ELECTRO-HYDRAULIC LOST-MOTION VALVE TRAIN
    1.
    发明申请
    ELECTRO-HYDRAULIC LOST-MOTION VALVE TRAIN 失效
    电动液压运动阀门火车

    公开(公告)号:US20060107914A1

    公开(公告)日:2006-05-25

    申请号:US10997464

    申请日:2004-11-24

    IPC分类号: F01L9/02

    摘要: An electro-hydraulic lost motion system for variable valve activation including a master piston and an accumulation piston in a first bore, defining a hydraulic pressure chamber therebetween, in response to rotation of an engine cam. A slave piston in the engine head and hydraulically connected to the pressure chamber opens and closes an engine valve. A servo-valve behind the accumulation piston controls the mobility of the accumulation piston via a fluid control chamber. When the control chamber is made hydraulically rigid, the system actuates the engine valve. When the control chamber is vented through the servo-valve, the accumulation piston is movable in lost motion, preventing the engine valve from opening. All intermediate degrees of valve opening are possible. Preferably, the servo-valve, control chamber, accumulation piston, and a control piston are comprehended in a modular subassembly which may be positioned adjacent the master piston or the slave piston.

    摘要翻译: 一种用于可变气门激活的电动液压失速运动系统,包括在第一孔中的主活塞和累积活塞,其响应于发动机凸轮的旋转而在其间限定液压室。 发动机头中的从动活塞并液压连接到压力室,打开和关闭发动机气门。 蓄积活塞后面的伺服阀通过流体控制室来控制蓄积活塞的移动性。 当控制室液压刚性时,系统启动发动机气门。 当控制室通过伺服阀排出时,累积活塞可以运动而运动,防止发动机阀门打开。 所有阀门开度的中等程度是可能的。 优选地,伺服阀,控制室,累积活塞和控制活塞包括在可以邻近主活塞或从动活塞定位的模块化子组件中。

    Method and apparatus for optimized combustion in an internal combustion engine utilizing homogeneous charge compression ignition and variable valve actuation
    2.
    发明申请
    Method and apparatus for optimized combustion in an internal combustion engine utilizing homogeneous charge compression ignition and variable valve actuation 失效
    利用均质充气压缩点火和可变气门致动在内燃机中优化燃烧的方法和装置

    公开(公告)号:US20060144356A1

    公开(公告)日:2006-07-06

    申请号:US11027109

    申请日:2004-12-30

    IPC分类号: F01L1/34

    摘要: A valvetrain system mechanization for an internal combustion engine using compression ignition, including homogeneous charge compression ignition, having two intake and one or more exhaust valves per cylinder. The valves are operated by dual overhead camshafts having two-step cams. The intake and exhaust camshafts are provided with phasers for varying the opening and closing of the intake and exhaust valves. A two-step roller finger follower is disposed for each valve between the cam lobes and the valve stem. The two sets of intake and exhaust valves are controlled by separate oil control valves. Swirl of gases may be introduced by mismatching the lifts of the valves. The valve opening times, closing times, lifts, fuel injection, compression ratio, and exhaust gas recirculation may be varied to optimize combustion conditions for a range of engine operating modes.

    摘要翻译: 用于使用压缩点火的内燃机的瓦楞纸机系统机械化,包括均质充气压缩点火,每个气缸具有两个进气口和一个或多个排气阀。 阀门由具有两级凸轮的双顶置凸轮轴操作。 进气和排气凸轮轴设置有用于改变进气门和排气门的打开和关闭的移相器。 为凸轮凸角和阀杆之间的每个阀设置两级辊指随动件。 两组进气和排气阀由独立的油控阀控制。 可能通过使阀的升降机不匹配来引入气体旋流。 可以改变阀打开时间,关闭时间,升降机,燃料喷射,压缩比和废气再循环,以优化发动机工作模式范围内的燃烧条件。

