公开(公告)号：US5168839A

公开(公告)日：1992-12-08

申请号：US707335

申请日：1991-05-29

申请人： Mitsuo Hitomi ,  Tadashi Nakagawa ,  Kiyotaka Mamiya ,  Takayoshi Hayashi ,  Tadayoshi Kaide

发明人： Mitsuo Hitomi ,  Tadashi Nakagawa ,  Kiyotaka Mamiya ,  Takayoshi Hayashi ,  Tadayoshi Kaide

IPC分类号： F02F1/42 ,  F02M25/07 ,  F02M35/10 ,  F02M35/108 ,  F02M69/04

CPC分类号： F02D13/0234 ,  F02D41/3094 ,  F02F1/4214 ,  F02M26/01 ,  F02M26/13 ,  F02M35/10072 ,  F02M35/10098 ,  F02M35/10131 ,  F02M35/10177 ,  F02M35/10216 ,  F02M35/10222 ,  F02M35/1085 ,  F02M35/112 ,  F02M69/043 ,  F02M2026/006 ,  F02M35/10262 ,  Y02T10/18

摘要： An engine induction system includes intake passages connected to inlet ports of an engine, an injector provided in the intake passage for injecting fuel in an intake plenum between the injector and the inlet port, the injector being disposed in such a position that the volume of the intake plenum is greater than the predetermined stroke volume. This ensures improved vaporization and atomization of fuel and mixing of fuel and air, and improves the combustibility and increases the charging efficiency of use of latent heat of vaporization.

公开(公告)号：US5443050A

公开(公告)日：1995-08-22

申请号：US12067

申请日：1993-02-01

申请人： Mitsuo Hitomi ,  Junsou Sasaki ,  Tadayoshi Kaide

发明人： Mitsuo Hitomi ,  Junsou Sasaki ,  Tadayoshi Kaide

IPC分类号： F02D13/02 ,  F02D41/00 ,  F02D41/14 ,  F02F1/42 ,  F02D43/00

CPC分类号： F02D13/0215 ,  F02B37/02 ,  F02D13/0234 ,  F02D13/0261 ,  F02D41/0002 ,  F02D41/1475 ,  F02F1/4214 ,  F02B2275/18 ,  F02D2041/001 ,  Y02T10/144 ,  Y02T10/18 ,  Y02T10/42

摘要： An engine-control system is structured in such a way that a timing for closing the intake valve is retarded and the air-fuel ratio is so set as to become a rich air-fuel ratio richer than, for example, the stoichiometric air-fuel ratio, in a region where the load is low. On the other hand, in a region where the load is high, the timing for closing the intake valve is set earlier and the air-fuel ratio is so set as to become a lean air-fuel ratio leaner than, for example, the stoichiometric air-fuel ratio.

摘要翻译： 发动机控制系统被构造成使得关闭进气门的时间被延迟，并且空燃比被设定为变得比例如理论空燃比的浓空燃比 在负载低的区域。 另一方面，在负荷高的区域中，将进气门关闭的时间设定得较早，空燃比设定为比例如化学计量比的稀空燃比 空燃比。

公开(公告)号：US5396874A

公开(公告)日：1995-03-14

申请号：US46272

申请日：1993-04-14

申请人： Mitsuo Hitomi ,  Tadayoshi Kaide ,  Junsou Sasaki

发明人： Mitsuo Hitomi ,  Tadayoshi Kaide ,  Junsou Sasaki

IPC分类号： F01L13/00 ,  F02B29/08 ,  F02B33/36 ,  F02B37/12 ,  F02B39/04 ,  F02D13/02 ,  F02D23/00 ,  F02B33/44

CPC分类号： F02D13/0238 ,  F02B29/08 ,  F02B33/36 ,  F02B37/12 ,  F02B39/04 ,  F02D13/0261 ,  F02D23/00 ,  Y02T10/144 ,  Y02T10/146 ,  Y02T10/18

摘要： A controller for a supercharged engine includes a supercharger for supercharging intake air, an intercooler for cooling the intake air discharged from the supercharger, a valve timing varying device for varying valve timing so that an overlapping term, in which both intake and exhaust valves open, is longer when an engine speed is relatively high than when the engine speed is relatively low, and a controller for controlling the valve timing varying device so that when the overlapping term is short at relatively low speed of the engine, the intake valves close at a timing later than a timing at which the intake valves close when the overlapping term is long at relatively high speed of the engine.

