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公开(公告)号：US08342143B2
公开(公告)日：2013-01-01
申请号：US12674846
申请日：2009-01-16
CPC分类号： F02D15/02 , F02D13/0261 , F02D41/0025 , F02D2200/0611 , Y02T10/18
摘要： Disclosed is a spark ignition type internal combustion engine, which comprises a variable compression ratio mechanism capable of changing a mechanical compression ratio, and a variable valve timing mechanism capable of controlling the closing timing of an intake valve. The intake air flow to be fed to the inside of a combustion chamber is controlled mainly by changing the closing timing of an intake valve so that the mechanical compression ratio is set higher at an engine low-load running time than that at an engine high-load running time. The mechanical compression ratio at the engine low-load running time before completion of the warm-up of the internal combustion engine is set lower than that at the engine low-load running time after completion of the warm-up of the internal combustion engine. Although the expansion ratio at the engine low-load running time is raised to improve the mileage, it is possible at an engine cold start to heat an exhaust purifying catalyst promptly and to suppress the deterioration of an exhaust emission.
摘要翻译： 公开了一种火花点火式内燃机，其包括能够改变机械压缩比的可变压缩比机构，以及能够控制进气门的关闭正时的可变气门正时机构。 主要通过改变进气门的关闭正时来控制供给到燃烧室内部的进气流，使发动机低负荷运转时的机械压缩比在发动机高压运转时设定得更高， 负载运行时间。 在内燃机的预热结束之前的发动机低负荷运行时间的机械压缩比设定得比内燃机的预热结束后的发动机低负荷运转时的机械压缩比低。 虽然提高发动机低负荷运转时间的膨胀率以提高里程，但是在发动机冷启动时可以及时加热排气净化催化剂并抑制废气排放的劣化。
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公开(公告)号：US20100294245A1
公开(公告)日：2010-11-25
申请号：US12674846
申请日：2009-01-16
CPC分类号： F02D15/02 , F02D13/0261 , F02D41/0025 , F02D2200/0611 , Y02T10/18
摘要： Disclosed is a spark ignition type internal combustion engine, which comprises a variable compression ratio mechanism capable of changing a mechanical compression ratio, and a variable valve timing mechanism capable of controlling the closing timing of an intake valve. The intake air flow to be fed to the inside of a combustion chamber is controlled mainly by changing the closing timing of an intake valve so that the mechanical compression ratio is set higher at an engine low-load miming time than that at an engine high-load running time. The mechanical compression ratio at the engine low-load running time before completion of the warm-up of the internal combustion engine is set lower than that at the engine low-load running time after completion of the warm-up of the internal combustion engine. Although the expansion ratio at the engine low-load running time is raised to improve the mileage, it is possible at an engine cold start to heat an exhaust purifying catalyst promptly and to suppress the deterioration of an exhaust emission.
摘要翻译： 公开了一种火花点火式内燃机，其包括能够改变机械压缩比的可变压缩比机构，以及能够控制进气门的关闭正时的可变气门正时机构。 主要通过改变进气门的关闭正时来控制供给到燃烧室内部的进气流，使发动机低负载模拟时间的机械压缩比在发动机低负荷模拟时间高于发动机高压模式时， 负载运行时间。 在内燃机的预热结束之前的发动机低负荷运行时间的机械压缩比设定得比内燃机的预热结束后的发动机低负荷运转时的机械压缩比低。 虽然提高发动机低负荷运转时间的膨胀率以提高里程，但是在发动机冷启动时可以及时加热排气净化催化剂并抑制废气排放的劣化。
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公开(公告)号：US20110114063A1
公开(公告)日：2011-05-19
申请号：US12674625
申请日：2008-11-05
IPC分类号： F02B75/04
CPC分类号： F02D15/04 , F02D13/0234 , F02D41/0002 , 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. The mechanical compression ratio is held at a maximum mechanical compression ratio at the engine low load operation side and gradually made to decrease as the engine load increases at the engine high load operation side. The actual compression ratio is held nearly constant at the engine high load operation side and is made to decrease as the engine load decreases at the engine low load operation side.
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。 发动机低负荷运转侧的机械压缩比保持在最大的机械压缩比，随着发动机高负荷运转侧的发动机负荷的增加而逐渐减小。 在发动机高负荷运转侧，实际的压缩比保持近似恒定，随着发动机低负荷运转侧的发动机负荷减小而减小。
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公开(公告)号：US08161940B2
公开(公告)日：2012-04-24
申请号：US12673363
申请日：2008-11-06
CPC分类号： F02D15/04 , F02D13/0234 , Y02T10/18
摘要： Provided is a spark ignition type internal combustion engine comprising a variable compression ratio mechanism (A) capable of changing a mechanical compression ratio, and a variable valve timing mechanism (B) capable of controlling the closing timing of an intake valve. At an engine low-load running time, the mechanical compression ratio is made so higher than that at an engine high-load running time that the expansion ratio may be 20 or higher. In case the vacuum in an engine intake passage is lower than the required vacuum, the opening of a throttle valve (17) is reduced, and the valve closing timing of the intake valve is controlled so that the intake air in a quantity according to the engine load may be fed to the inside of a combustion chamber in accordance with the opening of the throttle valve. As a result, a brake booster or the like can be properly activated in the internal combustion engine having its mechanical compression ratio enlarged at the engine low-load running time.
