-
公开(公告)号：US09689297B2
公开(公告)日：2017-06-27
申请号：US14730281
申请日：2015-06-04
申请人： Baohua Qi
发明人： Baohua Qi
CPC分类号： F01N11/002 , F01N3/0253 , F01N3/027 , F01N3/2053 , F01N9/002 , F01N2410/04 , Y02T10/24 , Y02T10/47
摘要： A Diesel Particulate Filter (DPF) system including a Venturi exhaust passage device, in which a temperature and a pressure in a high pressure passage are measured, together with a difference of pressures in the high pressure passage and a low pressure passage, while a pressure drop across a DPF is monitored. A PM amount and an exhaust flow rate, which are key parameters in DPF control, can be calculated with the measured values. With the Venturi exhaust passage device, a two-stage bootstrapping heating device with two DOCs and an electrical heater can be further used to heat exhaust gas at a temperature lower than a light-off temperature, while a flow-back passage fluidly connected to an outlet of the DPF can be used for increasing exhaust flow-rate and making PM distribution in the DPF more uniform.
-
公开(公告)号：US20170022867A1
公开(公告)日：2017-01-26
申请号：US15288035
申请日：2016-10-07
申请人： Baohua Qi
发明人： Baohua Qi
CPC分类号： F01N3/208 , F01N3/206 , F01N3/2066 , F01N3/28 , F01N2610/00 , F01N2610/02 , F01N2610/1453 , Y02T10/24
摘要： An injector for delivering a working fluid into a working environment is disclosed. According to one embodiment of the present invention, the injector includes a pre-metering chamber with a control valve controlling fluid delivery rate and a swirl chamber, in which a swirling flow is created and atomization is achieved at low injector pressure when it is released. In another embodiment, the injector includes a swirl chamber and an atomization element with a bore, through which a control valve is positioned. The control valve forces a working fluid flow through the atomization element when the injector is energized to create a metered swirling flow. To avoid issues with deteriorated working fluid, a purging apparatus is used for emptying working fluid residue in the injector, and a special control method is used when the injector works in a high-temperature working environment.
摘要翻译： 公开了一种用于将工作流体输送到工作环境中的喷射器。 根据本发明的一个实施例，喷射器包括具有控制流体输送速率的控制阀和旋流室的预计量室，其中产生旋流并在释放时在低喷射器压力下实现雾化。 在另一个实施例中，喷射器包括旋转室和具有孔的雾化元件，控制阀通过其定位。 当喷射器通电时，控制阀迫使工作流体流过雾化元件以产生计量旋流。 为了避免工作流体劣化的问题，使用清洗装置来排空喷射器中的工作流体残留物，并且当喷射器在高温工作环境中工作时，使用特殊的控制方法。
-
公开(公告)号：US20160160773A1
公开(公告)日：2016-06-09
申请号：US15042784
申请日：2016-02-12
CPC分类号： 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
摘要： 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.
摘要翻译： 一种用于还原由压缩点火式发动机产生的NOx，PM，HC和CO的后处理装置。 在该装置中，根据目标脱硝效率值，使用反应器和氧气吸附装置将在发动机中产生的贫排气富集，并回收热能。 然后，浓缩废气通过氧化催化剂，其中通过CO和HC还原NOx。 废气中的PM进一步被捕获在DPF中。 为了降低能量成本，使用热交换器以在再生期间更有效地加热DPF，并且使用位于DPF上游的排气压缩机来控制发动机背压。 当废气温度低时，为了以最小的能量消耗再生DPF，在与废气混合之前，使用电加热器来加热计量燃料，然后再启动再生加热过程。
-
公开(公告)号：US20150361860A1
公开(公告)日：2015-12-17
申请号：US14730281
申请日：2015-06-04
申请人： Baohua Qi
发明人： Baohua Qi
CPC分类号： F01N11/002 , F01N3/0253 , F01N3/027 , F01N3/2053 , F01N9/002 , F01N2410/04 , Y02T10/24 , Y02T10/47
摘要： A DPF system including a Venturi exhaust passage device, in which a temperature and a pressure in a high pressure passage are measured, together with a difference of pressures in the high pressure passage and a low pressure passage, while a pressure drop across a DPF is monitored. A PM amount and an exhaust flow rate, which are key parameters in DPF control, can be calculated with the measured values. With the Venturi exhaust passage device, a two-stage bootstrapping heating device with two DOCs and an electrical heater can be used to heat exhaust gas at a temperature lower than a light-off temperature, while a flow-back passage fluidly connected to an outlet of the DPF can be used for increasing exhaust flow-rate and making PM distribution in the DPF more uniform. These technologies decrease risks of thermal runaways, and enable a DPF system controlled without using engine operating parameters.
