APPARATUS AND SYSTEM FOR EFFICIENTLY RECIRCULATING AN EXHAUST GAS IN A COMBUSTION ENGINE
    1.
    发明申请
    APPARATUS AND SYSTEM FOR EFFICIENTLY RECIRCULATING AN EXHAUST GAS IN A COMBUSTION ENGINE 审中-公开
    用于在燃烧发动机中有效地再循环排气的装置和系统

    公开(公告)号:WO2009088948A2

    公开(公告)日:2009-07-16

    申请号:PCT/US2008/088674

    申请日:2008-12-31

    CPC classification number: F02M26/19 F02M26/21

    Abstract: An apparatus and system are disclosed for efficiently recirculating an exhaust gas in a combustion engine. The apparatus (100) includes an intake air conduit (204) that accepts and promotes mixing of an intake air stream (112) and an EGR stream (107). The intake air stream moves in the direction of the axis of the intake air conduit. The EGR stream enters the intake air conduit within a volute (205) of decreasing area curled about the outside circumference of the intake air stream. The rate at which the volute encourages mixing of the EGR stream with the intake air stream is affected by the rate at which the volute's area decreases as the volute curls about the inside circumference of the intake air conduit, and by the angle of entry (212) for the EGR stream as directed by the volute.

    Abstract translation: 公开了一种用于有效地使内燃机中的废气再循环的装置和系统。 装置(100)包括进气管道(204),其接收并促进进气流(112)和EGR流(107)的混合。 进气流沿着进气管道的轴线方向移动。 EGR流在卷绕进气流的外周的减小面积的蜗壳(205)内进入进气管道。 蜗壳促使EGR流与进气流混合的速率受蜗壳面积随着蜗壳围绕进气导管的内圆周卷曲而减小的速率以及进入角度(212 )用于涡流引导的EGR流。

    APPARATUS, SYSTEM, AND METHOD FOR PREVENTING TURBOCHARGER OVERSPEED IN A COMBUSTION ENGINE
    2.
    发明申请
    APPARATUS, SYSTEM, AND METHOD FOR PREVENTING TURBOCHARGER OVERSPEED IN A COMBUSTION ENGINE 审中-公开
    用于防止在燃烧发动机中过载的涡轮膨胀机的装置,系统和方法

    公开(公告)号:WO2009039511A1

    公开(公告)日:2009-03-26

    申请号:PCT/US2008/077256

    申请日:2008-09-22

    Abstract: An apparatus, system, and method are disclosed for preventing turbocharger overspeed in a combustion engine (102). The method includes determining (602) a turbocharger error term (202) as a difference between a nominal turbocharger maximum speed (206) and a current turbocharger speed. The method further includes determining (604) a turbocharger speed derivative with respect to time (204). The method includes calculating (606) a turbocharger control response based on the turbocharger error term (202) and the turbocharger speed derivative with respect to time (204). The turbocharger control response (210) may be a modified turbocharger maximum speed (210A) calculated by determining a reference speed multiplier based on the turbocharger error term (202) and the turbocharger speed derivative with respect to time (204), and multiplying the reference speed multiplier by the nominal turbocharger maximum speed (206). The method thereby smoothly anticipates turbocharger transient events, and prevents an overspeed condition of the turbocharger.

    Abstract translation: 公开了一种用于防止内燃机(102)中的涡轮增压器超速的装置,系统和方法。 该方法包括将涡轮增压器误差项(202)确定为(102)作为额定涡轮增压器最大速度(206)与当前涡轮增压器速度之间的差。 该方法还包括相对于时间(204)确定(604)涡轮增压器速度导数。 该方法包括基于涡轮增压器误差项(202)和相对于时间(204)的涡轮增压器速度导数来计算(606)涡轮增压器控制响应。 涡轮增压器控制响应(210)可以是通过基于涡轮增压器误差项(202)和相对于时间(204)的涡轮增压器速度导数确定参考速度乘数而计算的修改的涡轮增压器最大速度(210A),并且将参考 速度乘数由额定涡轮增压器最大速度(206)。 因此,该方法平滑地预期涡轮增压器瞬态事件,并且防止涡轮增压器的超速状况。

