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1.发明申请公开(公告)号：US20190120117A1
公开(公告)日：2019-04-25
申请号：US16224281
申请日：2018-12-18
CPC分类号： F01P3/02 , F02B1/12 , F02B9/02 , F02B23/0627 , F02B33/02 , F02B33/34 , F02B37/00 , F02B37/04 , F02B61/04 , F02B75/02 , F02B2075/025 , F02B2201/02 , F02B2700/03 , F02F1/004 , F02F3/0084 , F05C2201/021
摘要： A 2-cycle, direct-injection diesel engine configured to accommodate low cetane diesel and jet fuels. The engine includes combustion chambers having surfaces which are operable at high temperatures during engine operation to increase the combustion rate of low cetane fuels. The engine is further configured to reduce starting times in cold and/or low pressure situations such as those experienced during attempts to restart a plane engine at relatively high altitudes.
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公开(公告)号：US09909489B1
公开(公告)日：2018-03-06
申请号：US15286286
申请日：2016-10-05
申请人： Caterpillar Inc.
发明人： Chad Palmer Koci , Kenth Svensson
CPC分类号： F02B23/0627 , F02B23/0648
摘要： An internal combustion engine may have an engine block having a plurality of cylinders. The internal combustion engine may also have a piston reciprocatingly mounted with each cylinder and defining a combustion chamber therebetween. The internal combustion engine may also be configured with a fuel injector communicating fuel to the combustion chamber, the fuel creating a plurality of flame plumes when ignited. The internal combustion engine may also have a piston crown extending from the piston and defining a piston bowl, the piston crown including a circumferential wall terminating in a top ledge. Further, the internal combustion engine may include a plurality of fluid passageways in the piston crown, each fluid passageway including an ingress in the top ledge and an egress in the circumferential wall proximate the piston bowl.
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公开(公告)号：US20150107543A1
公开(公告)日：2015-04-23
申请号：US14391330
申请日：2013-04-12
发明人： Robert Böwing , Enrico Drehobl , Christian Drexel , Manfred Rapp
IPC分类号： F02F3/28
CPC分类号： F02F3/28 , F02B23/0621 , F02B23/0624 , F02B23/0627 , F02B23/08 , Y02T10/125
摘要： A piston for an internal combustion engine is disclosed. The piston may have a piston skirt with a centre axis. The piston may also have a piston crown disposed adjacent a top of the piston skirt. The piston crown may have a diameter D. The piston crown may have a piston crown margin of width b extending in a circumferential direction. The piston crown may also have a piston trough with a depth t. The piston trough may have a piston trough wall with a base diameter. The piston trough may also have at least one recess with a height h. The height h parallel to the direction of the centre axis may satisfy the following requirement: 0.2 t
摘要翻译： 公开了一种用于内燃机的活塞。 活塞可具有具有中心轴线的活塞裙部。 活塞还可以具有邻近活塞裙部的顶部设置的活塞冠。 活塞冠可以具有直径D.活塞冠可以具有在圆周方向上延伸的宽度为b的活塞冠边缘。 活塞冠也可以具有深度为t的活塞槽。 活塞槽可具有底座直径的活塞槽壁。 活塞槽还可具有至少一个高度为h的凹槽。 平行于中心轴方向的高度h可满足以下要求：0.2 t <= h <= t。
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4.发明授权公开(公告)号：US08646428B2
公开(公告)日：2014-02-11
申请号：US13579611
申请日：2011-02-18
申请人： Jan Eismark , Michael Balthasar
发明人： Jan Eismark , Michael Balthasar
IPC分类号： F02F3/00
CPC分类号： F02F3/26 , F02B23/0627 , F02B23/0651 , F02B23/0693 , F02B23/0696 , F02F3/00 , Y02T10/125
摘要： A piston is positioned for reciprocal movement in a combustion engine cylinder. Half way between flame plume impingement areas are arranged a first type of protrusions protruding into the combustion chamber and having a smooth form adapted for preserving kinetic energy in a flame plume. Each of the first type of protrusions has a shape of a longitudinal ridge that extends only in the outer bowl area. The first type of protrusions have a left side flank and a right side flank of the ridge when seen from the injector. The left side flank is formed differently compared to the right side flank in order to redirect the movement of a flame plume progressing towards the left side flank in a plane perpendicular to the reciprocal movement, differently compared to corresponding flame plume progressing, towards the right side flank.
