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公开(公告)号：US4690293A
公开(公告)日：1987-09-01
申请号：US856358
申请日：1986-04-28
申请人： Kouji Uranishi , Takaaki Itoh
发明人： Kouji Uranishi , Takaaki Itoh
CPC分类号： B60K15/0406 , Y10S220/33
摘要： A filler cap structure for a vehicular fuel tank particularly designed to prevent the discharge of fuel vapor to the ambient atmosphere and hence possible air pollution resulting therefrom upon filling of the fuel tank. The fuel tank has a filler tube closed by a filler cap. The filler tube is provided on its inner peripheral surface at a location inward of the bottom end of the filler cap with an annular seal seat. Defined by the annular seal seat, the inner peripheral surface of the fillter tube, and the bottom portion of the filler cap is an annular space which is connected through a communication tube with a canister. The annular space is sealed from the atmosphere by a first seal member disposed between the inner peripheral surface of the filler tube and the filler cap at a location outward of the annular space. The filler cap is provided on its bottom end with a second seal member which is adapted to be placed, upon complete closure of the filler cap against the filler tube, in sealing engagement with the annular seal seat on the inner peripheral surface of the filler tube for sealing of the fuel vapor in the fuel tank, the second seal member being moved away from the annular seal seat so as to place the fuel tank in communication with the canister when the filler cap is partially loosened.
摘要翻译： 一种用于车辆燃料箱的加注帽结构，其特别设计用于防止燃料蒸气排放到周围环境中，并因此在填充燃料箱时由此引起的空气污染。 燃料箱有一个由填料盖封闭的加注管。 填充管在其内周表面上设置有在填充盖的底端的内侧的位置处，具有环形密封座。 由环形密封座限定，填充管的内周表面和填料盖的底部是通过连通管与罐连接的环形空间。 所述环形空间通过设置在所述填充管的内周面和所述填充盖之间的位于所述环形空间外侧的位置处的第一密封构件与大气密封。 填充盖在其底端设置有第二密封构件，该第二密封构件适于在填充盖完全关闭加注管时与填充管的内周表面上的环形密封座密封接合 为了密封燃料箱中的燃料蒸汽，第二密封构件从环形密封座移开，以便当填料盖部分松动时，使燃料箱与罐连通。
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公开(公告)号：US4962744A
公开(公告)日：1990-10-16
申请号：US395804
申请日：1989-08-18
申请人： Kouji Uranishi , Takaaki Itou
发明人： Kouji Uranishi , Takaaki Itou
CPC分类号： F02M25/0809 , F02M2025/0845
摘要： A device for detecting a malfunction of a fuel evaporative purge system comprises a temperature sensor for detecting a temperature inside a canister. During the absorbing and purging operations of the purge system, the device calculates changes in the temperature when absorbing and purging and compares the temperature changes with predetermined values denoting that the purge system is operating normally, and determines whether a malfunction has occurred in the purge system from the result of the comparison.
摘要翻译： 用于检测燃料蒸发吹扫系统的故障的装置包括用于检测罐内的温度的温度传感器。 在清洗系统的吸收和净化操作期间，该装置计算吸收和清洗时的温度变化，并将温度变化与预定的清洗系统正常运行的预定值进行比较，并确定清洗系统是否发生故障 从比较的结果。
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公开(公告)号：US4949695A
公开(公告)日：1990-08-21
申请号：US384241
申请日：1989-07-21
申请人： Kouji Uranishi , Kouichi Osawa
发明人： Kouji Uranishi , Kouichi Osawa
CPC分类号： F02M25/0809 , F02M2025/0845
摘要： A device for detecting a malfunction of a fuel evaporative purge system comprises a pressure sensor for detecting gas pressure in a purge passage connecting a canister to an intake pipe, and an intake vacuum sensor for detecting a negative pressure in the intake pipe. In the purging condition, the device determines whether the obtained relationship between the detected negative pressure in the purge passage and the detected intake vacuum is within a predetermined area and judges that a malfunction has occurred in the system when the relationship is not within the predetermined area.
