公开(公告)号：US07114372B2

公开(公告)日：2006-10-03

申请号：US10923786

申请日：2004-08-24

申请人： Masao Kano ,  Mitsuyuki Kobayashi ,  Yoshichika Yamada

发明人： Masao Kano ,  Mitsuyuki Kobayashi ,  Yoshichika Yamada

IPC分类号： G01M3/04

CPC分类号： F02M25/0809

摘要： A fuel vapor leak check module has a pump discharging an air through an outlet. When the fuel vapor check module is mounted on a vehicle, an outlet of the pump is opened downwardly in the gravity direction. A housing has an opening provided above the outlet. The foreign particles discharged from the outlet of the pump are deposited on the inner surface of the housing. The foreign particles hardly reach to the opening even if the discharged air pushes up the foreign particles. Thus, the foreign particles are separated from the discharged air by the gravity to avoid the scatter thereof.

摘要翻译： 燃料蒸气泄漏检查模块具有通过出口排出空气的泵。 当燃料蒸汽检查模块安装在车辆上时，泵的出口在重力方向向下打开。 外壳在出口的上方设有开口。 从泵的出口排出的外来颗粒沉积在壳体的内表面上。 即使排出的空气推出异物，异物也难以达到开口。 因此，外来颗粒被重力与排出的空气分离以避免其散射。

公开(公告)号：US20060144373A1

公开(公告)日：2006-07-06

申请号：US11295729

申请日：2005-12-07

申请人： Masao Kano ,  Shinsuke Takakura ,  Noriyasu Amano ,  Sinsuke Kiyomiya ,  Yuusaku Nishimura

发明人： Masao Kano ,  Shinsuke Takakura ,  Noriyasu Amano ,  Sinsuke Kiyomiya ,  Yuusaku Nishimura

IPC分类号： F02M33/04

CPC分类号： F02D41/0045 ,  F02D41/004 ,  F02D2200/703 ,  F02M25/089

摘要： A fuel vapor processing apparatus includes a canister, a purge passage, a detection passage including an atmosphere passage and a restrictor, a passage changing valve for changing the connection passage of the detection passage between the purge passage and the atmosphere passage, a pump connecting with the detection passage on the opposite side of the passage changing valve across the restrictor, a pressure sensor for detecting a pressure between the restrictor and the pump, and an ECU for computing the concentration of fuel vapor. When the passage changing valve causes the purge passage to connect with the detection passage and the pump reduces pressure in the detection passage to pass the air-fuel mixture through the restrictor, the pressure sensor detects the pressure during a detection period of time that elapses after the air-fuel mixture passes through the restrictor until the air-fuel mixture reaches the pump.

摘要翻译： 一种燃料蒸汽处理装置，包括罐，净化通道，包括大气通道和限流器的检测通道，用于改变在净化通道和大气通道之间的检测通道的连接通道的通道改变阀， 在通过限制器的通道改变阀的相对侧的检测通道，用于检测限制器和泵之间的压力的压力传感器和用于计算燃料蒸气浓度的ECU。 当通道切换阀使清扫通道与检测通道连接时，泵减小检测通道中的压力以使空气 - 燃料混合物通过限流器，压力传感器在经过的检测时段之后检测压力 空气 - 燃料混合物通过限流器直到空气 - 燃料混合物到达泵。

公开(公告)号：US07066017B2

公开(公告)日：2006-06-27

申请号：US10270155

申请日：2002-10-15

申请人： Masao Kano ,  Kenji Nagasaki

发明人： Masao Kano ,  Kenji Nagasaki

IPC分类号： G01M15/00

CPC分类号： F02M25/0809 ,  F02M25/0836

摘要： Pressure leakage in an evaporated fuel control system having a canister for absorbing evaporated fuel in a fuel tank is detected after an engine is stopped and a temperature in the system is stabilized. In the leakage detecting process, communication between the system and an atmospheric pressure is shut-off by closing an electromagnetic valve connected to the canister. The electromagnetic valve is closed by once supplying a full voltage thereto, and the closed-state is maintained by intermittently supplying a voltage in a duty-ratio-controlled manner or by supplying a lower voltage. Thus, power consumption for maintaining the closed-state is reduced.