摘要翻译： 活塞定位成在内燃机气缸中往复运动。 火焰羽流冲击区域之间的一半设置有突出到燃烧室中的第一类型的突起，并且具有适于保持火焰羽流中的动能的光滑形状。 第一类型的突起中的每一个具有仅在外碗区域中延伸的纵向脊的形状。 当从注射器看时，第一类型的突起具有脊的左侧面和右侧面。 与右侧侧面相比，左侧侧面形成不同的方向，以便在垂直于往复运动的平面中朝向左侧侧面改变火焰羽流的运动，与相应的火焰羽流进行不同地朝向右侧 侧翼。
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5.发明申请公开(公告)号：US20130199493A1
公开(公告)日：2013-08-08
申请号：US13579610
申请日：2011-02-18
申请人： Jan Eismark , Michael Balthasar
发明人： Jan Eismark , Michael Balthasar
IPC分类号： F02F3/00
CPC分类号： F02F3/26 , F02B23/0627 , F02B23/0651 , F02B23/0693 , F02B23/0696 , F02F3/00 , Y02T10/125
摘要： A piston is arranged for reciprocal movement in a combustion engine cylinder. Protrusions are or a ridge is arranged half way between flame plume impingement areas in a plane perpendicular to the reciprocal movement and protrude to the combustion chamber having a smooth form adapted for preserving kinetic energy in a flame plume. The protrusion or ridge includes a left side flank, a top section and a right side flank, and a transition section between each of the side flanks and the top section, the transition section including a deflection edge in order to minimize flow losses.
摘要翻译： 活塞被布置成用于在内燃机气缸中往复运动。 突出部分是或脊部布置在垂直于往复运动的平面中的火焰羽流冲击区域之间的一半处，并且突出到具有适于保持火焰羽流中的动能的光滑形式的燃烧室。 突起或脊包括左侧面，顶部和右侧面，以及在每个侧面和顶部之间的过渡部分，所述过渡部分包括偏转边缘，以便最小化流动损失。
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6.发明申请公开(公告)号：US20130047950A1
公开(公告)日：2013-02-28
申请号：US13579611
申请日：2011-02-18
申请人： Jan Eismark , Michaell Balthasar
发明人： Jan Eismark , Michaell Balthasar
IPC分类号： F02F3/00
CPC分类号： F02F3/26 , F02B23/0627 , F02B23/0651 , F02B23/0693 , F02B23/0696 , F02F3/00 , Y02T10/125
摘要： A piston is positioned for reciprocal movement in a combustion engine cylinder. Half way between flame plume impingement areas are arranged a first type of protrusions protruding into the combustion chamber and having a smooth form adapted for preserving kinetic energy in a flame plume. Each of the first type of protrusions has a shape of a longitudinal ridge that extends only in the outer bowl area. The first type of protrusions have a left side flank and a right side flank of the ridge when seen from the injector. The left side flank is formed differently compared to the right side flank in order to redirect the movement of a flame plume progressing towards the left side flank in a plane perpendicular to the reciprocal movement, differently compared to corresponding flame plume progressing, towards the right side flank.
摘要翻译： 活塞定位成在内燃机气缸中往复运动。 火焰羽流冲击区域之间的一半设置有突出到燃烧室中的第一类型的突起，并且具有适于保持火焰羽流中的动能的光滑形状。 第一类型的突起中的每一个具有仅在外碗区域中延伸的纵向脊的形状。 当从注射器看时，第一类型的突起具有脊的左侧面和右侧面。 与右侧侧面相比，左侧侧面形成不同的方向，以便在垂直于往复运动的平面中朝向左侧侧面改变火焰羽流的运动，与相应的火焰羽流进行不同地朝向右侧 侧翼。
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公开(公告)号：US07353797B1
公开(公告)日：2008-04-08
申请号：US11680489
申请日：2007-02-28
CPC分类号： F02B23/0621 , F02B19/04 , F02B19/18 , F02B23/04 , F02B23/0627 , F02B23/0663 , F02B23/0675 , F02B23/069 , F02B23/0693 , F02B23/101 , F02B2275/14 , F02F3/26 , F02F3/28 , Y02T10/123 , Y02T10/125
摘要： A geometry for an IC combustion chamber is disclosed that increases the air-fuel mixing efficiency within the chamber. The piston head includes a squish surface portion for generating a squish jet, and a bowl portion that cooperatively with the cylinder head defines a combustion volume. A horizontal channel extends between the squish surface portion and the bowl portion, and is adapted to provide a high-momentum jet into the bowl portion. A transverse channel may also be provided that directs the squish flow toward the horizontal channel, thereby generating a toroidal vortex therein. A premix fuel injector may inject fuel near the upstream end of the horizontal channel. A converging nozzle portion near the distal end of the horizontal channel may increase the flow speed into the bowl portion. A chamber fuel injector is disposed near the downstream end of the horizontal channel.
