公开(公告)号：USRE40500E1

公开(公告)日：2008-09-16

申请号：US11498913

申请日：2006-08-03

申请人： Douglas A. Doers ,  Dean P. Bergman

发明人： Douglas A. Doers ,  Dean P. Bergman

IPC分类号： F01P3/02

CPC分类号： F01P3/16 ,  F02B2075/025 ,  F02F1/40

摘要： Improved internal combustion engine, particularly, an improved two-stroke, diesel aircraft engine. The invention includes a new wrist pin/connecting rod connection, a new cooling system for fuel injectors, a new cylinder head cooling arrangement, a new cooling jacket cross-feed arrangement, and a new combustion seal arrangement.

摘要翻译： 改进的内燃机，特别是改进的二冲程柴油机发动机。 本发明包括新的腕针/连杆连接，用于燃料喷射器的新的冷却系统，新的气缸盖冷却装置，新的冷却套交叉供给装置和新的燃烧密封装置。

公开(公告)号：US06622667B1

公开(公告)日：2003-09-23

申请号：US09663838

申请日：2000-09-15

申请人： Douglas A. Doers

发明人： Douglas A. Doers

IPC分类号： F01P106

CPC分类号： F02M37/0052 ,  F01P3/02 ,  F01P7/165 ,  F02B3/06 ,  F02B61/04 ,  F02B75/22 ,  F02B75/36 ,  F02B2075/025 ,  F02D33/006 ,  F02F1/24 ,  F02F1/38 ,  F02F7/0012 ,  F02M53/043 ,  F02M55/002

摘要： Improved internal combustion engine, particularly, an improved two-stroke, diesel aircraft engine. A first improvement includes a wrist pin/connection rod assembly. A plurality of fasteners extend through a wall of a wrist pin and into a wrist pin insert to secure the wrist pin to a cradle-like portion of a connecting rod. A second improvement includes a fuel injection system which cools fuel injectors with overflow fuel from a fuel pump. The overflow fuel is warmed as it cools the fuel injectors, thereby preventing ice-build up on a fuel filter in cold weather as the overflow fuel is recirculated to the fuel pump. A third improvement includes a new cylinder head cooling arrangement. The cylinder head and a cooling cap define an annular cooling passageway. Cooling fluid flows through the annular cooling passageway to cool the cylinder head. The cooling cap includes an inlet port and an outlet port which are not diametrically opposed. Accordingly, the annular cooling passageway includes a restricted portion to ensure cooling fluid flows completely around the annular cooling passageway to better cool the cylinder head. The cooling cap is adjustably mounted on the cylinder head, so that the cooling cap can be coupled to a cooling jacket independent of the location of the cylinder head on the engine or cylinder block, as when the cylinder head threads into the engine block. The same clamping device used to connect the cooling cap to the cylinder head can be used to secure the fuel injector to the cylinder head. A fourth improvement includes a cross-feed cooling passageway extending between multiple cylinder banks to provide thermal coupling between the cylinder heads and the lower crankcase of the engine, and to provide a safety arrangement for continued cooling fluid flow at least in the event a thermostat in communication with a cooling jacket should fail.

摘要翻译： 改进的内燃机，特别是改进的二冲程柴油机发动机。 第一改进包括腕针/连杆组件。 多个紧固件延伸穿过腕针的壁并进入腕针插入件中，以将腕销固定到连杆的支架状部分。 第二个改进包括燃料喷射系统，该燃料喷射系统用来自燃料泵的溢出燃料冷却燃料喷射器。 溢流燃料在冷却燃料喷射器时被加热，从而在溢出的燃料再循环到燃料泵时，在寒冷的天气中防止燃料过滤器上的积冰。 第三个改进包括一个新的气缸盖冷却装置。 气缸盖和冷却帽限定了环形冷却通道。 冷却流体流过环形冷却通道以冷却气缸盖。 冷却帽包括不直径相对的入口和出口。 因此，环形冷却通道包括限制部分，以确保冷却流体完全流过环形冷却通道，以更好地冷却气缸盖。 冷却盖可调节地安装在气缸盖上，使得冷却盖可以独立于发动机或气缸体上的气缸盖的位置而联接到冷却套筒上，如同气缸盖螺纹连接到发动机缸体中一样。 用于将冷却盖连接到气缸盖的相同夹紧装置可用于将燃料喷射器固定到气缸盖。 第四个改进包括在多个气缸组之间延伸的交叉进给冷却通道，以在气缸盖和发动机的下部曲轴箱之间提供热耦合，并且提供用于连续冷却流体流动的安全装置，至少在恒温器 与冷却套管的通讯应该失败。

公开(公告)号：US08371279B2

公开(公告)日：2013-02-12

申请号：US12570596

申请日：2009-09-30

申请人： Douglas A. Doers

发明人： Douglas A. Doers

IPC分类号： F01M13/00 ,  F02B25/06

CPC分类号： F01M13/021 ,  F01M13/028 ,  F01M2001/123 ,  F01M2001/126 ,  F01M2013/0005 ,  F01M2013/0044 ,  F02B2075/025 ,  F15B13/027 ,  F16K17/196

