Method for reducing diesel engine emissions, and diesel engine
    61.
    发明授权
    Method for reducing diesel engine emissions, and diesel engine 有权
    减少柴油机排放的方法和柴油发动机

    公开(公告)号:US08528329B2

    公开(公告)日:2013-09-10

    申请号:US12747910

    申请日:2008-01-08

    IPC分类号: F02B33/44

    摘要: A method for controlling emissions during low-load diesel engine operation is provided. The engine includes at least one piston movable in a cylinder between a top dead center and a bottom dead center position, a fuel injector for injecting fuel into the cylinder, and a variable geometry turbine through which exhaust from the engine is adapted to flow. According to the method, the engine is operated at low load, NOx emissions are measured at an exhaust of the engine, and a variable geometry turbine inlet opening size is controlled responsive to NOx emissions measurements so that NOx emission levels are controlled.

    摘要翻译: 提供了一种在低负荷柴油发动机运转时控制排放的方法。 该发动机包括至少一个可在上止点和下死点之间的气缸中移动的活塞,用于将燃料喷射到气缸中的燃料喷射器以及来自发动机的排气适于流动的可变几何涡轮机。 根据该方法,发动机在低负载下运行,在发动机的排气处测量NOx排放,并且响应于NOx排放测量来控制可变几何涡轮机入口开口尺寸,从而控制NOx排放水平。

    Piston Assembly Including A Polymer Coating With Hard Particles Applied to Sliding Surfaces
    62.
    发明申请
    Piston Assembly Including A Polymer Coating With Hard Particles Applied to Sliding Surfaces 有权
    活塞组件包括用于滑动表面的硬质颗粒的聚合物涂层

    公开(公告)号:US20130220115A1

    公开(公告)日:2013-08-29

    申请号:US13661597

    申请日:2012-10-26

    IPC分类号: F16J1/00

    摘要: A piston assembly comprises a piston body, a connecting rod, and a wrist pin. The piston body includes a pair of first cross bores presenting a piston sliding surface. The connecting rod includes a second cross bore presenting a rod sliding surface which is axially aligned with the first cross bores of the piston body. A wrist pin is disposed in the aligned cross bores and couples the piston body to the connecting rod. The wrist pin also presents a pin sliding surface facing the rod sliding surface and the piston sliding surfaces. A coating is applied to at least one of the sliding surfaces, such as by dipping, brushing, atomizing, spraying, printing, or screen printing. The coating includes a polymer matrix, such as polyamide imide (PAI), and hard particles, such as Fe2O3, disposed throughout the polymer matrix. The hard particles have a hardness of at least 600 HV/0.5.

    摘要翻译: 活塞组件包括活塞体,连杆和腕针。 活塞主体包括呈现活塞滑动表面的一对第一十字孔。 连杆包括具有杆状滑动表面的第二横向孔,其与活塞体的第一十字孔轴向对准。 一个腕销设置在对齐的十字孔中,并将活塞体连接到连接杆上。 腕针还具有面向杆滑动表面和活塞滑动表面的销滑动表面。 例如通过浸渍,刷涂,雾化,喷涂,印刷或丝网印刷,将涂层施加到至少一个滑动表面。 涂层包括聚合物基质,例如聚酰胺酰亚胺(PAI),以及整个聚合物基质中的硬质颗粒,例如Fe 2 O 3。 硬颗粒具有至少600HV / 0.5的硬度。

    DILUTION OF THE GAS IN AN INTAKE MANIFOLD BY WATER INJECTION
    63.
    发明申请
    DILUTION OF THE GAS IN AN INTAKE MANIFOLD BY WATER INJECTION 有权
    通过水喷射在吸入口中的气体的稀释

    公开(公告)号:US20130206100A1

    公开(公告)日:2013-08-15

    申请号:US13759775

    申请日:2013-02-05

    IPC分类号: F02B47/02

    摘要: Systems and methods for reducing NOx emissions are provided, comprising: adjusting an amount of water injected into an intake manifold responsive to an oxygen concentration, temperature and pressure in the intake manifold; and heating the injected water if humidity is higher than a threshold. Water injected into the intake manifold decreases the temperature of, and dilutes the oxygen content of intake gases thereby decreasing NOx emissions.

    摘要翻译: 提供了用于减少NOx排放的系统和方法,包括:响应于进气歧管中的氧浓度,温度和压力来调节喷射到进气歧管中的水量; 并且如果湿度高于阈值,则加热注入的水。 注入进气歧管的水降低了进气的温度,并且稀释了进气的氧含量,从而减少了NOx排放。

    Diesel fuel additive
    64.
    发明授权
    Diesel fuel additive 有权
    柴油燃料添加剂

    公开(公告)号:US08475541B2

    公开(公告)日:2013-07-02

    申请号:US12815033

    申请日:2010-06-14

    IPC分类号: C10L1/22

    摘要: A diesel fuel additive composition, a fuel containing the fuel additive, a method for improving diesel engine performance using the additive and a method for making the additive for diesel engines having a high pressure fuel injection system. The fuel additive has a number average molecular weight (Mn) of from about 500 to about 10,000 and is selected from a hydrocarbyl-substituted succinic acid or anhydride or derivative thereof and a hydrocarbyl-substituted Mannich base. The additive has a molecular weight distribution such that less than about 25 wt. % of the additive has a molecular weight of 400 or less as measured by gel permeation chromatography (GPC) based on a polystyrene calibration curve.