公开(公告)号：US20060042605A1

公开(公告)日：2006-03-02

申请号：US11259108

申请日：2005-10-27

申请人： Noriyasu Amano ,  Takanobu Kawano ,  Koichi Inagaki ,  Nobuhiko Koyama ,  Masao Kano ,  Shinsuke Takakura ,  Yoshichika Yamada

发明人： Noriyasu Amano ,  Takanobu Kawano ,  Koichi Inagaki ,  Nobuhiko Koyama ,  Masao Kano ,  Shinsuke Takakura ,  Yoshichika Yamada

IPC分类号： F02M25/08

CPC分类号： F02M25/089 ,  F02M25/0809 ,  F02M25/0827 ,  F02M25/0872

摘要： A pump generates a gas flow within a measurement passage having an orifice. A differential pressure sensor detects a pressure difference between both ends of the orifice. Switching valves are disposed in the measurement passage to create a first concentration measurement state in which the measurement passage is opened at both ends thereof and the gas flowing through the measurement passage is the atmosphere, and a second concentration measurement state in which the measurement passage is in communication at both ends thereof with a canister and the gas flowing through the measurement passage is a fuel vapor-containing air-fuel mixture provided from the canister. An ECU calculates a fuel vapor concentration by based on a pressure difference detected in the first concentration measurement state and a pressure difference detected in the second concentration measurement state.

摘要翻译： 泵在具有孔口的测量通道内产生气流。 差压传感器检测孔口两端之间的压力差。 切换阀设置在测量通道中以产生第一浓度测量状态，其中测量通道在其两端开口，并且流过测量通道的气体是大气;以及第二浓度测量状态，其中测量通道是 在其两端与罐连通，并且流过测量通道的气体是从罐提供的含燃料蒸气的空气 - 燃料混合物。 ECU根据在第一浓度测量状态下检测的压力差和在第二浓度测量状态下检测的压力差来计算燃料蒸气浓度。

公开(公告)号：US07004013B2

公开(公告)日：2006-02-28

申请号：US10459440

申请日：2003-06-12

申请人： Mitsuyuki Kobayashi ,  Yoshichika Yamada ,  Masao Kano ,  Kenji Nagasaki

发明人： Mitsuyuki Kobayashi ,  Yoshichika Yamada ,  Masao Kano ,  Kenji Nagasaki

IPC分类号： G01M3/04

CPC分类号： F02M25/0809

摘要： An evaporative emission leak detection system provides for detecting a leakage of a fuel vapor evaporating in a fuel tank by using a pressure difference between an inside and outside of the fuel tank. The system includes a pump for providing the pressure difference between the inside and outside of the fuel tank, a brushless motor for operating the pump, a first passage connecting to the fuel tank, a second passage connecting to the outside of the fuel tank, and a switching device for switching connections between the pump and at least one of the first passage and the second passage. The first passage has an adsorbent for adsorbing the fuel vapor. This system ensures a long life time and high accuracy of the leak detection.

摘要翻译： 蒸发排放物泄漏检测系统通过使用燃料箱的内部和外部之间的压力差来检测在燃料箱中蒸发的燃料蒸气的泄漏。 该系统包括用于提供燃料箱内部和外部之间的压力差的泵，用于操作泵的无刷电动机，连接到燃料箱的第一通道，连接到燃料箱外部的第二通道，以及 用于切换泵与第一通道和第二通道中的至少一个之间的连接的开关装置。 第一通道具有用于吸附燃料蒸气的吸附剂。 该系统确保了长时间的使用和高精度的泄漏检测。

