公开(公告)号：US06405718B1

公开(公告)日：2002-06-18

申请号：US09613766

申请日：2000-07-11

申请人： Mamoru Yoshioka ,  Yoshihiko Hyodo ,  Naoya Takagi

发明人： Mamoru Yoshioka ,  Yoshihiko Hyodo ,  Naoya Takagi

IPC分类号： F02M3704

CPC分类号： F02M25/0809

摘要： A fuel vapor purge system connects a fuel tank with a canister and collects fuel vapor generated in the fuel tank by the canister. The purge system purges the collected fuel vapor to an intake passage of an internal combustion engine through a purge passage. A change of pressure due to fuel vapor generation in the fuel tank is measured while the purge passage is sealed. The pressure in the purge passage is differentiated from the pressure outside the purge passage and the purge passage is sealed. In this state, a change of the pressure in the purge passage is measured. After measuring the amount of generated fuel vapor, a test for leakage in the purge passage is performed based on the change of pressure due to the fuel vapor generation when measuring changes of pressure in the purge passage during a predetermined period.

摘要翻译： 燃料蒸汽吹扫系统将燃料箱与罐连接，并且通过罐收集在燃料箱中产生的燃料蒸气。 净化系统通过净化通道将收集的燃料蒸气吹扫到内燃机的进气通道。 在吹扫通道被密封的同时测量燃料箱中产生燃料蒸气的压力变化。 净化通道中的压力与净化通道外部的压力不同，并且吹扫通道被密封。 在这种状态下，测量吹扫通道中的压力变化。 在测量产生的燃料蒸汽的量之后，基于在测量预定时间段内的净化通道中的压力变化时由于燃料蒸气产生的压力变化而进行吹扫通道中的泄漏试验。

公开(公告)号：US06695895B2

公开(公告)日：2004-02-24

申请号：US10120558

申请日：2002-04-12

申请人： Yoshihiko Hyodo ,  Mamoru Yoshioka ,  Takanobu Kawano ,  Hideaki Itakura ,  Masaki Takeyama ,  Naoya Kato

发明人： Yoshihiko Hyodo ,  Mamoru Yoshioka ,  Takanobu Kawano ,  Hideaki Itakura ,  Masaki Takeyama ,  Naoya Kato

IPC分类号： F02M2508

CPC分类号： F02M25/0818 ,  B01D53/0454 ,  F02M25/0809 ,  F02M25/0872 ,  F02M25/089 ,  F02M2025/0881

摘要： A fuel vapor handling apparatus supplies a purging air to a canister by using a purge pump and purges fuel desorbed from the canister into an intake pipe. A controller intermittently operates the purge so that the canister internal temperature recovers from a reduced level caused by the latent heat of vaporization of fuel during an operating period of the purge pump. Therefore, desorption of fuel from the canister during an operating period is facilitated. Since the actual operating time of the purge pump is reduced, the life of a motor that is a power unit of the purge pump becomes longer.

摘要翻译： 燃料蒸气处理装置通过使用净化泵将净化空气提供给罐，并将从罐排出的燃料吹扫到进气管中。 控制器间歇地操作吹扫，使得罐内部温度从在清洗泵的运行期间由燃料的蒸发潜热引起的降低的水平恢复。 因此，容易在操作期间从罐解吸燃料。 由于清洗泵的实际操作时间减少，作为清洗泵的动力单元的电动机的寿命变长。

公开(公告)号：US06637415B2

公开(公告)日：2003-10-28

申请号：US09986100

申请日：2001-11-07

申请人： Mamoru Yoshioka ,  Yoshihiko Hyodo

发明人： Mamoru Yoshioka ,  Yoshihiko Hyodo

IPC分类号： F02M3302

CPC分类号： F02M35/10019 ,  F02M25/08 ,  F02M33/02 ,  F02M35/04 ,  F02M35/10013 ,  F02M35/10065 ,  F02M35/10216 ,  F02M35/10255 ,  F02M35/10281 ,  F02M35/10386

摘要： An evaporative fuel leakage preventing device is designed such that an adsorbent is disposed in an intake passage so as to adsorb evaporative fuel generated in the intake passage during stoppage of the engine and prevent evaporative fuel from being discharged to the atmosphere. The device prevents evaporative fuel that has been previously adsorbed by the adsorbent, and that is desorbed from the adsorbent due to the ambient temperature while the engine is not in operation, from being emitted to the atmosphere even when the engine is not in operation.

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：US6161424A

公开(公告)日：2000-12-19

申请号：US262421

申请日：1999-03-04

申请人： Toru Kidokoro ,  Takaaki Ito ,  Yoshihiko Hyodo

发明人： Toru Kidokoro ,  Takaaki Ito ,  Yoshihiko Hyodo

IPC分类号： B60K15/03 ,  B60K15/035 ,  F02D33/00 ,  F02M37/00 ,  F02M37/10 ,  F02M37/20 ,  G01M3/32

CPC分类号： F02M25/089 ,  B60K15/03 ,  B60K15/03504 ,  B60K2015/03223 ,  F02D33/003 ,  F02M37/0082 ,  F02M37/10 ,  F02M37/20

摘要： According to the present invention, there is provided a device for diagnosing malfunction in a fuel tank. The fuel tank has a separator wall therein which separates an interior of the fuel tank into a fuel chamber and an air chamber. The separator wall is deformable according to an amount of fuel in the fuel chamber. The device comprises a device for detecting a change of at least one of a position of the separator wall, the pressure in the tank and the concentration of fuel vapor in the tank, and a device for diagnosing malfunction of the separator wall on the basis of the change to diagnose that the separator wall has malfunction when the change differs from a predetermined regular change.

