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：US06761154B2

公开(公告)日：2004-07-13

申请号：US10446820

申请日：2003-05-29

申请人： Naoya Takagi ,  Yoshihiko Hyodo

发明人： Naoya Takagi ,  Yoshihiko Hyodo

IPC分类号： F02M3302

CPC分类号： F02M25/0818

摘要： In an evaporative fuel processing apparatus, a fuel tank and a canister communicate with each other through a vapor passage, and an intake passage of an internal combustion engine and the canister communicates with each other through a purge passage. The evaporative fuel processing apparatus includes an open/close valve which opens or closes the vapor passage, a switching valve which makes the canister open to the atmosphere or isolates the canister from the atmosphere, a booster pump capable of applying pressure to the canister while the switching valve isolates the canister from the atmosphere, a purge control valve which opens or closes the purge passage, and an ECU which controls the open/close valve, the switching valve, the booster pump and the purge control valve.

摘要翻译： 在蒸发燃料处理装置中，燃料箱和罐通过蒸气通路彼此连通，内燃机和罐的进气通道通过吹扫通道相互连通。 蒸发燃料处理装置包括打开或关闭蒸气通道的打开/关闭阀，使罐向大气开放或将罐与大气隔离的切换阀，能够向罐施加压力的增压泵，同时 开关阀将罐与大气隔离，打开或关闭净化通道的清洗控制阀以及控制打开/关闭阀，切换阀，增压泵和​​清洗控制阀的ECU。

公开(公告)号：US6044831A

公开(公告)日：2000-04-04

申请号：US990466

申请日：1997-12-15

申请人： Naoya Takagi ,  Toshimi Murai ,  Yoshihiko Hyodo ,  Zenichiro Mashiki ,  Tetsuji Nagata

发明人： Naoya Takagi ,  Toshimi Murai ,  Yoshihiko Hyodo ,  Zenichiro Mashiki ,  Tetsuji Nagata

IPC分类号： F02D41/00 ,  F02D41/30 ,  F02M25/08 ,  F20D41/04

CPC分类号： F02D41/0032 ,  F02D41/3029 ,  F02D41/3064 ,  F02D2041/0015 ,  F02D2041/389 ,  F02D2250/18

摘要： A fuel vapor feed controlling apparatus of a lean burn internal combustion engine suppresses either one of a rich misfire or a surge when fuel vapor is fed into the engine. A purge controlling unit controls an amount of fuel vapor fed from a fuel reservoir to the engine in response to an operational condition of the engine. A first compensation unit compensates the amount of fuel vapor such that an engine revolution speed of the engine may be identical with a target revolution speed. The purge controlling unit performs a purge control based on a compensation value compensated by the first compensation unit.

摘要翻译： 当燃料蒸气被供给到发动机中时，稀燃内燃机的燃料蒸汽进料控制装置抑制浓气失火或浪涌中的任一种。 吹扫控制单元响应于发动机的操作条件控制从燃料箱供应到发动机的燃料蒸汽的量。 第一补偿单元补偿燃料蒸汽的量，使得发动机的发动机转速可以与目标转速相同。 净化控制单元基于由第一补偿单元补偿的补偿值执行清除控制。

公开(公告)号：US06257209B1

公开(公告)日：2001-07-10

申请号：US09261169

申请日：1999-03-03

申请人： Yoshihiko Hyodo ,  Naoya Takagi ,  Motoki Ohtani

发明人： Yoshihiko Hyodo ,  Naoya Takagi ,  Motoki Ohtani

IPC分类号： F02M3704

CPC分类号： F02D41/0032 ,  F02B2075/125 ,  F02D11/105 ,  F02D37/02 ,  F02D41/0007 ,  F02D41/1441 ,  F02D41/187 ,  F02D2041/2027 ,  F02D2041/389 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02D2250/31 ,  F02D2250/41 ,  F02M25/08 ,  Y02T10/123 ,  Y02T10/144

摘要： In an internal combustion engine in which a throttle valve is substantially fully opened in most of the operating regions such as an in-cylinder injection type internal combustion engine, a technique is provided capable of effectively processing an evaporative fuel while stabilizing a combustion state of the internal combustion engine even in the case that an amount of evaporative fuel generated in a fuel tank or the like is increased. To achieve this technique, a purge amount of evaporative fuel is increased by increasing a differential pressure between an upstream portion and a downstream portion of a purge passage, and the differential pressure between an upstream portion and a downstream portion of a purge passage, and the differential pressure is adjusted in accordance with the combustion state of the internal combustion engine at that time, thereby making it possible to purge the maximum amount of evaporative fuel within a range in which the combustion state is not unstabilized.

