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公开(公告)号：US20100326401A1
公开(公告)日：2010-12-30
申请号：US12827378
申请日：2010-06-30
IPC分类号： F02B17/00
CPC分类号： F02B17/00 , F02B69/02 , Y02T10/12 , Y02T10/128
摘要： A variable displacement engine comprises two engine modules fed from a common fuel source, each engine module having an individual crankshaft. The first engine module has a high compression ratio (e.g., greater than 13:1), while the second module has a typical compression ratio for a gasoline engine (e.g., between 9:1 and 11:1). In one embodiment, the first engine module operates through high efficiency optimized alcohol fuel combustion when the fuel content exceeds a minimum alcohol content. In an alternative embodiment, the first engine module operates at high efficiency through gasoline HCCI combustion when conditions permit. When operating conditions do not permit the first engine module to operate at high efficiency, the second engine module operates as the primary engine module, with the first engine module available to provide supplemental power (at less than optimal efficiency) if needed to meet driver demand.
摘要翻译： 可变排量发动机包括从共同燃料源供给的两个发动机模块，每个发动机模块具有单独的曲轴。 第一发动机模块具有高压缩比（例如大于13:1），而第二模块具有用于汽油发动机的典型压缩比（例如在9:1至11:1之间）。 在一个实施例中，当燃料含量超过最低酒精含量时，第一发动机模块通过高效优化的醇燃料燃烧进行操作。 在替代实施例中，当条件允许时，第一发动机模块通过汽油HCCI燃烧以高效率运行。 当操作条件不允许第一发动机模块以高效率运行时，第二发动机模块作为主要发动机模块运行，如果需要满足驾驶员需求，第一发动机模块可用于提供补充功率（不到最佳效率） 。
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公开(公告)号：US07681394B2
公开(公告)日：2010-03-23
申请号：US11389385
申请日：2006-03-24
申请人： David James Haugen
发明人： David James Haugen
CPC分类号： F02D41/0007 , F01N3/08 , F02B1/12 , F02B3/06 , F02B29/0406 , F02D9/04 , F02D41/0065 , F02D41/107 , F02D41/3035 , F02D2250/36 , F02M26/05 , F02M26/06 , F02M26/10 , F02M26/15 , F02M26/23 , F02M26/46 , Y02T10/128 , Y02T10/144 , Y02T10/47
摘要： Improved transient response times are obtained while maintaining low emissions with a low pressure EGR system through methods for quickly obtaining a desired oxygen concentration for charge-air to be used for combustion. Under a first method, fuel quantity in the main combustion event is controlled in the combustion process to produce exhaust around a relatively constant target exhaust oxygen concentration value. By keeping the exhaust oxygen concentration levels at a relatively constant value, lag time in waiting for low pressure EGR valve adjustments during transients may be avoided, and the system's air handling response to meet transients may be paced solely by adjusting the mass of air to be supplied (i.e. boost response). Under a second method, a multiple-stage combustion process is utilized, in which fuel feed is controlled in a small, preliminary HCCI-type combustion event in order to produce a target oxygen concentration of charge-air to be used for the second, main combustion event. Under a third method, exhaust rebreathing is used to produce a target oxygen concentration of charge-air to be used for combustion.
