公开(公告)号：US07481101B2

公开(公告)日：2009-01-27

申请号：US11272733

申请日：2005-11-15

申请人： Takuji Matsubara ,  Toru Kidokoro ,  Yoshihiko Hyodo

发明人： Takuji Matsubara ,  Toru Kidokoro ,  Yoshihiko Hyodo

IPC分类号： F02M25/08 ,  G01M15/00 ,  G01M19/00

CPC分类号： F02M25/0818 ,  F02M25/089

摘要： A sealing valve 28 that controls a communication state between a fuel tank 10 and a canister 26 is provided. During stop of an internal combustion engine, the sealing valve 28 is generally closed, and the canister 26 is opened to the atmosphere. The sealing valve 28 is opened when the internal combustion engine is stopped, and differential pressure exceeding a valve opening determination value is generated between tank internal pressure and atmospheric pressure. A change in the tank internal pressure generated between before and after the sealing valve 28 is opened is detected. When the change in the tank internal pressure is below a predetermined determination value, closing failure of the sealing valve is determined.

摘要翻译： 设置有控制燃料箱10和罐26之间的连通状态的密封阀28。 在内燃机停止期间，密封阀28通常关闭，并且罐26向大气敞开。 当内燃机停止时，密封阀28打开，并且在油箱内部压力和大气压力之间产生超过阀开度判定值的压差。 检测在密封阀28打开之前和之后产生的罐内部压力的变化。 当罐内压力的变化低于预定的确定值时，确定密闭阀的关闭故障。

公开(公告)号：US20060162433A1

公开(公告)日：2006-07-27

申请号：US11387933

申请日：2006-03-24

申请人： Takuji Matsubara ,  Toru Kidokoro ,  Yoshihiko Hyodo

发明人： Takuji Matsubara ,  Toru Kidokoro ,  Yoshihiko Hyodo

IPC分类号： G01M19/00

CPC分类号： F02M25/0818

摘要： Disclosed is an evaporated fuel treatment device that includes a sealing valve installed between a fuel tank and a canister, a pump module pressure sensor for detecting the pressure on the canister side pressure, and a tank internal pressure sensor for detecting a tank internal pressure. Upon detection of a significant difference between the canister side pressure and tank internal pressure, the device concludes that no open failure exists in the sealing valve.

摘要翻译： 公开了一种蒸发燃料处理装置，其包括安装在燃料箱和罐之间的密封阀，用于检测罐侧压力的泵模块压力传感器，以及用于检测罐内压的罐内压传感器。 当检测到罐侧压力和油箱内部压力之间的显着差异时，该装置得出结论认为在密封阀中不存在开放故障。

公开(公告)号：US20060059979A1

公开(公告)日：2006-03-23

申请号：US11272733

申请日：2005-11-15

申请人： Takuji Matsubara ,  Toru Kidokoro ,  Yoshihiko Hyodo

发明人： Takuji Matsubara ,  Toru Kidokoro ,  Yoshihiko Hyodo

IPC分类号： G01M19/00

CPC分类号： F02M25/0818 ,  F02M25/089

摘要： A sealing valve 28 that controls a communication state between a fuel tank 10 and a canister 26 is provided. During stop of an internal combustion engine, the sealing valve 28 is generally closed, and the canister 26 is opened to the atmosphere. The sealing valve 28 is opened when the internal combustion engine is stopped, and differential pressure exceeding a valve opening determination value is generated between tank internal pressure and atmospheric pressure. A change in the tank internal pressure generated between before and after the sealing valve 28 is opened is detected. When the change in the tank internal pressure is below a predetermined determination value, closing failure of the sealing valve is determined.

公开(公告)号：US07213450B2

公开(公告)日：2007-05-08

申请号：US11272794

申请日：2005-11-15

申请人： Takuji Matsubara ,  Toru Kidokoro ,  Yoshihiko Hyodo

发明人： Takuji Matsubara ,  Toru Kidokoro ,  Yoshihiko Hyodo

IPC分类号： G01M19/00

CPC分类号： F02M25/0818 ,  F02M25/089

摘要： A sealing valve 28 that controls a communication state between a fuel tank 10 and a canister 26 is provided. During stop of an internal combustion engine, the sealing valve 28 is generally closed, and the canister 26 is opened to the atmosphere. The sealing valve 28 is opened when the internal combustion engine is stopped, and differential pressure exceeding a valve opening determination value is generated between tank internal pressure and atmospheric pressure. A change in the tank internal pressure generated between before and after the sealing valve 28 is opened is detected. When the change in the tank internal pressure is below a predetermined determination value, closing failure of the sealing valve is determined.

摘要翻译： 设置有控制燃料箱10和罐26之间的连通状态的密封阀28。 在内燃机停止期间，密封阀28通常关闭，并且罐26向大气敞开。 当内燃机停止时，密封阀28打开，并且在油箱内部压力和大气压力之间产生超过阀开度判定值的压差。 检测在密封阀28打开之前和之后产生的罐内部压力的变化。 当罐内压力的变化低于预定的确定值时，确定密闭阀的关闭故障。

公开(公告)号：US07082815B1

公开(公告)日：2006-08-01

申请号：US11387933

申请日：2006-03-24

申请人： Takuji Matsubara ,  Toru Kidokoro ,  Yoshihiko Hyodo

发明人： Takuji Matsubara ,  Toru Kidokoro ,  Yoshihiko Hyodo

IPC分类号： G01M15/00

CPC分类号： F02M25/0818

摘要： Disclosed is an evaporated fuel treatment device that includes a sealing valve installed between a fuel tank and a canister, a pump module pressure sensor for detecting the pressure on the canister side pressure, and a tank internal pressure sensor for detecting a tank internal pressure. Upon detection of a significant difference between the canister side pressure and tank internal pressure, the device concludes that no open failure exists in the sealing valve.