摘要翻译： 在其中节气门在诸如缸内喷射型内燃机的大多数操作区域中基本上完全打开的内燃机中，提供了能够有效地处理蒸发燃料同时稳定燃烧状态的技术 即使在燃料箱等中产生的蒸发燃料的量增加的情况下也可以使用内燃机。 为了实现这种技术，通过增加净化通道的上游部分和下游部分之间的压差以及净化通道的上游部分和下游部分之间的压差来增加蒸发燃料的净化量，并且 根据该时刻的内燃机的燃烧状态来调节差压，从而能够在燃烧状态不稳定的范围内吹扫最大量的蒸发燃料。

公开(公告)号：US06438945B1

公开(公告)日：2002-08-27

申请号：US09762333

申请日：2001-02-27

申请人： Naoya Takagi ,  Yoshihiko Hyodo ,  Toshimi Murai

发明人： Naoya Takagi ,  Yoshihiko Hyodo ,  Toshimi Murai

IPC分类号： F01N300

CPC分类号： F02M25/08 ,  F01N3/0842 ,  F01N2570/04 ,  F02B23/10 ,  F02B23/104 ,  F02B2075/125 ,  F02D41/0032 ,  F02D41/0042 ,  F02D41/0045 ,  F02D41/005 ,  F02D41/0275 ,  F02D41/028 ,  F02D41/1443 ,  F02D41/1498 ,  F02D41/3029 ,  F02D2041/389 ,  F02D2200/0806 ,  F02D2200/0818 ,  F02D2250/41 ,  F02F3/26 ,  Y02T10/123 ,  Y02T10/125

摘要： An internal combustion engine, wherein fuel vapor adsorbed in a canister (22) is purged into a surge tank (13) through a purge control valve (28). A target value of the fuel vapor rate showing the ratio of the amount of fuel vapor in the purge gas to the amount of fuel injection is stored in advance. At least one of the amount of purge gas or the amount of fuel injection is controlled so that the fuel vapor rate becomes the target value.

摘要翻译： 一种内燃机，其中吸附在罐（22）中的燃料蒸气通过净化控制阀（28）被净化到缓冲箱（13）中。 预先存储表示吹扫气体中的燃料蒸气量与燃料喷射量的比率的燃料蒸气率的目标值。 控制净化气体量或燃料喷射量中的至少一个，使得燃料蒸气率成为目标值。

公开(公告)号：US06131448A

公开(公告)日：2000-10-17

申请号：US257311

申请日：1999-02-25

申请人： Yoshihiko Hyodo ,  Naoya Takagi

发明人： Yoshihiko Hyodo ,  Naoya Takagi

IPC分类号： F02D41/02 ,  F02M25/08 ,  G01M15/04 ,  G01M15/00

CPC分类号： F02M25/0809

摘要： A diagnostic apparatus for a fuel vapor treating apparatus closes a breather to shut a purge system valve during purge. While further continuing the purge, the apparatus detects the purge flow thereby caused and a pressure change occurring in the purge system. Based on the purge flow and the pressure change, the space volume in the purge system is estimated. By comparing the estimated space volume and the actual space volume in the purge system, the apparatus determines whether there is a failure or fault in the purge system.

摘要翻译： 用于燃料蒸汽处理装置的诊断装置在吹扫期间关闭通气器以关闭净化系统阀。 在进一步继续吹扫的同时，该装置检测由此引起的吹扫流量和在吹扫系统中发生的压力变化。 基于吹扫流量和压力变化，估计净化系统中的空间体积。 通过比较净化系统中的估计空间体积和实际空间体积，该装置确定吹扫系统中是否存在故障或故障。

公开(公告)号：US5836291A

公开(公告)日：1998-11-17

申请号：US862042

申请日：1997-05-22

申请人： Yukio Kinugasa ,  Takaaki Itou ,  Yoshihiko Hyodo ,  Toru Kidokoro ,  Naoya Takagi

发明人： Yukio Kinugasa ,  Takaaki Itou ,  Yoshihiko Hyodo ,  Toru Kidokoro ,  Naoya Takagi

IPC分类号： G01C21/00 ,  F02D41/00 ,  F02M25/08 ,  F02D41/04 ,  F02D41/14

CPC分类号： F02D41/0032 ,  F02D2200/701 ,  F02M25/08

摘要： An evaporative fuel processing apparatus which can optimally process fuel gas according to navigation information or the like. This apparatus obtains future running information from a navigation system and further predicts an amount quantity of fuel vapor generated in a fuel tank (13) according to the running information. Further, the apparatus determines an amount of fuel vapor to be purged from a canister (14), namely, a valve opening of a purge control valve (142) so that an amount of fuel vapor adsorbed in the canister (14) is not more than a predetermined upper limit and that an amount of fuel adsorbed in the canister (14) after running is almost zero. Thus, an evaporation emission is reduced and the durability of the canister is prolonged by controlling the purge control valve.

