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    • 71. 发明申请
    • Equivalence ratio-based system for controlling transient fueling in an internal combustion engine
    • 用于控制内燃机瞬时加油的等效比系统
    • US20020100466A1
    • 2002-08-01
    • US09773068
    • 2001-01-31
    • Paul R. MillerChuan He
    • F02M007/00F02M051/00F02D041/00
    • F02D41/0062F02B29/0406F02B29/0493F02D41/0072F02D41/1454F02D41/187F02D2200/0411F02M26/05F02M26/23F02M26/33F02M26/47Y02T10/47
    • An equivalence ratio-based system for controlling transient engine fueling includes an engine controller responsive to a number of engine operating conditions to estimate a mass of oxygen trapped within a number of cylinders of an internal combustion engine. The engine controller is further operable to map current values of engine speed and commanded fueling to one of a number of predetermined maximum fuel-to-oxygen, or equivalence, ratio values (nullMAX). The engine controller is then operable to determine an oxygen/fuel control (OFC) limited fueling command (FOFCL) as a function of the estimated oxygen mass value and the maximum equivalence ratio, and to limit engine fueling based on the OFC limited fueling command FOFCL. In one embodiment, the engine controller is operable to fuel the engine according to a minimum of the OFC limited fueling command FOFCL and a default fueling command FDEF, although other fuel limiting strategies are contemplated.
    • 用于控制瞬时发动机燃料供应的基于等效比的系统包括响应于多个发动机操作条件的发动机控制器来估计在内燃机的多个气缸内捕获的氧气的质量。 发动机控制器还可操作以将发动机速度和指令燃料供应的当前值映射到多个预定的最大燃料 - 氧气或等效比值(& PHgr; MAX)中的一个。 然后,发动机控制器可操作以根据估计的氧质量值和最大当量比来确定氧/燃料控制(OFC)限制加油命令(FOFCL),并且基于OFC限制加油命令FOFCL来限制发动机加油 。 在一个实施例中,发动机控制器可操作以根据OFC限制加油命令FOFCL和默认加油命令FDEF的最小值来燃料发动机,尽管考虑了其他燃料限制策略。
    • 72. 发明申请
    • SYSTEM FOR CONTROLLING THE TEMPERATURE OF AN INTAKE AIR
    • 用于控制摄入空气温度的系统
    • US20020073977A1
    • 2002-06-20
    • US09742701
    • 2000-12-20
    • Mark W. CraigEric D. HardinTony G. Kertz
    • F02G005/00
    • B60K13/02F01P3/18F01P2003/185F01P2060/02F02B29/0418F02B29/0431F02B29/0456F02B29/0475F02B29/0493F02M26/04Y02T10/146
    • A vehicle operates under various ambient conditions and various operating parameters. To compensate for the ambient condition and the operating parameters an engine, an intake air temperature is controlled. One of an ambient air flow restriction system or an intake air flow restriction system is used to vary the flow of a recipient ambient air flow through an air to air or the flow of a donor intake air flow through the aftercooler respectively. A plurality of louvers are operatively moved between a closed position and an open position with the ambient air flow restriction system. And, a flapper valve is operatively moved between a closed position and an open position with the intake air flow restriction system. A controller interprets a respective signal from a plurality of sensors to define the position of the plurality of louvers or to define the position of the flapper valve.
    • 车辆在各种环境条件和各种操作参数下运行。 为了补偿发动机的环境条件和运行参数,控制进气温度。 使用环境空气流限制系统或进气流限制系统中的一个来改变接收器环境空气流通过空气到空气或者通过后冷器的供体进气流的流动。 多个百叶窗在环境空气流限制系统之间在关闭位置和打开位置之间可操作地移动。 并且,挡板阀在进气流限制系统中在关闭位置和打开位置之间操作地移动。 控制器解释来自多个传感器的相应信号以限定多个百叶窗的位置或限定挡板阀的位置。
    • 77. 发明申请
    • Controller and storage medium for detecting cold engine operation
    • 用于检测冷引擎运行的控制器和存储介质
    • US20010018632A1
    • 2001-08-30
    • US09829090
    • 2001-04-09
    • DETROIT DIESEL CORPORATION
    • Eric D. Thomas
    • G06G007/70G06F019/00F02M051/00
    • F02D41/064F01P7/048F01P7/12F01P7/164F01P7/167F01P2025/08F01P2025/13F01P2025/42F01P2060/02F02B29/0443F02B29/0493Y02T10/146
    • An engine controller and computer readable storage medium for detecting cold engine operation include determining at least two fluid temperatures and providing an output signal based on the at least two temperatures. Preferably, an engine coolant temperature, an intercooler temperature, and an engine air temperature are determined via appropriate temperature sensors. In one embodiment, the cold engine output signal is activated or asserted if any one of the at least two fluid temperatures is below a corresponding temperature threshold. The cold engine output signal is deactivated when all of the fluid temperatures are above corresponding temperature thresholds (plus hysteresis where applicable). An optional user-selectable parameter provides for actuation of the cold engine output only during idle. The cold engine output signal may be used to control various accessories including coolant heating systems, shutters, or the like. Additional parasitic loads or an exhaust brake may be actuated to increase combustion temperatures by increasing engine load to reduce or eliminate white smoke.
