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公开(公告)号：US06988391B2
公开(公告)日：2006-01-24
申请号：US11142330
申请日：2005-06-02
申请人： Noriyasu Amano , Naoya Kato , Hideaki Itakura , Masao Kano
发明人： Noriyasu Amano , Naoya Kato , Hideaki Itakura , Masao Kano
IPC分类号： G01M3/04
CPC分类号： F02M25/0809 , F02M25/0818 , F02M25/0827 , F02M25/089
摘要： A fuel vapor leakage inspection apparatus utilizes a fuel tank, an adsorption container which houses an adsorbent for adsorbing fuel vapor generated in the fuel tank, and an exhaust device for communicating between the adsorption container and an intake pipe. Furthermore, the apparatus utilizes a pressure means that pressurizes or depressurizes a fuel vapor path formed from the fuel tank through the adsorption container to the exhaust device. A leakage detection means detects leakage from the fuel vapor path after the fuel vapor path is pressurized or depressurized by the pressure means while a calculation means calculates an amount of fuel vapor adsorbed, and a control means determines if the pressure means should execute leakage inspection of the fuel vapor path in accordance with the amount of the fuel vapor calculated by the calculation means.
摘要翻译： 燃料蒸汽泄漏检查装置利用燃料箱，容纳吸附在燃料箱中的燃料蒸汽的吸附剂的吸附容器和吸附容器与吸气管之间连通的排气装置。 此外，该装置利用对由燃料箱形成的燃料蒸气路径通过吸附容器向排气装置进行加压或减压的压力装置。 泄漏检测装置在计算装置计算吸附的燃料蒸汽量的同时，在燃料蒸汽路径被压力装置加压或减压之后，检测来自燃料蒸气路径的泄漏，并且控制装置确定压力装置是否应执行泄漏检查 所述燃料蒸汽通道根据由所述计算装置计算的所述燃料蒸汽的量。
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公开(公告)号：US06945093B2
公开(公告)日：2005-09-20
申请号：US10662481
申请日：2003-09-16
申请人： Noriyasu Amano , Naoya Kato , Hideaki Itakura , Masao Kano
发明人： Noriyasu Amano , Naoya Kato , Hideaki Itakura , Masao Kano
CPC分类号： F02M25/0809 , F02M25/0818 , F02M25/0827 , F02M25/089
摘要： A fuel vapor leakage inspection apparatus utilizes a fuel tank, an adsorption container which houses an adsorbent for adsorbing fuel vapor generated in the fuel tank, and an exhaust device for communicating between the adsorption container and an intake pipe. Furthermore, the apparatus utilizes a pressure means that pressurizes or depressurizes a fuel vapor path formed from the fuel tank through the adsorption container to the exhaust device. A leakage detection means detects leakage from the fuel vapor path after the fuel vapor path is pressurized or depressurized by the pressure means while a calculation means calculates an amount of fuel vapor adsorbed, and a control means determines if the pressure means should execute leakage inspection of the fuel vapor path in accordance with the amount of the fuel vapor calculated by the calculation means.
