公开(公告)号：US20100192919A1

公开(公告)日：2010-08-05

申请号：US12671074

申请日：2008-10-30

申请人： Daisaku Sawada ,  Yukihiro Nakasaka ,  Daisuke Akihisa ,  Eiichi Kamiyama

发明人： Daisaku Sawada ,  Yukihiro Nakasaka ,  Daisuke Akihisa ,  Eiichi Kamiyama

IPC分类号： F02B75/04 ,  F01L1/34 ,  F02D45/00

CPC分类号： F02D41/08 ,  F02D9/02 ,  F02D13/0234 ,  F02D13/0238 ,  F02D15/00 ,  F02D15/04 ,  Y02T10/18

摘要： In an internal combustion engine, a variable compression ratio mechanism able to change a mechanical compression ratio and a variable valve timing mechanism able to control the closing timing of an intake valve are provided. The mechanical compression ratio is made to be the maximum mechanical compression ratio at low load operation regions excluding idling operation, while during idling operation, the mechanical compression ratio is made lower than the maximum mechanical compression ratio.

摘要翻译： 提供一种内燃机，能够改变机械压缩比的可变压缩比机构和能够控制进气门关闭正时的可变气门正时机构。 除了怠速运转以外，机械压缩比为低负荷运转区域的最大机械压缩比，在空转运转时，使机械压缩比低于最大机械压缩比。

公开(公告)号：US20100139622A1

公开(公告)日：2010-06-10

申请号：US12669109

申请日：2008-11-04

申请人： Daisuke Akihisa ,  Yukihiro Nakasaka ,  Eiichi Kamiyama ,  Daisaku Sawada

发明人： Daisuke Akihisa ,  Yukihiro Nakasaka ,  Eiichi Kamiyama ,  Daisaku Sawada

IPC分类号： F02B75/04 ,  F01L1/34

CPC分类号： F02D41/0002 ,  F02D13/0261 ,  F02D15/02 ,  F02D2041/001 ,  Y02T10/18 ,  Y02T10/42

摘要： In an internal combustion engine, a variable compression ratio mechanism able to change a mechanical compression ratio and a variable valve timing mechanism able to control the closing timing of an intake valve are provided. At the time of engine low load operation, the mechanical compression ratio is made the maximum so that the expansion ratio becomes 20 or more. Further, at the time of engine low load operation, in part of the operating region or all of the operating region, the actual compression ratio is lowered compared with the time of engine high load operation and, at the time of engine low load operation, at least when the actual compression ratio is being lowered compared with the time of engine high load operation, the throttle valve is made to close.

摘要翻译： 提供一种内燃机，能够改变机械压缩比的可变压缩比机构和能够控制进气门关闭正时的可变气门正时机构。 在发动机低负载运转时，使机械压缩比达到最大，使膨胀比成为20以上。 此外，在发动机低负载运转时，在运转区域的一部分或全部运转区域中，实际压缩比与发动机高负荷运转时相比降低，在发动机低负荷运转时， 至少当与发动机高负载运转时相比实际的压缩比被降低时，使节流阀关闭。

公开(公告)号：US20090187329A1

公开(公告)日：2009-07-23

申请号：US12226144

申请日：2007-04-09

申请人： Daisuke Akihisa ,  Daisaku Sawada ,  Eiichi Kamiyama

发明人： Daisuke Akihisa ,  Daisaku Sawada ,  Eiichi Kamiyama

IPC分类号： F02D41/00

CPC分类号： F02D13/0238 ,  F02D13/0269 ,  F02D15/04 ,  F02D2041/001 ,  F02D2041/002 ,  Y02T10/142

摘要： An internal combustion engine provided with a variable compression ratio mechanism able to change a mechanical compression ratio and an actual compression action start timing changing mechanism able to change a start timing of an actual compression action. The mechanical compression ratio is made maximum so that the expansion ratio becomes 20 or more at the time of engine low load operation, while the actual compression ratio at the time of engine low load operation is made an actual compression ratio substantially the same as that at the time of engine high load operation.