摘要： An internal combustion engine that includes a crankcase having a crankcase pressure defined within the crankcase relative to an ambient pressure. The crankcase pressure varies in response to operation of the internal combustion engine. A crankcase pressure regulator is in fluid communication with the crankcase, and the crankcase pressure regulator includes a first passageway defining a first flow path, a second passageway defining a second flow path in a parallel arrangement to the first passageway. When the crankcase pressure is less than a first predetermined pressure, the first valve moves to the open position to allow a fluid flow into the crankcase through the first passageway. When the crankcase pressure is greater than a second predetermined pressure, the second valve moves from the closed position to the open position to allow a fluid flow from the crankcase through the second passageway.

摘要翻译： 一种内燃机，其包括相对于环境压力具有在曲轴箱内限定的曲轴箱压力的曲轴箱。 曲轴箱压力响应于内燃机的操作而变化。 曲轴箱压力调节器与曲轴箱流体连通，并且曲轴箱压力调节器包括限定第一流动路径的第一通道，限定与第一通道并联布置的第二流动路径的第二通道。 当曲轴箱压力小于第一预定压力时，第一阀移动到打开位置以允许流体通过第一通道流入曲轴箱。 当曲轴箱压力大于第二预定压力时，第二阀从关闭位置移动到打开位置，以允许流体从曲轴箱流过第二通道。

公开(公告)号：US20100077972A1

公开(公告)日：2010-04-01

申请号：US12570596

申请日：2009-09-30

申请人： Douglas A. Doers

发明人： Douglas A. Doers

IPC分类号： F01M13/00 ,  F02B25/06

CPC分类号： F01M13/021 ,  F01M13/028 ,  F01M2001/123 ,  F01M2001/126 ,  F01M2013/0005 ,  F01M2013/0044 ,  F02B2075/025 ,  F15B13/027 ,  F16K17/196

摘要： An internal combustion engine that includes a crankcase having a crankcase pressure defined within the crankcase relative to an ambient pressure. The crankcase pressure varies in response to operation of the internal combustion engine. A crankcase pressure regulator is in fluid communication with the crankcase, and the crankcase pressure regulator includes a first passageway defining a first flow path, a second passageway defining a second flow path in a parallel arrangement to the first passageway. When the crankcase pressure is less than a first predetermined pressure, the first valve moves to the open position to allow a fluid flow into the crankcase through the first passageway. When the crankcase pressure is greater than a second predetermined pressure, the second valve moves from the closed position to the open position to allow a fluid flow from the crankcase through the second passageway.

摘要翻译： 一种内燃机，其包括相对于环境压力具有在曲轴箱内限定的曲轴箱压力的曲轴箱。 曲轴箱压力响应于内燃机的操作而变化。 曲轴箱压力调节器与曲轴箱流体连通，并且曲轴箱压力调节器包括限定第一流动路径的第一通道，限定与第一通道并联布置的第二流动路径的第二通道。 当曲轴箱压力小于第一预定压力时，第一阀移动到打开位置以允许流体通过第一通道流入曲轴箱。 当曲轴箱压力大于第二预定压力时，第二阀从关闭位置移动到打开位置，以允许流体从曲轴箱流过第二通道。

公开(公告)号：USRE41335E1

公开(公告)日：2010-05-18

申请号：US11234819

申请日：2005-09-23

申请人： Douglas A. Doers

发明人： Douglas A. Doers

IPC分类号： F02M15/00 ,  F01P1/06

CPC分类号： F02M37/0052 ,  F01P3/02 ,  F01P7/165 ,  F02B3/06 ,  F02B61/04 ,  F02B75/22 ,  F02B75/36 ,  F02B2075/025 ,  F02D33/006 ,  F02F1/24 ,  F02F1/38 ,  F02F7/0012 ,  F02M53/043 ,  F02M55/002

摘要： Improved internal combustion engine, particularly, an improved two-stroke, diesel aircraft engine. A first improvement includes a wrist pin/connection rod assembly. A plurality of fasteners extend through a wall of a wrist pin and into a wrist pin insert to secure the wrist pin to a cradle-like portion of a connecting rod. A second improvement includes a fuel injection system which cools fuel injectors with overflow fuel from a fuel pump. The overflow fuel is warmed as it cools the fuel injectors, thereby preventing ice-build up on a fuel filter in cold weather as the overflow fuel is recirculated to the fuel pump. A third improvement includes a new cylinder head cooling arrangement. The cylinder head and a cooling cap define an annular cooling passageway. Cooling fluid flows through the annular cooling passageway to cool the cylinder head. The cooling cap includes an inlet port and an outlet port which are not diametrically opposed. Accordingly, the annular cooling passageway includes a restricted portion to ensure cooling fluid flows completely around the annular cooling passageway to better cool the cylinder head. The cooling cap is adjustably mounted on the cylinder head, so that the cooling cap can be coupled to a cooling jacket independent of the location of the cylinder head on the engine or cylinder block, as when the cylinder head threads into the engine block. The same clamping device used to connect the cooling cap to the cylinder head can be used to secure the fuel injector to the cylinder head. A fourth improvement includes a cross-feed cooling passageway extending between multiple cylinder banks to provide thermal coupling between the cylinder heads and the lower crankcase of the engine, and to provide a safety arrangement for continued cooling fluid flow at least in the event a thermostat in communication with a cooling jacket should fail.