摘要翻译： 通过用于快速获得用于燃烧的充电 - 空气的期望氧浓度的方法，通过低压EGR系统维持低排放，获得了改进的瞬态响应时间。 在第一种方法中，在燃烧过程中控制主燃烧事件中的燃料量，以产生围绕相对恒定的目标排气氧浓度值的废气。 通过将废气氧浓度水平保持在相对恒定的值，可以避免在瞬变期间等待低压EGR阀调节的滞后时间，并且系统的满足瞬变的空气处理响应可以仅通过调节空气质量来调节 提供（即升压响应）。 在第二种方法中，利用多阶段燃烧过程，其中燃料供给被控制在小的初步HCCI型燃烧事件中，以便产生用于第二主燃料的燃料的目标氧浓度 燃烧事件。 在第三种方法中，使用排气再呼吸来产生用于燃烧的充电 - 空气的目标氧浓度。
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公开(公告)号：US08272356B2
公开(公告)日：2012-09-25
申请号：US12827378
申请日：2010-06-30
IPC分类号： F02B75/32
CPC分类号： F02B17/00 , F02B69/02 , Y02T10/12 , Y02T10/128
摘要： A variable displacement engine comprises two engine modules fed from a common fuel source, each engine module having an individual crankshaft. The first engine module has a high compression ratio (e.g., greater than 13:1), while the second module has a typical compression ratio for a gasoline engine (e.g., between 9:1 and 11:1). In one embodiment, the first engine module operates through high efficiency optimized alcohol fuel combustion when the fuel content exceeds a minimum alcohol content. In an alternative embodiment, the first engine module operates at high efficiency through gasoline HCCI combustion when conditions permit. When operating conditions do not permit the first engine module to operate at high efficiency, the second engine module operates as the primary engine module, with the first engine module available to provide supplemental power (at less than optimal efficiency) if needed to meet driver demand.
摘要翻译： 可变排量发动机包括从共同燃料源供给的两个发动机模块，每个发动机模块具有单独的曲轴。 第一发动机模块具有高压缩比（例如大于13:1），而第二模块具有用于汽油发动机的典型压缩比（例如在9:1至11:1之间）。 在一个实施例中，当燃料含量超过最低酒精含量时，第一发动机模块通过高效优化的醇燃料燃烧进行操作。 在替代实施例中，当条件允许时，第一发动机模块通过汽油HCCI燃烧以高效率运行。 当操作条件不允许第一发动机模块以高效率运行时，第二发动机模块作为主要发动机模块运行，如果需要满足驾驶员需求，第一发动机模块可用于提供补充功率（不到最佳效率） 。
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公开(公告)号：US08061121B2
公开(公告)日：2011-11-22
申请号：US12291076
申请日：2008-11-06
申请人： David James Haugen
发明人： David James Haugen
IPC分类号： F01N3/00
CPC分类号： F02D19/087 , F02D19/0665 , F02D19/084 , Y02T10/22 , Y02T10/36
摘要： A flex fuel internal combustion engine system includes means for sensing ethanol concentration of the fuel. If the ethanol concentration is determined to be above a given threshold, engine operation is adjusted for lean combustion of the fuel. An aftertreatment system is provided to remove harmful emissions from the exhaust.
摘要翻译： 柔性燃料内燃机系统包括用于检测燃料的乙醇浓度的装置。 如果乙醇浓度被确定为高于给定的阈值，则调节燃料的稀燃燃烧的发动机运行。 提供后处理系统以消除排气中的有害排放物。
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公开(公告)号：US20080135325A1
公开(公告)日：2008-06-12
申请号：US11999884
申请日：2007-12-07
CPC分类号： B62D5/0837 , B62D5/065
摘要： A center-closed power steering system provides power steering assistance in engine-off conditions for reduced fuel consumption. The power steering system includes a hydraulic pump mechanically driven by the engine, a high pressure accumulator, a steering gearbox fluidly connected to the accumulator, and a center closed valve mechanically connected to a driver-operated steering wheel. The valve is configured to selectively control flow of pressurized fluid from the accumulator to the steering gearbox to provide power steering assistance. The inner shaft of the rotary center-closed valve is provided with a cavity with V-shaped notches on the transition surfaces on lands configured to sealingly engage the inner surface of the valve outer sleeve, in order to provide a smooth transition in flow for power steering assistance, and a better driver feel.