摘要翻译： 燃料蒸汽泄漏检查装置利用燃料箱，容纳吸附在燃料箱中的燃料蒸汽的吸附剂的吸附容器和吸附容器与吸气管之间连通的排气装置。 此外，该装置利用对由燃料箱形成的燃料蒸气路径通过吸附容器向排气装置进行加压或减压的压力装置。 泄漏检测装置在计算装置计算吸附的燃料蒸汽量的同时，在燃料蒸汽路径被压力装置加压或减压之后，检测来自燃料蒸气路径的泄漏，并且控制装置确定压力装置是否应执行泄漏检查 所述燃料蒸汽通道根据由所述计算装置计算的所述燃料蒸汽的量。
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3.发明授权Failure diagnosis method and failure diagnosis device of evaporated fuel treating unit 失效蒸发燃料处理单元的故障诊断方法和故障诊断装置公开(公告)号：US06817232B2
公开(公告)日：2004-11-16
申请号：US10408100
申请日：2003-04-08
申请人： Noriyasu Amano , Hideaki Itakura , Naoya Kato , Masao Kano
发明人： Noriyasu Amano , Hideaki Itakura , Naoya Kato , Masao Kano
IPC分类号： G01M1500
CPC分类号： F02M25/0809
摘要： An apparatus detects leak in a fuel vapor treatment system which is referred to as an evaporation system. The apparatus measures a required time T2 that is required for decreasing pressure in the evaporation system from P0 to P1 while opening a base leak hole that provides known amount of leak. Then, a required time T1 that is required for decreasing pressure from P0 to P1 is measured while closing the base leak hole. The apparatus compares the required times T1 and T2 in order to detect a leak other than the base leak hole. In this process, a specified coefficient that is defined in accordance with the base leak hole is taken into consideration. It is possible to detect the leak of the evaporation system with high accuracy even when the amount of remaining fuel is extremely large.
摘要翻译： 一种装置检测被称为蒸发系统的燃料蒸汽处理系统中的泄漏。 该设备测量在将蒸发系统中的压力从P0减小到P1所需的时间T2，同时打开提供已知泄漏量的基本泄漏孔。 然后，在关闭基底泄漏孔的同时测量从P0到P1的压力下降所需要的时间T1。 该装置比较所需时间T1和T2，以便检测除基底泄漏孔之外的泄漏。 在该过程中，考虑到根据基本泄漏孔限定的规定系数。 即使剩余燃料量非常大，也可以高精度地检测蒸发系统的泄漏。
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4.发明授权Failure diagnosis method and failure diagnosis device of evaporated fuel treating unit 失效蒸发燃料处理单元的故障诊断方法和故障诊断装置公开(公告)号：US06966215B2
公开(公告)日：2005-11-22
申请号：US10964648
申请日：2004-10-15
申请人： Noriyasu Amano , Hideaki Itakura , Naoya Kato , Masao Kano
发明人： Noriyasu Amano , Hideaki Itakura , Naoya Kato , Masao Kano
CPC分类号： F02M25/0809
摘要： An apparatus detects leak in a fuel vapor treatment system which is referred to as an evaporation system. The apparatus measures a required time T2 that is required for decreasing pressure in the evaporation system from P0 to P1 while opening a base leak hole that provides known amount of leak. Then, a required time T1 that is required for decreasing pressure from P0 to P1 is measured while closing the base leak hole. The apparatus compares the required times T1 and T2 in order to detect a leak other than the base leak hole. In this process, a specified coefficient that is defined in accordance with the base leak hole is taken into consideration. It is possible to detect the leak of the evaporation system with high accuracy even when the amount of remaining fuel is extremely large.
摘要翻译： 一种装置检测被称为蒸发系统的燃料蒸汽处理系统中的泄漏。 该装置测量在打开提供已知量的泄漏量的基础泄漏孔时，从P 0至P 1减小蒸发系统中的压力所需的时间T 2。 然后，在关闭基底泄漏孔的同时测量从P 0至P 1减小压力所需的所需时间T 1。 该装置比较所需时间T 1和T 2，以便检测除基底泄漏孔之外的泄漏。 在该过程中，考虑到根据基本泄漏孔限定的规定系数。 即使剩余燃料量非常大，也可以高精度地检测蒸发系统的泄漏。
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公开(公告)号：US20050217348A1
公开(公告)日：2005-10-06
申请号：US11142330
申请日：2005-06-02
申请人： Noriyasu Amano , Naoya Kato , Hideaki Itakura , Masao Kano
发明人： Noriyasu Amano , Naoya Kato , Hideaki Itakura , Masao Kano
CPC分类号： F02M25/0809 , F02M25/0818 , F02M25/0827 , F02M25/089
摘要： A fuel vapor leakage inspection apparatus utilizes a fuel tank, an adsorption container which houses an adsorbent for adsorbing fuel vapor generated in the fuel tank, and an exhaust device for communicating between the adsorption container and an intake pipe. Furthermore, the apparatus utilizes a pressure means that pressurizes or depressurizes a fuel vapor path formed from the fuel tank through the adsorption container to the exhaust device. A leakage detection means detects leakage from the fuel vapor path after the fuel vapor path is pressurized or depressurized by the pressure means while a calculation means calculates an amount of fuel vapor adsorbed, and a control means determines if the pressure means should execute leakage inspection of the fuel vapor path in accordance with the amount of the fuel vapor calculated by the calculation means.