    VIRTUAL TURBINE SPEED SENSOR
    4.
    发明申请
    VIRTUAL TURBINE SPEED SENSOR 审中-公开
    虚拟涡轮速度传感器

    公开(公告)号:WO2010008848A2

    公开(公告)日:2010-01-21

    申请号:PCT/US2009048302

    申请日:2009-06-23

    Abstract: According to one exemplary embodiment, a virtual turbine speed sensor for a multi-stage turbocharger system (180) is disclosed. The multi-stage turbocharger system includes at least two sequential turbochargers (181, 182) each having a compressor (184, 186) and a turbine (183, 185). The virtual turbine speed sensor includes a compressor efficiency module (220) configured to estimate an efficiency of a first compressor of the at least two turbochargers, an inter-stage air temperature module (230) configured to estimate an inter-stage temperature of air between the at least two compressors, and a turbine speed module (240) configured to estimate a speed of a second turbine of the at least two turbochargers. The inter-stage temperature estimate of air is based at least partially on the efficiency of the first compressor and the speed estimate of the second turbine is based at least partially on the inter-stage air temperature estimate.

    Abstract translation: 根据一个示例性实施例,公开了一种用于多级涡轮增压器系统(180)的虚拟涡轮速度传感器。 多级涡轮增压器系统包括至少两个连续的涡轮增压器(181,182),每个涡轮增压器具有压缩机(184,186)和涡轮机(183,185)。 虚拟涡轮速度传感器包括被配置为估计至少两个涡轮增压器的第一压缩机的效率的压缩机效率模块(220),被配置成估计在至少两个涡轮增压器之间的空气的阶段间温度的级间空气温度模块 所述至少两个压缩机以及被配置为估计所述至少两个涡轮增压器的第二涡轮机的速度的涡轮机速度模块(240)。 空气的阶段间温度估计至少部分地基于第一压缩机的效率,并且第二涡轮机的速度估计至少部分地基于级间空气温度估计。

    VIRTUAL TURBINE SPEED SENSOR
    7.
    发明申请
    VIRTUAL TURBINE SPEED SENSOR 审中-公开
    虚拟涡轮速度传感器

    公开(公告)号:WO2010008848A9

    公开(公告)日:2010-05-06

    申请号:PCT/US2009048302

    申请日:2009-06-23

    Abstract: According to one exemplary embodiment, a virtual turbine speed sensor for a multi-stage turbocharger system (180) is disclosed. The multi-stage turbocharger system includes at least two sequential turbochargers (181, 182) each having a compressor (184, 186) and a turbine (183, 185). The virtual turbine speed sensor includes a compressor efficiency module (220) configured to estimate an efficiency of a first compressor of the at least two turbochargers, an inter-stage air temperature module (230) configured to estimate an inter-stage temperature of air between the at least two compressors, and a turbine speed module (240) configured to estimate a speed of a second turbine of the at least two turbochargers. The inter-stage temperature estimate of air is based at least partially on the efficiency of the first compressor and the speed estimate of the second turbine is based at least partially on the inter-stage air temperature estimate.

    Abstract translation: 根据一个示例性实施例,公开了一种用于多级涡轮增压器系统(180)的虚拟涡轮转速传感器。 多级涡轮增压器系统包括各自具有压缩机(184,186)和涡轮机(183,185)的至少两个顺序涡轮增压器(181,182)。 所述虚拟涡轮转速传感器包括:压缩机效率模块(220),其被配置为估计所述至少两个涡轮增压器中的第一压缩机的效率;级间空气温度模块(230),其被配置为估计所述至少两个涡轮增压器之间的空气的级间温度 所述至少两个压缩机以及配置成估计所述至少两个涡轮增压器中的第二涡轮的速度的涡轮速度模块(240)。 空气的级间温度估计至少部分基于第一压缩机的效率并且第二涡轮机的速度估计至少部分基于级间空气温度估计。

