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11. 发明授权

US10458307B2 Two-cycle diesel engine configured for operation with high temperature combustion chamber surfaces 有权
公开(公告)号：US10458307B2
公开(公告)日：2019-10-29
申请号：US16224281
申请日：2018-12-18
申请人： DeltaHawk Engines, Inc.
发明人： Douglas A. Doers , Robert A. Greco , Paul Olesen , Dennis Raymond Webb
IPC分类号： F01P3/02 , F02B9/02 , F02B23/06 , F02B33/34 , F02B37/04 , F02B75/02 , F02F1/00 , F02F3/00 , F02B1/12 , F02B33/02 , F02B37/00 , F02B61/04
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.

12. 发明授权

US07836815B2 Lubricant-cooled and wristpin lubricating piston 失效
标题翻译：润滑油冷却和活塞润滑活塞
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。

13. 发明授权

US11835135B1 Piston assembly with wrist pin cap 有权
公开(公告)号：US11835135B1
公开(公告)日：2023-12-05
申请号：US17851840
申请日：2022-06-28
申请人： DeltaHawk Engines, Inc.
发明人： Aaron Gamache Foege
IPC分类号： F16J1/18
CPC分类号： F16J1/18
摘要： A wrist pin cap for a piston. The wrist pin cap is configured to form an interference fit with the piston. In specific embodiments, the wrist pin cap is positioned within the piston adjacent to an end of a wrist pin. In certain specific embodiments, the wrist pin cap is configured to form an interference fit with a counterbore of the piston. Some specific embodiments include a method for shrink fitting a wrist pin cap within a piston. In more specific embodiments, the wrist pin cap is shrunk by an application of liquid nitrogen.

14. 发明授权

US08371279B2 Crankcase pressure regulator for an internal combustion engine 有权
标题翻译：用于内燃机的曲轴箱压力调节器
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。

15. 发明申请

US20100077972A1 CRANKCASE PRESSURE REGULATOR FOR AN INTERNAL COMBUSTION ENGINE 有权
标题翻译：内燃机起动压力调节器
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。

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