摘要翻译： 中央关闭的动力转向系统在发动机关闭条件下提供动力转向辅助以减少燃料消耗。 动力转向系统包括由发动机机械驱动的液压泵，高压蓄能器，流体连接到蓄能器的转向齿轮箱，以及机械地连接到驾驶员操纵的方向盘的中心关闭阀。 阀被配置成选择性地控制加压流体从蓄能器到转向齿轮箱的流动，以提供动力转向辅助。 旋转中心关闭阀的内轴设置有在凸台上的过渡表面上具有V形凹口的空腔，其被构造成密封地接合阀外套筒的内表面，以便为动力流动提供平稳过渡 转向助力和更好的司机感觉。
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公开(公告)号：US20120000725A1
公开(公告)日：2012-01-05
申请号：US13232677
申请日：2011-09-14
IPC分类号： B62D5/06
CPC分类号： B62D5/0837 , B62D5/065
摘要： Motor vehicles are equipped with a center-closed power steering system to provide power steering assistance in engine-off conditions for reduced fuel consumption. The power steering system includes a hydraulic pump mechanically driven by the engine, a high pressure accumulator, a steering gearbox fluidly connected to the accumulator, and a center closed valve mechanically connected to a driver-operated steering wheel. The valve is configured to selectively control flow of pressurized fluid from the accumulator to the steering gearbox to provide power steering assistance.
摘要翻译： 机动车辆配备有中央关闭的动力转向系统，以在发动机关闭条件下提供动力转向辅助以减少燃料消耗。 动力转向系统包括由发动机机械驱动的液压泵，高压蓄能器，流体连接到蓄能器的转向齿轮箱，以及机械地连接到驾驶员操纵的方向盘的中心关闭阀。 阀被配置成选择性地控制加压流体从蓄能器到转向齿轮箱的流动，以提供动力转向辅助。
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公开(公告)号：US07644585B2
公开(公告)日：2010-01-12
申请号：US11174391
申请日：2005-07-01
申请人： David James Haugen
发明人： David James Haugen
IPC分类号： F02B33/44 , F02B37/013 , F02D23/00
CPC分类号： F02C6/12 , F01D9/026 , F01D17/141 , F01D17/143 , F01D17/146 , F01D17/165 , F02B29/083 , F02B37/001 , F02B37/004 , F02B37/013 , F02B37/025 , F02B37/18 , F02B37/183 , F02B37/22 , F02C3/13 , F02D9/06 , F02M26/08 , F02M26/10 , F02M26/23 , F05D2220/40 , Y02T10/144 , Y02T10/146
摘要： A multi-stage turbocharging system recovers exhaust energy that is conventionally lost in bypassing exhaust flow from one stage to another in a multi-stage turbocharging system. The exhaust energy is preserved through converting a portion of the exhaust energy of the bypassed flow from pressure to kinetic energy (velocity) by passing the bypassed flow through a VGT vane outlet or other variable geometry valve/nozzle, and then not allowing the accelerated flow to dissipate energy before reaching the subsequent stage's turbine wheel, where the accelerated flow may then be converted to a mechanical rotational force by the lower pressure turbine's wheel.
摘要翻译： 多级涡轮增压系统恢复在多级涡轮增压系统中通常在旁路排气流中从一级到另一级失去的排气能量。 通过将旁路流通过VGT叶片出口或其他可变几何形状的阀/喷嘴将旁路流的排气能量的一部分从压力转换为动能（速度）来保留废气能量，然后不允许加速流动 以在到达后续级的涡轮机叶轮之前耗散能量，其中加速流动然后可以被下压力涡轮机的转轮转换成机械旋转力。
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公开(公告)号：US06216668B1
公开(公告)日：2001-04-17
申请号：US09440923
申请日：1999-11-16
申请人： David James Haugen
发明人： David James Haugen
IPC分类号： F02D1304
CPC分类号： F02D13/04 , G01M15/044
摘要： An internal combustion engine includes a plurality of cylinders, a plurality of fuel injectors, compression brake units operatively associated the cylinders, an engine speed sensor and an engine control unit (ECU) for controlling the fuel injectors and the compression brake unit as a function of at least sensed engine speed. A method of measuring performance of the engine includes running the engine at a specified speed under no load, setting to zero a rate of fuel flow delivered by a selected one of the fuel injectors associated with one of the cylinders associated with the compression brake unit, increasing by a first amount a rate of fuel flow delivered by the other of the fuel injectors so that the engine runs at the specified engine speed, activating the compression brake unit associated with the selected fuel injector so that the cylinder associated therewith absorbs power, and again increasing by a second amount a rate of fuel flow delivered by the other of the fuel injectors so that the engine runs at the specified engine speed. This second amount of fuel flow rate increase thereby represents a performance characteristic of the engine.
