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公开(公告)号：US20140352280A1
公开(公告)日：2014-12-04
申请号：US13907947
申请日：2013-06-02
IPC: F01N3/10
CPC classification number: F01N3/208 , F01N3/2066 , F01N2610/02 , F01N2610/08 , F01N2610/1406 , F01N2610/1466 , F01N2610/1493 , F01N2900/0422 , F01N2900/1808 , F01N2900/1821 , Y02T10/24
Abstract: A dosing system for delivering reductant into an exhaust gas treatment system of an internal combustion engine using an air driven hydraulic pump, which includes a pressure pump tank and a liquid supply tank, for closed-loop controlling reductant pressure, and a three-stage PWM control method for dosing rate control. Reductant residue in the dosing system is purged by using compressed air, and when the air driven hydraulic pumps is positioned inside a reductant tank, heating means in the reductant tank can also be used for heating the air driven hydraulic pump. The closed-loop pressure control together with the three-stage PWM control allow dosing accuracy insensitive to pressure variations in compressed air, thereby a variety of compressed air sources can be used.
Abstract translation: 一种用于使用包括用于闭环控制还原剂压力的压力泵箱和液体供应箱的气动液压泵将还原剂输送到内燃机的废气处理系统的计量系统，以及三级PWM 配料速率控制的控制方法。 通过使用压缩空气清洗配量系统中的残余物，当空气驱动液压泵位于还原罐内时，还原罐中的加热装置也可用于加热气动液压泵。 闭环压力控制与三级PWM控制一起允许对压缩空气压力变化不敏感的定量精度，从而可以使用各种压缩空气源。
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公开(公告)号：US08881507B2
公开(公告)日：2014-11-11
申请号：US13592091
申请日：2012-08-22
IPC: F01B3/00
CPC classification number: F04B13/00 , F01N3/2066 , F01N2610/02 , F01N2610/03 , F01N2610/1433 , F01N2610/144 , F01N2610/146 , F01N2610/1493 , F01N2900/1808 , F01N2900/1811 , F01N2900/1814 , F02B37/164 , F04B9/12 , Y02T10/24 , Y10T137/0379
Abstract: A dosing system for delivering reductant to an exhaust gas treatment system of an internal combustion engine using air driven hydraulic pumps for closed-loop controlling reductant pressure and a two-stage PWM control method for controlling dosing rate. Reductant residue in the dosing systems is purged by using compressed air after a dosing process completes, and when the air driven hydraulic pumps are positioned inside a reductant tank, dedicated heating means for the pumps is not necessary. The air driven hydraulic pumps can also use low pressure compressed air, and the closed-loop pressure control together with the two-stage PWM control allow dosing accuracy insensitive to pressure variations in compressed air. These new features enable the dosing system use a variety of compressed air sources, including an engine turbo.
Abstract translation: 一种用于使用用于闭环控制还原剂压力的空气驱动液压泵将还原剂递送到内燃机的废气处理系统的计量系统和用于控制计量速率的两级PWM控制方法。 在配料过程完成后，通过使用压缩空气清洗配量系统中的残余物，当空气驱动液压泵位于还原罐内时，不需要用于泵的专用加热装置。 气动液压泵还可以使用低压压缩空气，闭环压力控制与两级PWM控制一起使用，可以对压缩空气中的压力变化不敏感。 这些新功能使配量系统能够使用各种压缩空气源，包括发动机涡轮。
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3.发明申请公开(公告)号：US20140131473A1
公开(公告)日：2014-05-15
申请号：US13674030
申请日：2012-11-10
IPC: B05B15/00
CPC classification number: B05B12/085 , B05B7/2416 , B05B12/006 , B05B12/008 , B05B15/58 , F01N11/00 , F01N2550/05 , F01N2610/02 , F02M37/0076 , F02M55/04 , F02M57/005 , F02M63/0225
Abstract: A fluid delivery apparatus for delivering fluid according to a fluid delivery rate command including a fluid tank, a pump, a buffer, in which a pressure sensor is positioned, an injector, a pump controller, a fluid delivery controller, and a diagnostic controller. When a motor driven pump is used, the diagnostic controller is able to detect issues by comparing a measured pressure change with an expected value calculated using pressure sensing values and the power applied to the motor. If an air driven pump is employed, pressure sensing values, fluid delivery rate commands, and pump operating status can be used for calculating compressed air volume in the pump and trapped air volume in the buffer, and for further triggering pressing and suction strokes of the air driven pump, diagnosing issues in the fluid delivery apparatus, detecting fluid level in the fluid tank, and refilling trapped air in the buffer.