    Method and apparatus for optimized combustion in an internal combustion engine utilizing homogeneous charge compression ignition and variable valve actuation
    3.
    发明申请
    Method and apparatus for optimized combustion in an internal combustion engine utilizing homogeneous charge compression ignition and variable valve actuation 审中-公开
    利用均质充气压缩点火和可变气门致动在内燃机中优化燃烧的方法和装置

    公开(公告)号:US20080047509A1

    公开(公告)日:2008-02-28

    申请号:US11903729

    申请日:2007-09-24

    IPC分类号: F16D3/10

    摘要: A valvetrain system mechanization for an internal combustion engine using compression ignition, including homogeneous charge compression ignition, having two intake and one or more exhaust valves per cylinder. The valves are operated by dual overhead camshafts having two-step cams. The intake and exhaust camshafts are provided with phasers for varying the opening and closing of the intake and exhaust valves. A two-step roller finger follower is disposed for each valve between the cam lobes and the valve stem. The two sets of intake and exhaust valves are controlled by separate oil control valves. Swirl of gases may be introduced by mismatching the lifts of the valves. The valve opening times, closing times, lifts, fuel injection, compression ratio, and exhaust gas recirculation may be varied to optimize combustion conditions for a range of engine operating modes.

    摘要翻译: 一种使用压缩点火的内燃机的瓦楞纸系统机械化,包括均质充气压缩点火,每个气缸具有两个进气口和一个或多个排气阀。 阀门由具有两级凸轮的双顶置凸轮轴操作。 进气和排气凸轮轴设置有用于改变进气门和排气门的打开和关闭的移相器。 为凸轮凸角和阀杆之间的每个阀设置两级辊指随动件。 两组进气和排气阀由独立的油控阀控制。 可能通过使阀的升降机不匹配来引入气体旋流。 可以改变阀打开时间,关闭时间,升降机,燃料喷射,压缩比和废气再循环,以优化发动机工作模式范围内的燃烧条件。

    Process and system for improving combustion and exhaust aftertreatment of motor vehicle engines
    4.
    发明申请
    Process and system for improving combustion and exhaust aftertreatment of motor vehicle engines 失效
    改善汽车发动机燃烧和排气后处理的工艺和系统

    公开(公告)号:US20070180819A1

    公开(公告)日:2007-08-09

    申请号:US11348770

    申请日:2006-02-07

    IPC分类号: F01N3/00 F01N3/10

    摘要: A diesel combustion engine system providing improved fuel combustion and exhaust aftertreatment includes: a diesel combustion engine having a liquid fuel intake, an air intake, a reformate intake, and an exhaust outlet; a liquid diesel fuel source in fluid communication with the liquid fuel intake and an on-board catalytic partial oxidation fuel reformer that receives a supply of hydrogen-containing liquid diesel fuel and a supply of air and produces therefrom a hydrogen-rich reformate. An exhaust conduit in fluid communication with the exhaust outlet and the reformer includes a reformate conduit upstream from exhaust aftertreatment components. The system provides for supplying: under conditions of low engine load, reformate or a combination of liquid diesel fuel and reformate to the engine; under conditions of medium engine load, a combination of liquid diesel fuel and reformate to the engine; and, under conditions of high engine load, liquid diesel fuel only to the engine and reformate only to the exhaust conduit.

    摘要翻译: 提供改进的燃料燃烧和排气后处理的柴油机内燃机系统包括:具有液体燃料进口,进气口,重整油进口和排气出口的柴油机内燃机; 与液体燃料入口流体连通的液体柴油燃料源和接收含氢液体柴油燃料供应并由其产生富氢重整产物的车载催化部分氧化燃料重整器。 与排气出口和重整器流体连通的排气导管包括在排气后处理组件上游的重整产品导管。 该系统提供:在低发动机负荷条件下,将重整油或液态柴油与重整产品组合在发动机上; 在中等发动机负荷的条件下,将液态柴油和重整产品结合到发动机上; 而在发动机负荷高的条件下,液体柴油只能发动机并重新排放到排气管道。