Inlet system for a two cycle internal combustion engine
    1.
    发明授权
    Inlet system for a two cycle internal combustion engine 失效
    双循环内燃机进气系统

    公开(公告)号:US5638780A

    公开(公告)日:1997-06-17

    申请号:US609245

    申请日:1996-03-01

    摘要: In an inlet system for a two-cycle internal combustion engine which includes a cylinder with a piston reciprocating therein between a top dead center position and a bottom dead center position and in which at least two rows of scavenging air flow passages are arranged in separate flow planes around the cylinder adjacent the bottom dead center position of the piston which are closed by the piston when it is remote from the bottom dead center position, each of the separate flow planes includes independent air flow control components for independently controlling the admission of scavenging air to the scavenging air passages in the different flow planes.

    摘要翻译: 在用于两循环内燃机的进气系统中,该进气系统包括一气缸,其活塞在上止点和下止点之间往复运动,其中至少两排清扫气流通道分布在其中 邻近活塞的下止点位置处的气缸,当活塞远离下死点位置时,其活塞闭合,每个独立的流动平面包括独立的气流控制部件,用于独立地控制吸入空气的进入 到不同流动平面中的扫气通道。

    Internal combustion engine with direct fuel injection
    3.
    发明授权
    Internal combustion engine with direct fuel injection 失效
    具有直接燃油喷射的内燃机

    公开(公告)号:US5724937A

    公开(公告)日:1998-03-10

    申请号:US763081

    申请日:1996-12-10

    摘要: In an internal combustion engine with direct fuel injection having a piston disposed in a cylinder and a cylinder head which together define a combustion chamber, wherein a fuel injector is mounted in the cylinder head so as to inject fuel into the combustion chamber in a conical pattern whereby the fuel is mixed with combustion air to form a combustible mixture, the cylinder head has a shape around the conical fuel pattern which aids in providing combustible fuel/air mixture at least in an area adjacent the conical fuel pattern where a spark plug with electrodes is mounted such that its electrodes are disposed outside the conical fuel pattern.

    摘要翻译: 在具有直接燃料喷射的内燃机中,具有设置在气缸中的活塞和一起限定燃烧室的气缸盖,其中燃料喷射器安装在气缸盖中,以便以锥形图案将燃料喷射到燃烧室中 由此燃料与燃烧空气混合以形成可燃混合物,气缸盖具有围绕锥形燃料图案的形状,其有助于至少在邻近锥形燃料图案的区域中提供可燃燃料/空气混合物,其中具有电极的火花塞 被安装成使得其电极设置在锥形燃料图案之外。

    Method for increasing the safety of motor-vehicle occupants in the event of a crash
    4.
    发明授权
    Method for increasing the safety of motor-vehicle occupants in the event of a crash 有权
    发生碰撞时提高机动车辆乘客安全的方法

    公开(公告)号:US06223714B1

    公开(公告)日:2001-05-01

    申请号:US09399672

    申请日:1999-09-21

    IPC分类号: F02B7700

    CPC分类号: B60K28/14 B60R21/01

    摘要: Switching off a fuel pump of a fuel supply system for the internal combustion engine with the aid of a signal from a retardation sensor of the airbag in the event of a crash in which the motor vehicle is involved is known. To further enhance the safety of motor-vehicle occupants, a method is proposed for an internal combustion engine which has at least one fuel injection valve, a fuel supply system for the at least one fuel injection valve, and a sensor for detecting a crash. After the crash has been detected by means of the sensor, the fuel injection valve is brought into an open position, with the result that fuel is discharged from the fuel supply system of the fuel injection valve into a combustion chamber of the internal combustion engine. The method according to the invention is provided for internal combustion engines with at least one fuel injection valve.

    摘要翻译: 已知在涉及机动车辆的碰撞的情况下,借助于来自气囊的延迟传感器的信号,关闭用于内燃机的燃料供给系统的燃料泵。为了进一步提高安全性 机动车辆乘员提出了一种用于内燃机的方法,所述内燃机具有至少一个燃料喷射阀,用于至少一个燃料喷射阀的燃料供应系统和用于检测碰撞的传感器。 在通过传感器检测到碰撞之后,燃料喷射阀进入打开位置,结果是燃料从燃料喷射阀的燃料供给系统排出到内燃机的燃烧室中。 根据本发明的方法为具有至少一个燃料喷射阀的内燃机提供。

    Method and apparatus for nitrogen oxide emission of a direct injection
internal combustion engine
    5.
    发明授权
    Method and apparatus for nitrogen oxide emission of a direct injection internal combustion engine 失效
    直喷式内燃机氮氧化物排放的方法和装置

    公开(公告)号:US6003306A

    公开(公告)日:1999-12-21

    申请号:US953978

    申请日:1997-10-20

    摘要: Direct-injected engines often operate in broad characteristic field areas with stratified charging, with the harmful emissions not being sufficiently reducible by exhaust recirculation means. Nitrogen oxide molecules are not selectively catalytically reducible In oxygen-rich exhaust during stratified combustion; thus a storage catalytic converter is often located in the exhaust stream to adsorb the resultant nitrogen oxide molecules. In order to initiate desorption and reduction of stored nitrogen oxide molecules, a stoichiometric exhaust composition must be created for a certain operating interval. It was previously assumed that stoichiometric air ratios can only be attained with homogeneous carburetion, so that a switch is made to injection on the intake stroke from fuel injection on the compression stroke. In order to produce a method for reducing nitrogen oxide emissions from a direct-injected gasoline engine, which reduces nitrogen molecules during continuous stratified charging, provision is made to increase the exhaust gas circulation rate for the required operating interval, depending on the operating point of the engine, by a certain amount to create a stoichiometric exhaust composition before the adsorption capacity limit of the storage catalytic converter is reached.

