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公开(公告)号：US4996966A
公开(公告)日：1991-03-05
申请号：US299068
申请日：1989-01-19
CPC分类号： F02D13/023 , F01L1/34403 , F02B33/446 , F02B39/12 , F02D13/0249 , F02D13/0257 , F02D13/0261 , F02D23/005 , F02D41/0007 , F02B2275/18 , F02D2041/001 , Y02T10/144 , Y02T10/18
摘要： An engine is provided with a mechanical supercharger which is disposed in an intake passage of the engine and is driven by the output power of the engine. The supercharger is connected to and disconnected from the output power of the engine by a clutch. The engine has intake and exhaust valves which are opened and closed with an overlap time. A valve timing changing mechanism changes the overlap time in order to change the amount of air communicated between the intake and exhaust ports. A controller controls the valve timing changing mechanism and the clutch so that the amount of air communicated between the intake and exhaust ports is reduced and the supercharger is disconnected from the output power of the engine and does not operate when the operating condition of the engine is in a first operational range in which the amount of intake air is not more than a first preset value, the former is increased and the latter is connected with the output power of the engine so as to operate when the operating condition of the engine is in a second operational range in which the amount of intake air is not less than a second preset value which is larger than the first preset value, and the former is increased and the latter is disconnected from the output power of the engine when the operating condition of the engine is in a third operational range in which the amount of intake air is between the first and second preset values.
摘要翻译： 发动机设置有机械增压器，其设置在发动机的进气通道中并且由发动机的输出功率驱动。 增压器通过离合器连接到发动机的输出功率并与其分离。 发动机具有以重叠时间打开和关闭的进气门和排气门。 气门正时改变机构改变重叠时间，以改变进气口和排气口之间连通的空气量。 控制器控制气门正时改变机构和离合器，使得进气口和排气口之间连通的空气量减少，并且增压器与发动机的输出功率断开，并且当发动机的运行状态为 在进气量不大于第一预设值的第一操作范围内，前者增加，后者与发动机的输出功率相关联，以便在发动机的运行状态为 第二操作范围，其中进气量不小于大于第一预设值的第二预设值，并且前者增加，并且后者在发动机的运行状态下与发动机的输出功率断开 发动机处于其中进气量在第一和第二预设值之间的第三操作范围。
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公开(公告)号：US4829941A
公开(公告)日：1989-05-16
申请号：US114292
申请日：1987-11-29
CPC分类号： F02B75/22 , F02B27/021 , F02B27/0242 , F02B27/0252 , F02B2075/1824 , F02F2200/06 , Y02T10/146
摘要： An intake system for a multiple-cylinder engine has a main intake passage open to the atmosphere at its upstream end, a plurality of discrete intake passages which communicate the respective cylinders with the main intake passage by way of intake ports, and a circular passage which is communicated with the cylinders. The circular passage is adapted to propagate pressure waves generated by the intake strokes without reflecting the pressure waves, and is provided with a valve which opens the circular passage to permit propagation of the pressure waves in a predetermined high engine speed range. The length of the circular passage is selected so that the pressure waves resonate in the predetermined high engine speed range.
摘要翻译： 用于多缸发动机的进气系统具有在其上游端向大气开放的主进气通道，多个离散的进气通道，其通过进气口将相应气缸与主进气通道连通，以及圆形通道， 与气瓶连通。 圆形通道适于在不反映压力波的情况下传播由进气冲程产生的压力波，并且设置有打开圆形通道以允许压力波在预定的高发动机转速范围内传播的阀。 选择圆形通道的长度，使得压力波在预定的高发动机转速范围内谐振。
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公开(公告)号：US4738233A
公开(公告)日：1988-04-19
申请号：US832409
申请日：1986-02-24
申请人： Mitsuo Hitomi , Syunki Okazaki , Koji Onishi , Junso Sasaki , Kazunori Tominaga
发明人： Mitsuo Hitomi , Syunki Okazaki , Koji Onishi , Junso Sasaki , Kazunori Tominaga
CPC分类号： F02B29/083 , F02B27/0221 , F02B27/0294 , Y02T10/146
摘要： An engine intake system including an intake passage opening to the combustion chamber through an intake port having an intake valve. A control valve is provided in the intake valve for cyclically opening the intake passage. Upstream the control valve, the intake passage is provided with a tank which functions to reverse the negative pressure propagated from the control valve into a positive pressure which is then transmitted to the combustion chamber to increase the intake charge. A timing control mechanism is provided for retarding the opening timing of the control valve in a low speed, high load engine operation.