    • 用于检测冷发动机操作的发动机控制器和计算机可读存储介质包括确定至少两个流体温度并基于所述至少两个温度提供输出信号。 优选地,通过适当的温度传感器确定发动机冷却剂温度,中间冷却器温度和发动机空气温度。 在一个实施例中,如果所述至少两个流体温度中的任何一个低于相应的温度阈值,则所述冷发动机输出信号被激活或断言。 当所有流体温度高于相应的温度阈值(如果适用)时加上滞后),冷启动器输出信号被停用。 可选的用户可选参数仅在空转期间提供冷引擎输出的启动。 冷发动机输出信号可用于控制各种附件,包括冷却剂加热系统,百叶窗等。 可以通过增加发动机负荷来致动附加的寄生负载或排气制动器来增加燃烧温度以减少或消除白烟。
    • 79. 发明授权
    • Nitrogen oxides reducing aftercooler for turbocharged engines
    • 用于涡轮增压发动机的氮氧化物减少后冷器
    • US6138647A
    • 2000-10-31
    • US175883
    • 1998-10-20
    • Charles J. PackardPeter Moliterno
    • Charles J. PackardPeter Moliterno
    • F02B3/06F02B29/04F02B37/00F02B47/02F02M25/028F02M33/00
    • F02M33/00F02B29/0468F02B29/0481F02B47/02F02M25/0225F02M25/025F02M25/028F02B29/0493F02B3/06F02B37/00F02M25/0222Y02T10/121Y02T10/146
    • An aftercooler apparatus that is connected to a turbocharger and to a reciprocating engine has a primary and a secondary saturation chamber, and a drying chamber. Turbocharged air from the turbocharger is directed into the primary saturation chamber. The incoming air is initially mixed with and cooled by water located at the bottom of the primary saturation chamber before being directed through a diffusion screen. The air exiting the diffusion screen enters the secondary saturation chamber where intense bubbling and foaming increases the air-water contact area to further cool the air and form an air-water mixture approaching the temperature and moisture level of saturation. The air-water mixture is then directed into the drying chamber where a majority of the moisture is removed from the air through the use of centrifugal force. The now cooler moist air is directed toward the engine intake manifold, whereby the moisture in the air stream acts to reduce the NOx formation during the combustion process. The aftercooler apparatus acts to reduce the formation of NOx emissions from turbocharged engines rather than attempting to remove the NOx emissions from the exhaust stream of the engines. The aftercooler apparatus may also be used to beneficially recycle industrial waste waters.
    • 连接到涡轮增压器和往复式发动机的后冷却器装置具有初级和次级饱和室以及干燥室。 来自涡轮增压器的涡轮增压空气被引导到主饱和室。 进入的空气在被引导通过扩散屏幕之前,最初与位于主饱和室底部的水混合并冷却。 离开扩散屏幕的空气进入次级饱和室,其中强烈的起泡和发泡增加了空气 - 水接触面积,以进一步冷却空气并形成接近饱和度的温度和湿度水平的空气 - 水混合物。 然后将空气 - 水混合物引入干燥室,其中大部分水分通过使用离心力从空气中除去。 现在更冷的潮湿空气被引导到发动机进气歧管,由此空气流中的水分起作用以减少燃烧过程中的NOx形成。 后冷却器装置用于减少来自涡轮增压发动机的NOx排放的形成,而不是试图从发动机的废气流中去除NOx排放物。 后冷器装置也可用于有益地回收工业废水。