摘要翻译： 包括文丘里排气通道装置的DPF系统，其中测量高压通道中的温度和压力以及高压通道和低压通道中的压力差，同时DPF上的压降为 监控。 作为DPF控制的关键参数的PM量和排气流量可以用测量值计算。 使用文丘里排气通道装置，可以使用具有两个DOC和电加热器的两级自举加热装置在低于关闭温度的温度下加热废气，同时流体连接到出口的回流通道 的DPF可用于增加排气流量，并使DPF中的PM分布更均匀。 这些技术可以降低热损失的风险，并且可以在不使用发动机工作参数的情况下控制DPF系统。
-
5.发明授权公开(公告)号：US09132442B2
公开(公告)日：2015-09-15
申请号：US13674030
申请日：2012-11-10
IPC分类号： B05B12/00 , B05B12/08 , F02M57/00 , B05B7/24 , F02M63/02 , F01N11/00 , F02M55/04 , F02M37/00
CPC分类号： B05B12/085 , B05B7/2416 , B05B12/006 , B05B12/008 , B05B15/58 , F01N11/00 , F01N2550/05 , F01N2610/02 , F02M37/0076 , F02M55/04 , F02M57/005 , F02M63/0225
摘要： 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.
摘要翻译： 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。
-
公开(公告)号：US20150096287A1
公开(公告)日：2015-04-09
申请号：US14503414
申请日：2014-10-01
申请人： Baohua Qi
发明人： Baohua Qi
IPC分类号： F01N3/20
CPC分类号： F01N3/208 , F01N9/00 , F01N13/0093 , F01N2610/02 , F01N2610/14 , F01N2610/146 , F01N2900/0408 , F01N2900/1621 , F01N2900/1818 , Y02T10/24 , Y02T10/47
摘要： A multi-stage SCR control system including a front reductant dosing device, a front SCR device, a back reductant dosing device, a back SCR device, and a dosing controller. In normal control cycles, a NSR of the front SCR device is controlled below a stoichiometric reaction ratio to decrease system sensitivity to catalyst aging. In a diagnostic cycle, the NSR of the front or the back SCR device is controlled lower than the stoichiometric reaction ratio, and a reductant quality ratio, which is indicative of reductant quality and dosing accuracy, is calculated. In another diagnostic cycle, the NSR is controlled above the stoichiometric reaction ratio, and an average deNOx efficiency is calculated. The reductant quality ratio and the average deNOx efficiency values are further used in SCR feedback control and permanent catalyst damages can also be isolated from temporary catalyst poisons with these values after a thermal recovery event is completed.
摘要翻译： 一种多级SCR控制系统，包括前还原剂计量装置，前SCR装置，后还原剂计量装置，后SCR装置和计量控制器。 在正常的控制循环中，将前SCR装置的NSR控制在化学计量反应比以下，以降低对催化剂老化的系统敏感性。 在诊断循环中，前控制装置或后SCR装置的NSR被控制为低于化学计量反应比，并计算指示还原剂质量和计量精度的还原剂质量比。 在另一个诊断循环中，将NSR控制在化学计量反应比以上，并计算平均脱硝效率。 还原剂质量比和平均脱硝效率值进一步用于SCR反馈控制，永久性催化剂损伤也可以在热恢复事件完成后与临时催化剂毒物隔离。
-
公开(公告)号：US20150013646A1
公开(公告)日：2015-01-15
申请号：US13938230
申请日：2013-07-10
申请人： Baohua Qi
发明人： Baohua Qi
CPC分类号： G01F23/263 , G01F23/246 , G01F23/2962 , G01F23/74 , G01N27/123 , G01N33/00
摘要： A multifunctional fluid level and quality sensing device including a fluid level sensor and a capacitive sensor for detecting fluid level, fluid quality, errors in the sensing device, and issues in a fluid delivery system. In detecting fluid level, impedance of the capacitive sensor is used in improving sensing performance of the fluid level sensor, while in detecting fluid quality and errors in the sensing device, an expected impedance range with an upper boundary value and a lower boundary value is calculated, and a fault is generated when the measured impedance value is out of the expected impedance range. The fluid level and quality sensing device can also be used in a fluid delivery system for detecting system issues, and the results can be used for further isolating errors in the system. Operating status of higher level system provides more information for this purpose.