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6.发明申请Failure diagnosis method and failure diagnosis device of evaporated fuel treating unit 失效蒸发燃料处理单元的故障诊断方法和故障诊断装置公开(公告)号：US20050044942A1
公开(公告)日：2005-03-03
申请号：US10964648
申请日：2004-10-15
申请人： Noriyasu Amano , Hideaki Itakura , Naoya Kato , Masao Kano
发明人： Noriyasu Amano , Hideaki Itakura , Naoya Kato , Masao Kano
CPC分类号： F02M25/0809
摘要： An apparatus detects leak in a fuel vapor treatment system which is referred to as an evaporation system. The apparatus measures a required time T2 that is required for decreasing pressure in the evaporation system from P0 to P1 while opening a base leak hole that provides known amount of leak. Then, a required time T1 that is required for decreasing pressure from P0 to P1 is measured while closing the base leak hole. The apparatus compares the required times T1 and T2 in order to detect a leak other than the base leak hole. In this process, a specified coefficient that is defined in accordance with the base leak hole is taken into consideration. It is possible to detect the leak of the evaporation system with high accuracy even when the amount of remaining fuel is extremely large.
摘要翻译： 一种装置检测被称为蒸发系统的燃料蒸汽处理系统中的泄漏。 该设备测量在将蒸发系统中的压力从P0减小到P1所需要的时间T2，同时打开提供已知泄漏量的基本泄漏孔。 然后，在关闭基底泄漏孔的同时测量从P0到P1的压力下降所需要的时间T1。 该装置比较所需时间T1和T2，以便检测除基底泄漏孔之外的泄漏。 在该过程中，考虑到根据基本泄漏孔限定的规定系数。 即使剩余燃料量非常大，也可以高精度地检测蒸发系统的泄漏。
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公开(公告)号：US06823851B2
公开(公告)日：2004-11-30
申请号：US10351377
申请日：2003-01-27
申请人： Noriyasu Amano , Hideaki Itakura , Naoya Kato , Masao Kano
发明人： Noriyasu Amano , Hideaki Itakura , Naoya Kato , Masao Kano
IPC分类号： F02M2509
CPC分类号： F02M25/08
摘要： When purge control of fuel vapor, which is released from a fuel tank and is then adsorbed and retained in a fuel adsorption layer of a canister, is performed through ON/OFF control of a purge valve, ON/OFF of a heater plate received in the canister is controlled based on a purge fuel vapor concentration estimated through air-fuel ratio control operation of an engine. In this way, a sensor for measuring the purge fuel vapor concentration of the fuel vapor conducted from the canister to an intake passage of the engine can be eliminated.
