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公开(公告)号：US5704333A
公开(公告)日：1998-01-06
申请号：US733167
申请日：1996-10-17
申请人： Takeshi Okumura , Shigeo Furuno , Shizuo Sasaki
发明人： Takeshi Okumura , Shigeo Furuno , Shizuo Sasaki
IPC分类号： F02B17/00 , F02B23/08 , F02B23/10 , F02B31/08 , F02F1/42 , F02M69/00 , F02M69/04 , F02M61/14 , F02B31/00
CPC分类号： F02M69/047 , F02B31/085 , F02F1/4214 , F02M69/045 , Y02T10/146
摘要： According to the present invention, each of the cylinders of an engine is provided with a swirl port, which generates a swirl in the cylinder, and a conventional straight port. A swirl control valve is disposed in an inlet air passage connected to the straight port for blocking the flow of inlet air through the straight port. A fuel injection port is disposed in each of the swirl port and the straight port. The fuel injection port in the straight port is disposed at the position adjacent to the upper edge of the valve seat of the straight port inlet valve. When the swirl control valve blocks the inlet air passage leading to the straight port, fuel is injected from the fuel injection port of the straight port in the latter half of the intake stroke of the piston. The direction of fuel injection from the fuel injection port in the straight port is determined in such a manner that fuel is injected in the direction between the center axis of the cylinder and the center axis of the stem of the valve element of the inlet valve toward the opposite wall of the cylinder head or the upper part of the opposite wall of the cylinder.
摘要翻译： 根据本发明，发动机的每个气缸设置有在气缸中产生涡流的旋流口和常规的直口。 旋流控制阀设置在连接到直口的入口空气通道中，用于阻挡通过直通口的入口空气流。 燃料喷射口设置在每个旋流口和直通口中。 直通口中的燃料喷射口设置在与直通入口阀的阀座的上边缘相邻的位置处。 当涡流控制阀阻塞通向直通口的入口空气通道时，在活塞的进气冲程的后半部分中，从直接口的燃料喷射口喷射燃料。 从直线上的燃料喷射口喷射的燃料的方向是这样确定的，即燃料沿气缸的中心轴线与入口阀的阀元件的杆的中心轴线之间的方向被喷射到 气缸盖的相对壁或气缸的相对壁的上部。
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公开(公告)号：US5272404A
公开(公告)日：1993-12-21
申请号：US843621
申请日：1992-02-28
申请人： Toshiya Yuhi , Michio Hoshino , Toru Yano , Hideo Tamura , Isamu Serizawa , Etsuo Mayumi , Takashi Ushiku , Takeshi Okumura , Kouichi Koide
发明人： Toshiya Yuhi , Michio Hoshino , Toru Yano , Hideo Tamura , Isamu Serizawa , Etsuo Mayumi , Takashi Ushiku , Takeshi Okumura , Kouichi Koide
CPC分类号： H01R39/04
摘要： A commutator has such a construction that a flange having an outside diameter larger than the outside diameter of a cylindrical body is provided integrally with the cylindrical body in the vicinity of one end of the cylindrical body; guide grooves formed in a circular arc shape in cross section are provided on the flange at the boundary of the flange to the cylindrical body; engaging pieces passing through the guide grooves are provided on one end of a commutator segment; and engaging pieces are caused to deform plastically to fixedly fit the engaging pieces to the flange.
