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公开(公告)号：US20120020857A1
公开(公告)日：2012-01-26
申请号：US12840383
申请日：2010-07-21
申请人： Raymond Upano ISADA , Yongxiang Li
发明人： Raymond Upano ISADA , Yongxiang Li
CPC分类号： F01N3/208 , B01D2251/2067 , F01N9/00 , F01N2610/02 , F01N2610/144 , F01N2610/1473 , F01N2610/1493 , Y02T10/24 , Y02T10/47
摘要： A reductant dosing system is disclosed. The reductant dosing system may have a supply of reductant, a reductant nozzle, and a pump with an inlet and an outlet. The reductant dosing system may also have a first passage connecting the supply with the inlet of the pump, and a first control valve disposed in the first passage. The reductant dosing system may further have a second passage connecting the outlet of the pump with the reductant nozzle, and a second control valve disposed in the second passage. The reductant dosing system may additionally have a third passage connecting the second control valve to the first passage at a location downstream of the first control valve, and a fourth passage connecting the second control valve with the supply.
摘要翻译： 公开了还原剂计量系统。 还原剂计量系统可以具有还原剂，还原剂喷嘴和具有入口和出口的泵的供应。 还原剂计量系统还可以具有连接供应源与泵的入口的第一通道和设置在第一通道中的第一控制阀。 还原剂计量系统还可以具有将泵的出口与还原剂喷嘴连接的第二通道和设置在第二通道中的第二控制阀。 还原剂计量系统还可以具有在第一控制阀的下游位置处连接第二控制阀到第一通道的第三通道，以及将第二控制阀与电源连接的第四通道。
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公开(公告)号：US07707993B2
公开(公告)日：2010-05-04
申请号：US12214928
申请日：2008-06-24
申请人： Dana R. Coldren , Yongxiang Li , Victor I. Yacoub
发明人： Dana R. Coldren , Yongxiang Li , Victor I. Yacoub
CPC分类号： F02M47/027 , F02M57/021
摘要： A mechanically actuated electronically controlled fuel injector includes a first electrical actuator that controls the position of a spill value, and a second electrical actuator to control pressure on a closing hydraulic surface associated with a nozzle check valve. The fuel injector is actuated via rotation of a cam to move a plunger to displace fuel from a fuel pressurization chamber either to a spill passage or at high pressure out of a nozzle outlet of the fuel injector for an injection event. Pressure in the fuel injector is moderated when the plunger is moving and the nozzle check valve is in a closed position by briefly cracking open the spill valve to relieve some pressure during the dwell between injection events, such as between a large main injection event and a small close coupled post injection event. This strategy allows for longer dwell times between injection events as well as smaller injection quantities in the post-injection.
摘要翻译： 机械致动的电子控制燃料喷射器包括控制泄漏值的位置的第一电致动器和用于控制与喷嘴止回阀相关联的关闭液压表面上的压力的第二电致动器。 燃料喷射器通过凸轮的旋转被致动以移动柱塞，以将来自燃料加压室的燃料从燃料通道或高压出口排出喷射器喷嘴的喷嘴出口。 当柱塞移动时，燃料喷射器中的压力缓和，并且喷嘴止回阀通过在喷射事件之间的暂停期间短暂地打开泄漏阀以减轻一些压力，例如在大的主喷射事件和 小型紧耦合后注射事件。 该策略允许注射事件之间更长的停留时间以及后注射中较小的注射量。
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公开(公告)号：US07111613B1
公开(公告)日：2006-09-26
申请号：US11139653
申请日：2005-05-31
CPC分类号： F02M59/366 , F02M47/027 , F02M57/023
摘要： A fuel injector for an internal combustion engine having a crankshaft is disclosed. The fuel injector has plunger to displace fuel and an electronically controlled spill valve. The fuel injector also has a nozzle member having at least one orifice and a valve needle disposed within the nozzle member, and movable against a spring bias to selectively inject pressurized fuel through the at least one orifice. The fuel injector also has an electronically controlled check valve. The valve needle is automatically moved to inject pressurized fuel when the pressure of the fuel within the fuel injector reaches a predetermined valve opening pressure determined by a spring bias. Valve elements of the electronically controlled spill and check valves are both in a flow blocking position before the pressure of the fuel within the fuel injector reaches the predetermined valve opening pressure. Injection terminates when the valve element of the electronically controlled check valve is moved to a flow-passing position.