    摘要翻译: 直喷式发动机通常在具有分层充气的广泛特征场地中运行,有害排放物不能通过排气再循环装置充分减少。 氮氧化物分子不是选择性催化还原在分层燃烧期间的富氧排气中; 因此,存储催化转化器通常位于排气流中以吸附所得到的氮氧化物分子。 为了启动储存的氮氧化物分子的解吸和还原,必须在一定的操作间隔内产生化学计量的排气组合物。 之前假设化学计量空气比仅能通过均匀的化油实现,从而在压缩行程上从燃料喷射开始在进气行​​程上进行喷射。 为了产生一种减少直接喷射的汽油发动机的氮氧化物排放的方法,其在连续分层充气期间减少氮分子,根据操作点的操作点提供增加所需操作间隔的废气循环速率 发动机,在达到储存催化转化器的吸附容量极限之前,一定量产生化学计量排气组成。

    Process for operating an Otto internal-combustion engine having an
internal mixture formation
    6.
    发明授权
    Process for operating an Otto internal-combustion engine having an internal mixture formation 失效
    用于操作具有内部混合物形成的奥托内燃机的方法

    公开(公告)号:US5941208A

    公开(公告)日:1999-08-24

    申请号:US964029

    申请日:1997-11-04

    摘要: Otto internal-combustion engines having one injector respectively per cylinder for the internal mixture formation can be operated at full load or high partial load by fuel injection in the suction stroke of the piston and, at medium or low partial load, with a compression stroke injection. The compression stroke injection, which is advantageous in this load range, because of low average combustion space temperatures and the tendency to form deposits in the combustion space because of residues of liquid fuel and the resulting impaired operating conditions, can partially be carried out only to a limited degree. In order to provide a process for operating an Otto internal-combustion engine of the above-mentioned type which permits an arbitrary operating period in the medium or low load range, it is provided that, in the operation of the internal-combustion engine with a compression stroke injection, as a function of the time or at least of an operating parameter, independently of the momentary load requirement, a change-over takes place to a suction stroke injection while simultaneously reducing the intake air quantity and, after the conclusion of a certain free-burning interval, a switching-back takes place into the operating mode with the compression stroke injection.

    摘要翻译: 具有分别用于内部混合物形成的每个气缸的一个喷射器的奥托内燃机可以在全负荷或高部分负荷下通过在活塞的吸入冲程中的燃料喷射以及在中等或低部分负荷下用压缩冲程喷射 。 由于平均燃烧空间温度低以及由于液体燃料的残留而导致在燃烧空间中形成沉积物的趋势以及由此导致的受损操作条件,在该负载范围中有利的压缩冲程喷射可以仅部分地被执行到 有限度 为了提供一种用于操作上述类型的奥托内燃机的方法,其允许在中等或低负载范围内的任意运行周期,条件是在内燃机的操作中具有 压缩冲程喷射,作为时间的函数或至少是操作参数,独立于瞬时负载要求,在吸入冲程喷射的同时进行转换,同时减少进气量,并且在结束后 某些自由燃烧的间隔,通过压缩冲程喷射进入操作模式。

    Two-stroke internal combustion engine
    7.
    发明授权
    Two-stroke internal combustion engine 失效
    二冲程内燃机

    公开(公告)号:US5479894A

    公开(公告)日:1996-01-02

    申请号:US272828

    申请日:1994-07-11

    摘要: In a two-stroke internal combustion engine with an engine block including a crankcase and a cylinder housing receiving pistons which are connected to a crankshaft by crosshead rods with crossheads guided for linear movement with the piston and a connecting rod extending between the crosshead and the crankshaft, wherein the cylinders have walls with inlet and outlet slits disposed above the bottom dead-center position of the piston and providing for communication between the cylinder and inlet and outlet channel structures formed in the cylinder housing around the pistons, the engine block consists of a cylinder housing and a crankcase joined along a dividing plane extending across the engine block below the lowest piston ring when the piston is in its bottom position and the cylinder housing includes channel structures which are open toward the dividing plane and have walls extending inwardly and have inner surfaces in engagement with the piston for guiding said piston and to form, with the piston skirt, the gas inlet and outlet channels through which gases are supplied to, and discharged from, the cylinder.

    摘要翻译: 在具有发动机缸体的二冲程内燃机中,发动机缸体包括曲轴箱和接收活塞的气缸壳体,活塞通过十字头连接到曲轴上,十字头引导与活塞直线运动,连杆在十字头和曲轴之间延伸 其中所述气缸具有壁,所述壁具有设置在所述活塞的下死点中心位置之上的入口和出口狭缝,并且提供所述气缸与形成在所述气缸壳体周围所述活塞的入口和出口通道结构之间的连通,所述发动机缸体由 气缸壳体和曲轴箱,当活塞处于其底部位置时,沿着最低活塞环下方延伸穿过发动机缸体的分隔平面连接的曲轴箱,并且气缸壳体包括朝向分隔平面敞开并具有向内延伸的内壁的通道结构 与活塞接合的表面,用于引导所述活塞并形成 h活塞裙部,气体进入和出口通道,气体通过气体进入和排出气缸。