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公开(公告)号：US4182279A
公开(公告)日：1980-01-08
申请号：US859565
申请日：1977-12-12
CPC分类号： F02B23/08 , F02B19/12 , Y02T10/125
摘要： Disclosed is a combustion chamber of an internal combustion engine. A first raised portion having a flat bottom is formed on the inner wall of the cylinder head so that a first flat squish area is formed between the flat bottom of the first raised portion and the flat peripheral portion of the top face of the piston. A second raised portion is formed on the top face of the piston at a position opposite to the first raised portion with respect to the axis of the piston and has a spherical rear wall so that a second spherical shell shape squish area is formed between the inner wall of the cylinder head and the rear wall of the first raised portion. The first squish flow spouted out from the first squish area moves forward along the top face of the piston. The second squish flow spouted from the second squish area moves forward in the upper interior of the combustion chamber in the direction opposite to the spouting direction of the first squish flow. The first and second squish flows cooperate with each other to create a strong swirl motion rotating about a horizontal axis in the combustion chamber.
摘要翻译： 公开了内燃机的燃烧室。 具有平坦底部的第一凸起部分形成在气缸盖的内壁上，使得在第一凸起部分的平坦底部和活塞顶面的平坦周边部分之间形成第一扁平挤压区域。 第二凸起部分形成在活塞的顶面上，与活塞的轴线相对的第一凸起部分相对的位置处，并且具有球形后壁，使得第二球形壳体形状的挤压区域形成在内部 气缸盖的壁和第一凸起部分的后壁。 从第一个挤压区域喷出的第一个挤压流沿活塞顶面向前移动。 从第二挤压区域喷出的第二挤压流在燃烧室的上部内部沿与第一挤压流的喷射方向相反的方向向前移动。 第一和第二挤压流动彼此配合以产生围绕燃烧室中的水平轴线旋转的强旋流运动。
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公开(公告)号：US4519346A
公开(公告)日：1985-05-28
申请号：US290100
申请日：1981-08-04
申请人： Kiyoshi Nakanishi , Takeshi Okumura
发明人： Kiyoshi Nakanishi , Takeshi Okumura
CPC分类号： F02B31/00 , F02F1/4228 , F02B1/04 , Y02T10/146
摘要： A helically-shaped intake port comprising a helical portion and an inlet passage portion which is tangentially connected to the helical portion and extends so as to be slightly curved. The intake valve is arranged at the outlet open end of the helical portion. The first side wall of the inlet passage portion, which is located near the axis of the intake valve, has on its upper portion an inclined wall portion which is arranged to be directed downwards. The width of the inclined wall portion of the inlet passage portion is gradually increased towards the helical portion. The second side wall of the inlet passage portion, which is located remote from the axis of the intake valve, is vertically arranged and smoothly connected to the peripheral side wall of the helical portion, which extends circumferentially about the axis of the intake valve.
摘要翻译： 螺旋状进气口包括螺旋部分和入口通道部分，该通道部分切向地连接到螺旋部分并且延伸成稍微弯曲。 进气阀布置在螺旋部分的出口开口端。 入口通道部分的位于进气阀的轴线附近的第一侧壁在其上部具有倾斜的壁部分，该壁部被布置成向下指向。 入口通道部分的倾斜壁部分的宽度朝向螺旋部分逐渐增加。 入口通道部分的远离进气阀的轴线的第二侧壁垂直地布置并且平滑地连接到围绕进气门的轴线周向延伸的螺旋部分的周边侧壁。
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公开(公告)号：US4485774A
公开(公告)日：1984-12-04
申请号：US493570
申请日：1983-05-11
CPC分类号： F02F1/4228 , F02B1/04
摘要： An engine comprising an intake port which has a separating wall projecting downwardly from the upper wall of the intake port. The separating wall defines a helical portion, an inlet passage portion tangentially connected to the helical portion, and a bypass passage interconnecting the inlet passage portion and the helical portion. A rotary valve is arranged in the inlet portion of the bypass passage so that the axis of the rotary valve is substantially parallel to the axis of the stem of the intake valve. The rotary valve is actuated by a vacuum-operated diaphragm apparatus and is opened when the amount of air fed into the cylinder of the engine is increased beyond a predetermined value.
摘要翻译： 一种发动机，其特征在于，具有从所述进气口的上壁向下突出的分隔壁的进气口。 分隔壁限定螺旋部分，与螺旋部分切向连接的入口通道部分和将入口通道部分和螺旋部分相互连接的旁路通道。 旋转阀设置在旁通通道的入口部分中，使得旋转阀的轴线基本上平行于进气阀杆的轴线。 旋转阀由真空操作的隔膜装置致动，并且当进给发动机气缸的空气量增加超过预定值时打开。
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公开(公告)号：US4481915A
公开(公告)日：1984-11-13
申请号：US490321
申请日：1983-05-02
CPC分类号： F02B31/082 , Y02T10/146
摘要： An engine comprising an intake port which has a separating wall projecting downwardly from the upper wall of the intake port. The separating wall defines a helical portion, an inlet passage portion tangentially connected to the helical portion, and a bypass passage interconnecting the inlet passage portion to the helical portion. A rotary valve is arranged in the bypass passage and actuated by a vacuum operated diaphragm apparatus. The rotary valve is opened when the amount of air fed into the cylinder of an engine is increased beyond a predetermined value. A downwardly projecting rib is formed on the bottom face of the separating wall. The rib extends toward the helical portion from the rotary valve.