摘要翻译： 具有能够改变机械压缩比的可变压缩比机构的内燃机和能够改变实际压缩动作的起动定时的实际压缩动作开始时刻变更机构。 使发动机低负荷运转时的机械压缩比达到最大，使发动机低负载运转时的发动比达到20以上，同时将发动机低负荷运转时的实际压缩比与实际压缩比基本相同， 发动机高负载运行的时间。

公开(公告)号：US07802543B2

公开(公告)日：2010-09-28

申请号：US12226327

申请日：2007-04-09

申请人： Daisuke Akihisa ,  Daisaku Sawada ,  Eiichi Kamiyama

发明人： Daisuke Akihisa ,  Daisaku Sawada ,  Eiichi Kamiyama

IPC分类号： F02D15/04 ,  F02D13/00

CPC分类号： F02D15/04 ,  F02D13/0234 ,  F02D35/023 ,  F02D35/025 ,  F02D2041/001 ,  Y02T10/18

摘要： An internal combustion engine provided with a variable compression ratio mechanism able to change a mechanical compression ratio and an actual compression action start timing changing mechanism able to change a start timing of an actual compression action. An amount of intake air in accordance with the required load is fed into a combustion chamber by controlling the closing timing of the intake valve, while a pressure, temperature or density in the combustion chamber at the end of a compression stroke is maintained substantially constant regardless of the engine load by controlling the mechanical compression ratio.

摘要翻译： 具有能够改变机械压缩比的可变压缩比机构的内燃机和能够改变实际压缩动作的起动定时的实际压缩动作开始时刻变更机构。 通过控制进气门的关闭正时，通过控制进气阀的关闭正时，将所需负荷的进气量供给到燃烧室，同时压缩冲程结束时燃烧室内的压力，温度或密度保持不变 通过控制机械压缩比来控制发动机负荷。

公开(公告)号：US08413618B2

公开(公告)日：2013-04-09

申请号：US12670677

申请日：2008-10-24

申请人： Eiichi Kamiyama ,  Daisuke Akihisa ,  Daisaku Sawada

发明人： Eiichi Kamiyama ,  Daisuke Akihisa ,  Daisaku Sawada

IPC分类号： F02B75/04

CPC分类号： F02D13/0261 ,  F02D15/02 ,  Y02T10/18

摘要： An internal combustion engine comprises a variable compression ratio mechanism capable of varying the mechanical compression ratio and a variable valve timing mechanism capable of controlling the closing timing of an intake valve. In an engine low-load operation, the mechanical compression ratio is maintained at a maximum mechanical compression ratio. In an engine high-load operation, the mechanical compression ratio is gradually decreased as the engine load increases. In the engine high-load operation, a load at which a predetermined mechanical compression ratio lower than the maximum mechanical compression ratio is obtained is preset, and a throttle valve is closed in the range of loads lower than the preset load.

摘要翻译： 内燃机包括能够改变机械压缩比的可变压缩比机构和能够控制进气门的关闭正时的可变气门正时机构。 在发动机低负载运转中，机械压缩比保持在最大的机械压缩比。 在发动机高负荷运转中，随着发动机负荷的增加，机械压缩比逐渐降低。 在发动机高负荷运转中，预先设定得到比最大机械压缩比低的规定的机械压缩比的负荷，在低于预设载荷的负荷范围内关闭节流阀。