摘要翻译： 换向器具有这样一种结构，其外径大于圆柱体的外径的凸缘与圆柱体一体地设置在圆柱体的一端附近; 形成为圆弧形状的导向槽的横截面设置在凸缘的边缘处的凸缘上的圆筒体上; 通过引导槽的接合件设置在换向器段的一端; 导致接合件塑性变形以将接合件固定地配合到凸缘上。
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23.发明授权Internal combustion engine cylinder head variable swirl siamese type intake port structure with bypass passage from straight intake passage communicated by gap to helical intake passage 失效内燃机气缸盖可变旋流暹罗式进气口结构，带有从间隙连接到螺旋进气通道的直进通道的旁路通道
公开(公告)号：US4699104A
公开(公告)日：1987-10-13
申请号：US869890
申请日：1986-06-03
申请人： Takeshi Okumura
发明人： Takeshi Okumura
CPC分类号： F02F1/4228 , F02B31/082 , F02B1/04 , F02B2031/006 , Y02T10/146
摘要： A variable swirl siamese type intake port structure for an internal combustion engine cylinder head includes a first generally straight intake passage which leads to a first intake port and a second generally helical intake passage which leads to a second intake port which is formed with a helical end vortex portion. A control valve is fitted in the first generally straight intake passage at an upstream portion thereof so as to control its flow resistance. A bypass passage opens from a point downstream of the control valve in the first generally straight intake passage to the helical end vortex portion of the second intake port. And a downstream portion of the bypass passage is communicated to a downstream portion of the second generally helical intake passage. Thereby the resistance to flow of air-fuel mixture of the generally helical intake passage is diminished, and the engine volumetric efficiency and the maximum attainable engine output power are increased.
摘要翻译： 用于内燃机气缸盖的可变旋流ese式进气口结构包括通向第一进气口的第一大致直的进气通道和通向第二进气口的第二大致螺旋形进气通道，第二进气通道形成有螺旋端 涡流部分。 控制阀在其上游部分处装配在第一大致直的进气通道中，以便控制其流动阻力。 旁通通道从第一大体上直的进入通道中的控制阀下游的点开口到第二进气口的螺旋端涡流部分。 并且旁路通路的下游部分连通到第二大致螺旋形进气通道的下游部分。 因此，通常螺旋式进气通道的空气 - 燃料混合物的流动阻力减小，并且发动机容积效率和最大可达到的发动机输出功率增加。
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公开(公告)号：US4516544A
公开(公告)日：1985-05-14
申请号：US494387
申请日：1983-05-13
IPC分类号： F02F1/42
CPC分类号： F02F1/4228
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 side wall of the helical portion has a slightly inclined portion located near the outlet portion of the bypass passage and expanding towards the separating wall so as to define a narrow passage portion between the inclined portion and the separating wall. 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。 螺旋部分的侧壁具有位于旁通通道的出口部分附近的稍微倾斜的部分，并且朝向分隔壁扩张，以便在倾斜部分和分隔壁之间限定一个狭窄的通道部分。 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：US4481916A
公开(公告)日：1984-11-13
申请号：US491770
申请日：1983-05-05
CPC分类号： F02B31/082 , F02F1/4228 , F02B1/04 , Y02T10/146
摘要： An engine comprising an intake port which has a separating wall projecting downward 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. The separating wall has a height which is equal to approximately half the height of the intake port in the vicinity of 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。 分离壁的高度等于旋转阀附近的进气口的高度的大约一半。
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26.发明授权Internal combustion engine with helical intake port and combustion chamber with two squish areas 失效内燃机具有螺旋形进气口和燃烧室两个挤压区域
公开(公告)号：US4480625A
公开(公告)日：1984-11-06
申请号：US421302
申请日：1982-09-22
CPC分类号： F02B23/08 , F02B1/04 , Y02T10/125
摘要： An internal combustion engine has a cylinder head formed with a wedge shaped cylinder head recess which has on its one side closer to a spark plug a steeply inclined roof surface of about 38.degree. to 40.degree. inclination and on its other side a gently inclined roof surface of about 5.degree. to 20.degree. inclination formed with an intake valve opening, and a piston formed with a piston recess which generally mates with the cylinder head recess and which has on its one side closer to the spark plug an inclined side surface of about 45.degree. inclination. The planar surface portion of the piston crown and the planar surface portion of the cylinder head on opposite sides of the recessed portions mutually define a relatively large squish area on the side of the gently inclined roof surface and a relatively small squish area on the side of the steeply inclined roof surface. A helical port is connected to the intake valve opening so as to generate a swirl flow of air-fuel mixture in the combustion chamber.