摘要翻译： 内燃机包括多个气缸，多个燃料喷射器，与气缸可操作地相关联的压缩制动单元，发动机转速传感器和用于控制燃料喷射器和压缩制动单元的发动机控制单元（ECU），其作为 至少感测发动机转速。 一种测量发动机性能的方法包括以无负载的特定速度运行发动机，将由与压缩制动单元相关的一个气缸相关联的所选燃料喷射器所输送的燃料流量设定为零， 由第一量增加由另一个燃料喷射器输送的燃料流量，使得发动机以指定的发动机转速运行，启动与所选择的燃料喷射器相关联的压缩制动单元，使得与其相关联的气缸吸收动力，以及 再次增加另一个燃料喷射器所传送的燃料流量的速率，使得发动机以指定的发动机转速运转。 该第二量的燃料流量增加因此表示发动机的性能特征。
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公开(公告)号：US06213091B1
公开(公告)日：2001-04-10
申请号：US09528936
申请日：2000-03-21
申请人： David James Haugen
发明人： David James Haugen
IPC分类号： F02D1304
CPC分类号： F01L1/26 , F01L1/181 , F01L13/06 , F01L2105/00
摘要： An engine compression braking system includes an exhaust rocker arm pivotally supported on rocker shaft. One end of the rocker arm carries a roller which engages a camshaft which has a lost motion bump formed thereon. The other end of the rocker arm engages an exhaust valve stem assembly. A part of the rocker shaft engages a pressure operated piston. Extension of the piston moves the rocker shaft transversely to its axis, so that the rocker arm can selectively react to or ignore the lost motion portion bump. A pressure control system includes a solenoid operated valve controlled by an operator controlled switch, so that the piston selectively applies a light force or a very high force to the rocker arm rocker shaft, thus controlling the pivot point of the rocker arm.
摘要翻译： 发动机压缩制动系统包括枢转地支撑在摇臂上的排气摇臂。 摇臂的一端带有一个与凸轮轴接合的滚轮，该凸轮轴上形成有一个失去运动的凸块。 摇臂的另一端接合排气阀杆组件。 摇臂的一部分接合压力操作的活塞。 活塞的延伸将摇臂横向于其轴线移动，使得摇臂可以选择性地反应或忽略空转部分凸起。 压力控制系统包括由操作者控制的开关控制的电磁操作阀，使得活塞选择性地向摇臂摇臂轴施加轻力或非常高的力，从而控制摇臂的枢转点。
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公开(公告)号：US08387385B2
公开(公告)日：2013-03-05
申请号：US11173920
申请日：2005-07-01
CPC分类号： F02B37/183 , F01D17/14 , F02B37/004 , F02B37/013 , F02B37/18 , F02B37/22 , F05B2220/40 , F16K1/12 , F16K3/0209 , Y02T10/144
摘要： A turbocharger system includes first and second turbines arranged such that exhaust gas passes through the first turbine then the second turbine. A bypass channel is configured such that exhaust gas entering the channel passes only through the second turbine. A valve positioned in the bypass channel regulates the flow of gas therethrough. The valve accelerates a stream of gas and focuses the stream toward the second turbine such that a large part of the added velocity of the stream is preserved as it enters the second turbine. Operation of the valve may be controlled so as to maintain the valve in a closed position while exhaust gas pressure above the first turbine pressure is below a first threshold, to progressively open the valve as the pressure increases above the first threshold, and to maintain the valve in a full-open position while the pressure is above a second threshold.
摘要翻译： 涡轮增压器系统包括第一和第二涡轮机，其布置成使得废气通过第一涡轮，然后通过第二涡轮机。 旁通通道被配置成使得进入通道的废气仅通过第二涡轮。 位于旁路通道中的阀调节气体的流动。 阀加速气流并将流聚焦到第二涡轮机，使得流进入第二涡轮机时保留流的大部分附加速度。 可以控制阀的操作，以便在高于第一涡轮压力的排气压力低于第一阈值时将阀保持在关闭位置，以随着压力升高到高于第一阈值逐渐打开阀，并且保持阀 阀处于全开位置，同时压力高于第二阈值。
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