Barris ,  Wayne M. Wagner

Inventor： Marty A. Barris ,  Wayne M. Wagner

IPC: F01N3/027 ,  F01N3/032 ,  F01N9/00 ,  F02B3/06 ,  G01N33/38

CPC classification number: F01N9/002 ,  F01N3/027 ,  F01N3/032 ,  F01N2390/02 ,  F02B3/06 ,  G01N33/388 ,  Y02T10/47

Abstract: In a diesel engine exhaust system a plurality of valved ceramic filters are connected in parallel in the exhaust stream and loaded sequentially. While one filter is preferentially loaded, a second filter is opened to the exhaust stream when backpressure reaches a predetermined value. The secondary filter is removed from the exhaust stream when air flow to the engine drops a discrete amount below a peak air flow determined by the backpressure which would cause the secondary filter to be placed in the exhaust stream. The preferentially loaded filter is bypassed when completely loaded and regenerated. The secondary filter is then preferentially loaded and the sequence continues.

Abstract translation: 在柴油发动机排气系统中，多个阀式陶瓷过滤器在排气流中并联连接并依次加载。 当优先加载一个过滤器时，当背压达到预定值时，第二过滤器对排气流打开。 当空气流到发动机的空气流下降离子量低于由背压确定的峰值空气流量时，会使二次过滤器被放置在废气流中，二级过滤器从废气流中排出。 当完全加载和再生时，优先加载的过滤器被旁路。 然后优先加载次级滤波器，并且序列继续。

公开(公告)号：US4835964A

公开(公告)日：1989-06-06

申请号：US145772

申请日：1988-01-19

Applicant: Satoru Kume ,  Michiyasu Yoshida ,  Tateo Kume ,  Hiroki Oshima ,  Mitsuhiro Kawagoe ,  Kazuo Koga

Inventor： Satoru Kume ,  Michiyasu Yoshida ,  Tateo Kume ,  Hiroki Oshima ,  Mitsuhiro Kawagoe ,  Kazuo Koga

IPC: 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 classification number: 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

Abstract: 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.

Abstract translation: 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：US4835963A

公开(公告)日：1989-06-06

申请号：US901483

申请日：1986-08-28

Applicant: James A. Hardy

Inventor： James A. Hardy

IPC: F01N3/02 ,  F01N3/023 ,  F01N9/00 ,  F02B3/06 ,  F02D9/04

CPC classification number: F01N3/0235 ,  F01N3/023 ,  F01N9/002 ,  F02B37/025 ,  F01N13/107 ,  F01N2260/14 ,  F01N2390/02 ,  F02B3/06 ,  F02D9/04 ,  Y02T10/144 ,  Y02T10/47

Abstract: A diesel engine exhaust particulate trap and regeneration system for trapping of particulates in the engine gases and periodic burning thereof is disclosed. Collected particulates are burned in the trap by increasing the trap temperature utilizing a backpressure valve in the exhaust gas line. A microprocessor, which receives engine operating parameters via sensors, compares the sensed parameter valves to engine maps stored in its memory and opens or closes the valve via an actuator in response thereto.

公开(公告)号：US4608640A

公开(公告)日：1986-08-26

申请号：US569481

申请日：1984-01-09

Applicant: Motohiro Shinzawa ,  Yoji Hasegawa

Inventor： Motohiro Shinzawa ,  Yoji Hasegawa

IPC: F01N3/025 ,  F01N9/00 ,  F01N3/28 ,  B01D46/42

CPC classification number: F01N3/025 ,  F01N9/002 ,  F01N2390/02 ,  F01N2900/0421 ,  Y02T10/47

Abstract: An apparatus controls the operation of a regenerative device for generating a quantity of heat to burn the exhaust particles collected in a trap located in the exhaust conduit of an internal combustion engine. The apparatus is responsive to the pressures on the inlet and outlet sides of the trap for calculating a pressure differential across the trap and a threshold value for comparison therewith as a function of the pressure on the inlet side of the trap. The apparatus operates the regenerative device to regenerate the trap when the pressure differential across the trap reaches the calculated threshold value.

Abstract translation: 一种装置控制用于产生一定量的热量的再生装置的操作，以将收集在位于内燃机的排气管道中的捕集器中的废气颗粒燃烧。 该装置响应于捕集器的入口侧和出口侧的压力，用于计算捕集器两端的压力差和用于与之比较的阈值作为捕集器入口侧的压力的函数。 当跨陷阱的压差达到计算的阈值时，该装置操作再生装置以再生陷阱。