摘要翻译： 一种发动机进气系统，包括通过具有进气门的进气口向燃烧室开口的进气通道。 控制阀设置在进气门中，用于循环地打开进气通道。 上游控制阀时，进气通道设有一个罐，其功能是将从控制阀传播的负压反转成正压，然后传送到燃烧室以增加进气量。 提供了一种定时控制机构，用于在低速高负荷发动机运转中延迟控制阀的打开正时。
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公开(公告)号：US4932378A
公开(公告)日：1990-06-12
申请号：US111880
申请日：1987-10-23
CPC分类号： F02B29/083 , F02B27/021 , F02B27/0252 , F02B27/0289 , F02B1/04 , F02B2275/20 , F02B27/0215 , Y02T10/146
摘要： An intake system with a simple and compact structure for an internal combustion engine having a plurality of cylinders each cylinder having an intake port, the opening timing of the intake ports being determined so that that of each cylinder overlaps with that of another in which the intake stroke takes place subsequently to that in the former, the intake system comprising intake passges each being connected to the intake port of one of the cylinders, a juction portion connected to the respective intake passages, a resonance intake passage connected to the junction portion at one end thereof, in which the intake pressure resonance effect is to be produced and control valves provided in the respective intake passages, the opening timing of the respective control valves being determined so as to be retarded relative to that of said respective intake ports under at least a low speed and heavy load engine operating condition.
摘要翻译： 一种用于内燃机的具有简单紧凑结构的进气系统，其具有多个气缸，每个气缸具有进气口，进气口的打开正时被确定为使得每个气缸的开口正时与其中的进气口重叠。 行程发生在前一种情况下，进气系统包括各自连接到其中一个气缸的进气口的进气通道，连接到各个进气通道的喷嘴部分，一个在一个连接到连接部分的共振进气通道 其中要产生进气压力共振效应和设置在各个进气通道中的控制阀，各个控制阀的打开正时被确定为相对于所述各个进气口的打开正时至少在至少 低速和重载发动机的运行条件。
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公开(公告)号：US4958606A
公开(公告)日：1990-09-25
申请号：US125982
申请日：1987-11-27
申请人： Mitsuo Hitomi , Junso Sasaki , Akira Takai , Kazuaki Umezono , Fumio Hinatase
发明人： Mitsuo Hitomi , Junso Sasaki , Akira Takai , Kazuaki Umezono , Fumio Hinatase
CPC分类号： F02D13/023 , F02B29/08 , F02D13/0261 , F02D13/0269 , F02D15/04 , F02D23/00 , Y02T10/142 , Y02T10/144 , Y02T10/146
摘要： A supercharged engine has a geometric compression ratio of more than 8.5, and engine specifications are set to establish a relation, Y.gtoreq.-1.75X+10, in which an intake port closing timing Y is expressed by a crank angle after the piston reaches BDC and an overlapping angle X is expressed by a crank angle for an overlapping time period during which the intake valve and exhaust valve are both open.
摘要翻译： 增压发动机的几何压缩比大于8.5，发动机规格设定为建立一个关系，其中进气口关闭正时Y由活塞后的曲柄角度表示 到达BDC，并且重叠角度X由进气门和排气门都打开的重叠时间段的曲柄角表示。
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