摘要翻译： 公开了一种具有曲轴的内燃机燃油喷射器。 燃料喷射器具有用于置换燃料的柱塞和电子控制的溢流阀。 燃料喷射器还具有喷嘴构件，该喷嘴构件具有设置在喷嘴构件内的至少一个喷孔和阀针，并且能够抵抗弹簧偏压运动，以选择性地将加压燃料通过至少一个喷孔喷射。 燃料喷射器还具有电子控制止回阀。 当燃料喷射器内的燃料的压力达到由弹簧偏压确定的预定的开阀压力时，阀针被自动移动以喷射加压燃料。 在燃料喷射器内的燃料的压力达到预定的阀打开压力之前，电子控制的溢流阀和止回阀的阀元件都处于阻流位置。 当电控止回阀的阀元件移动到流通位置时，注射终止。
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公开(公告)号：US06901795B2
公开(公告)日：2005-06-07
申请号：US10494410
申请日：2002-10-22
申请人： Ahmed Mostafa Naguib , Yongxiang Li
发明人： Ahmed Mostafa Naguib , Yongxiang Li
摘要： This invention is a flow measurement device that has high spatial (less than 1.0×1.0 mm2) and temporal resolution (greater than 10 s to 100 s kHz) to measure flow properties in unsteady and direction-reversing conditions. The present invention can have an oscillating substrate, hot wire prongs, a hot wire attached to the hot wire prong, sensor leads from the prongs to a constant temperature anemometry circuit (CTA), means for the oscillating substrate to oscillate the substrate at a frequency greater than a characteristic cycle frequency of the flow to be measured, at a frequency less than a CTA bandwidth frequency, and such that a frequency and amplitude (Aw) of oscillation are sufficiently large to be detected, and means to obtain two measurements during an oscillation cycle when the hot wire is at its maximum oscillation velocity. Alternatively, the prongs can be eliminated and a hot wire or hot film can be directly applied to the oscillating substrate.
摘要翻译： 本发明是一种流量测量装置，其具有高空间（小于1.0×1.0mm 2）和时间分辨率（大于10s至100skHz）以测量不稳定和方向 - 反转条件。 本发明可以具有振荡基板，热线插脚，连接到热丝插脚的热丝，从插脚到传感器引线到恒温风速测量电路（CTA），振荡基板以频率振荡基板的装置 大于CTA带宽频率的频率，并且使得振荡的频率和振幅（A SUB W W）足够大以便被检测，该频率大于待测量流的特征循环频率， 以及当热丝处于其最大振荡速度时在振荡周期期间获得两次测量的装置。 或者，可以消除插脚，并且可以将热丝或热膜直接施加到振荡基板。
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公开(公告)号：US08943808B2
公开(公告)日：2015-02-03
申请号：US12891191
申请日：2010-09-27
申请人： Yongxiang Li , Jinhui Sun
发明人： Yongxiang Li , Jinhui Sun
CPC分类号： F01N3/208 , F01N2610/02 , F01N2610/10 , F01N2610/1406 , F01N2610/1453 , F01N2610/146 , F01N2610/1473 , F02B37/00 , Y02T10/24
摘要： A reductant dosing system for an engine is disclosed. The reductant dosing system may have a supply of reductant, a reservoir configured to hold pressurized reductant, and a pump configured to draw reductant from the supply and discharge reductant at an elevated pressure into the reservoir. The reductant dosing system may also have a plurality of injectors fluidly connected to the reservoir, and a drain valve fluidly connected between the reservoir and the supply.