摘要翻译： 一种发动机，其特征在于，具有从所述进气口的上壁向下突出的分隔壁的进气口。 分隔壁限定螺旋部分，与螺旋部分切向连接的入口通道部分，以及将入口通道部分与螺旋部分相互连接的旁通通道。 旋转阀布置在旁路通道中并由真空操作的隔膜装置致动。 当进给发动机气缸的空气量增加超过预定值时，旋转阀打开。 在分隔壁的底面上形成向下突出的肋。 肋从旋转阀向螺旋部分延伸。
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公开(公告)号：US4296720A
公开(公告)日：1981-10-27
申请号：US43670
申请日：1979-05-30
CPC分类号： F02B23/08 , F02F1/242 , F02B1/04 , F02B2023/085 , Y02T10/125
摘要： An internal combustion engine comprising a first raised portion formed on the inner wall of the cylinder head, a second raised portion formed on the top face of the piston at a position opposite to the first raised portion with respect to the axis of the piston, and a third raised portion formed on the inner wall of the cylinder head above the second raised portion. A first flat squish area is formed between the flat peripheral top face of the piston and flat bottom face of the first raised portion. A second spherical shell shaped squish area is formed between the spherical bottom wall of the third raised portion and the spherical rear face of the second raised portion. A pair of spark plugs is arranged on the top face of the combustion chamber. One of the spark plugs is arranged in the vicinity of said first raised portion, and the other spark plug is arranged in the vicinity of said third raised portion.
摘要翻译： 一种内燃机，包括形成在所述气缸盖的内壁上的第一凸起部分，在与所述第一凸起部分相对于所述活塞的轴线相对的位置形成在所述活塞的顶面上的第二凸起部分，以及 在所述第二凸起部分上方形成在所述气缸盖的内壁上的第三凸起部分。 第一扁平挤压区域形成在活塞的平坦周边顶面和第一凸起部分的平坦底面之间。 在第三凸起部分的球形底壁和第二凸起部分的球形后表面之间形成第二球形壳形挤压区域。 一对火花塞布置在燃烧室的顶面上。 一个火花塞布置在所述第一凸起部分附近，另一个火花塞设置在所述第三凸起部分附近。
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公开(公告)号：US4284044A
公开(公告)日：1981-08-18
申请号：US35617
申请日：1979-05-03
CPC分类号： F02B23/08 , F02B1/04 , Y02T10/125
摘要： An internal combustion engine comprises a first raised portion formed on the inner wall of the cylinder head, a second raised portion formed on the top face of the piston at a position opposite to the first raised portion with respect to the axis of the piston, and a third raised portion formed on the inner wall of the cylinder head above the second raised portion. A first flat squish area is formed between the flat peripheral top face of the piston and the flat bottom face of the first raised portion. A second spherical shell shape squish area is formed between the spherical bottom wall of the third raised portion and the spherical rear face of the second raised portion. A recess is formed on the top face of the combustion chamber and arranged on an extension of the second squish area. The spark plug is arranged in the recess.
摘要翻译： 内燃机包括形成在气缸盖的内壁上的第一凸起部分，在相对于活塞的轴线相对于第一凸起部分的位置形成在活塞顶面上的第二凸起部分，以及 在所述第二凸起部分上方形成在所述气缸盖的内壁上的第三凸起部分。 第一扁平挤压区域形成在活塞的平坦周边顶面和第一凸起部分的平坦底面之间。 在第三凸起部分的球形底壁和第二凸起部分的球形后表面之间形成第二球形壳体挤压区域。 在燃烧室的顶面形成凹部，并配置在第二挤压区域的延伸部上。 火花塞布置在凹槽中。
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公开(公告)号：US4586469A
公开(公告)日：1986-05-06
申请号：US744997
申请日：1985-06-17
CPC分类号： F02B31/085 , F02F1/4214 , F02B1/04 , F02B2031/006 , F02F2001/245 , Y02T10/146
摘要： An engine having an intake port which comprises a straight port and a helical-shaped port which are separated by a separating wall. A control valve is arranged in the inlet portion of the straight port and opens when the engine is operating under a heavy load. A projection is formed on the side wall of the separating wall, which defines the straight port and is located downstream of the control valve. A bypass passage connected to the helix terminating portion of the helical portion of the helical-shaped port is formed in the separating wall. The projection has an arc-shaped cross-sectional tip face which is directed towards the upstream of the intake port. The inlet opening of the bypass passage is formed on the tip face of the projection.
