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公开(公告)号：US5676107A
公开(公告)日：1997-10-14
申请号：US423947
申请日：1995-04-19
IPC分类号： F02P19/00 , F02B1/04 , F02B3/06 , F02B23/00 , F02B23/02 , F02B23/06 , F02B31/00 , F02B31/02 , F02F1/24 , F02F1/42
CPC分类号： F02F1/4228 , F02B31/00 , F02F1/242 , F02F1/4214 , F02B1/04 , F02B2031/006 , F02B2275/10 , F02B2275/14 , F02B3/06 , F02F2001/247 , Y02T10/123 , Y02T10/146
摘要： A direct injection diesel engine includes a cylinder head which is formed, for each cylinder, with a plurality of intake ports. At least one of the intake ports has an approximately straight throat extending tangentially to the cylinder and opening into a combustion chamber at upper reaches of swirling. Another of the intake ports has a throat opening into the combustion chamber at lower reaches of swirling. A glow plug extends downward from one side of the cylinder head, at which the intake ports open, toward a location between the other intake port. An exhaust port extends from another side of the cylinder head and opens into the combustion chamber.
摘要翻译： 直喷式柴油发动机包括：气缸盖，其对于每个气缸形成有多个进气口。 至少一个进气口具有与气缸相切延伸的大致直的喉部，并且在上游旋转时开启到燃烧室。 另一个进气口具有在下游回旋处进入燃烧室的喉部。 电热塞从进气口打开的气缸盖的一侧朝向另一个进气口之间的位置向下延伸。 排气口从气缸盖的另一侧延伸并通向燃烧室。
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公开(公告)号：US5603299A
公开(公告)日：1997-02-18
申请号：US489507
申请日：1995-06-12
CPC分类号： F02B31/00 , F02B2031/006 , F02B2275/48 , Y02T10/125 , Y02T10/146
摘要： An intake port of an engine cylinder is directed so as to introduce intake air flow into a combustion chamber in a desired direction. The intake port has a throat portion, extending upstream from a valve port and configured so as to meet the valve port at a given angle, and a transitional throat portion with a small radius of curvature between the throat portion and the valve port.
摘要翻译： 发动机气缸的进气口被引导以将进气流沿所需方向引入燃烧室。 进气口具有喉部，其从阀口的上游延伸并且被构造为以给定角度与阀口相接;以及在喉部和阀口之间具有小曲率半径的过渡喉部。
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公开(公告)号：US4671217A
公开(公告)日：1987-06-09
申请号：US795987
申请日：1985-11-07
申请人： Mitsuo Hitomi , Fumio Hinatase , Yasuhiro Yuzuriha
发明人： Mitsuo Hitomi , Fumio Hinatase , Yasuhiro Yuzuriha
IPC分类号： F02B27/02 , F02M35/104 , F02B27/00
CPC分类号： F02B27/0221 , F02B27/0242 , F02B27/0252 , F02B27/0273 , Y02T10/146
摘要： An intake system for a multicylinder internal combustion engine comprises an intake passage including a common passage portion opening to the atmosphere, first and second volume chambers communicated with each other by a communicating passage, and a plurality of discrete passage portions branching from the first volume chamber and respectively connected to the cylinders. The second volume chamber is arranged to communicate the discrete passage portions with each other at a portion downstream of the first volume chamber and the common passage portion is communicated to one of the first and second volume chambers. An on-off valve is disposed at each junction of the second volume chamber with the discrete passage portions to move between an open position and a closed position in which the effective cross-sectional area of the junction is narrowed to an extent sufficient to prevent reflection of the pressure wave generated in the discrete passage portion at the second volume chamber. The on-off valves are moved to the open position as the engine speed increases at least during heavy load operation of the engine.
摘要翻译： 用于多缸内燃机的进气系统包括：进气通道，包括通向大气的公共通道部分，通过连通通道彼此连通的第一和第二容积室;以及从第一容积室分支的多个离散通道部分 并分别连接到气缸。 第二容积室被布置成在第一容积室的下游的部分处将离散的通道部分彼此连通，并且公共通道部分连通到第一和第二容积室中的一个。 开关阀设置在第二容积室的每个接合处和离散的通道部分之间，以便在打开位置和闭合位置之间移动，其中接合部的有效截面面积变窄到足以防止反射的程度 在第二容积室的离散通道部分中产生的压力波。 随着发动机转速至少在发动机的重负载运行时，开关阀被移动到打开位置。
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公开(公告)号：US4679531A
公开(公告)日：1987-07-14
申请号：US795443
申请日：1985-11-06
申请人： Mitsuo Hitomi , Fumio Hinatase , Yasuhiro Yuzuriha
发明人： Mitsuo Hitomi , Fumio Hinatase , Yasuhiro Yuzuriha
CPC分类号： F02B27/0263 , F02B27/0221 , F02B27/0273 , F02B2075/1816 , F02B2075/1824 , F02B27/0252 , Y02T10/146
摘要： An intake system for an internal combustion engine has an intake passage comprising a common passage portion opening to the atmosphere, a surge tank connected to the downstream end of the common passage portion and a plurality of discrete passage portions branching from the surge tank and respectively connected to the cylinders. At least one interconnecting passage is provided to communicate each of the discrete passage portions with at least one of the other discrete passage portions at a portion downstream of the surge tank, and an on-off valve is disposed at each junction of the interconnecting passage with the discrete passage portions to open and close each junction. The on-off valve is opened at least when the engine speed exceeds a predetermined speed during heavy load operation of the engine.