    摘要翻译: 柴油燃料添加剂组合物,含有燃料添加剂的燃料,使用该添加剂改善柴油机性能的方法以及制备具有高压燃料喷射系统的柴油发动机添加剂的方法。 燃料添加剂的数均分子量(Mn)为约500至约10,000,并且选自烃基取代的琥珀酸或其酸酐或其衍生物和烃基取代的曼尼希碱。 该添加剂的分子量分布小于约25wt。 %的添加剂通过基于聚苯乙烯校准曲线的凝胶渗透色谱(GPC)测量的分子量为400或更小。

    ENGINE UTILIZING A PLURALITY OF FUELS, AND A RELATED METHOD THEREOF
    65.
    发明申请
    ENGINE UTILIZING A PLURALITY OF FUELS, AND A RELATED METHOD THEREOF 有权
    发动机利用多种燃料,及其相关方法

    公开(公告)号:US20130133616A1

    公开(公告)日:2013-05-30

    申请号:US13306542

    申请日:2011-11-29

    IPC分类号: F02M43/00

    摘要: At least one donor cylinder is coupled to an intake manifold. The intake manifold is configured to feed a mixture of air and a first fuel, or a mixture of air, the first fuel, and a second fuel to the at least one donor cylinder. At least one non-donor cylinder is coupled to the intake manifold and an exhaust manifold. The intake manifold is further configured to feed air, or a mixture of air and the second fuel to the at least one non-donor cylinder. An exhaust channel extend from the at least one donor cylinder to the intake manifold for recirculating an exhaust emission from the at least one donor cylinder to the at least one donor, and non-donor cylinders via the intake manifold.

    摘要翻译: 至少一个供体气缸联接到进气歧管。 进气歧管被构造成将空气和第一燃料或空气混合物,第一燃料和第二燃料的混合物供给到至少一个供体气缸。 至少一个非供体气缸联接到进气歧管和排气歧管。 进气歧管还被构造成将空气或空气和第二燃料的混合物供给至少一个非供体气缸。 排气通道从至少一个供体圆筒延伸到进气歧管,用于将来自至少一个供体圆筒的废气排放物再循环到至少一个供体以及经由进气歧管的非供体气缸。

    Compression Ignition Engine Having Fuel System For Non-Sooting Combustion And Method
    68.
    发明申请
    Compression Ignition Engine Having Fuel System For Non-Sooting Combustion And Method 有权
    具有燃油系统的非点燃燃烧和方法的压燃式发动机

    公开(公告)号:US20120318233A1

    公开(公告)日:2012-12-20

    申请号:US13162652

    申请日:2011-06-17

    IPC分类号: F02B3/06 F02B3/08

    摘要: A direct injection compression ignition internal combustion engine includes a fuel system having a nozzle extending into a cylinder of the engine and a plurality of spray orifices formed in the nozzle. Each of the spray orifices has an inner diameter dimension of about 0.09 mm or less, and define inter-orifice angles between adjacent spray orifice center axes of about 36° or greater such that spray plumes of injected fuel from each of the spray orifices combust within the cylinder according to a non-sooting lifted flame and gas entrainment combustion pattern. Related methodology is also disclosed.

    摘要翻译: 直喷式压燃式内燃机包括具有延伸到发动机的气缸中的喷嘴和形成在喷嘴中的多个喷孔的燃料系统。 每个喷孔具有约0.09mm或更小的内径尺寸,并且限定相邻喷孔中心轴之间的约36°或更大的孔间角度,使得来自每个喷射孔的喷射燃料的喷射羽流在 气缸根据非烟炱提升火焰和气体夹带燃烧模式。 还公开了相关方法。

    Exhaust gas cleaning system for construction machine
    70.
    发明授权
    Exhaust gas cleaning system for construction machine 有权
    建筑机械废气净化系统

    公开(公告)号:US08250858B2

    公开(公告)日:2012-08-28

    申请号:US12523810

    申请日:2008-08-06

    IPC分类号: F01N3/18

    摘要: Before a large amount of PM is deposited in a filter 32, an exhaust gas cleaning system for a construction machine regenerates the filter to avoid a decrease in output due to the exhaust gas pressure rise occurring immediately before the filter is regenerated, and to reduce the likelihood of unusual increases in the internal temperature of the filter due to the combustion of the PM, associated with the execution of the regeneration, and consequential thermal damage to the filter. If a value of a differential pressure across the filter 32 is greater than a predetermined pressure, a controller 4 conducts engine speed control to a predetermined rotating speed Na suitable for the regeneration, then enters forced regeneration automatically, and burns off the PM. When the sensed differential pressure decreases below a predetermined pressure, the regeneration is terminated automatically and the engine 1 is stopped.

    摘要翻译: 在大量的PM沉积在过滤器32中之前,用于建筑机器的废气净化系统使过滤器再生,以避免由于在过滤器再生之前发生的废气压力上升而导致的输出减少,并且减少 由于与执行再生有关的PM的燃烧引起的过滤器的内部温度的异常升高的可能性以及对过滤器的相应的热损伤。 如果过滤器32两端的差压值大于规定的压力,则控制器4将发动机转速控制为适合于再生的规定转速Na,然后自动进入强制再生,并使PM燃烧。 当感测到的压差降低到预定压力以下时,再生自动终止,发动机1停止。