公开(公告)号：US06988396B2

公开(公告)日：2006-01-24

申请号：US10700690

申请日：2003-11-05

申请人： Takuji Matsubara ,  Toru Kidokoro ,  Yoshihiko Hyodo

发明人： Takuji Matsubara ,  Toru Kidokoro ,  Yoshihiko Hyodo

IPC分类号： G01M19/00

CPC分类号： F02M25/0818 ,  F02M25/089

摘要： A sealing valve 28 that controls a communication state between a fuel tank 10 and a canister 26 is provided. During stop of an internal combustion engine, the sealing valve 28 is generally closed, and the canister 26 is opened to the atmosphere. The sealing valve 28 is opened when the internal combustion engine is stopped, and differential pressure exceeding a valve opening determination value is generated between tank internal pressure and atmospheric pressure. A change in the tank internal pressure generated between before and after the sealing valve 28 is opened is detected. When the change in the tank internal pressure is below a predetermined determination value, closing failure of the sealing valve is determined.

公开(公告)号：US06796295B2

公开(公告)日：2004-09-28

申请号：US10700568

申请日：2003-11-05

申请人： Toru Kidokoro ,  Takuji Matsubara ,  Yoshihiko Hyodo

发明人： Toru Kidokoro ,  Takuji Matsubara ,  Yoshihiko Hyodo

IPC分类号： F02M3300

CPC分类号： F02M25/0836 ,  F02M25/089

摘要： A vapor passage 20 that makes communication between a fuel tank 10 and a canister 26 is provided. A purge passage 34 that makes communication between the canister 26 and an intake passage 38 of an internal combustion engine is provided. A sealing valve 28 that controls a communication state of the vapor passage 20 and a purge VSV 36 that controls a communication state of the purge passage 34 are provided. A tank internal pressure sensor 12 detects tank internal pressure Pt. The purge VSV 36 is controlled to purge evaporated fuel into the intake passage 38 during operation of the internal combustion engine. The sealing valve 28 is opened/closed depending on whether a predetermined purge is performed in an area where the tank internal pressure Pt is positive.

摘要翻译： 设置有使燃料箱10与罐26连通的蒸气通路20。 提供使罐体26与内燃机的进气通路38连通的排气通路34。 设置有控制蒸气通路20的通气状态的密封阀28和控制清洗通路34的连通状态的吹扫VSV36。 罐内压传感器12检测罐内压Pt。 控制净化VSV 36以在内燃机的运行期间将蒸发的燃料吹扫到进气通道38中。 取决于在罐内压力Pt为正的区域中是否进行了预定的吹扫来打开/关闭密封阀28。

公开(公告)号：US07043972B2

公开(公告)日：2006-05-16

申请号：US10700669

申请日：2003-11-05

申请人： Takuji Matsubara ,  Toru Kidokoro ,  Yoshihiko Hyodo

发明人： Takuji Matsubara ,  Toru Kidokoro ,  Yoshihiko Hyodo

IPC分类号： G01M15/00

CPC分类号： F02M25/0818

摘要： Disclosed is an evaporated fuel treatment device that includes a sealing valve installed between a fuel tank and a canister, a pump module pressure sensor for detecting the pressure on the canister side pressure, and a tank internal pressure sensor for detecting a tank internal pressure. Upon detection of a significant difference between the canister side pressure and tank internal pressure, the device concludes that no open failure exists in the sealing valve.

摘要翻译： 公开了一种蒸发燃料处理装置，其包括安装在燃料箱和罐之间的密封阀，用于检测罐侧压力的泵模块压力传感器，以及用于检测罐内压的罐内压传感器。 当检测到罐侧压力和油箱内部压力之间的显着差异时，该装置得出结论认为在密封阀中不存在开放故障。

公开(公告)号：US20060059980A1

公开(公告)日：2006-03-23

申请号：US11272794

申请日：2005-11-15

申请人： Takuji Matsubara ,  Toru Kidokoro ,  Yoshihiko Hyodo

发明人： Takuji Matsubara ,  Toru Kidokoro ,  Yoshihiko Hyodo

IPC分类号： G01M19/00

CPC分类号： F02M25/0818 ,  F02M25/089

摘要： A sealing valve 28 that controls a communication state between a fuel tank 10 and a canister 26 is provided. During stop of an internal combustion engine, the sealing valve 28 is generally closed, and the canister 26 is opened to the atmosphere. The sealing valve 28 is opened when the internal combustion engine is stopped, and differential pressure exceeding a valve opening determination value is generated between tank internal pressure and atmospheric pressure. A change in the tank internal pressure generated between before and after the sealing valve 28 is opened is detected. When the change in the tank internal pressure is below a predetermined determination value, closing failure of the sealing valve is determined.

公开(公告)号：US06837224B2

公开(公告)日：2005-01-04

申请号：US10700827

申请日：2003-11-05

申请人： Toru Kidokoro ,  Takuji Matsubara ,  Yoshihiko Hyodo

发明人： Toru Kidokoro ,  Takuji Matsubara ,  Yoshihiko Hyodo

IPC分类号： F02M25/08 ,  F02M37/00 ,  G01M99/00

CPC分类号： F02M25/0809 ,  F02M25/0827

摘要： A sealing valve is installed between a fuel tank and a canister. A purge VSV is installed between the canister and an intake path. A pump module unit is installed to introduce a negative pressure into the canister. The negative pressure is introduced into the canister while the purge VSV and sealing valve are closed. An open failure diagnostic check is conducted on the sealing valve in accordance with the prevalent canister side pressure. A close failure diagnostic check is conducted on the sealing valve by making use of a differential pressure that is generated across the sealing valve as a result of the open failure diagnostic check.