公开(公告)号：US20060016253A1

公开(公告)日：2006-01-26

申请号：US11183742

申请日：2005-07-19

申请人： Mitsuyuki Kobayashi ,  Yoshichika Yamada ,  Masao Kano ,  Koichi Inagaki

发明人： Mitsuyuki Kobayashi ,  Yoshichika Yamada ,  Masao Kano ,  Koichi Inagaki

IPC分类号： G01M19/00

CPC分类号： F02M25/0818 ,  F02M25/089 ,  F02M2025/0845

摘要： A leakage detecting device is connected to an evaporating fuel processing apparatus to detect leakage of evaporating fuel in a ventilation apparatus that includes an electric pump, a fuel tank, and a filter. The electric pump includes a pump portion and a motor portion. The pump portion is capable of generating at least one of pressurizing force and de-pressurizing force. The motor portion drives the pump portion. The filter absorbs fuel evaporating in the fuel tank. The leakage detecting device generates pressure difference between the inside of the ventilation apparatus and the outside of the ventilation apparatus in accordance with the pressurizing force and the de-pressurizing force generated using the electric pump to detect a leakage condition of the ventilation apparatus. The leakage detecting device includes a rotation speed controlling means that controls rotation speed of the motor portion at a predetermined rotation speed.

摘要翻译： 泄漏检测装置连接到蒸发燃料处理装置，以检测包括电动泵，燃料箱和过滤器的通风装置中的蒸发燃料的泄漏。 电动泵包括泵部和电动机部。 泵部能够产生加压力和减压力中的至少一个。 马达部分驱动泵部分。 过滤器吸收在燃料箱中蒸发的燃料。 泄漏检测装置根据使用电动泵产生的加压力和减压力，在通气装置的内部和通气装置的外部之间产生压力差，以检测通气装置的泄漏状况。 泄漏检测装置包括以预定旋转速度控制马达部分的转速的转速控制装置。

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

IPC分类号： F02M25/08 ,  G01M3/04 ,  G01M3/26

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。

公开(公告)号：US06834535B2

公开(公告)日：2004-12-28

申请号：US10242440

申请日：2002-09-13

申请人： Masao Kano ,  Yasuhiro Yamashita

发明人： Masao Kano ,  Yasuhiro Yamashita

IPC分类号： G01M1500

CPC分类号： F02M25/0818 ,  F02M2025/0845

摘要： A pressure-changing device of a leak check system for a fuel vapor treatment system has a pressure chamber formed in a peripheral space of a communicating path connecting a pump with an electromagnetic valve, the pressure chamber being deviated from flow delivered by the pump. The electromagnetic valve is opened to connect the communicating path with a canister. Then, a purge valve is closed and the pump is turned on to change pressure in a fuel vapor path. A pressure sensor attached on a side wall of the pressure chamber detects pressure in the communicating path to determine pressure in the fuel vapor path. The leak check system judges existence of leak in the fuel vapor treatment system from pressure in the fuel vapor path.

摘要翻译： 用于燃料蒸气处理系统的泄漏检查系统的压力改变装置具有形成在连接泵与电磁阀的连通路径的周边空间中的压力室，所述压力室偏离由泵输送的流量。 打开电磁阀以将通信路径与罐连接。 然后，关闭排气阀并打开泵以改变燃料蒸气路径中的压力。 安装在压力室的侧壁上的压力传感器检测连通路径中的压力，以确定燃料蒸气路径中的压力。 泄漏检查系统根据燃料蒸气路径中的压力判断燃料蒸气处理系统中的泄漏的存在。

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。

公开(公告)号：US07469686B2

公开(公告)日：2008-12-30

申请号：US11401464

申请日：2006-04-11

申请人： Masao Kano ,  Shinsuke Takakura ,  Noriyasu Amano

发明人： Masao Kano ,  Shinsuke Takakura ,  Noriyasu Amano

IPC分类号： F02M33/02 ,  F02M33/04

CPC分类号： F02M25/0809 ,  F02M25/0827

摘要： A leak detecting apparatus includes a canister adsorbing a fuel vapor evaporated in a fuel tank, a measure passage, a pump connected with the canister through the measure passage, and a pressure senor detecting a pressure in the measure passage. The pump depressurizes the measure passage, the canister, and the fuel tank so that a leakage of the fuel vapor is detected. When a blow-by of the fuel vapor is arisen, the pump is stopped to forcibly terminate a depressurization.

摘要翻译： 泄漏检测装置包括吸附在燃料箱中蒸发的燃料蒸气的罐，测量通道，通过测量通道与罐连接的泵以及检测测量通道中的压力的​​压力传感器。 泵对测量通道，罐和燃料箱进行减压，从而检测到燃料蒸气的泄漏。 当出现燃料蒸汽的窜动时，停止泵以强制终止减压。