Abstract translation: 一种流体输送装置，用于根据流体输送速率指令输送流体，所述流体输送速率指令包括流体箱，泵，其中定位有压力传感器的缓冲器，注射器，泵控制器，流体输送控制器和诊断控制器。 当使用电机驱动泵时，诊断控制器能够通过将测量的压力变化与使用压力感测值计算的期望值和施加到电动机的功率进行比较来检测问题。 如果使用空气驱动泵，则可以使用压力检测值，流体输送速率指令和泵运行状态来计算泵中的压缩空气量和缓冲器中的被捕获的空气体积，并且用于进一步触发压力和吸入冲程 空气驱动泵，诊断流体输送装置中的问题，检测流体箱中的液位，并将缓冲器中的被捕获的空气重新填充。
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4.发明申请SINTERED ND-FE-B PERMANENT MAGNET WITH HIGH COERCIVITY FOR HIGH TEMPERATURE APPLICATIONS 有权用于高温应用的高耐磨性的ND-FE-B永磁体公开(公告)号：US20110233455A1
公开(公告)日：2011-09-29
申请号：US13132222
申请日：2008-12-01
Applicant: Mi Yan , Xiangzhi Zhou , Xiongfei Fan , Tianyu Ma , Wei Luo
Inventor： Mi Yan , Xiangzhi Zhou , Xiongfei Fan , Tianyu Ma , Wei Luo
CPC classification number: H01F1/0577 , H01F41/0266
Abstract: A type of sintered Nd—Fe—B permanent magnet with high intrinsic coercivity of about 30KOe or more is produced by dual alloy method. The method comprises the following steps: preparing the powders of master phase alloy and intergranular phase alloy respectively, mixing the powders, compacting the powders in magnetic field, sintering the compacted body at 1050˜1125° C. and annealing at 890-1000° C. and 500-650° C. successively. In the process of preparing the powder of intergranular phase alloy, the nano-powder additive selected from the group consisting of NiAl, TiC, SiC, AlN, TiN, ZrN and the combination thereof is used to modify the powder of intergranular phase alloy.
Abstract translation: 通过双重合金法制造出具有约30KOe以上的高固有矫顽力的烧结Nd-Fe-B永磁体。 该方法包括以下步骤：分别制备主相合金和晶间相合金粉末，混合粉末，在粉末中压实粉末，在1050〜1 125℃烧结压实体，在890-1000℃退火 和500-650℃。 在制备晶间相合金粉末的过程中，使用选自NiAl，TiC，SiC，AlN，TiN，ZrN的纳米粉末添加剂及其组合来改变晶间相合金粉末。
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公开(公告)号：US09951673B2
公开(公告)日：2018-04-24
申请号：US15042784
申请日：2016-02-12
IPC: F01N3/00 , F01N3/02 , F01N3/10 , F01N3/20 , F01N11/00 , F01N3/023 , F01N3/025 , F01N3/08 , F01N9/00 , F01N5/02
CPC classification number: F01N11/007 , F01N3/0234 , F01N3/0253 , F01N3/0842 , F01N3/0864 , F01N3/0871 , F01N3/106 , F01N3/2013 , F01N3/2033 , F01N3/206 , F01N5/02 , F01N9/002 , F01N2240/02 , F01N2240/16 , F01N2240/30 , F01N2250/02 , F01N2550/02 , F01N2560/025 , F01N2560/026 , F01N2560/06 , F01N2560/08 , F01N2570/14 , F01N2570/16 , F01N2610/03 , F01N2610/10 , F01N2900/0408 , F01N2900/0411 , F01N2900/0416 , F01N2900/0602 , F01N2900/14 , F01N2900/1402 , Y02A50/2344 , Y02T10/16 , Y02T10/26 , Y02T10/47
Abstract: An aftertreatment device for reducing NOx, PM, HC, and CO generated by a compression-ignition engine. In this device, lean exhaust air generated in the engine is enriched using a reactor together with an oxygen sorption device according to a target deNOx efficiency value, and heat energy is recovered. The enriched exhaust gas then passes through an oxidation catalyst, where NOx is reduced with CO and HC. PM in the exhaust gas is further trapped in a DPF. To lower energy cost, an heat exchanger is used for more effectively heating the DPF during regeneration, and an exhaust gas compressor positioned upstream from the DPF is employed to control engine back pressure. When exhaust gas temperature is low, to regenerate the DPF with minimum energy consumption, an electrical heater is used to heat dosing fuel before it is mixed with exhaust gas, and a regeneration heating process is then jump-started.
