Exhaust gas recirculation line for an automobile engine
    71.
    发明授权
    Exhaust gas recirculation line for an automobile engine 有权
    用于汽车发动机的废气再循环管路

    公开(公告)号:US6155042A

    公开(公告)日:2000-12-05

    申请号:US183180

    申请日:1998-10-30

    摘要: An exhaust recirculation of gases in internal combustion engines, notably for automobiles, which has a catalytic converter, recycling apparatus for recycling the exhaust gases and heat recovers apparatus for recovering heat from the exhaust gases. A single heat exchanger is arranged for cooling the recycled exhaust gases and recovering the heat energy from the exhaust gases for heating the passenger compartment of the vehicle and for protecting the catalytic converter from excessively high exhaust temperatures. Valves for diverting exhaust gases, a back-pressure valve and an EGR valve are controlled for this purpose by control electronics. The invention is particularly applicable to direct-injection petrol or diesel engines or to lean-mixture petrol engines.

    摘要翻译: 内燃机,特别是用于汽车的气体的排气再循环,其具有催化转化器,用于再循环废气的回收设备和用于从废气中回收热量的热回收设备。 设置单个热交换器用于冷却回收的废气并从废气中回收热能,以加热车辆的乘客舱并保护催化转化器免于过高的排气温度。 用于转向排气的阀门,背压阀和EGR阀由控制电子器件控制。 本发明特别适用于直喷汽油或柴油发动机或稀混汽油发动机。

    Method and system for estimating temperature of a heated exhaust gas
oxygen sensor in an exhaust system having a variable length pipe
    72.
    发明授权
    Method and system for estimating temperature of a heated exhaust gas oxygen sensor in an exhaust system having a variable length pipe 失效
    用于估计具有可变长度管道的排气系统中的加热废气氧传感器的温度的方法和系统

    公开(公告)号:US5901553A

    公开(公告)日:1999-05-11

    申请号:US885206

    申请日:1997-06-30

    IPC分类号: F01N3/20 F02D41/14 F01N3/00

    摘要: A method for estimating a temperature of a tip of an exhaust gas oxygen (EGO) sensor used with a heater in an electronic engine control for an engine having an exhaust system wherein the exhaust system includes a variable length exhaust pipe having a short path and a long path for transporting exhaust gas from the engine to the HEGO sensor and an exhaust valve positioned in the exhaust pipe for regulating the flow of exhaust gas between the short path and the long path utilizes control logic to determine whether the exhaust gas is flowing through the short path or the long path, determine a temperature of the unheated HEGO sensor based on the path of flow of the exhaust gas, and determine whether the heater is on. If the heater is not on, an amount of heat applied to the sensor is set to zero. If the heater is on, an increase in the temperature of the HEGO sensor is determined based on an amount of heat applied to the sensor. The control logic then determines the temperature of the heated HEGO sensor based on the temperature of the unheated HEGO sensor and the increase in the temperature.

    摘要翻译: 一种用于估计在具有排气系统的发动机的电子发动机控制中与加热器一起使用的废气氧气(EGO)传感器的末端的温度的方法,其中所述排气系统包括具有短路径的可变长度排气管和 用于将废气从发动机运送到HEGO传感器的长路径以及位于排气管中的用于调节短路径和长路径之间的废气流的排气阀利用控制逻辑来确定废气是否流过 短路径或长路径,基于废气流动的路径确定未加热的HEGO传感器的温度,并确定加热器是否打开。 如果加热器未打开,则向传感器施加的热量设置为零。 如果加热器打开,则根据施加到传感器的热量来确定HEGO传感器的温度的升高。 然后,控制逻辑基于未加热的HEGO传感器的温度和温度的升高确定加热的HEGO传感器的温度。

    Muffler with a scavenging effect
    78.
    发明授权
    Muffler with a scavenging effect 失效
    消声器具有清除效果

    公开(公告)号:US5280143A

    公开(公告)日:1994-01-18

    申请号:US70899

    申请日:1993-06-03

    申请人: Yoshiaki Kakuta

    发明人: Yoshiaki Kakuta

    摘要: A muffler disposed close to the atmospheric discharge end of the exhaust system, consisting of an accelerating part (4) which accelerates the exhaust gas flow and a negative pressure chamber (5) which generates negative pressure in association with the acceleration thereof. Said negative pressure acts to connect the negative pressure chamber (5) with the flow-distributing chamber (2) disposed on the exhaust pipe (1) at the upper stream of the silencing part (19) by means of the bypass (9), in order to promote suction of the exhaust gas flow. The flow-distributing chamber (2), which has a larger cross-sectional area than that of the exhaust pipe (1), contains at its center an exhaust port (3) which is opened to the accelerating part (4), and flow-distributing holes (7) that are opened to the bypass (9) in the peripheral area.