    APPARATUS, SYSTEM, AND METHOD FOR UTILIZING A DIESEL AFTER TREATMENT DEVICE BETWEEN THE HIGH PRESSURE AND LOW PRESSURE TURBINE STAGES OF A TWO-STAGE TURBOCHARGING SYSTEM
    9.
    发明申请
    APPARATUS, SYSTEM, AND METHOD FOR UTILIZING A DIESEL AFTER TREATMENT DEVICE BETWEEN THE HIGH PRESSURE AND LOW PRESSURE TURBINE STAGES OF A TWO-STAGE TURBOCHARGING SYSTEM 审中-公开
    在两级涡轮增压系统的高压和低压涡轮级之间利用柴油后处理装置的设备,系统和方法

    公开(公告)号:WO2009091835A3

    公开(公告)日:2009-10-08

    申请号:PCT/US2009031012

    申请日:2009-01-14

    Abstract: An apparatus, system, and method are disclosed for utilizing a diesel aftertreatment device (112) between the high pressure (110) and low pressure turbine stages (116) of a two-stage turbocharging system (100). The diesel aftertreatment device is connected in series between the high pressure turbine and the low pressure turbine such that the diesel aftertreatment device receives inflow from the high pressure turbine and provides outflow (114) to the low pressure turbine. A bypass mechanism (106) is provided such that at low engine speeds or loads, engine exhaust (104) flows through the high pressure turbine as well as the diesel aftertreatment device, but at high engine speeds or loads, the high pressure turbine and diesel aftertreatment device are bypassed, thereby allowing the engine (102) to operate more efficiently while still effectively removing pollutants from the engine exhaust.

    Abstract translation: 公开了一种在两级涡轮增压系统(100)的高压(110)和低压涡轮机级(116)之间利用柴油机后处理装置(112)的设备,系统和方法。 柴油后处理装置串联连接在高压涡轮和低压涡轮之间,使得柴油后处理装置接收来自高压涡轮的流入并且向低压涡轮提供流出(114)。 提供旁路机构(106),使得在低发动机速度或负载下,发动机排气(104)流过高压涡轮以及柴油后处理装置,但是在高发动机速度或负载下,高压涡轮和柴油 后处理装置被旁路,从而允许发动机(102)更有效地运转,同时仍然有效地从发动机排气中去除污染物。

    APPARATUS AND SYSTEM FOR EFFICIENTLY RECIRCULATING AN EXHAUST GAS IN A COMBUSTION ENGINE
    10.
    发明申请
    APPARATUS AND SYSTEM FOR EFFICIENTLY RECIRCULATING AN EXHAUST GAS IN A COMBUSTION ENGINE 审中-公开
    在燃烧发动机中有效回收排气的装置和系统

    公开(公告)号:WO2009088948A3

    公开(公告)日:2009-10-01

    申请号:PCT/US2008088674

    申请日:2008-12-31

    CPC classification number: F02M26/19 F02M26/21

    Abstract: An apparatus and system are disclosed for efficiently recirculating an exhaust gas in a combustion engine. The apparatus (100) includes an intake air conduit (204) that accepts and promotes mixing of an intake air stream (112) and an EGR stream (107). The intake air stream moves in the direction of the axis of the intake air conduit. The EGR stream enters the intake air conduit within a volute (205) of decreasing area curled about the outside circumference of the intake air stream. The rate at which the volute encourages mixing of the EGR stream with the intake air stream is affected by the rate at which the volute's area decreases as the volute curls about the inside circumference of the intake air conduit, and by the angle of entry (212) for the EGR stream as directed by the volute.

    Abstract translation: 公开了一种用于在内燃机中有效地再循环废气的装置和系统。 装置(100)包括接纳和促进进气流(112)和EGR流(107)的混合的进气导管(204)。 进气流沿进气导管的轴线方向移动。 EGR流在进气流的外圆周卷曲的减小面积的蜗壳(205)内进入进气导管。 涡流促进EGR流与进气流混合的速率受涡卷面积减小的速率的影响,蜗壳的面积围绕吸气管道的内圆周卷曲,并且进入角度(212 )用于根据蜗壳指示的EGR流。

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