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：US06253743B1

公开(公告)日：2001-07-03

申请号：US09368474

申请日：1999-08-04

申请人： Yoshihiko Hyodo ,  Toshimi Murai ,  Hidekazu Sasaki ,  Koichi Takeuchi

发明人： Yoshihiko Hyodo ,  Toshimi Murai ,  Hidekazu Sasaki ,  Koichi Takeuchi

IPC分类号： F02M3302

CPC分类号： F02M31/18 ,  F02M25/08 ,  Y02T10/126

摘要： A fuel vapor control apparatus determines whether the concentration of fuel vapor in a space above the surface of liquid fuel in the fuel tank is less than a predetermined concentration. When the concentration of fuel vapor is less than the predetermined concentration, the concentration of fuel vapor in the fuel tank is increased and, when the concentration of fuel vapor exceeds the predetermined concentration, the increase of the concentration of fuel vapor is stopped. Therefore, an amount of fuel flowing out of the fuel tank can be reduced while using a reduced amount of energy.

摘要翻译： 燃料蒸汽控制装置确定燃料箱中的液体燃料表面上方的空间中的燃料蒸气的浓度是否小于预定浓度。 当燃料蒸汽的浓度小于预定浓度时，燃料箱中燃料蒸气的浓度增加，并且当燃料蒸汽的浓度超过预定浓度时，停止燃料蒸气浓度的增加。 因此，能够减少从燃料箱流出的燃料量，同时减少能量。

公开(公告)号：US5859365A

公开(公告)日：1999-01-12

申请号：US839595

申请日：1997-04-15

申请人： Ichiro Kataoka ,  Kazuyuki Sasaki ,  Kunimitsu Aoki ,  Shozo Ashizawa ,  Shinji Narama ,  Takaaki Itou ,  Toru Kidokoro ,  Yoshihiko Hyodo

发明人： Ichiro Kataoka ,  Kazuyuki Sasaki ,  Kunimitsu Aoki ,  Shozo Ashizawa ,  Shinji Narama ,  Takaaki Itou ,  Toru Kidokoro ,  Yoshihiko Hyodo

IPC分类号： G01F23/00 ,  G01F22/02 ,  G01F23/14 ,  G01F17/00

CPC分类号： G01F23/14 ,  G01F22/02

摘要： In a remaining fuel amount measuring apparatus for a fuel tank which is suited to the fuel tank designed to suppress generation of fuel vapor, a CPU actuates a piston to supply a prescribed amount of air into a pressure adjusting chamber, thereby increasing the pressure within the pressure adjusting chamber. From the Boyle's law, the increasing rate of air before air supply is inversely proportional to the volume V of the pressure adjusting chamber. Therefore, the CPU, referring to the pressure within the pressure adjusting chamber before and after the air supply, acquires the volume V of the pressure adjusting chamber, and subtracts the volume V of the pressure adjusting chamber from the internal volume of a tank body to acquire the volume of a fuel chamber, i.e. remaining fuel amount.

摘要翻译： 在适用于设计成抑制燃料蒸气产生的燃料箱的燃料箱的剩余燃料量测量装置中，CPU致动活塞，将规定量的空气供给到压力调节室，从而增加在 压力调节室。 根据Boyle定律，供气前空气的增加率与压力调节室的体积V成反比。 因此，CPU参照空气供给前后的压力调节室内的压力取得压力调节室的体积V，并将压力调节室的体积V从罐体的内部体积减去 获取燃料室的体积，即剩余燃料量。

公开(公告)号：US5368002A

公开(公告)日：1994-11-29

申请号：US84704

申请日：1993-06-25

申请人： Shinichi Hoshino ,  Koji Okawa ,  Akinori Osanai ,  Takaaki Itou ,  Yoshihiko Hyodo ,  Toru Kidokoro

发明人： Shinichi Hoshino ,  Koji Okawa ,  Akinori Osanai ,  Takaaki Itou ,  Yoshihiko Hyodo ,  Toru Kidokoro

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

CPC分类号： F02D41/0045 ,  F02D41/0032 ,  F02M25/08

摘要： An evaporated fuel purge control apparatus includes a purge control valve arranged in a purge passage between a canister and an intake passage of an engine, the purge control valve being switched on and off in accordance with a control factor, the control factor indicating a duty ratio of an on-time of the purge control valve within a duty cycle to a total duty-cycle time, a detecting part for detecting an operating condition under which the engine is operating, and a flow rate control part for setting a control factor for the purge control valve in accordance with the operating condition detected by the detecting part, the control factor set by the flow rate control part allowing a flow rate of evaporated fuel fed from the canister into the intake passage through the purge control valve to be maintained at a constant level when the operating condition of the engine changes.