摘要翻译： 根据本发明，提供一种用于诊断燃料箱故障的装置。 燃料箱具有分隔壁，分隔壁将燃料箱的内部分成燃料室和空气室。 分隔壁根据燃料室中的燃料量而变形。 该装置包括用于检测分离器壁的位置，罐中的压力和罐中的燃料蒸气浓度中的至少一个的变化的装置，以及用于诊断隔板的故障的装置，其基于 当变化与预定的正常变化不同时，诊断分隔壁出现故障的变化。

公开(公告)号：US5851268A

公开(公告)日：1998-12-22

申请号：US803057

申请日：1997-02-19

申请人： Yoshihiko Hyodo ,  Takaaki Itoh

发明人： Yoshihiko Hyodo ,  Takaaki Itoh

IPC分类号： F02M25/08 ,  B01D53/04

CPC分类号： F02M25/0854

摘要： According to the present invention, there is provided a canister comprising: a casing having an interior therein and a separator for separating the interior into first and second interior sections, the first interior section containing an absorbent and having a fuel vapor inlet and a fuel vapor outlet, the second interior section containing an absorbent and having an opening which is open to the outside air, the separator having fuel vapor channels therein and being formed by compressing a flexible filtering material to elongate the channels.

摘要翻译： 根据本发明，提供了一种罐，其特征在于，具有：内部具有内部的壳体和用于将所述内部分离成第一和第二内部部分的分离器，所述第一内部部分包含吸收剂，并具有燃料蒸汽入口和燃料蒸气 出口，所述第二内部部分包含吸收剂并且具有对外部空气开放的开口，所述分离器在其中具有燃料蒸气通道，并且通过压缩柔性过滤材料以使通道伸长而形成。

公开(公告)号：US5669360A

公开(公告)日：1997-09-23

申请号：US601639

申请日：1996-02-14

申请人： Yoshihiko Hyodo ,  Hiroki Matsuoka ,  Takashi Ishikawa

发明人： Yoshihiko Hyodo ,  Hiroki Matsuoka ,  Takashi Ishikawa

IPC分类号： F02D41/00 ,  F02M25/08 ,  F02M37/00 ,  F02M37/04

CPC分类号： F02M25/0854 ,  F02D41/0032

摘要： A fuel-vapor emission-control system for an internal combustion engine which is capable of achieving both a reduction of the exhaust of vapor into the atmosphere and the prevention of an excessive increase in pressure within the fuel tank, regardless of the amount of internal pressure in the fuel tank, by providing on an atmospheric release port of the canister which adsorbs vapor adsorbed from the fuel tank of the internal combustion engine, thereby preventing release of the vapor into the atmosphere, an atmospheric release surface area changing valve which changes the surface area of an aperture to the atmosphere. The atmospheric release surface area valve operates to make the atmospheric release surface area larger when the internal pressure in the fuel tank is large than when the internal pressure in the fuel tank is small. The atmospheric release surface area changing valve can be configured as a mechanical type of pressure-sensitive valve which opens when the internal pressure in the canister exceeds a set value, and can also be configured as an electromagnetic valve, the degree of opening of which can be electrically varied in response to a detected value of vapor pressure within the system to thereby change the atmospheric release surface area.

摘要翻译： 一种用于内燃机的燃料蒸汽排放控制系统，其能够实现将蒸汽排放到大气中的减少和防止燃料箱内的压力过度增加，而不管内部压力如何 在燃料箱中，通过在容器的大气释放口上设置吸附从内燃机的燃料箱吸附的蒸气，从而防止蒸汽向大气中的释放，改变表面的大气释放表面积变化阀 孔径到大气的面积。 当燃料箱内部的压力大于燃料箱的内部压力较小时，大气释放表面积阀的作用是使大气释放表面积更大。 大气释放表面积变化阀可以被构造为当罐内部压力超过设定值时打开的机械式压敏阀，并且也可以被构造为电磁阀，其开度可以 响应于系统内的蒸汽压的检测值而电变化，从而改变大气释放表面积。

公开(公告)号：US5431144A

公开(公告)日：1995-07-11

申请号：US111345

申请日：1993-08-24

申请人： Yoshihiko Hyodo ,  Takaaki Itou ,  Akinori Osanai ,  Toru Kidokoro

发明人： Yoshihiko Hyodo ,  Takaaki Itou ,  Akinori Osanai ,  Toru Kidokoro

IPC分类号： B60K15/035 ,  F02M25/08 ,  F02M31/20 ,  F02M37/00 ,  F02M37/20 ,  F02M37/04

CPC分类号： F02M25/0872 ,  B60K15/03504 ,  B60K15/03519 ,  B60K2015/03514

摘要： An evaporated fuel control apparatus includes a fuel tank for storing fuel, a first passage for connecting an internal space of the fuel tank to the atmosphere, the first passage having an opening which is open to the atmosphere, and a fuel vapor separating unit provided in the first passage for separating evaporated fuel of the fuel tank from air fed from the fuel tank to the atmosphere via the fuel vapor separating unit, the fuel vapor separating unit permitting passage of molecular components of air and not permitting passage of molecular components of fuel.

摘要翻译： 蒸发燃料控制装置包括用于储存燃料的燃料箱，用于将燃料箱的内部空间连接到大气的第一通道，具有向大气开放的开口的第一通道和设置在燃料箱内的燃料蒸气分离单元 用于将燃料箱的蒸发燃料与通过燃料蒸气分离单元从燃料箱供给到大气的空气分离的第一通道，燃料蒸气分离单元允许空气的分子组分通过，并且不允许燃料的分子组分通过。