摘要翻译： 当从燃料箱释放并被吸附并保留在罐的燃料吸附层中的燃料蒸气的清除控制通过清洗阀的开/关控制进行时，通过接收到的加热器板的ON / OFF 基于通过发动机的空燃比控制运算估计的吹扫燃料蒸汽浓度来控制罐。 以这种方式，可以消除用于测量从罐传导到发动机的进气通道的燃料蒸气的吹扫燃料蒸汽浓度的传感器。
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公开(公告)号：US06634343B2
公开(公告)日：2003-10-21
申请号：US09996779
申请日：2001-11-30
申请人： Masao Kano , Nobuhiko Koyama , Hideki Kato , Noriyasu Amano , Hideaki Itakura , Naoya Kato
发明人： Masao Kano , Nobuhiko Koyama , Hideki Kato , Noriyasu Amano , Hideaki Itakura , Naoya Kato
IPC分类号： F02M5502
CPC分类号： F02M25/0818 , F02M25/089
摘要： An evaporated fuel adsorbed by an adsorbing member of a canister is compulsively desorbed by driving of a purge pump and is introduced into an intake passage of an internal combustion engine. In this instance, intake pulsation of the intake passage of an internal combustion engine is introduced into a driving chamber of the purge pump and a partition is moved, so that the capacity of a pump chamber is varied. In other words, the purge pump conducts its pump operation by utilizing the movement of the partition resulting from the introduction of intake pulsation of the intake passage of the internal combustion engine, and a power loss can be thus reduced. When a pressure difference is small between the intake pressure inside the intake passage of the internal combustion engine and the pressure on the canister side, too, a desired purge flow rate can be secured in accordance with the operating condition of the internal combustion engine.
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公开(公告)号：US06701902B2
公开(公告)日：2004-03-09
申请号：US10186729
申请日：2002-07-02
申请人： Nobuhiko Koyama , Masao Kano , Noriyasu Amano , Hideaki Itakura , Susumu Abe
发明人： Nobuhiko Koyama , Masao Kano , Noriyasu Amano , Hideaki Itakura , Susumu Abe
IPC分类号： F02M3704
CPC分类号： F02M25/08
摘要： A canister for a vehicular evaporative emission control system has activated carbon and heating means. The heating means heats the activated carbon particles. The activated carbon particles are characterized by the following properties. Pore volume is 0.28 ml/ml or more. Average pore radius is in a range of 10.5 Angstroms to 12.0 Angstroms. Particle diameter of the activated carbon is in a range of 1.0 mm to 1.6 mm. The activated carbon particles provide high performances on both of adsorption and desorption.
摘要翻译： 用于车辆蒸发排放控制系统的罐具有活性炭和加热装置。 加热装置加热活性炭颗粒。 活性炭颗粒的特征在于以下性质。 孔体积为0.28ml / ml以上。 平均孔半径在10.5埃至12.0埃的范围内。 活性炭的粒径在1.0mm〜1.6mm的范围内。 活性炭颗粒在吸附和解吸两个方面提供高性能。
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公开(公告)号：US06732718B2
公开(公告)日：2004-05-11
申请号：US10084979
申请日：2002-03-01
IPC分类号： F02M2508
CPC分类号： F04B45/041 , F02M25/08 , F02M25/0836 , F02M2025/0845 , F04B45/047
摘要： In a double-acting diaphragm pump, a diaphragm is provided to divide a pump body into two pump chambers. An electromagnetic-type reciprocating actuator is provided in a housing hermetically integrated with the pump body. Different from an electric-type pump, the actuator is integrally mounted on the double-acting diaphragm pump and an entire system is hermetically sealed. Therefore, even if the diaphragm is torn, fuel vapor is prevented from leaking outside. Additionally, four check valves are provided to control the discharge of vapor from a canister side to an engine side. These check valves may employ a reed to control vapor flow or a spring and plate to control flow. In addition, since the pump may be a double-acting type, a large discharge volume is obtained and the pump can be made smaller. The pump may also be a non double-acting type.
摘要翻译： 在双作用隔膜泵中，提供隔膜以将泵体分成两个泵室。 电磁式往复式致动器设置在与泵体密封结合的壳体中。 与电动泵不同，致动器整体安装在双作用隔膜泵上，整个系统被气密密封。 因此，即使膜片被撕裂，也能防止燃料蒸汽泄漏到外部。 另外，设有四个止回阀以控制从罐侧到发动机侧的蒸气排放。 这些止回阀可以采用芦苇来控制蒸汽流，或者弹簧和板来控制流量。 此外，由于泵可以是双作用型，因此可以获得大的排出量，并且可以使泵更小。 泵也可以是非双作用型。
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