公开(公告)号：US08015799B2

公开(公告)日：2011-09-13

申请号：US11171368

申请日：2005-07-01

申请人： Yasuki Tamura ,  Kazuhito Kawashima

发明人： Yasuki Tamura ,  Kazuhito Kawashima

IPC分类号： F01N3/00

CPC分类号： F01N13/10 ,  F01N13/008 ,  F01N13/1805 ,  F01N2450/24 ,  F01N2560/02 ,  F01N2560/025 ,  F02D41/008 ,  F02D41/1439

摘要： There is provided a multicylinder internal combustion engine. Branches of an exhaust manifold are connected to a common exhaust gas sensor via respective exhaust communication passages. The exhaust gas sensor detects the exhaust air-fuel ratio of each cylinder. The distance from exhaust ports of the engine to the exhaust gas sensor is set to be shorter than the distance from the exhaust ports to a catalyst disposed in an exhaust pipe.

摘要翻译： 提供了一个多缸内燃机。 排气歧管的分支通过相应的排气连通通道连接到公共废气传感器。 废气传感器检测各气缸的排气空燃比。 从发动机排气口到废气传感器的距离设定为比从排气口到设置在排气管中的催化剂的距离短。

公开(公告)号：US07216479B2

公开(公告)日：2007-05-15

申请号：US10346086

申请日：2003-01-17

申请人： Yasuki Tamura

发明人： Yasuki Tamura

IPC分类号： F01N3/00

CPC分类号： F02D41/1448 ,  F01N3/20 ,  F01N3/28 ,  F01N2260/14 ,  F02B23/104 ,  F02B2075/125 ,  F02D9/04 ,  F02D37/02 ,  F02D41/024 ,  F02D41/0255 ,  F02D41/06 ,  F02D41/123 ,  F02D41/1446 ,  F02D41/1454 ,  F02D41/1475 ,  F02D41/3029 ,  F02D41/405 ,  F02D2011/102 ,  F02D2041/389 ,  F02D2200/0406 ,  F02D2200/501 ,  F02D2200/602 ,  F02D2250/41 ,  Y02A50/2322 ,  Y02T10/123 ,  Y02T10/26 ,  Y02T10/44

摘要： Normally, at the time of cold-start of an internal combustion engine or the like, the flow of exhaust in an exhaust passage of the internal combustion engine is suppressed or two-stage combustion is carried out so as to promote exhaust purification in an exhaust system. However, when a correlation value of a braking force required to be generated by a vacuum type brake booster is greater than a correlation value of a braking force that can be actually generated by the vacuum type brake booster, a restricting device restricts the suppression of the exhaust flow or a two-stage combustion prohibiting device prohibits the two-combustion.

摘要翻译： 通常，在内燃机等的冷启动时，内燃机的排气通路中的排气流被抑制或进行二级燃烧，以促进排气中的排气净化 系统。 然而，当由真空式制动助力器产生的制动力的相关值大于由真空式制动助力器实际产生的制动力的相关值时，限制装置限制 排气流量或两级燃烧禁止装置禁止双燃烧。

公开(公告)号：US07003945B2

公开(公告)日：2006-02-28

申请号：US10868981

申请日：2004-06-17

申请人： Yasuki Tamura

发明人： Yasuki Tamura

IPC分类号： F01N3/00

CPC分类号： F01N3/18 ,  F01N2430/06 ,  F02D41/0295 ,  F02D41/1408 ,  F02D2200/0814 ,  Y02T10/22

摘要： An exhaust emission control device for internal combustion engine comprising air-fuel ratio modulating means and air-fuel ratio modulation adjusting means. The air-fuel ratio modulation adjusting means adjusts a lean period to be longer or the degree of leaning to be higher, during which the air-fuel ratio of exhaust gas is a lean air-fuel ratio, compared with when an oxygen storage (S10) of a three-way catalyst exceeds a first given value X1 if the oxygen storage is not higher than the first given value X1 (S16, S18), and adjusts a rich period to be longer or the degree of enriching to be higher, during which the exhaust air-fuel ratio is a rich air-fuel ratio, compared with when a reducing agent storage (S12) exceeds a second given value Y1 if the reducing agent storage is not higher than the second given value Y1 (S20, S22).

