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1. 发明公开

US20230383693A1 INTERNAL COMBUSTION ENGINE 审中-公开
公开(公告)号：US20230383693A1
公开(公告)日：2023-11-30
申请号：US18245581
申请日：2021-09-16
申请人： Carnot Ltd.
发明人： Archie WATTS-FARMER , Duncan DUNBAR , Bo GORANSSON
IPC分类号： F02B75/28 , F02F3/00 , F02F3/18 , F02F1/18
CPC分类号： F02B75/282 , F02F3/0084 , F02F3/18 , F02F1/186
摘要： A piston arrangement (12) for an internal combustion engine (10) comprises one or more pistons (14) which are at least partly constructed from a technical ceramic material. An axially disposed bore (20) for receiving a heat transfer member (22) is provided in at least one of the pistons (14). The heat transfer member (22) is reconfigurable from a first, solid, state to a second state in which at least part of the heat transfer member (22) is in a liquid state so as to transfer heat away from and thus cool the piston rod (16) as the piston reciprocates. A cylinder arrangement (46) for the internal combustion engine (10) comprises one or more cylinders (48) which are at least partly constructed from a technical ceramic material. One or more grooves (54) are formed in the cylinder (48), to decrease the thermal gradient between the inside and outside of the cylinder (48). A piston (14) for the internal combustion engine (10) comprises a piston rod (16) and a piston crown (18) which is at least partly constructed from a technical ceramic material. An insulation arrangement (40) between the piston rod (16) and the piston crown (18) comprises segments (42) configured such that when disposed on the piston rod (16) axial slots or spaces are defined between the segments (42).

2. 发明授权

US10072604B2 Engine block construction for opposed piston engine 有权
公开(公告)号：US10072604B2
公开(公告)日：2018-09-11
申请号：US15050638
申请日：2016-02-23
申请人： AVL Powertrain Engineering, Inc.
发明人： James Mc Clearen , Jeffrey Wayne Klaver , Gary L. Hunter
IPC分类号： F02B75/28 , F02F1/18 , F01B7/14 , F02F1/00 , F02F1/22
CPC分类号： F02F1/186 , F01B7/14 , F02B75/28 , F02B75/282 , F02F1/004 , F02F1/22
摘要： An opposed-piston engine assembly is disclosed including a first cylinder liner containing a pair of first pistons that move toward one another in one mode of operation and away from one another in another mode of operation. The pistons are coupled to first and second crankshafts. Multiple block segments arranged in a side-by-side abutting relationship form the engine block including a first outboard segment, a first inboard segment, a second inboard segment, and a second outboard segment. Tensile members extend through the block segments tying them together as one structural unit. The first and second inboard segments abut one another at a seam and include bores that cooperate to receive the first cylinder liner. The first cylinder liner includes a liner support collar that is received in counter-bores defined by the first and second inboard segments at the seam between the first and second inboard segments.

3. 发明申请

US20160356241A1 Cylinder For Opposed-Piston Engines 审中-公开
标题翻译：对置活塞缸发动机
公开(公告)号：US20160356241A1
公开(公告)日：2016-12-08
申请号：US14732496
申请日：2015-06-05
申请人： ACHATES POWER, INC.
发明人： Kevin B. Fuqua
IPC分类号： F02F1/14 , F02F1/00
CPC分类号： F02F1/14 , F01B7/14 , F01P2003/021 , F02B25/08 , F02B75/28 , F02F1/004 , F02F1/10 , F02F1/102 , F02F1/186
摘要： A cylinder for opposed-piston engines includes a liner with a bore and longitudinally displaced intake and exhaust ports near respective ends thereof. An intermediate portion of the liner between the exhaust and intake ports contains a combustion chamber formed when the end surfaces of a pair of pistons disposed in opposition in the bore are in close mutual proximity. A compression sleeve encircles and reinforces the intermediate portion of the liner. An annular grid of pegs disposed between the intermediate portion and the compression sleeve supports the compression sleeve against the liner and defines a turbulent liquid flow path extending across the intermediate portion in a direction that parallels the longitudinal axis of the liner.
摘要翻译：用于相对活塞发动机的气缸包括具有孔的衬套和在其相应端部附近的纵向移位的进气和排气口。在排气和进气口之间的衬套的中间部分包含一个燃烧室，当在孔中相对设置的一对活塞的端面彼此靠近时形成。压缩套筒环绕并加强衬套的中间部分。设置在中间部分和压缩套筒之间的环形网格格架将压缩套筒支撑在衬套上，并且限定了在平行于衬套的纵向轴线的方向上跨越中间部分延伸的湍流液体流动路径。

4. 发明申请

US20160252043A1 Opposed Piston Two Stroke Engine Liner Construction 审中-公开
标题翻译：对置活塞两冲程发动机衬管结构
公开(公告)号：US20160252043A1
公开(公告)日：2016-09-01
申请号：US15050707
申请日：2016-02-23
申请人： AVL Powertrain Engineering, Inc.
发明人： James Mc Clearen , Jeffrey Wayne KLAVER , Gary L. HUNTER
IPC分类号： F02F1/00 , F02F3/00 , F02F1/02
CPC分类号： F02F1/004 , F02F1/02 , F02F1/186 , F02F3/00
摘要： An example of a cylinder liner according to the present disclosure includes a first portion having a first end and a second end and a second portion having a first end and a second end. The second portion is separate from the first portion and the second end of the first portion overlays the first end of the second portion. The first portion and the second portion are configured to receive a piston slideably disposed within the first portion and the second portion.
摘要翻译：根据本公开的气缸套的示例包括具有第一端和第二端的第一部分和具有第一端和第二端的第二部分。第二部分与第一部分分离，第一部分的第二端覆盖第二部分的第一端。第一部分和第二部分构造成容纳可滑动地设置在第一部分和第二部分内的活塞。