摘要翻译： 公开了用于发动机的还原剂计量系统。 还原剂计量系统可以具有还原剂供应源，构造成保持加压还原剂的储存器，以及构造成在供应和排出还原剂在升高的压力下将还原剂牵引到储存器中的泵。 还原剂计量系统还可以具有流体地连接到储存器的多个喷射器，以及流体连接在储存器和供应源之间的排水阀。
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公开(公告)号：US20090314259A1
公开(公告)日：2009-12-24
申请号：US12214928
申请日：2008-06-24
申请人： Dana R. Coldren , Yongxiang Li , Victor I. Yacoub
发明人： Dana R. Coldren , Yongxiang Li , Victor I. Yacoub
IPC分类号： F02M51/00
CPC分类号： F02M47/027 , F02M57/021
摘要： A mechanically actuated electronically controlled fuel injector includes a first electrical actuator that controls the position of a spill value, and a second electrical actuator to control pressure on a closing hydraulic surface associated with a nozzle check valve. The fuel injector is actuated via rotation of a cam to move a plunger to displace fuel from a fuel pressurization chamber either to a spill passage or at high pressure out of a nozzle outlet of the fuel injector for an injection event. Pressure in the fuel injector is moderated when the plunger is moving and the nozzle check valve is in a closed position by briefly cracking open the spill valve to relieve some pressure during the dwell between injection events, such as between a large main injection event and a small close coupled post injection event. This strategy allows for longer dwell times between injection events as well as smaller injection quantities in the post-injection.
摘要翻译： 机械致动的电子控制燃料喷射器包括控制泄漏值的位置的第一电致动器和用于控制与喷嘴止回阀相关联的关闭液压表面上的压力的第二电致动器。 燃料喷射器通过凸轮的旋转被致动以移动柱塞，以将来自燃料加压室的燃料从燃料通道或高压出口排出喷射器喷嘴的喷嘴出口。 当柱塞移动时，燃料喷射器中的压力缓和，并且喷嘴止回阀通过在喷射事件之间的暂停期间短暂地打开泄漏阀以减轻一些压力，例如在大的主喷射事件和 小型紧耦合后注射事件。 该策略允许注射事件之间更长的停留时间以及后注射中较小的注射量。
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公开(公告)号：US07384882B2
公开(公告)日：2008-06-10
申请号：US10448372
申请日：2003-05-30
申请人： Bin Sun , Wei Wu , Enquan Wang , Yongxiang Li , Shuzhong Zhang , Lingmin Hu
发明人： Bin Sun , Wei Wu , Enquan Wang , Yongxiang Li , Shuzhong Zhang , Lingmin Hu
IPC分类号： B01J20/34
CPC分类号： B01J38/60 , B01J21/20 , B01J29/89 , B01J29/90 , Y10S502/514
摘要： The present invention discloses a process for regenerating titanium-containing catalysts, characterized in that a deactivated catalyst is treated in an acidic solution having a pH value of ≦3, and then dried and calcined. The process is simple in procedure and can make the catalytic activity, selectivity and stability of the regenerated catalyst be recovered to the level of its fresh catalyst.
摘要翻译： 本发明公开了一种再生含钛催化剂的方法，其特征在于，在pH值<= 3的酸性溶液中处理失活的催化剂，然后干燥和煅烧。 该方法操作简单，可使再生催化剂的催化活性，选择性和稳定性达到新鲜催化剂的水平。
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公开(公告)号：US07255091B2
公开(公告)日：2007-08-14
申请号：US11139685
申请日：2005-05-31
CPC分类号： F02M63/0015 , F02M45/02 , F02M47/027 , F02M57/023 , F02M59/366
摘要： A fuel injector for an internal combustion engine is disclosed. The fuel injector has a plunger, an electronically controlled check valve, and a controller in communication with the electronically controlled check valve. The controller is configured to receive a indication of a desired start of injection timing relative to an angular position of a crankshaft of the engine, and a desired injection quantity. The controller is also configured to determine a displacement of the plunger based on an angular position of the crankshaft; to determine a start of current for the electronically controlled check valve relative to plunger displacement that results in the desired start of injection timing, and to determine an end of current for the electronically controlled check valve relative to plunger displacement that results in the desired injection quantity. The controller is further configured to affect the determined start and end of current for the electronically controlled check valve.