摘要翻译： 一种用于内燃机的废气排放控制装置，包括空燃比调节装置和空燃比调制调节装置。 空燃比调制调整单元将空燃比调制调整单元调节为与氧储存时相比，排气的空燃比为稀空燃比时，将较长的倾斜度或倾斜度变得更高（S 如果氧气存储量不高于第一给定值X 1（S 16，S 18），则三元催化剂的浓度超过第一给定值X 1，并且调节浓度更长的时间或浓缩程度 与减少剂储存（S12）超过第二给定值Y 1相比，如果还原剂储存不高于第二给定值Y 1，则排气空燃比是浓空燃比 值Y 1（S 20，S 22）。

公开(公告)号：US20060000204A1

公开(公告)日：2006-01-05

申请号：US11171368

申请日：2005-07-01

申请人： Yasuki Tamura ,  Kazuhito Kawashima

发明人： Yasuki Tamura ,  Kazuhito Kawashima

IPC分类号： F01N3/00 ,  F02D41/00 ,  F01N3/10

CPC分类号： F01N13/10 ,  F01N13/008 ,  F01N13/1805 ,  F01N2450/24 ,  F01N2560/02 ,  F01N2560/025 ,  F02D41/008 ,  F02D41/1439

摘要： There is provided a multicylinder internal combustion engine. Branches of an exhaust manifold are connected to a common exhaust gas sensor via respective exhaust communication passages. The exhaust gas sensor detects the exhaust air-fuel ratio of each cylinder. The distance from exhaust ports of the engine to the exhaust gas sensor is set to be shorter than the distance from the exhaust ports to a catalyst disposed in an exhaust pipe.

摘要翻译： 提供了一个多缸内燃机。 排气歧管的分支通过相应的排气连通通道连接到公共废气传感器。 废气传感器检测各气缸的排气空燃比。 从发动机排气口到废气传感器的距离设定为比从排气口到设置在排气管中的催化剂的距离短。

公开(公告)号：US06817172B2

公开(公告)日：2004-11-16

申请号：US10601580

申请日：2003-06-24

申请人： Yasuki Tamura

发明人： Yasuki Tamura

IPC分类号： F01N300

CPC分类号： F02D9/1055 ,  F01N3/005 ,  F01N2250/02 ,  F01N2430/06 ,  F02D9/04 ,  F02D41/123 ,  Y02T10/20

摘要： An exhaust purifying apparatus includes an exhaust throttle valve provided in an exhaust passage of the internal combustion engine for closing the exhaust passage to increase a pressure therein; a relief passage provided bypassing the exhaust throttle valve; a relief valve provided to be able to close the relief passage and to be open when receiving an increased pressure in the exhaust passage with closure of the exhaust throttle valve; fuel cut determining means for determining whether the engine is during fuel cut-off; and a relief-valve forcibly operating means for closing the exhaust throttle valve when the fuel cut determining means determines that the engine is during fuel cut-off, thereby removing condensed water accumulated in the relief passage to avoid faulty operations of the relief valve, and suppressing deteriorated fuel consumption upon operation of the relief valve.