摘要翻译： 用于增压发动机的控制器包括用于对进气进行增压​​的增压器，用于冷却从增压器排出的进气的中间冷却器，用于改变气门正时的气门正时变化装置，使得进气门和排气门同时打开的重叠项， 当发动机转速比发动机转速相对较低时发动机转速相对较高时，时间越长;以及用于控制气门正时变化装置的控制器，使得当重叠项在发动机的相对较低的速度下短时，进气门关闭在 在重叠项在发动机的相对高的速度下长时，进气门关闭的时间的时间晚。

公开(公告)号：US5203311A

公开(公告)日：1993-04-20

申请号：US788128

申请日：1991-11-05

申请人： Mitsuo Hitomi ,  Toshihiko Hattori ,  Kenji Kashiyama ,  Junsou Sasaki ,  Kazuaki Umezawa ,  Tadayoshi Kaide ,  Noriyuki Iwata ,  Naoyuki Yamagata ,  Kazumasa Nomura

发明人： Mitsuo Hitomi ,  Toshihiko Hattori ,  Kenji Kashiyama ,  Junsou Sasaki ,  Kazuaki Umezawa ,  Tadayoshi Kaide ,  Noriyuki Iwata ,  Naoyuki Yamagata ,  Kazumasa Nomura

IPC分类号： F02D21/08 ,  F02M25/07

CPC分类号： F02D41/005 ,  F02D21/08 ,  F02M26/03 ,  F02M26/05 ,  F02M26/06 ,  F02M26/25 ,  F02B2275/18 ,  F02D41/006 ,  F02D41/0065 ,  F02M26/15 ,  F02M26/20 ,  F02M26/27 ,  F02M26/28 ,  F02M26/33 ,  F02M26/38 ,  F02M26/44 ,  Y02T10/47

摘要： Disclosed is an exhaust gas recirculation system for an engine having a high compression ratio or with a supercharger. An outside EGR duct connecting the exhaust system to the intake system is provided with a first control valve, which has a second outside EGR duct bypassing the first control valve. The second EGR duct has a second EGR control valve and a cooler. When the engine exists in an extremely low load state, the first and second control valves are closed to inhibit the outside EGR. In the light load state, the first control valve is opened while the second control valve is closed, thereby allowing recirculation of the EGR gases having high temperature and reducing the pumping loss. In the high load state, the first control valve is being closed while opening the second control valve, thereby increasing a recirculation ratio of EGR gases cooled by the cooler and performing both an improvement of anti-knocking performance and a decrease in pumping loss, as well as reducing the heat load of the exhaust system and within the engine.

公开(公告)号：US4633841A

公开(公告)日：1987-01-06

申请号：US769390

申请日：1985-08-26

申请人： Masahiko Matsuura ,  Tadashi Kaneko ,  Tadayoshi Kaide ,  Makoto Hotate

发明人： Masahiko Matsuura ,  Tadashi Kaneko ,  Tadayoshi Kaide ,  Makoto Hotate

IPC分类号： F02D41/00 ,  F02D41/02 ,  F02D41/14 ,  F02D41/04 ,  F02D41/26

CPC分类号： F02D41/1486

摘要： An engine air-fuel ratio control system in which the engine operating range is divided into a light load, medium load and heavy load regions. In the light load region, a control of the fuel supply is made so as to provide a mixture of leaner than the stoichiometric value. In the medium load region, a feedback control is made based on the signal from an O.sub.2 sensor and, in the heavy load region, a control is made to provide a richer mixture. In the transient between the light load and medium load regions, the air-fuel ratio is changed with a rate which changes in accordance with the rate of change in the engine load.

摘要翻译： 发动机空燃比控制系统，其中发动机工作范围分为轻负荷，中负荷和重负荷区域。 在轻负载区域中，进行燃料供给的控制以提供比化学计量值更稀的混合物。 在中负载区域中，基于来自O2传感器的信号进行反馈控制，并且在重负载区域中进行控制以提供更加丰富的混合物。 在轻负载区域和中负载区域之间的瞬变中，空燃比以随着发动机负荷变化率而变化的速率而变化。