摘要翻译： 一种多功能液位和质量检测装置，包括用于检测流体液位，流体质量，感测装置中的误差以及流体输送系统中的问题的液位传感器和电容式传感器。 在检测液位时，电容式传感器的阻抗用于提高液位传感器的检测性能，同时在检测传感装置的流体质量和误差的同时，计算具有上边界值和下边界值的预期阻抗范围 并且当测量的阻抗值超出预期阻抗范围时产生故障。 流体液位和质量检测装置也可用于流体输送系统中，用于检测系统问题，并且可以将结果用于进一步分离系统中的误差。 上级系统的运行状态为此提供了更多信息。
-
公开(公告)号：US08931259B2
公开(公告)日：2015-01-13
申请号：US13602195
申请日：2012-09-02
CPC分类号： F01N3/208 , F01N2610/1466 , Y02T10/24
摘要： A dosing apparatus with purging means for delivering reductant into an exhaust gas treatment system of an internal combustion engine. The apparatus includes a first Venturi T connector with two high pressure ports and a low pressure port, and a purge control valve for switching from normal dosing to purging by controlling flow through the two high pressure ports. The apparatus may also include a second Venturi T connector and a reductant supply chamber for purging reductant residue in its pump and reductant passage lines. The apparatus may further include a purging controller that triggers a purging event according to engine oil or coolant temperature and controls the purging process after a dosing process completes.
摘要翻译： 一种具有用于将还原剂输送到内燃机的废气处理系统中的清洗装置的计量装置。 该设备包括具有两个高压端口和低压端口的第一文丘里管T连接器，以及用于通过控制通过两个高压端口的流量从正常给料切换到清洗的清洗控制阀。 该装置还可以包括第二文丘里管T连接器和还原剂供应室，用于在其泵和还原剂通道管线中清除还原剂残余物。 该设备还可以包括清洗控制器，其根据发动机油或冷却剂温度触发清洗事件，并且在配料过程完成后控制清洗过程。
-
公开(公告)号：US08754720B2
公开(公告)日：2014-06-17
申请号：US13566994
申请日：2012-08-03
CPC分类号： H05B1/0244
摘要： An apparatus and method for controlling a device using pulse signals. In the apparatus and method, a two-stage control is used to generate pulse signals, which can be a PWM signal, a pulse signal including a PWM signal with a sleeping time, or a PDM signal. The two-stage control includes a second stage control, which generates pulse signals according to parameter values generated periodically by a first stage according to a target value and feedback sensing values. The two-stage control can be used in decreasing perturbation in a closed-loop control and accurate open-loop control.
摘要翻译： 一种使用脉冲信号来控制装置的装置和方法。 在该装置和方法中，使用两级控制来产生脉冲信号，其可以是PWM信号，包括具有休眠时间的PWM信号的脉冲信号或PDM信号。 两级控制包括第二级控制，其根据目标值和反馈感测值根据由第一级周期性地产生的参数值产生脉冲信号。 两级控制可用于减少闭环控制和精确开环控制中的扰动。
-
公开(公告)号：US20130055701A1
公开(公告)日：2013-03-07
申请号：US13602195
申请日：2012-09-02
IPC分类号： F01N3/20
CPC分类号： F01N3/208 , F01N2610/1466 , Y02T10/24
摘要： A dosing apparatus with purging means for delivering reductant into an exhaust gas treatment system of an internal combustion engine. The apparatus includes a first Venturi T connector with two high pressure ports and a low pressure port, and a purge control valve for switching from normal dosing to purging by controlling flow through the two high pressure ports. The apparatus may also include a second Venturi T connector and a reductant supply chamber for purging reductant residue in its pump and reductant passage lines. The apparatus may further include a purging controller that triggers a purging event according to engine oil or coolant temperature and controls the purging process after a dosing process completes.
摘要翻译： 一种具有用于将还原剂输送到内燃机的废气处理系统中的清洗装置的计量装置。 该设备包括具有两个高压端口和低压端口的第一文丘里管T连接器，以及用于通过控制通过两个高压端口的流量从正常给料切换到清洗的清洗控制阀。 该装置还可以包括第二文丘里管T连接器和还原剂供应室，用于在其泵和还原剂通道管线中清除还原剂残余物。 该设备还可以包括清洗控制器，其根据发动机油或冷却剂温度触发清洗事件，并且在配料过程完成后控制清洗过程。
-
-
-
-
-
-
-
-
-
搜索结果
68 条记录 (耗时 0.024 秒)