摘要翻译： 提供一种火花点火型内燃机，其包括能够改变机械压缩比的可变压缩比机构（A）和能够控制进气门的关闭正时的可变气门正时机构（B）。 在发动机低负荷运转时间下，使机械压缩比高于发动机高负荷运转时的膨胀率为20以上的机械压缩比。 在发动机进气通道中的真空低于所需真空的情况下，节流阀（17）的打开减小，并且控制进气门的关闭正时，使得根据 发动机负荷可以根据节流阀的开度进入燃烧室的内部。 结果，在发动机低负载运转时间内其机械压缩比扩大的内燃机中可以适当地起动制动助力器等。
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公开(公告)号：US07882821B2
公开(公告)日：2011-02-08
申请号：US12281693
申请日：2007-10-01
CPC分类号： F02D13/0238 , F02B75/041 , F02D13/0269 , F02D15/04 , F02D41/0002 , F02D2041/001 , F02D2200/0414 , F02D2200/703 , F02D2250/18 , Y02T10/142 , Y02T10/42
摘要： An engine provided with a variable timing mechanism (B) able to control a closing timing of an intake valve (7) and a variable compression ratio mechanism (A) able to change a mechanical compression ratio and controlling the closing timing of the intake valve (7) to control the amount of intake air fed into a combustion chamber (5). To obtain an output torque in accordance with the required torque even when the atmospheric pressure changes, when the atmospheric pressure falls, the closing timing of the intake valve (7) is made to approach intake bottom dead center and the mechanical compression ratio is reduced.
摘要翻译： 具有能够控制进气门（7）的关闭正时的可变定时机构（B）的发动机和能够改变机械压缩比并控制进气门的关闭正时的可变压缩比机构（A） 以控制进入燃烧室（5）的进气量。 为了即使在大气压变化时也能根据要求的扭矩得到输出转矩，当大气压下降时，使进气门7的关闭正时接近进气下死点，机械压缩比降低。
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公开(公告)号：US20100131170A1
公开(公告)日：2010-05-27
申请号：US12514534
申请日：2007-10-26
CPC分类号： F02D15/04 , F02D13/0238 , F02D13/0269 , F02D41/0002 , F02D41/062 , F02D2013/0292 , F02D2041/001 , F02N19/004 , Y02T10/142 , Y02T10/42
摘要： An engine provided with a variable timing mechanism (B) able to control a closing timing of an intake valve (7) and a variable compression ratio mechanism (A) able to change a mechanical compression ratio. At the time of engine startup, the closing timing of the intake valve (7) is made the most delayed position so that the least intake air is fed to the inside of the combustion chamber (5) and the mechanical compression ratio is made the maximum compression ratio.
摘要翻译： 具有能够控制能够改变机械压缩比的进气门（7）和可变压缩比机构（A）的关闭正时的可变定时机构（B）的发动机。 在发动机启动时，进气门（7）的关闭正时为最大延迟位置，使得最少的进气进入燃烧室（5）的内部，机械压缩比最大 压缩率。
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公开(公告)号：US20090012700A1
公开(公告)日：2009-01-08
申请号：US12281693
申请日：2007-10-01
IPC分类号： F02D45/00
CPC分类号： F02D13/0238 , F02B75/041 , F02D13/0269 , F02D15/04 , F02D41/0002 , F02D2041/001 , F02D2200/0414 , F02D2200/703 , F02D2250/18 , Y02T10/142 , Y02T10/42
摘要： An engine provided with a variable timing mechanism (B) able to control a closing timing of an intake valve (7) and a variable compression ratio mechanism (A) able to change a mechanical compression ratio and controlling the closing timing of the intake valve (7) to control the amount of intake air fed into a combustion chamber (5). To obtain an output torque in accordance with the required torque even when the atmospheric pressure changes, when the atmospheric pressure falls, the closing timing of the intake valve (7) is made to approach intake bottom dead center and the mechanical compression ratio is reduced.
摘要翻译： 具有能够控制进气门（7）的关闭正时的可变定时机构（B）的发动机和能够改变机械压缩比并控制进气门的关闭正时的可变压缩比机构（A） 以控制进入燃烧室（5）的进气量。 为了即使在大气压变化时也能根据要求的扭矩得到输出转矩，当大气压下降时，使进气门7的关闭正时接近进气下死点，机械压缩比降低。
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公开(公告)号：US08322315B2
公开(公告)日：2012-12-04
申请号：US12669109
申请日：2008-11-04
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 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 the 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，机械压缩最大，使得膨胀比达到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。
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公开(公告)号：US08011332B2
公开(公告)日：2011-09-06
申请号：US12671074
申请日：2008-10-30
IPC分类号： F02B75/04
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。
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公开(公告)号：US08352157B2
公开(公告)日：2013-01-08
申请号：US12674625
申请日：2008-11-05
CPC分类号： F02D15/04 , F02D13/0234 , F02D41/0002 , 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. The mechanical compression ratio is held at a maximum mechanical compression ratio at the engine low load operation side and gradually made to decrease as the engine load increases at the engine high load operation side. The actual compression ratio is held nearly constant at the engine high load operation side and is made to decrease as the engine load decreases at the engine low load operation side.
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。 发动机低负荷运转侧的机械压缩比保持在最大的机械压缩比，随着发动机高负荷运转侧的发动机负荷的增加而逐渐减小。 在发动机高负荷运转侧，实际的压缩比保持近似恒定，随着发动机低负荷运转侧的发动机负荷减小而减小。
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