摘要翻译： 蒸发燃料净化控制装置包括排放在发动机的罐和进气通道之间的净化通道中的清洗控制阀，根据控制因素，清洗控制阀被打开和关闭，控制因素指示占空比 在占空比时间内的净化控制阀的接通时间为总占空比时间，检测发动机正在运转的运转状况的检测部，以及用于设定发动机运转的控制系数的流量控制部 清洗控制阀，根据由检测部检测到的操作条件，由流量控制部设定的控制系数允许从罐进入到通过清洗控制阀的进气通道中的蒸发燃料的流量保持在 发动机运行状态发生变化时的恒定值。

公开(公告)号：US5269837A

公开(公告)日：1993-12-14

申请号：US958897

申请日：1992-10-09

申请人： Tamiyoshi Ohashi ,  Masami Mizuno ,  Sukehiro Sawada ,  Hisao Hanabusa ,  Masayuki Nakagawa ,  Tomohide Aoki ,  Takaaki Ito ,  Yoshihiko Hyodo ,  Nobutaka Morimitu ,  Takashi Ohta ,  Norio Sato ,  Akane Okada

发明人： Tamiyoshi Ohashi ,  Masami Mizuno ,  Sukehiro Sawada ,  Hisao Hanabusa ,  Masayuki Nakagawa ,  Tomohide Aoki ,  Takaaki Ito ,  Yoshihiko Hyodo ,  Nobutaka Morimitu ,  Takashi Ohta ,  Norio Sato ,  Akane Okada

IPC分类号： B01D53/04 ,  F02M25/08

CPC分类号： F02M25/0854 ,  B01D53/0407 ,  B01D2253/102 ,  B01D2253/202 ,  B01D2257/702 ,  B01D2259/40086 ,  B01D2259/4516 ,  F02M2025/0863

摘要： An evaporation loss control device provided with a polymer chamber filled with polymer absorbent, a charcoal chamber filled with charcoal, introduction and purging pipes for connecting the polymer chamber with a fuel tank and an engine intake passage, respectively, an air pipe for ventilation connected to the charcoal chamber, and a vapor passage, which has various forms. For example, the vapor passage may be formed in spiral to encircle the polymer chamber, or provided between the polymer and charcoal chambers, thus allowing the evaporated fuel to pass therethrough. The vapor passage is constructed to prevent the evaporated fuel trapped by the polymer absorbent from flowing into the charcoal chamber, and also to prevent the liquid fuel from being absorbed by the charcoal.

摘要翻译： 一种蒸发损失控制装置，其设有填充有聚合物吸收剂的聚合物室，装有木炭的木炭室，用于将聚合物室与燃料箱和发动机进气通道连接的引入和吹扫管，用于通风的空气管连接到 木炭室和蒸气通道，具有各种形式。 例如，蒸汽通道可以形成为螺旋形以包围聚合物室，或者设置在聚合物和炭室之间，从而允许蒸发的燃料通过。 蒸气通道被构造成防止聚合物吸收剂捕获的蒸发燃料流入木炭室，并且还防止液体燃料被木炭吸收。

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：US06616007B2

公开(公告)日：2003-09-09

申请号：US09657784

申请日：2000-09-08

申请人： Takashi Ishikawa ,  Tomoyasu Arase ,  Masahide Kobayashi ,  Katsuyuki Miura ,  Yoshihiko Hyodo

发明人： Takashi Ishikawa ,  Tomoyasu Arase ,  Masahide Kobayashi ,  Katsuyuki Miura ,  Yoshihiko Hyodo

IPC分类号： B65D8812

CPC分类号： B60K15/03

摘要： A lower wall (8) forming a fuel storage chamber (5) becomes curved downward according to increase of the fuel amount, and at this time a support member (23) for supporting the fuel storage chamber (5) does not restrain the downward curvature of the lower wall (8), whereby the capacity of the fuel storage chamber (5) can be increased and whereby the amount of the fuel that can be stored in the fuel storage chamber (5) can be maintained at the maximum, as compared with structure inhibiting deformation of the lower wall (8).