公开(公告)号：US08356582B2

公开(公告)日：2013-01-22

申请号：US12672143

申请日：2008-08-12

申请人： Daisuke Akihisa ,  Daisaku Sawada ,  Eiichi Kamiyama

发明人： Daisuke Akihisa ,  Daisaku Sawada ,  Eiichi Kamiyama

IPC分类号： F02B75/04

CPC分类号： F02D15/02 ,  F02D13/0226 ,  F02P5/152 ,  Y02T10/12 ,  Y02T10/18

摘要： A spark ignition internal combustion engine includes a variable expansion ratio mechanism which can alter the mechanical expansion ratio, and an exhaust variable valve mechanism which can alter the timing for opening an exhaust valve. The mechanical expansion ratio and the timing for opening the exhaust valve are set depending on the engine load such that the mechanical expansion ratio increases and the timing for opening the exhaust valve is retarded to the exhaust bottom dead center side as the engine load decreases. By setting the mechanical expansion ratio in such a manner depending on the engine load, thermal efficiency can be enhanced as compared with a case where the mechanical expansion ratio is set to make the actual compression rate constant for example. Consequently, a spark ignition internal combustion engine exhibiting high thermal efficiency is provided.

摘要翻译： 火花点火式内燃机包括可改变机械膨胀比的可变膨胀比机构，以及可改变排气阀打开正时的排气可变气门机构。 随着发动机负荷的减小，机械膨胀率和打开排气门的时间是根据发动机负载设定的，使得机械膨胀比增大，打开排气门的时间延迟到排气下死点。 通过根据发动机负荷设定机械膨胀率，与设定机械膨胀比使实际压缩比例如一致的情况相比，能够提高热效率。 因此，提供了表现出高热效率的火花点火内燃机。

公开(公告)号：US20090276140A1

公开(公告)日：2009-11-05

申请号：US12226327

申请日：2007-04-09

申请人： Daisuke Akihisa ,  Daisaku Sawada ,  Eiichi Kamiyama

发明人： Daisuke Akihisa ,  Daisaku Sawada ,  Eiichi Kamiyama

IPC分类号： F02D43/00 ,  F01L1/34 ,  F02B75/04

CPC分类号： F02D15/04 ,  F02D13/0234 ,  F02D35/023 ,  F02D35/025 ,  F02D2041/001 ,  Y02T10/18

摘要： An internal combustion engine provided with a variable compression ratio mechanism able to change a mechanical compression ratio and an actual compression action start timing changing mechanism able to change a start timing of an actual compression action. An amount of intake air in accordance with the required load is fed into a combustion chamber by controlling the closing timing of the intake valve, while a pressure, temperature or density in the combustion chamber at the end of a compression stroke is maintained substantially constant regardless of the engine load by controlling the mechanical compression ratio.

摘要翻译： 具有能够改变机械压缩比的可变压缩比机构的内燃机和能够改变实际压缩动作的起动定时的实际压缩动作开始时刻变更机构。 通过控制进气门的关闭正时，通过控制进气阀的关闭正时，将所需负荷的进气量供给到燃烧室，同时压缩冲程结束时燃烧室内的压力，温度或密度保持不变 通过控制机械压缩比来控制发动机负荷。

公开(公告)号：US20100192918A1

公开(公告)日：2010-08-05

申请号：US12670677

申请日：2008-10-24

申请人： Eiichi Kamiyama ,  Daisuke Akihisa ,  Daisaku Sawada

发明人： Eiichi Kamiyama ,  Daisuke Akihisa ,  Daisaku Sawada

IPC分类号： F02B75/04 ,  F01L1/34 ,  F02D45/00

CPC分类号： F02D13/0261 ,  F02D15/02 ,  Y02T10/18

摘要： An internal combustion engine comprises a variable compression ratio mechanism capable of varying the mechanical compression ratio and a variable valve timing mechanism capable of controlling the closing timing of an intake valve. In an engine low-load operation, the mechanical compression ratio is maintained at a maximum mechanical compression ratio. In an engine high-load operation, the mechanical compression ratio is gradually decreased as the engine load increases. In the engine high-load operation, a load at which a predetermined mechanical compression ratio lower than the maximum mechanical compression ratio is obtained is preset, and a throttle valve is closed in the range of loads lower than the preset load.