摘要翻译： 公开了一种用于内燃机的燃料喷射器。 燃料喷射器具有柱塞，电控止回阀和与电控止回阀连通的控制器。 控制器被配置为接收相对于发动机的曲轴的角位置和期望的喷射量的期望的喷射正时开始的指示。 控制器还构造成基于曲轴的角位置来确定柱塞的位移; 以确定电子控制止回阀相对于柱塞位移的电流开始，其导致所需的喷射正时开始，并且确定电子控制止回阀相对于柱塞位移的电流的结束，其导致期望的喷射量 。 控制器还被配置为影响电子控制止回阀确定的电流开始和结束。
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公开(公告)号：US20050215810A1
公开(公告)日：2005-09-29
申请号：US10448282
申请日：2003-05-30
申请人： Wei Wu , Bin Sun , Yongxiang Li , Shibiao Cheng , Enquan Wang , Shuzhong Zhang
发明人： Wei Wu , Bin Sun , Yongxiang Li , Shibiao Cheng , Enquan Wang , Shuzhong Zhang
IPC分类号： C07C249/08 , C07B61/00 , C07C249/04 , C07C251/34 , C07C251/38 , C07C251/42 , C07C251/44 , C07C251/48 , C07C253/22
CPC分类号： C07C251/48 , C07C249/04 , C07C251/38 , C07C251/42 , C07C2601/08 , C07C2601/14
摘要： The present invention discloses a process for the ammoximation of carbonyl compounds, wherein a reaction in a liquid reaction system comprising a carbonyl compound, ammonia and hydrogen peroxide is carried out in the presence of a sillicon-containing catalyst, characterized in that a liquid silicon-containing assistant is added to the reaction system so that the silicon concentration in the system reaches a range of between 0.1 and 10000 ppm. In the process according to the present invention, the deactivation of catalyst due to dissolution of silicon in the catalyst can be reduced, thus lifetime of the catalyst extended and the stable operation time elongated.
摘要翻译： 本发明公开了一种羰基化合物的肟化方法，其中在含有硅基催化剂的催化剂存在下进行包含羰基化合物，氨和过氧化氢的液体反应体系中的反应，其特征在于， 加入到反应体系中，使得体系中的硅浓度达到0.1〜10000ppm的范围。 在根据本发明的方法中，可以减少由于硅在催化剂中的溶解导致的催化剂的失活，从而延长催化剂的寿命并延长稳定的操作时间。
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公开(公告)号：US20120073264A1
公开(公告)日：2012-03-29
申请号：US12891191
申请日：2010-09-27
申请人： Yongxiang LI , Jinhui Sun
发明人： Yongxiang LI , Jinhui Sun
CPC分类号： F01N3/208 , F01N2610/02 , F01N2610/10 , F01N2610/1406 , F01N2610/1453 , F01N2610/146 , F01N2610/1473 , F02B37/00 , Y02T10/24
摘要： A reductant dosing system for an engine is disclosed. The reductant dosing system may have a supply of reductant, a reservoir configured to hold pressurized reductant, and a pump configured to draw reductant from the supply and discharge reductant at an elevated pressure into the reservoir. The reductant dosing system may also have a plurality of injectors fluidly connected to the reservoir, and a drain valve fluidly connected between the reservoir and the supply.
摘要翻译： 公开了用于发动机的还原剂计量系统。 还原剂计量系统可以具有还原剂供应源，构造成保持加压还原剂的储存器，以及构造成在供应和排出还原剂在升高的压力下将还原剂牵引到储存器中的泵。 还原剂计量系统还可以具有流体地连接到储存器的多个喷射器，以及流体连接在储存器和供应源之间的排水阀。
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