摘要翻译： 排气净化装置包括设置在内燃机的排气通道中的排气节流阀，用于关闭排气通道以增加其中的压力; 绕过排气节流阀提供的释放通道; 安全阀，其设置成能够关闭排气通道，并且在排气节流阀关闭时在排气通道中接收到增加的压力时打开; 燃料切断确定装置，用于确定发动机是否处于燃料切断期间; 以及安全阀强制操作装置，用于当燃料切断确定装置确定发动机处于燃料切断期间时关闭排气节流阀，从而去除积存在溢流通道中的冷凝水，以避免溢流阀的错误操作;以及 抑制了安全阀操作时的燃料消耗。

公开(公告)号：US06751949B2

公开(公告)日：2004-06-22

申请号：US10240113

申请日：2002-09-27

申请人： Yasuki Tamura ,  Kazuhito Kawashima

发明人： Yasuki Tamura ,  Kazuhito Kawashima

IPC分类号： F01N300

CPC分类号： F02D41/0087 ,  F01N3/2006 ,  F01N3/22 ,  F01N3/32 ,  F01N13/08 ,  F01N2260/14 ,  F01N2430/02 ,  F02B2075/125 ,  F02D9/04 ,  F02D41/025 ,  F02D41/062 ,  Y02T10/123 ,  Y02T10/26

摘要： At the start of operation of an internal-combustion engine (S10,S12,S14), an exhaust flow is restrained (to raise the exhaust pressure) (S18), secondary air is supplied (S20), and the combustion air-fuel ratio (A/F) is set within the range of rich air-fuel ratios (S16, S22).

摘要翻译： 在内燃机的运转开始时（S10，S12，S14），抑制排气（提高排气压力）（S18），供给二次空气（S20），燃烧空燃比 （A / F）设定在浓空燃比的范围内（S16，S22）。

公开(公告)号：US06729123B2

公开(公告)日：2004-05-04

申请号：US10204980

申请日：2002-08-28

申请人： Yasuki Tamura ,  Kazuhito Kawashima

发明人： Yasuki Tamura ,  Kazuhito Kawashima

IPC分类号： F01N300

CPC分类号： F02D41/401 ,  F01N3/2006 ,  F01N2260/14 ,  F02D41/024 ,  F02D41/3023 ,  F02D41/3076 ,  Y02T10/26 ,  Y02T10/44

摘要： When an internal combustion engine is in a cold state (S12), fuel is injected during compression stroke with burn air/fuel ratio controlled so as to produce a slight lean air/fuel mixture equivalent to or slightly leaner than a stoichiometric air/fuel mixture (compression S/L operation) (S14), and also exhaust gas flow is restrained (S16).

摘要翻译： 当内燃机处于冷态时（S12），在压缩冲程期间喷射燃料，控制燃烧空气/燃料比，以产生等于或稍微比化学计量空气/燃料混合物略微稀薄的稀薄空气/燃料混合物 （压缩S / L操作）（S14），并且还抑制废气流（S16）。

公开(公告)号：US06644021B2

公开(公告)日：2003-11-11

申请号：US10303605

申请日：2002-11-25

申请人： Kojiro Okada ,  Yasuki Tamura

发明人： Kojiro Okada ,  Yasuki Tamura

IPC分类号： F01N300

CPC分类号： F01N9/005 ,  F01N3/0842 ,  F01N3/0885 ,  F01N3/101 ,  F01N13/009 ,  F01N13/0093 ,  F01N2240/16 ,  F01N2570/04 ,  F01N2900/102 ,  F02D37/02 ,  F02D41/024 ,  F02D41/028 ,  F02P5/1506 ,  Y02T10/22 ,  Y02T10/26 ,  Y02T10/46 ,  Y02T10/47

摘要： In an exhaust gas purifying apparatus of an internal combustion engine, the temperature of occlusion-type NOx catalyst is increased to emit SOx when the temperature of occlusion-type NOx catalyst is not less than a set temperature. This prevents the deterioration of fuel consumption and enables the regeneration of a catalyst device by efficiently desorbing a sulfur component from the catalyst device. In this case, the temperature of the occlusion-type NOx catalyst is preferably set according to the frequency of the SOx desorption, and the temperature of the occlusion-type NOx catalyst can be increased by, for example, retarding an ignition timing.