摘要翻译： 能够根据导航信息等优化燃料气体的蒸发燃料处理装置。 该装置从导航系统获取未来的运行信息，并且根据运行信息进一步预测在燃料箱（13）中产生的燃料蒸汽的量。 此外，该装置确定从罐（14）即净化控制阀（142）的阀开口排出的燃料蒸汽的量，使得吸附在罐（14）中的燃料蒸汽的量不多 并且运行后在罐（14）中吸附的燃料量几乎为零。 因此，通过控制清洗控制阀，减少了蒸发发射并延长了罐的耐久性。

公开(公告)号：US5735251A

公开(公告)日：1998-04-07

申请号：US856418

申请日：1997-05-14

申请人： Yoshihiko Hyodo ,  Takaaki Itoh ,  Naoya Takagi

发明人： Yoshihiko Hyodo ,  Takaaki Itoh ,  Naoya Takagi

IPC分类号： B60K15/077 ,  F02D41/00 ,  F02M25/08 ,  F02M33/02

CPC分类号： F02D41/004 ,  F02M25/08

摘要： A fuel-vapor emission control apparatus is mounted on a vehicle having an internal combustion engine and a fuel tank. The engine has a plurality of cylinders and is supported by engine mounts. The fuel-vapor emission control apparatus purges fuel-vapor in the fuel tank and supplies the purged fuel-vapor to the engine. The apparatus includes a vacuum switching valve, sensors and an electronic control unit. The vacuum switching valve controls the amount of purged fuel-vapor that is supplied to the engine. The sensors detect the operating state of the engine. The electronic control unit duty controls the vacuum switching valve in accordance with data from the sensors. The control unit also serves to suppress resonance of the engine and the engine mounts when purged fuel-vapor is being supplied to the engine.

摘要翻译： 燃料蒸汽排放控制装置安装在具有内燃机和燃料箱的车辆上。 发动机具有多个气缸并由发动机支架支撑。 燃料蒸汽排放控制装置清除燃料箱中的燃料蒸气并将净化的燃料蒸汽供应到发动机。 该装置包括真空切换阀，传感器和电子控制单元。 真空切换阀控制供给发动机的清除的燃料蒸气的量。 传感器检测发动机的运行状态。 电子控制单元负责根据传感器的数据控制真空切换阀。 当向发动机供给净化的燃料蒸汽时，控​​制单元还用于抑制发动机和发动机支架的共振。

公开(公告)号：US06283088B1

公开(公告)日：2001-09-04

申请号：US09335795

申请日：1999-06-18

申请人： Naoya Takagi ,  Yoshihiko Hyodo

发明人： Naoya Takagi ,  Yoshihiko Hyodo

IPC分类号： F02B1700

CPC分类号： F02D41/0032 ,  F02B17/005 ,  F02B2031/006 ,  F02B2075/125 ,  F02B2275/48 ,  F02D41/3029 ,  F02D41/3076 ,  F02D2041/0015 ,  F02F3/26 ,  F02M25/08 ,  Y02T10/123 ,  Y02T10/125

摘要： A cylinder injection type lean-burn internal combustion engine is capable of executing the purging of a vapor fuel without disturbing a state of an air-fuel mixture in a combustion chamber. The vapor fuel produced in a fuel tank is guided to a purge port provided at an intake passageway of the lean-burn internal combustion engine, and subsequently supplied along an intake air swirl flow into the combustion chamber. The vapor fuel is thereby partially concentrated in any one of a combustible air-fuel mixture layer and an air layer in the combustion chamber.

摘要翻译： 气缸喷射式稀燃内燃机能够执行蒸汽燃料的清洗，而不会干扰燃烧室内的空气 - 燃料混合物的状态。 在燃料箱中产生的蒸汽燃料被引导到设置在稀燃内燃机的进气通道处的吹扫口，随后沿进气旋转流进入燃烧室。 蒸汽燃料因此部分地集中在燃烧室中的可燃空气 - 燃料混合物层和空气层中的任何一个中。

公开(公告)号：US06257218B1

公开(公告)日：2001-07-10

申请号：US09511962

申请日：2000-02-23

申请人： Naoya Takagi ,  Toshimi Murai ,  Yoshihiko Hyodo ,  Zenichiro Mashiki ,  Tetsuji Nagata

发明人： Naoya Takagi ,  Toshimi Murai ,  Yoshihiko Hyodo ,  Zenichiro Mashiki ,  Tetsuji Nagata

IPC分类号： F02M3304

CPC分类号： F02D41/0032 ,  F02D41/3029 ,  F02D41/3064 ,  F02D2041/0015 ,  F02D2041/389 ,  F02D2250/18

摘要： A fuel vapor feed controlling apparatus of a lean burn internal combustion engine suppresses either one of a rich misfire or a surge when fuel vapor is fed into the engine. A purge controlling unit controls an amount of fuel vapor fed from a fuel reservoir to the engine in response to an operational condition of the engine. A first compensation unit compensates the amount of fuel vapor such that an engine revolution speed of the engine may be identical with a target revolution speed. The purge controlling unit performs a purge control based on a compensation value compensated by the first compensation unit.

摘要翻译： 当燃料蒸气被供给到发动机中时，稀燃内燃机的燃料蒸汽进料控制装置抑制浓气失火或浪涌中的任一种。 吹扫控制单元响应于发动机的操作条件控制从燃料箱供应到发动机的燃料蒸汽的量。 第一补偿单元补偿燃料蒸汽的量，使得发动机的发动机转速可以与目标转速相同。 净化控制单元基于由第一补偿单元补偿的补偿值执行清除控制。