摘要翻译： 用于内燃机的进气系统具有进气通道，该进气通道包括通向大气的公共通道部分，连接到公共通道部分的下游端的缓冲罐和从缓冲罐分支并分别连接的多个离散通道部分 到气瓶。 至少一个互连通道被设置成使得离散通道部分中的每一个与缓冲罐下游的一部分中的至少一个其它离散通道部分连通，并且开关阀设置在互连通道的每个连接处与 离散的通道部分来打开和关闭每个结点。 至少在发动机的重负载运转时发动机转速超过预定速度时，打开开关阀。
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公开(公告)号：US4846117A
公开(公告)日：1989-07-11
申请号：US184093
申请日：1988-04-20
CPC分类号： F02B27/021 , F02B27/0242 , F02B27/0252 , F02B2075/1824 , F02B27/0221 , F02B27/0236 , F02B27/0273 , F02B75/22 , Y02T10/146
摘要： A intake system for a multiple-cylinder engine having a plurality of cylinders has a common intake passage open to the atmosphere at its upstream end, a plurality of discrete intake passages which communicate the respective cylinders with the common intake passage by way of intake ports, and a circular passage which is communicated with the cylinders and is adapted to propagate pressure waves generated by the intake strokes without reflecting the pressure waves. A part of the circular passage which does not form a part of the intake air path through which intake air is introduced into the cylinders is smaller in cross-section than a part of the circular passage which forms a part of the intake air path.
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公开(公告)号：US4889082A
公开(公告)日：1989-12-26
申请号：US250413
申请日：1988-09-28
CPC分类号： F02B27/021 , F02B27/0242 , F02B27/0252 , F02B27/0273 , F02B27/0284 , F02B2075/1824 , F02B75/22 , Y02T10/146
摘要： An intake system for a multiple-cylinder engine has first and second branch passages, a plurality of discrete intake passages for connecting the cylinders to one of the first and second branch passages, an intake air supply passage, an upstream side communicating passage for communicating the first and second branch passages with each other and with the downstream end of the intake air supply passage, and a downstream side communicating passage for communicating the downstream side ends of the first and second branch passages with each other. The firing order is set so that the cylinders connected to each of the branch passages do not fire one after another. The first and second branch passages and the upstream side and downstream side communicating passages forming a circular passage for supercharging the engine by resonance tuning effect of intake air. The downstream side communicating passage is provided with a cross-sectional area changing means for changing the effective cross-sectional area of the downstream side communicating passage according to the engine speed to increase the effective cross-sectional area of the downstream side communicating passage with increase in the engine speed.
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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：US4951642A
公开(公告)日：1990-08-28
申请号：US438257
申请日：1989-11-20
IPC分类号： F02B23/08
CPC分类号： F02B23/08 , Y02T10/125
摘要： A combustion chamber structure including a cylinder head having a bottom surface for defining an upper portion of a combustion chamber, a piston having a top surface for defining a lower portion of the combustion chamber, an intake recess formed in the cylinder head for an intake port of the combustion chamber to define a part the chamber, an exhaust recess formed in the cylinder head for an exhaust port to define a part of the chamber. The intake recess is smaller than the exhaust recess in volume. An extended wall portion is formed at a boundary portion between the intake and exhaust recess in the cylinder head to extend along the intake port and project into the exhaust recess. An ignition plug is arranged in the vicinity of a tip end of the extended wall portion. A compact structure of the combustion chamber can be obtained with an improved combustion property.
摘要翻译： 一种燃烧室结构，包括具有用于限定燃烧室的上部的底表面的气缸盖，具有用于限定燃烧室的下部的顶表面的活塞，形成在用于进气口的气缸盖中的进气口 以限定所述室的一部分，形成在所述气缸盖中的用于排气口以限定所述室的一部分的排气凹部。 进气口的体积小于排气凹槽。 在气缸盖中的进气和排气凹槽之间的边界部分处形成有延伸的壁部，以沿着进气口延伸并突出到排气凹槽中。 火花塞布置在延伸壁部分的末端附近。 可以获得具有改善的燃烧性能的燃烧室的紧凑结构。
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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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