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Patent Agency Ranking
公开(公告)号：US09818515B2
公开(公告)日：2017-11-14
申请号：US13132266
申请日：2008-12-01
Applicant: Mi Yan , Xiangzhi Zhou , Xiongfei Fan , Tianyu Ma , Wei Luo
Inventor： Mi Yan , Xiangzhi Zhou , Xiongfei Fan , Tianyu Ma , Wei Luo
CPC classification number: H01F1/0577 , H01F41/0266
Abstract: A type of sintered Nd—Fe—B permanent magnet with high corrosion resistance is produced by dual alloy method. The method comprises the following steps: preparing the powders of master phase alloy and intergranular phase alloy respectively, mixing the powders, compacting the powders in magnetic field, sintering the compacted body at 1050˜1125° C., and annealing at 920-1020° C. and 500-650° C. successively.
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公开(公告)号：US20090020630A1
公开(公告)日：2009-01-22
申请号：US12218673
申请日：2008-07-17
Applicant: Mi Yan
Inventor： Mi Yan
CPC classification number: G01F22/02 , F02D41/221 , F02D41/40 , F02M65/003 , F02M2200/24 , G01M15/06
Abstract: A fuel injection apparatus with a deterioration detection device that includes a volume changing chamber, the volume of which is determined by fuel pressure inside the injector. After injector nozzle opens, the time for the volume changing chamber to change from an initial volume to a target volume is measured and used for calculating changes in nozzle orifice size. The value of orifice size change can be used for both diagnosing injector deterioration and compensating fuel flow rate in a feedback control. In addition to detecting injector deterioration and failures, the volume changing device also dampens effects of noise in fuel pressure to fuel flow rate control and decreases chances of after-injection and second injection.
Abstract translation: 一种具有劣化检测装置的燃料喷射装置，其包括容积改变室，其容积由喷射器内部的燃料压力决定。 在喷射器喷嘴打开之后，测量体积改变室从初始体积变化到目标体积的时间，并用于计算喷嘴孔尺寸的变化。 孔尺寸变化的值可用于诊断反馈控制中的喷射器劣化和补偿燃料流量。 除了检测喷射器的劣化和故障之外，体积改变装置还抑制燃料压力中的噪声对燃料流量控制的影响，并且减少了后喷射和第二次喷射的机会。
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8.发明申请公开(公告)号：US20070008100A1
公开(公告)日：2007-01-11
申请号：US11481501
申请日：2006-07-06
IPC: G08B29/00
CPC classification number: G05B11/28
Abstract: A solid-state digital control and detection apparatus employs electronic sensors to create pulse signals, the width of which is determined by sensing values. The sensing pulses are then compared with setting pulses, the width of which is adjustable, in two types of comparison circuits. Result pulses from one of the comparison circuits are filtered for control and that from the other one are digitalized for display by using counters.
