Exhaust gas after-treatment having reduced rhodium depletion
    2.
    发明授权
    Exhaust gas after-treatment having reduced rhodium depletion 有权
    废气后处理减少了铑的消耗

    公开(公告)号:US08459003B2

    公开(公告)日:2013-06-11

    申请号:US12596716

    申请日:2008-04-01

    IPC分类号: F01N3/00

    摘要: In a method for the after-treating of an exhaust gas from a preferably direct-injection and/or spark-ignition internal combustion engine, the exhaust gas is fed through a catalytic converter system connected downstream of the internal combustion engine. The system has at least one catalyst with a noble metal depletion having at least the elements palladium and rhodium which are present in a weight ratio of >5:1, 6:1, 7:1, 8:1, 9:1, 10:1, 11:1, or 12:1. In the new European driving cycle, the catalyst exceeds a temperature TK of 300° C., 450° C., 550° C., 600° C. within a time interval of 30 s, preferably 20 s, especially preferably 10 s after starting the engine, and/or the cumulative untreated emissions of hydrocarbons not exceeding 0.05 g/km and/or of nitrogen oxides not exceeding 0.04 g/km within a time interval of 10 s, preferably 20 s, especially preferably 30 s after starting the engine, and/or the engine achieving at least the emissions limit values of EU standard 4, preferably EU standard 5.

    摘要翻译: 在从优选直接喷射和/或火花点火式内燃机对废气进行后处理的方法中,排气通过连接在内燃机下游的催化转化器系统进料。 该系统具有至少一种具有贵金属耗尽的催化剂,其具有至少元素钯和铑,其重量比为> 5:1,6:7,7:1,8:1,9:1,10 :1,11:1或12:1。 在新的欧洲驾驶循环中,催化剂在30秒,优选20秒,特别优选10秒的时间间隔内超过300℃,450℃,550℃,600℃的温度TK 起动发动机,和/或不超过0.05g / km的烃和/或不超过0.04g / km的氮氧化物的累积未经处理的排放物,在10秒,优选20秒,特别优选30秒的时间间隔内开始 发动机和/或发动机至少达到EU标准4,优选EU标准5的排放限值。

    Method of operating an internal combustion engine
    3.
    发明授权
    Method of operating an internal combustion engine 有权
    操作内燃机的方法

    公开(公告)号:US07853397B2

    公开(公告)日:2010-12-14

    申请号:US12627561

    申请日:2009-11-30

    IPC分类号: F02D41/00 F02B13/00

    摘要: A method relates to operating an internal combustion engine in the form of an Otto engine, especially of a motor vehicle. Otto engine fuel (i.e., carburetor fuel, spark ignition engine fuel), such as gasoline or ethanol (E85), are directly injected into at least one combustion chamber of the internal combustion engine with at least one fuel injector. Optionally, instead of injecting ignition spark engine fuel or in addition, the internal combustion engine is operated with gas, especially CNG (compressed natural gas) or LPG (liquefied petroleum gas). During operation of the internal combustion engine with gas only, the engine is automatically switched to the operation with spark ignition engine fuel for a predetermined period, or the engine is switched to the operation with spark ignition engine fuel in addition to the operation with gas, in such a manner that a predetermined quantity of the carburetor fuel flows through the at least one fuel injector. The engine is then automatically switched back to the operation with gas only.

    摘要翻译: 一种方法涉及以Otto发动机,特别是机动车辆的形式操作内燃机。 使用至少一个燃料喷射器将Otto发动机燃料(即化油器燃料,火花点火发动机燃料)(诸如汽油或乙醇)(E85)直接喷射到内燃机的至少一个燃烧室中。 可选地,不是注入点火火花发动机燃料,或者另外,内燃机用气体,特别是CNG(压缩天然气)或LPG(液化石油气))进行操作。 在仅具有气体的内燃机的运行中,发动机自动切换到具有火花点火发动机燃料的操作达预定时间段,或者除了具有气体的操作之外,发动机也切换到具有火花点火发动机燃料的操作, 使得预定量的化油器燃料流过至少一个燃料喷射器。 然后,发动机将自动切换回仅使用气体的操作。

    Method of operating an internal combustion engine
    4.
    发明授权
    Method of operating an internal combustion engine 有权
    操作内燃机的方法

    公开(公告)号:US07832381B2

    公开(公告)日:2010-11-16

    申请号:US12627243

    申请日:2009-11-30

    IPC分类号: F02M21/02 F02B3/00

    摘要: A method for operating an internal combustion engine in the form of an Otto engine, especially of a motor vehicle, selectively uses carburetor fuel, especially gasoline or ethanol (E85) by direct injection into at least one combustion chamber of the internal combustion engine by means of at least one fuel injector. Optionally, instead of injecting ignition spark engine fuel or in addition to injecting ignition spark engine fuel, the internal combustion engine is operated with gas, especially CNG (Compressed Natural Gas) or LPG (Liquefied Petroleum Gas). A mixture adaptation value is continuously determined during the operation of the internal combustion engine with spark ignition engine fuel. An actual mixture adaptation value is stored in a memory during the operation of the internal combustion engine with the spark ignition engine fuel and, after a predetermined minimum duration of operation with gas, an actual mixture adaptation value is compared with the stored mixture adaptation value during the operation of the internal combustion engine with ignition spark engine fuel. The fuel injectors are scavenged when a difference between the actual mixture adaptation value and the stored mixture adaptation value exceeds a predetermined difference value.