摘要翻译： 公开了用于IC燃烧室的几何形状，其增加了腔室内的空气 - 燃料混合效率。 活塞头包括用于产生挤压射流的挤压表面部分，与气缸盖配合的碗部分限定了燃烧体积。 水平通道在挤压表面部分和碗部分之间延伸，并且适于在碗部分中提供高动量射流。 还可以提供横向通道，其将挤压流引向水平通道，从而在其中产生环形涡流。 预混燃料喷射器可以在水平通道的上游端附近喷射燃料。 在水平通道的远端附近的会聚喷嘴部分可以增加进入碗部的流速。 腔室燃料喷射器设置在水平通道的下游端附近。
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公开(公告)号：US20050081819A1
公开(公告)日：2005-04-21
申请号：US10749222
申请日：2003-12-30
申请人： Tae-Gyun Kim
发明人： Tae-Gyun Kim
CPC分类号： F02B23/0627 , F02B23/0672 , F02F3/24 , F02F3/26 , Y02T10/125
摘要： A piston structure of an engine generates an automatic flow of gas through a hole penetrating from a bowl of the piston toward a lateral side of the piston. The structure provides a reinforcement of the compression and swirling movement in the combustion chamber of an engine, improvement of the mixture function of the fuel and air, reduction of the blowby leaking into the crankcase through the clearance between the cylinder wall and the piston, and prevention of the wear and tear of the cylinder liner and piston by eliminating wet fuel formed on the cylinder wall.
摘要翻译： 发动机的活塞结构通过从活塞碗穿过活塞的侧面的孔产生气体的自动流动。 该结构提供了在发动机的燃烧室中的压缩和旋转运动的加强，燃料和空气的混合功能的改善，通过气缸壁和活塞之间的间隙减少到曲轴箱的泄漏，以及 通过消除汽缸壁上形成的湿燃料来防止气缸套和活塞的磨损。
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公开(公告)号：US20040020457A1
公开(公告)日：2004-02-05
申请号：US10378280
申请日：2003-03-03
IPC分类号： F02B023/06
CPC分类号： F02B23/0669 , F02B23/0621 , F02B23/0624 , F02B23/0627 , F02B23/0633 , F02B23/0651 , F02B23/0687 , F02B2023/0612 , Y02T10/125
摘要： A Divided Chamber combustion system comprising an energy-cell built in the bottom of a deep piston bowl; aligned in the cylinder's centerline; in fluid communication with the main combustion chamber through one main transfer passage disposed in its centerline and a plurality of auxiliary transfer passages circularly disposed around it. Each auxiliary transfer passage is at least inclined on a plane parallel to the cell's centerline. The injection nozzle, centrally-located in the fire deck of the cylinder head, includes a central pintle discharging fuel on the cylinder's centerline; and a plurality of small auxiliary orifices circularly surrounding the central pintle; discharging at a radial angle to the cylinder's centerline.
摘要翻译： 分隔室燃烧系统，包括内置于深活塞碗底部的能量池; 在气缸中心线对齐; 通过设置在其中心线上的一个主传送通道与围绕其循环设置的多个辅助传送通道与主燃烧室流体连通。 每个辅助传送通道至少在平行于电池的中心线的平面上倾斜。 位于气缸盖的消防甲板中心的注射喷嘴包括一个在汽缸中心线上排放燃料的中心枢轴; 以及围绕中心枢轴环绕的多个小辅助孔; 以圆柱体中心线的径向角度排出。
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公开(公告)号：US5715787A
公开(公告)日：1998-02-10
申请号：US550991
申请日：1995-10-31
申请人： Hideo Kawamura
发明人： Hideo Kawamura
CPC分类号： F02B23/0636 , F02B19/165 , F02B23/0603 , F02B23/0627 , F02B23/0633 , F02B2023/0609 , F02B2023/0612 , F05C2201/021 , Y02T10/125
摘要： To provide an improved heat insulating structure in which the movement of air in the air space of a heat insulating layer is permitted as small as possible thus giving a higher heat shielding effect. A heat insulating layer of an air space is provided between a center tube and an external heat shielding tube in a fuel injection nozzle and a carbon getter is disposed at an interface between the heat insulating layer and a combustion chamber. When a combustion gas moves into the carbon getter, its carbon components are trapped and accumulated thus blocking between the heat insulating layer and the combustion chamber. As the heat insulating layer is isolated, its inside air remains stagnate increasing the heat shielding effect. This srtacture has been appied to the pre-combustion chamber.
摘要翻译： 为了提供一种改进的绝热结构，其中允许绝热层空气空间中的空气的移动尽可能小，从而得到较高的隔热效果。 在燃料喷射喷嘴中的中心管和外部隔热管之间设置有空气的绝热层，并且碳吸气剂设置在绝热层和燃烧室之间的界面处。 当燃烧气体移动到碳吸气剂中时，其碳组分被捕获并积聚，从而阻塞在隔热层和燃烧室之间。 隔热层隔离时，其内部空气滞留，增加了隔热效果。 这个问题已经被应用到燃烧室。
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