Abstract translation: 固态数字控制和检测装置使用电子传感器来产生脉冲信号，其宽度由感测值确定。 然后将感测脉冲与两种类型的比较电路中的宽度可调的设定脉冲进行比较。 对来自一个比较电路的结果脉冲进行滤波以进行控制，并从另一个比较电路中进行数字化以通过使用计数器进行显示。
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公开(公告)号：US20140202139A1
公开(公告)日：2014-07-24
申请号：US14157526
申请日：2014-01-17
CPC classification number: F01N9/002 , F01N3/0253 , F01N3/035 , F01N3/106 , F01N13/0097 , F01N2550/04 , F01N2560/06 , F01N2560/14 , F01N2610/03 , F01N2610/146 , F01N2610/148 , F01N2900/1404 , F17D3/01 , Y02T10/47 , Y10T137/87676
Abstract: An apparatus for controlling hydrocarbon delivery in an exhaust gas processing system of an engine that includes a heat generating device and a DPF, comprising a fuel injector and a control manifold, which has a pressure chamber holding compressed air for separating hydrocarbon from exhaust gas, and is fluidly connected to the fuel injector, a fuel control solenoid valve for controlling hydrocarbon supply, a pressure sensor, and a volume changing device, which provides a linear relationship between its volume change and pressure change in the control manifold. With the volume changing device, a deterioration factor value indicative of performance change of the hydrocarbon delivery device can be calculated for compensating temperature control, calculating the hydrocarbon conversion efficiencies of the heat generating device and the DPF in the exhaust gas processing system, detecting failures and mal-functions in the exhaust gas processing system and the engine.
Abstract translation: 一种用于控制发动机的排气处理系统中的烃输送的装置，包括发热装置和DPF，包括燃料喷射器和控制歧管，所述燃料喷射器和控制歧管具有保持用于从废气中分离烃的压缩空气的压力室，以及 流体地连接到燃料喷射器，用于控制烃供应的燃料控制电磁阀，压力传感器和体积改变装置，其在其控制歧管中的体积变化和压力变化之间提供线性关系。 利用体积变更装置，可以计算表示碳氢化合物输送装置的性能变化的劣化因子值，以补偿温度控制，计算废气处理系统中的发热装置和DPF的烃转化效率，检测故障和 废气处理系统和发动机的功能不正常。
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公开(公告)号：US20120315163A1
公开(公告)日：2012-12-13
申请号：US13495853
申请日：2012-06-13
IPC: F04B19/20
Abstract: A hydraulically driven pump with driving pressure controlled within a predetermined range. The hydraulically driven pump has a driving-fluid port fluidly coupled to a compressed air source and ambient, a driven-fluid inlet port fluidly connected to a tank, and a driven-fluid outlet port. A pressure sensor is used for providing sensing values indicative to the driving pressure in the hydraulically driven pump, and the driving pressure is controlled in closed loop by releasing and filling air through the driving-fluid port. The hydraulically driven pump has a suction stroke, in which driven fluid is refilled into the pump, and a pressing stroke, in which driven fluid is pressed out. A hydraulic buffer is used to provide driving pressure during a suction stroke and two hydraulically driven pumps can work alternately in providing continuous pressure control.
Abstract translation: 驱动压力控制在预定范围内的液压驱动泵。 液压驱动泵具有流体地联接到压缩空气源和环境的驱动流体端口，流体连接到罐的从动流体入口端口和从动流体出口端口。 压力传感器用于提供指示液压驱动泵中的驱动压力的感测值，并且通过释放并通过驱动流体端口填充空气来将驱动压力控制在闭环中。 液压驱动泵具有吸入冲程，其中被驱动的流体被再填充到泵中，并且其中被驱动流体被压出的按压行程。 液压缓冲器用于在吸入行程期间提供驱动压力，并且两个液压驱动泵可以交替工作以提供连续的压力控制。
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