    摘要翻译: 用于操作奥托发动机,特别是机动车辆形式的内燃机的方法选择性地使用化油器燃料,特别是汽油或乙醇(E85),通过直接喷射到内燃机的至少一个燃烧室中 的至少一个燃料喷射器。 可选地,不是注入点火火花发动机燃料,或者除了喷射点火火花发动机燃料之外,内燃机也是用气体,特别是CNG(压缩天然气)或LPG(液化石油气))来运行的。 在具有火花点火发动机燃料的内燃机的运行期间连续地确定混合适应值。 在具有火花点火发动机燃料的内燃机运行期间,将实际的混合适应值存储在存储器中,并且在用气体运行预定的最小持续时间之后,将实际混合适应值与存储的混合适应值进行比较 具有点火火花发动机燃料的内燃机的运行。 当实际混合适应值与存储的混合适应值之间的差超过预定的差值时,燃料喷射器被清扫。

    METHOD OF OPERATING AN INTERNAL COMBUSTION ENGINE
    5.
    发明申请
    METHOD OF OPERATING AN INTERNAL COMBUSTION ENGINE 有权
    内燃机的运行方法

    公开(公告)号:US20100131178A1

    公开(公告)日:2010-05-27

    申请号:US12627561

    申请日:2009-11-30

    IPC分类号: F02D41/00 F02B13/00

    摘要: A method relates to operating an internal combustion engine in the form of an Otto engine, especially of a motor vehicle. Otto engine fuel (i.e., carburetor fuel, spark ignition engine fuel), such as gasoline or ethanol (E85), are directly injected into at least one combustion chamber of the internal combustion engine with at least one fuel injector. Optionally, instead of injecting ignition spark engine fuel or in addition, the internal combustion engine is operated with gas, especially CNG (compressed natural gas) or LPG (liquefied petroleum gas). During operation of the internal combustion engine with gas only, the engine is automatically switched to the operation with spark ignition engine fuel for a predetermined period, or the engine is switched to the operation with spark ignition engine fuel in addition to the operation with gas, in such a manner that a predetermined quantity of the carburetor fuel flows through the at least one fuel injector. The engine is then automatically switched back to the operation with gas only.

    摘要翻译: 一种方法涉及以Otto发动机,特别是机动车辆的形式操作内燃机。 使用至少一个燃料喷射器将Otto发动机燃料(即化油器燃料,火花点火发动机燃料)(诸如汽油或乙醇)(E85)直接喷射到内燃机的至少一个燃烧室中。 可选地,不是注入点火火花发动机燃料,或者另外,内燃机用气体,特别是CNG(压缩天然气)或LPG(液化石油气))进行操作。 在仅具有气体的内燃机的运行中,发动机自动切换到具有火花点火发动机燃料的操作达预定时间段,或者除了具有气体的操作之外,发动机也切换到具有火花点火发动机燃料的操作, 使得预定量的化油器燃料流过至少一个燃料喷射器。 然后,发动机将自动切换回仅使用气体的操作。

    METHOD OF OPERATING AN INTERNAL COMBUSTION ENGINE
    6.
    发明申请
    METHOD OF OPERATING AN INTERNAL COMBUSTION ENGINE 有权
    内燃机的运行方法

    公开(公告)号:US20100131177A1

    公开(公告)日:2010-05-27

    申请号:US12627243

    申请日:2009-11-30

    IPC分类号: F02D41/00 F02B13/00

    摘要: A method for operating an internal combustion engine in the form of an Otto engine, especially of a motor vehicle, selectively uses carburetor fuel, especially gasoline or ethanol (E85) by direct injection into at least one combustion chamber of the internal combustion engine by means of at least one fuel injector. Optionally, instead of injecting ignition spark engine fuel or in addition to injecting ignition spark engine fuel, the internal combustion engine is operated with gas, especially CNG (Compressed Natural Gas) or LPG (Liquefied Petroleum Gas). A mixture adaptation value is continuously determined during the operation of the internal combustion engine with spark ignition engine fuel. An actual mixture adaptation value is stored in a memory during the operation of the internal combustion engine with the spark ignition engine fuel and, after a predetermined minimum duration of operation with gas, an actual mixture adaptation value is compared with the stored mixture adaptation value during the operation of the internal combustion engine with ignition spark engine fuel. The fuel injectors are scavenged when a difference between the actual mixture adaptation value and the stored mixture adaptation value exceeds a predetermined difference value.