摘要翻译： 另外，在内燃机的废气净化装置中，当吸留型NOx催化剂的温度为设定温度以上时，吸留型NOx催化剂的温度上升，发出SOx。 这防止了燃料消耗的劣化，并且通过有效地从催化剂装置解吸硫成分，能够使催化剂装置再生。 在这种情况下，阻挡型NOx催化剂的温度优选根据SOx解吸的频率来设定，并且可以通过例如延迟点火正时来提高闭塞型NOx催化剂的温度。

公开(公告)号：US5423300A

公开(公告)日：1995-06-13

申请号：US25405

申请日：1993-02-26

申请人： Hiromitsu Ando ,  Osamu Hirako ,  Shogo Omori ,  Jun Takemura ,  Taizo Kitada ,  Katsuo Akishino ,  Yasuki Tamura ,  Michihiro Hata ,  Kinichi Iwachido ,  Masayuki Motomochi ,  Syunsuke Matsuo ,  Nobuaki Murakami ,  Keizo Furukawa

发明人： Hiromitsu Ando ,  Osamu Hirako ,  Shogo Omori ,  Jun Takemura ,  Taizo Kitada ,  Katsuo Akishino ,  Yasuki Tamura ,  Michihiro Hata ,  Kinichi Iwachido ,  Masayuki Motomochi ,  Syunsuke Matsuo ,  Nobuaki Murakami ,  Keizo Furukawa

IPC分类号： F02B1/04 ,  F02B17/00 ,  F02B31/00 ,  F02B31/04 ,  F02F1/10 ,  F02F1/24 ,  F02F1/42 ,  F02B15/00

CPC分类号： F02F1/4214 ,  F02B17/00 ,  F02B31/04 ,  F02F1/108 ,  F02B1/04 ,  F02B2031/006 ,  F02B2275/48 ,  F02F2001/241 ,  F02F2001/245 ,  Y02T10/12 ,  Y02T10/125 ,  Y02T10/146

摘要： An internal combustion engine according to this invention is provided with intake ports each of which is formed to guide a flow of inducted air in a particular direction. Each intake port includes, in the vicinity of its corresponding intake opening to a combustion chamber, a bent port portion bent at a greater curvature than a port portion on a side upstream of the bent port portion. The bent port portion has a greater inner diameter than the inner diameter of the corresponding intake opening, whereby air can be inducted in a sufficient amount without deterioration to the directing function for air to be inducted into the combustion chamber.

摘要翻译： 根据本发明的内燃机设置有进气口，每个进气口形成为沿着特定方向引导导入的空气流。 每个进气口在其对应于燃烧室的相应进气口附近包括弯曲端口部分，该弯曲端口部分弯曲成比弯曲端口部分上游侧的端口部分更大的曲率。 弯曲的端口部分具有比相应的进气口的内径更大的内径，从而可以以足够的量引入空气，而不会导致空气被引入燃烧室的引导功能的恶化。

公开(公告)号：US20070000482A1

公开(公告)日：2007-01-04

申请号：US10550520

申请日：2003-10-17

申请人： Yasuki Tamura ,  Kazuhito Kawashima ,  Hitoshi Toda

发明人： Yasuki Tamura ,  Kazuhito Kawashima ,  Hitoshi Toda

IPC分类号： F02D41/14

CPC分类号： F02D41/1454

摘要： The air/fuel ratio of exhaust flowing into a catalytic converter is forcibly modulated, between a lean air/fuel ratio leaner than a target average air/fuel ratio and a rich air/fuel ratio richer than the target average air/fuel ratio, with a specific period, a specific amplitude, a specific modulation ratio and a specific waveform. During the forcible modulation (S10, S12), the ratio of a time for which the output of an oxygen sensor is greater than a standard value Sb for the output set between the maximum and minimum values of the output (“rich” output time), or of a time for which it is smaller than the standard value Sb (“lean” output time), in a predetermined period of time, or a value correlating with this ratio is obtained (S14), and the air/fuel ratio of the exhaust is controlled on the basis of this ratio or the value correlating with this ratio (S16, S18).