摘要翻译： 内燃机包括能够改变机械压缩比的可变压缩比机构和能够控制进气门的关闭正时的可变气门正时机构。 在发动机低负载运转中，机械压缩比保持在最大的机械压缩比。 在发动机高负荷运转中，随着发动机负荷的增加，机械压缩比逐渐降低。 在发动机高负荷运转中，预先设定得到比最大机械压缩比低的规定的机械压缩比的负荷，在低于预设载荷的负荷范围内关闭节流阀。

公开(公告)号：US20090178632A1

公开(公告)日：2009-07-16

申请号：US12227601

申请日：2007-04-09

申请人： Daisuke Akihisa ,  Daisaku Sawada ,  Eiichi Kamiyama

发明人： Daisuke Akihisa ,  Daisaku Sawada ,  Eiichi Kamiyama

IPC分类号： F01L1/34

CPC分类号： F02D15/04 ,  F01L1/3442 ,  F01L13/0063 ,  F01L2001/34426 ,  F02B75/041 ,  F02D13/023 ,  F02D13/0238 ,  F02D13/0269 ,  F02D41/0002 ,  F02D2041/001 ,  Y02T10/142 ,  Y02T10/42

摘要： A spark ignition type internal combustion engine comprises a variable compression ratio mechanism able to change a mechanical compression ratio, an actual compression action start timing changing mechanism able to change a start timing of an actual compression action, and an exhaust valve. At the time of engine low load operation, the mechanical compression ratio is maximized to obtain a maximum expansion ratio, and the actual compression ratio is set so that no knocking occurs. The maximum expansion ratio is 20 or more. The closing timing of the exhaust valve at the time of engine low load operation is made substantially intake top dead center. Due to this, even if operating the internal combustion engine in a state of a large expansion ratio, the temperature of the exhaust purification catalyst can be maintained at a relatively high temperature.

摘要翻译： 火花点火式内燃机包括能够改变机械压缩比的可变压缩比机构，能够改变实际压缩动作的开始正时的实际压缩动作开始定时改变机构和排气阀。 在发动机低负载运转时，将机械压缩比最大化以获得最大膨胀比，实际压缩比设定为不发生爆震。 最大膨胀比为20以上。 在发动机低负载运转时，排气门的关闭正时基本上为进气上止点。 由此，即使在大的膨胀比的状态下操作内燃机，也可以将排气净化催化剂的温度保持在较高的温度。

公开(公告)号：US20100206271A1

公开(公告)日：2010-08-19

申请号：US12672143

申请日：2008-08-12

申请人： Daisuke Akihisa ,  Daisaku Sawada ,  Eiichi Kamiyama

发明人： Daisuke Akihisa ,  Daisaku Sawada ,  Eiichi Kamiyama

IPC分类号： F02B75/04 ,  F01L1/34 ,  F02P5/04

CPC分类号： F02D15/02 ,  F02D13/0226 ,  F02P5/152 ,  Y02T10/12 ,  Y02T10/18

摘要： A spark ignition internal combustion engine includes a variable expansion ratio mechanism which can alter the mechanical expansion ratio, and an exhaust variable valve mechanism which can alter the timing for opening an exhaust valve. The mechanical expansion ratio and the timing for opening the exhaust valve are set depending on the engine load such that the mechanical expansion ratio increases and the timing for opening the exhaust valve is retarded to the exhaust bottom dead center side as the engine load decreases. By setting the mechanical expansion ratio in such a manner depending on the engine load, thermal efficiency can be enhanced as compared with a case where the mechanical expansion ratio is set to make the actual compression rate constant for example. Consequently, a spark ignition internal combustion engine exhibiting high thermal efficiency is provided.

摘要翻译： 火花点火式内燃机包括可改变机械膨胀比的可变膨胀比机构，以及可改变排气阀打开正时的排气可变气门机构。 随着发动机负荷的减小，机械膨胀率和打开排气门的时间是根据发动机负载设定的，使得机械膨胀比增大，打开排气门的时间延迟到排气下死点。 通过根据发动机负荷设定机械膨胀率，与设定机械膨胀比使实际压缩比例如一致的情况相比，能够提高热效率。 因此，提供了表现出高热效率的火花点火内燃机。