    摘要翻译: 用于操作奥托发动机,特别是机动车辆形式的内燃机的方法选择性地使用化油器燃料,特别是汽油或乙醇(E85),通过直接喷射到内燃机的至少一个燃烧室中 的至少一个燃料喷射器。 可选地,不是注入点火火花发动机燃料,或者除了喷射点火火花发动机燃料之外,内燃机也是用气体,特别是CNG(压缩天然气)或LPG(液化石油气))来运行的。 在具有火花点火发动机燃料的内燃机的运行期间连续地确定混合适应值。 在具有火花点火发动机燃料的内燃机运行期间,将实际的混合适应值存储在存储器中,并且在用气体运行预定的最小持续时间之后,将实际混合适应值与存储的混合适应值进行比较 具有点火火花发动机燃料的内燃机的运行。 当实际混合适应值与存储的混合适应值之间的差超过预定的差值时,燃料喷射器被清扫。

    METHOD AND DEVICE FOR INJECTING FUEL INTO A COMBUSTION CHAMBER
    8.
    发明申请
    METHOD AND DEVICE FOR INJECTING FUEL INTO A COMBUSTION CHAMBER 有权
    将燃料注入燃烧室的方法和装置

    公开(公告)号:US20140251274A1

    公开(公告)日:2014-09-11

    申请号:US14115832

    申请日:2012-04-26

    IPC分类号: F02M69/04

    摘要: When fuel is injected into a combustion chamber (2) of a cylinder (13) of an engine (30) of a vehicle (10), the fuel is injected in the form of multiple jets (3) with the aid of an injector (1). In this connection, a first plane is defined in which both the central axis (11) of the injector (1) and the central axis (12) of the cylinder (13) lie. Furthermore, a second plane is defined in which both the central axis (11) of the injector (1) and the surface normal of the first plane lie. The jets (3) are generated in such a way that for each jet pair, which is formed from two of the jets (3), an angle between the projections of the two central axes of the two jets of the jet pair into the second plane is smaller than 50°.

    摘要翻译: 当燃料被喷射到车辆(10)的发动机(30)的气缸(13)的燃烧室(2)中时,借助于喷射器(3)将燃料以多个喷嘴(3)的形式喷射 1)。 在这方面,限定了喷射器(1)的中心轴线(11)和气缸(13)的中心轴线(12)两者的第一平面。 此外,定义了第二平面,其中喷射器(1)的中心轴线(11)和第一平面的表面法线都位于其中。 喷射器(3)以这样的方式产生:对于由两个射流(3)形成的每个喷射对,将喷射对的两个喷嘴的两个中心轴的两个突起之间的角度设置成第二个 平面小于50°。

    Four-stroke internal combustion engine with direct injection
    9.
    发明授权
    Four-stroke internal combustion engine with direct injection 失效
    直喷式四冲程内燃机

    公开(公告)号:US06378486B1

    公开(公告)日:2002-04-30

    申请号:US09762123

    申请日:2001-03-01

    IPC分类号: F02B300

    摘要: The invention relates to a four stroke internal combustion engine with applied ignition, wherein fuel is directly injected into a combustion chamber by means of an injector. Said engine comprises at least one admission channel with an admission valve and at least one exhaust channel with an exhaust valve, the admission valve and the exhaust valve being placed on opposite sides of the combustion chamber and the injector being placed on the admission valve side. Said engine also comprises a cavity formed in a piston top. A piston exhibits a central longitudinal axis extending in the direction of displacement of said piston. The cavity is placed on the admission valve side and exhibits, relatively to said admission valve and the injector, a marginal area forming the highest point of the piston top so that an airflow originating in the appropriately designed admission channel and penetrating into the combustion chamber through the admission valve and an injection jet originating in the injector and penetrating into the combustion chamber enter the cavity at opposite points.

    摘要翻译: 本发明涉及一种具有应用点火的四冲程内燃机,其中通过喷射器将燃料直接喷射到燃烧室中。 所述发动机包括具有入口阀的至少一个进入通道和具有排气阀的至少一个排气通道,所述进气阀和排气阀被放置在所述燃烧室的相对侧上,并且所述喷射器被放置在所述入口阀侧。 所述发动机还包括形成在活塞顶部的空腔。 活塞表现出沿所述活塞位移方向延伸的中心纵向轴线。 空腔被放置在入口阀侧并且相对于所述入口阀和注射器呈现出形成活塞顶部最高点的边缘区域,使得源自适当设计的进入通道的气流并且穿过燃烧室通过 入口阀和源自喷射器并且穿透入燃烧室的喷射射流在相对的位置进入空腔。