    摘要翻译: 靠近排气系统的大气排放端的消声器,由加速废气流的加速部分(4)和与其加速度相关联的产生负压的负压室(5)组成。 所述负压用于通过旁路(9)将负压室(5)与设置在排气管(1)上的流动分配室(2)连接在消音部分(19)的上游, 以促进废气流的吸入。 具有比排气管(1)大的截面面积的分流室(2)在其中心包含向加速部(4)开口的排气口(3) - 在周边区域中对旁路(9)打开的分配孔(7)。

    Particulate purging apparatus for diesel engine exhaust
    79.
    发明授权
    Particulate purging apparatus for diesel engine exhaust 失效
    柴油机排气用颗粒净化装置

    公开(公告)号:US4974414A

    公开(公告)日:1990-12-04

    申请号:US290413

    申请日:1988-11-29

    摘要: A Diesel engine exhaust particulate purging apparatus includes sensors (11a, 11b) for detecting the quantity of particulates accumulating in a trap (2), a temperature sensor (10) disposed on the upstream side of the trap for measuring the temperature of exhaust gas flowing into the trap (2), and a control device (12) for controlling current supply to an electric heater (8) and for controlling an open--close operation of a bypass control valve on the basis of output signals from the accumulated quantity detecting means (11a, 11b) and the temperature sensor (10).

    摘要翻译: PCT No.PCT / JP88 / 00652 Sec。 371日期:1988年11月29日 102(e)日期1988年11月29日PCT Filed 1988年6月30日PCT Pub。 出版物WO89 / 00238 日本1990年1月12日。一种柴油发动机废气净化装置,包括用于检测蓄积在捕集器(2)中的微粒量的传感器(11a,11b),设置在捕集器上游侧的温度传感器(10) 测量流入所述捕集器(2)的废气的温度;以及控制装置(12),用于控制对电加热器(8)的电流供给,并且用于基于输出控制旁路控制阀的打开关闭操作 来自累积量检测装置(11a,11b)和温度传感器(10)的信号。

    Device for the after treatment of exhaust gases of an internal combustion engine
    80.
    发明授权
    Device for the after treatment of exhaust gases of an internal combustion engine 失效
    用于处理内燃机排气的装置

    公开(公告)号:US3793830A

    公开(公告)日:1974-02-26

    申请号:US3793830D

    申请日:1972-05-19

    申请人: AUGUST P

    发明人: AUGUST P

    摘要: A device for the treatment of exhaust gases leaving an internal combustion engine in which a main flow passage for the gases is surrounded by another passage having therein axially arranged treatment chambers containing catalyst material. The main flow passage is provided with a flow control valve which, at low engine speeds, diverts substantially all of the exhaust gases to the outer passage surrounding the main flow passage, while at higher speeds the valve deflects and permits an ever increasing amount of the exhaust gases to pass through the main flow passage. The main flow passage and the outlet end of the outer passage containing the catalyst chambers are coaxially arranged and taper inwardly so that there is a mingling of the gases from the passages at the discharge end of the device. The device is adapted for direct connection to the exhaust manifold of an engine and can be incorporated directly therein.

    摘要翻译: 一种用于处理离开内燃机的废气的装置,其中用于气体的主流道被具有其中包含催化剂材料的轴向布置的处理室的另一通道围绕。 主流路设置有流量控制阀,该流量控制阀在低发动机转速下将基本上所有的废气转移到围绕主流道的外部通道,而在较高速度下,阀偏转并允许不断增加的量 废气通过主流路。 包含催化剂室的外部通道的主要流动通道和出口端同轴地布置并向内锥形,使得在装置的排放端处的通道存在气体混合。 该装置适于直接连接到发动机的排气歧管并且可以直接结合在其中。