公开(公告)号：US06176118B1

公开(公告)日：2001-01-23

申请号：US09262422

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： G01M304

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：US6047687A

公开(公告)日：2000-04-11

申请号：US83380

申请日：1998-05-22

申请人： Takashi Ishikawa ,  Yoshihiko Hyodo ,  Hideo Yamada

发明人： Takashi Ishikawa ,  Yoshihiko Hyodo ,  Hideo Yamada

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

CPC分类号： F02M25/0854

摘要： A canister for treating fuel vapor generated in a fuel tank and for supplying fuel vapor to an intake system of an engine via a purge passage. First and second adsorbent compartments are defined in a casing by a partition for accommodating adsorbents. First and second dispersion compartments are defined in the casing for dispersing fuel vapor from the fuel tank. The first and the second dispersion compartments are located at one end of the first and second adsorbent compartments, respectively. A valve device is positioned at one side of the second adsorbent compartment for selectively opening and closing in accordance with the difference between internal and external pressures of the casing. A tank valve is connected to one side of the casing corresponding to the first adsorbent compartment for adjusting the pressure in the fuel tank. An external dispersion compartment is connected to a wall of the casing to communicate with the first dispersion compartment. A breather passage is connected to the external dispersion compartment for introducing fuel vapor into the canister from the fuel tank during refueling, and the external dispersion compartment has a cross sectional area larger than that of the breather passage.

摘要翻译： 一种用于处理在燃料箱中产生的燃料蒸汽并且用于经由吹扫通道将燃料蒸汽供应到发动机的进气系统的罐。 第一和第二吸附剂隔室通过用于容纳吸附剂的隔板限定在套管中。 在壳体中限定第一和第二分散室，用于分散来自燃料箱的燃料蒸气。 第一和第二分散室分别位于第一和第二吸附隔室的一端。 阀装置位于第二吸附剂室的一侧，用于根据壳体的内部和外部压力之间的差别选择性地打开和关闭。 油箱阀连接到壳体的与第一吸附室相对应的一侧，用于调节燃料箱中的压力。 外部分散室连接到壳体的壁以与第一分散室连通。 通气通道连接到外部分散室，用于在加油期间从燃料箱将燃料蒸气引入罐中，并且外部分散室的横截面面积大于通气通道的横截面面积。

公开(公告)号：US5647332A

公开(公告)日：1997-07-15

申请号：US601391

申请日：1996-02-14

申请人： Yoshihiko Hyodo ,  Hiroki Matsuoka

发明人： Yoshihiko Hyodo ,  Hiroki Matsuoka

IPC分类号： F02M25/08

CPC分类号： F02M25/0809 ,  F02M25/0836

摘要： The amount of flow in a canister is controlled, in a fuel-vapor emission-control system, in response to the operating condition of an engine, control being performed of the size of a release port on the canister responsive to the amount of purge, thereby enabling a large purging amount. An electromagnetic valve capable of changing the surface area of the port is provided at the atmospheric side of a port of the canister. The degree of opening of this electromagnetic valve is varied, depending on the conditions of refueling, traveling, and parking, and during a purge, the opening of the electromagnetic valve when the amount of purge is large is made larger then when the amount of purge is small. By doing this, the recovery of hydrocarbons from the canister when purging is done is speed up, thus improving the working capacity of the canister.

摘要翻译： 在燃料 - 蒸气排放控制系统中，响应于发动机的运行状态，在罐中的流量被控制，响应于吹扫量而对罐上的释放口的尺寸进行控制， 从而能够实现大的清洗量。 在罐的端口的大气侧设置能够改变端口表面积的电磁阀。 这种电磁阀的开度根据加油，行驶和停车的条件而变化，并且在吹扫期间，当吹扫量大时，电磁阀的打开被增大，然后当吹扫量 是小。 通过这样做，在进行清洗时从罐中回收碳氢化合物的加速，从而提高了罐的工作能力。