摘要翻译： 内燃机具有形成有楔形气缸盖凹部的气缸盖，其在其一侧更靠近火花塞，倾斜的倾斜顶部表面大约为38°至40°，另一侧具有倾斜的倾斜顶面 大约5°至20°的倾斜形成有进气门开口，以及形成有活塞凹部的活塞，活塞凹槽通常与气缸盖凹槽配合，并且其一侧在更靠近火花塞的一侧具有约45°的倾斜侧表面 DEG倾角。 活塞冠的平面表面部分和凹陷部分相对侧上的气缸盖的平面表面部分相互限定了在轻度倾斜的屋顶表面侧面上相对较大的挤压区域，以及相对较小的挤压区域 倾斜的屋顶表面。 螺旋口连接到进气门开口，以在燃烧室中产生空气 - 燃料混合物的旋流。
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公开(公告)号：US4478182A
公开(公告)日：1984-10-23
申请号：US490339
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 downward 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 conical shaped groove is formed on the bottom wall of the intake port. The lower end of the rotary valve is located in the groove.
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。 在进气口的底壁上形成圆锥形槽。 旋转阀的下端位于凹槽内。
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公开(公告)号：US4308832A
公开(公告)日：1982-01-05
申请号：US072159
申请日：1979-09-05
申请人： Takeshi Okumura , Hiroshi Ikeda
发明人： Takeshi Okumura , Hiroshi Ikeda
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 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. A projection projecting downwards and arranged to enclose the valve stem of the intake valve is formed in one piece on the upper wall of the helical portion. The projection has a maximum thickness at a position near the cross point of the circumferential wall of the projection and the straight line passing through the axis of the intake valve, and extending in parallel with a plane containing the inlet open end of the inlet passage portion. The upper half of the inclined wall portion of the side wall of the inlet passage portion is tangentially connected to the circumferential wall of the projection, which has the maximum thickness.
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。 位于进气门轴线附近的入口通道部分的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。 向下突出并且布置成包围进气门的阀杆的突起在螺旋部分的上壁上形成为一体。 突起在靠近突起的周壁的交叉点的位置和通过进气阀的轴线的直线上具有最大厚度，并且与包含入口通道部分的入口开口端的平面平行延伸 。 入口通道部分的侧壁的倾斜壁部分的上半部切向地连接到具有最大厚度的突起的周壁。
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公开(公告)号：US4271803A
公开(公告)日：1981-06-09
申请号：US41397
申请日：1979-05-22
CPC分类号： F02M35/10085 , F02B23/08 , F02B31/08 , F02M35/108 , F02M35/10183 , Y02T10/125 , Y02T10/146
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 secondary throttle valve is arranged in the intake passage located downstream of the throttle valve of a carburetor. A secondary intake passage is branched off from the intake passage located between the secondary throttle valve and the throttle valve of the carburetor and opens into the intake port at a position near the intake valve. The secondary throttle valve is closed when the engine is operating under a light load, while the secondary throttle valve is opened when an engine is operating under a heavy load.
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。 在位于化油器的节流阀下游的进气通道中设置有二次节流阀。 二次进气通道从位于二次节流阀和化油器节流阀之间的进气通道分支，并在靠近进气门的位置开口进入进气口。 当发动机在轻负载下操作时，次级节气门关闭，而当发动机在重负载下操作时，二次节气门打开。
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公开(公告)号：US09027521B2
公开(公告)日：2015-05-12
申请号：US13499477
申请日：2010-10-19
申请人： Takeshi Okumura , Manabu Tateno , Naoto Hisaminato
发明人： Takeshi Okumura , Manabu Tateno , Naoto Hisaminato
IPC分类号： F01L1/26 , F02D13/02 , F01L1/18 , F01L3/06 , F02B31/08 , F01L1/24 , F01L1/344 , F01L1/053 , F02B17/00 , F02M35/10
摘要： An intake apparatus of an engine includes: a first intake passage supplying fresh air to a cylinder; a second intake passage arranged near the first intake passage, and supplying fresh air to the cylinder; a first intake valve opening and closing the first intake passage at an aperture of the first intake passage; a second intake valve opening and closing the second intake passage at an aperture of the second intake passage. An opening timing of the first intake valve of the intake apparatus advances relative to a top dead center, and a valve lift amount of the first intake valve differs from that of the second intake valve, and there is a period while the valve lift amount of the first intake valve is larger than that of the second intake valve, in an intake stroke.
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