摘要翻译： 用于检测燃料蒸发吹扫系统的故障的装置包括用于检测连接罐与进气管的净化通道中的气体压力的压力传感器和用于检测进气管中的负压的进气真空传感器。 在清洗条件下，装置确定所获得的净化通道中的检测到的负压与检测到的进气真空之间的关系是否在预定区域内，并且当关系不在预定区域内时，判断系统中是否发生故障 。
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公开(公告)号：US5027780A
公开(公告)日：1991-07-02
申请号：US311654
申请日：1989-02-15
申请人： Kouji Uranishi , Takaaki Itou
发明人： Kouji Uranishi , Takaaki Itou
CPC分类号： F02D41/0042 , F02M25/08
摘要： An air-fuel ratio control device for an internal combustion engine, the device comprising a unit for detecting a first fuel purge condition from the canister after the fuel tank is filled with fuel, and for reducing the amount of fuel to be supplied to the engine when the first fuel purge condition is detected.
摘要翻译： 一种用于内燃机的空燃比控制装置，该装置包括用于在燃料箱充满燃料之后检测来自罐的第一燃料吹扫状态的单元，以及用于减少供给到发动机的燃料量 当检测到第一燃料清除条件时。
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5.发明授权Apparatus for controlling amount of fuel-vapor purged from canister to intake air system 失效用于控制从罐排出到进气系统的燃料蒸气量的装置
公开(公告)号：US4809667A
公开(公告)日：1989-03-07
申请号：US114642
申请日：1987-10-28
申请人： Kouji Uranishi , Takaaki Itou
发明人： Kouji Uranishi , Takaaki Itou
CPC分类号： F02D41/062 , F02D41/0032 , F02M25/08 , F02M25/0836
摘要： In a fuel-vapor emission control system of an internal combustion engine having a purge control valve, a first start of the engine is detected after a fuel supply to the fuel tank and the time from when the engine is started is measured. Then, the amount of fuel-vapor purged from a canister filled with an adsorbent for capturing fuel-vapor is decreased for a predetermined time period. As a result, when the engine is started for the first time after the fuel supply, the amount of fuel-vapor purged is decreased to thereby improve the emission characteristic and the driveability of the vehicle.
摘要翻译： 在具有净化控制阀的内燃机的燃料蒸汽排放控制系统中，在向燃料箱供给燃料之后，从发动机起动时刻起，检测发动机的第一启动。 然后，从填充有用于捕获燃料蒸气的吸附剂的罐排出的燃料蒸气的量减少预定时间段。 结果，当发动机在燃料供给之后第一次启动时，减少燃料蒸汽的量，从而提高车辆的排放特性和驾驶性能。
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公开(公告)号：US4700683A
公开(公告)日：1987-10-20
申请号：US838266
申请日：1986-03-10
申请人： Kouji Uranishi , Takaaki Itou
发明人： Kouji Uranishi , Takaaki Itou
CPC分类号： F02M25/0836
摘要： Device for purging evaporated fuel captured by a charcoal canister from a fuel supply system of an engine. A purge path connects the charcoal canister to an engine intake path, an ON-OFF valve and a fixed throttle are arranged in parallel in the purge path, and a solenoid valve is provided in the purge path between the engine intake path and the parallel ON-OFF valve and fixed throttle. The solenoid valve is opened only at low engine speeds and low engine temperatures. The ON-OFF valve is opened at engine loads higher than a predetermined engine load and is closed at engine loads lower than the predetermined engine load. In this way, purging of the evaporated fuel is cut off at low engine speeds and low engine temperatures, purging is occurs small quantity at low engine loads, and purging is increased at high engine loads, providing increased capturing ability of the charcoal canister without impairing drivability.
摘要翻译： 用于从发动机的燃料供应系统清除由炭罐捕获的蒸发燃料的装置。 吹扫路径将炭罐连接到发动机进气通道，在净化路径上并联布置有开关阀和固定节流阀，并且在发动机进气通道和并联ON之间的净化通道中设置有电磁阀 -OFF阀门和固定节流阀。 电磁阀仅在低发动机转速和低发动机温度下打开。 开关阀在比预定发动机负荷高的发动机负荷下打开，并且在低于预定发动机负荷的发动机负荷下闭合。 以这种方式，在低发动机速度和低发动机温度下，蒸发的燃料的清除被切断，在低发动机负荷下清洗发生少量，并且在高发动机负荷下清洗增加，提供增加的炭罐的捕获能力而不损害 驾驶性能。
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公开(公告)号：US4841940A
公开(公告)日：1989-06-27
申请号：US178373
申请日：1988-04-06
申请人： Kouji Uranishi , Takaaki Itou
发明人： Kouji Uranishi , Takaaki Itou
CPC分类号： F02M7/24 , F02D35/0076 , F02D41/0032 , F02D41/0042 , F02M25/08
摘要： An air-fuel ratio control device comprising an electric air bleed control valve which controls the amount of air fed into the fuel passage of the carburetor so that an air-fuel ratio becomes equal to the stoichiometric air-fuel ratio. The degree of opening of the air bleed control valve is increased as an electric current fed into the air bleed control valve is increased. Fuel vapor is fed into the intake passage from the canister. When the electric current fed into the air bleed control valve is increased and reaches a predetermined upper limit due to the supply of purge gas, the current fed into the air bleed control valve is instantaneously increased by a fixed amount.