摘要翻译： 改进的内燃机，特别是改进的二冲程柴油机发动机。 第一改进包括腕针/连杆组件。 多个紧固件延伸穿过腕针的壁并进入腕针插入件中，以将腕销固定到连杆的支架状部分。 第二个改进包括燃料喷射系统，该燃料喷射系统用来自燃料泵的溢出燃料冷却燃料喷射器。 溢流燃料在冷却燃料喷射器时被加热，从而在溢出的燃料再循环到燃料泵时，在寒冷的天气中防止燃料过滤器上的积冰。 第三个改进包括一个新的气缸盖冷却装置。 气缸盖和冷却帽限定了环形冷却通道。 冷却流体流过环形冷却通道以冷却气缸盖。 冷却帽包括不直径相对的入口和出口。 因此，环形冷却通道包括限制部分，以确保冷却流体完全流过环形冷却通道，以更好地冷却气缸盖。 冷却盖可调节地安装在气缸盖上，使得冷却盖可以独立于发动机或气缸体上的气缸盖的位置而联接到冷却套筒上，如同气缸盖螺纹连接到发动机缸体中一样。 用于将冷却盖连接到气缸盖的相同夹紧装置可用于将燃料喷射器固定到气缸盖。 第四个改进包括在多个气缸组之间延伸的交叉进给冷却通道，以提供气缸盖和发动机的下部曲轴箱之间的热耦合，并提供用于连续冷却流体流动的安全装置，至少在恒温器 与冷却套管的通讯应该失败。

公开(公告)号：US06769383B2

公开(公告)日：2004-08-03

申请号：US10350748

申请日：2003-01-24

申请人： Douglas A. Doers ,  Dean P. Bergman

发明人： Douglas A. Doers ,  Dean P. Bergman

IPC分类号： F01P302

CPC分类号： F01P3/16 ,  F01P2003/021 ,  F01P2003/024 ,  F01P2003/027 ,  F02B3/06 ,  F02B61/04 ,  F02B2075/025 ,  F02B2075/1808 ,  F02F1/10 ,  F02F1/40

摘要： Improved internal combustion engine, particularly, an improved two-stroke, diesel aircraft engine. The invention includes a new wrist pin/connecting rod connection, a new cooling system for fuel injectors, a new cylinder head cooling arrangement, a new cooling jacket cross-feed arrangement, and a new combustion seal arrangement.

摘要翻译： 改进的内燃机，特别是改进的二冲程柴油机发动机。 本发明包括新的腕针/连杆连接，用于燃料喷射器的新的冷却系统，新的气缸盖冷却装置，新的冷却套交叉供给装置和新的燃烧密封装置。

公开(公告)号：US07836815B2

公开(公告)日：2010-11-23

申请号：US11688285

申请日：2007-03-20

申请人： Douglas A. Doers ,  David D. Driscoll

发明人： Douglas A. Doers ,  David D. Driscoll

IPC分类号： F01B31/10

CPC分类号： F02F3/22 ,  F01M2011/025 ,  F01M2011/027 ,  F02F3/20 ,  F16J1/14

摘要： A piston for an internal combustion engine, the engine having a connecting rod coupled to a wristpin, the wristpin being connected to the piston for pivotal movement about an axis, the piston comprising: a top portion and a generally cylindrically-shaped wall portion extending from the top portion, the top and wall portions defining a skirt cavity, the top portion having thereon a downwardly extending projection with a downwardly facing bearing surface for the wristpin, the bearing surface extending in the direction of the axis and defining a portion of a cylinder centered on the axis, and the projection having opposite sides facing the skirt cavity; at least one lubricant passage extending through the projection from one of the opposite sides and over the bearing surface to the other of the opposite sides; and a lubricant opening communicating between the lubricant passage and the bearing surface to supply lubricant to the bearing surface and to the wristpin.

摘要翻译： 一种用于内燃机的活塞，所述发动机具有联接到腕销的连接杆，所述腕销连接到所述活塞以围绕轴线枢转运动，所述活塞包括：顶部和大致圆柱形的壁部分，其从 顶部和顶部和壁部分限定了裙部空腔，顶部具有向下延伸的突起，该突出部具有向下的用于腕销的轴承表面，支承表面在轴线方向上延伸并且限定圆柱体的一部分 中心在轴上，并且具有面向裙部空腔的相对侧的突起; 至少一个润滑剂通道从相对侧中的一个延伸穿过所述突起并在所述支承表面上延伸到相对的另一侧; 以及润滑剂开口，其在所述润滑剂通道和所述支承表面之间连通以将润滑剂供应到所述支承表面和所述腕销。