摘要翻译： 一种具有进口的发动机，该进气口包括由分隔壁分隔开的直口和螺旋形口。 控制阀布置在直通口的入口部分，当发动机在重负载下运行时打开。 在分隔壁的侧壁上形成突起，该突出部限定了直口并位于控制阀的下游。 在分隔壁中形成有连接到螺旋形端口的螺旋部分的螺旋端接部分的旁路通道。 突起具有朝向进气口的上游的弧形的横截面顶端面。 旁通通路的入口开口形成在突起的前端面上。
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公开(公告)号：US4550699A
公开(公告)日：1985-11-05
申请号：US679066
申请日：1984-12-06
CPC分类号： F02B31/085 , F02F1/4214 , F02B1/04 , F02B2031/006 , F02F2001/245 , Y02T10/146
摘要： An engine in which the cylinders are each provided with a first intake valve, a second intake valve and an intake passage common to the first and second intake valves. The intake passage is divided into a central passage and two side passages located on each side of the central passage by two side separating walls, which extend from the valve stem guides of the first and second intake valves toward the upstream of the intake passage. The downstream end portion of the central passage is divided into two branch passages. Each of the branch passages is in communication with the corresponding side passage via an opening formed in the corresponding side separating wall. A fuel injector is arranged in the central passage, and a control valve is arranged in the central passage upstream of the fuel injector and opens when the engine is operating under a heavy load.
摘要翻译： 一种发动机，其中气缸各自设置有第一进气门，第二进气门和与第一和第二进气门共用的进气通道。 进气通道分为中央通道和中央通道两侧的两个侧通道，两侧分隔壁从第一和第二进气门的阀杆导向件朝向进气通道的上游延伸。 中央通道的下游端部被分成两个分支通路。 每个分支通道经由形成在相应的侧分隔壁中的开口与相应的侧通道连通。 燃料喷射器布置在中央通道中，并且控制阀设置在燃料喷射器上游的中央通道中，并且当发动机在重负载下操作时打开。
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公开(公告)号：US4502432A
公开(公告)日：1985-03-05
申请号：US495596
申请日：1983-05-18
申请人： Takeshi Okumura , Kiyoshi Nakanishi , Tokuta Inoue
发明人： Takeshi Okumura , Kiyoshi Nakanishi , Tokuta Inoue
CPC分类号： F02F1/4228 , F02B1/04
摘要： An engine comprising an intake port which has a separating wall projecting downwardly from the upper wall of the intake port. The separating wall defines a helical portion, an inlet passage portion tangentially connected to the helical portion, and a bypass passage interconnecting the inlet passage portion and the helical portion. The upper wall of the bypass passage is higher than that of the inlet passage portion. A rotary valve is arranged in the bypass passage and is actuated by a vacuum-operated diaphragm apparatus. The rotary valve is opened when the amount of air fed into the cylinder of the engine is increased beyond a predetermined value.
摘要翻译： 一种发动机，其特征在于，具有从所述进气口的上壁向下突出的分隔壁的进气口。 分隔壁限定螺旋部分，与螺旋部分切向连接的入口通道部分和将入口通道部分和螺旋部分相互连接的旁路通道。 旁路通道的上壁高于入口通道部分的上壁。 旋转阀设置在旁通通道中并由真空操作的隔膜装置致动。 当进入发动机气缸的空气量增加超过预定值时，旋转阀打开。
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公开(公告)号：US4470386A
公开(公告)日：1984-09-11
申请号：US398565
申请日：1982-07-15
申请人： Takeshi Okumura , Kiyoshi Nakanishi , Kiyoshi Isogai , Ituo Koga
发明人： Takeshi Okumura , Kiyoshi Nakanishi , Kiyoshi Isogai , Ituo Koga
CPC分类号： F02F1/4228 , F02B31/082 , F02B1/04 , Y02T10/146
摘要： A helically-shaped intake port comprising a helical portion formed around an intake valve, and a substantially straight inlet passage portion tangentially connected to the helical portion. A bypass passage is branched off from the inlet passage portion and connected to the helical portion. A rotary valve is arranged in the bypass passage and has an arm connected to a vacuum operated diaphragm apparatus. The rotary valve has a stop which is engageable with the arm. The arm is normally in engagement with the stop due to the spring force of a coil spring for retaining the rotary valve precisely at the maximum open position.
摘要翻译： 螺旋状进气口包括围绕进气阀形成的螺旋部分和与螺旋部切向连接的基本上直的入口通道部分。 旁通通道从入口通道部分分出并连接到螺旋部分。 旋转阀设置在旁通通道中，并且具有连接到真空操作的隔膜装置的臂。 旋转阀具有可与臂接合的止动件。 由于用于将旋转阀精确地保持在最大打开位置的螺旋弹簧的弹簧力，臂通常与止动件接合。
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