摘要翻译： 一种空燃比控制装置，包括电气排气控制阀，其控制供给到化油器的燃料通道中的空气量，使得空燃比变得等于理论空燃比。 随着供给到排气控制阀的电流增加，排气控制阀的打开程度增加。 燃料蒸汽从罐进料到进气通道中。 当供给到排气控制阀的电流由于供给吹扫气体而增加并达到预定的上限时，供给到排气控制阀的电流立即增加固定量。
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公开(公告)号：US4834050A
公开(公告)日：1989-05-30
申请号：US177288
申请日：1988-04-01
申请人： Kouji Uranishi , Takaaki Itou
发明人： Kouji Uranishi , Takaaki Itou
CPC分类号： F02D41/0042 , F02D35/0061
摘要： An air-fuel ratio control device comprising an electric air bleed control valve which controls the amount of air fed into the fuel passage of the carburetor so that an air-fuel ratio becomes equal to the stoichiometric air-fuel ratio. The degree of opening of the air bleed control valve is increased as an electric current fed into the air bleed control valve is increased. Fuel vapor is fed into the intake passage from the canister. An auxiliary air is also fed into the intake passage via an electric auxiliary air bleed control valve. When the supply of fuel vapor to the intake passage is started, if the electric current fed into the air bleed control valve increases and reaches the upper limit, the auxiliary air bleed control valve is opened. As a result, the electric current fed into the air bleed control valve is lowered and can move up and down so that an air-fuel ratio becomes equal to the stoichiometric air-fuel ratio.
摘要翻译： 一种空燃比控制装置，包括电气排气控制阀，其控制供给到化油器的燃料通道中的空气量，使得空燃比变得等于理论空燃比。 随着供给到排气控制阀的电流增加，排气控制阀的打开程度增加。 燃料蒸汽从罐进料到进气通道中。 辅助空气也通过电动辅助排气控制阀进入进气通道。 当开始向进气通道供应燃料蒸汽时，如果供给到排气控制阀的电流增加并达到上限，则辅助排气控制阀打开。 结果，供给到排气控制阀的电流降低，能够上下移动，使得空燃比变得等于理论空燃比。
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公开(公告)号：US4838229A
公开(公告)日：1989-06-13
申请号：US177289
申请日：1988-04-01
申请人： Kouji Uranishi , Takaaki Itou
发明人： Kouji Uranishi , Takaaki Itou
CPC分类号： F02D41/0042 , F02D35/0061
摘要： An air-fuel ratio control device comprising an electric air bleed control valve which controls the amount of air fed into the fuel passage of the carburetor so that an air-fuel ratio becomes equal to the stoichiometric air-fuel ratio. The degree of opening of the air bleed control valve is increased as electric current fed into the air bleed control valve is increased. Fuel vapor is fed into the intake passage from the canister via a purge control valve. When the purge control valve is opened, and the rate of increase in the amount of current fed into the air bleed control valve exceeds a fixed rate, the current fed into the air bleed control valve is instantaneously increased by a fixed amount.
摘要翻译： 一种空燃比控制装置，包括电气排气控制阀，其控制供给到化油器的燃料通道中的空气量，使得空燃比变得等于理论空燃比。 随着供给到排气控制阀的电流增加，排气控制阀的打开程度增加。 燃料蒸气经由净化控制阀从罐进料到进气通道中。 当净化控制阀打开，并且供给到排气控制阀的电流量增加的速度超过固定速率时，供给到排气控制阀的电流立即增加固定量。
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