5. 发明授权

US09145845B2 Ventilation slots in a cylinder wall 有权
标题翻译：气缸壁中的通风槽
公开(公告)号：US09145845B2
公开(公告)日：2015-09-29
申请号：US14244919
申请日：2014-04-04
申请人： EcoMotors, Inc.
发明人： Peter Hofbauer
IPC分类号： F02F3/00
CPC分类号： F02F3/0015 , F02F1/186 , F02F2001/006 , F16J10/02
摘要： In two-stroke engines, it is common to provide two compression rings on the piston and an additional oil ring. The oil ring can be on the piston, but yields a longer piston. Alternatively, the oil ring is placed in a circumferential groove in the cylinder liner. One problem with such a configuration is that the compression rings move with respect to the oil ring and the annular volume between the two is compressed during reciprocation of the piston, which can cause pumping of oil into the ports. According to embodiments of the present disclosure, axial slots are formed in the cylinder liner that extends from the circumferential groove toward the ports extending along the bridges and beyond the ports. This provides a vent for the annular volume to avoid pumping the oil into the ports.
摘要翻译：在二冲程发动机中，通常在活塞和另外的油环上设置两个压缩环。油环可以在活塞上，但产生更长的活塞。或者，油环放置在气缸套中的周向凹槽中。这种构造的一个问题是压缩环相对于油环移动，并且两者之间的环形容积在活塞的往复运动期间被压缩，这可能导致油进入端口。根据本公开的实施例，在气缸套中形成轴向槽，该气缸套从圆周槽向沿着桥延伸并超出端口的端口延伸。这为环形容积提供了一个排气口，以避免将油泵入端口。

6. 发明授权

US09068498B2 Reduction of ring clipping in two-stroke cycle engines 有权
标题翻译：减少二冲程循环发动机中的环切削
公开(公告)号：US09068498B2
公开(公告)日：2015-06-30
申请号：US13757220
申请日：2013-02-01
申请人： Achates Power, Inc.
发明人： Brian J. Callahan
IPC分类号： F02B25/00 , F02B25/08 , F02F1/18 , F02F1/22 , F02B33/04 , F02B61/04 , F02B25/14 , F02B23/06 , F02B75/02
CPC分类号： F02B25/08 , F02B23/0663 , F02B25/14 , F02B33/04 , F02B61/045 , F02B2075/025 , F02F1/186 , F02F1/22
摘要： A port for a cylinder of a two-stroke cycle engine includes at least one generally circumferential array of port openings. Port openings have a shape that reduces ring clipping during engine operation. The port opening shape is defined at a bore surface by opposing top and bottom edges joined by side edges. Each of the top and bottom edges is characterized by rounded corner transitions to the side edges, a rounded peak, and inclined ramp portions extending from the rounded corner transitions to the rounded peak.
摘要翻译：用于二冲程循环发动机的气缸的端口包括端口开口的至少一个大致圆周的阵列。端口开口具有在发动机运行期间减少环形夹紧的形状。端口开口形状通过由侧边缘连接的相对的顶部和底部边缘限定在孔表面。顶部和底部边缘中的每一个的特征在于向侧边缘的圆角转变，圆形峰值以及从圆角转变延伸到圆形峰值的倾斜斜坡部分。

7. 发明申请

US20130298853A1 Impingement Cooling of Cylinders in Opposed-Piston Engines 有权
标题翻译：对置活塞式发动机气缸的冲击冷却
公开(公告)号：US20130298853A1
公开(公告)日：2013-11-14
申请号：US13942515
申请日：2013-07-15
申请人： Achates Power, Inc.
发明人： Feng Song Liu , Jiongyang Wu , Patrick R. Lee
IPC分类号： F01P3/02
CPC分类号： F01P3/02 , F02B75/282 , F02F1/10 , F02F1/186
摘要： A cylinder cooling construction includes a cylinder liner with a sidewall, exhaust and intake ports opening through the sidewall, a bore, and a plurality of feed channels that are formed with and extend along the sidewall from a central band of the cylinder toward the exhaust and intake ports. A sleeve covering the sidewall includes a plurality of impingement jet ports that are arranged in at least one sequence extending around the central band and that are in liquid communication with the plurality of feed channels. An annular member disposed between the liner and the sleeve reinforces the central band. The sleeve further includes an inside surface with spaced-apart annular recesses that with the sidewall define liquid coolant reservoirs in the vicinity of the ports that are in liquid communication with the feed channels. Channels through bridges of exhaust port have first ends in liquid communication with the coolant reservoir in the vicinity of the exhaust port and second ends that open through a portion of an exhaust end of the cylinder.
摘要翻译：气缸冷却结构包括具有侧壁的气缸套，通过侧壁开口的排气口和进气口，孔和多个进料通道，其沿着侧壁从气缸的中心带朝向排气口形成并延伸，进气口覆盖侧壁的套筒包括多个冲击射流端口，其以围绕中心带延伸的至少一个序列布置并且与多个馈送通道液体连通。设置在衬套和套筒之间的环形构件加强了中心带。套筒还包括具有间隔开的环形凹部的内表面，其中侧壁限定在与进料通道液体连通的端口附近的液体冷却剂储存器。通过排气口桥的通道具有与排气口附近的冷却剂储存器液体连通的第一端和通过气缸的排气端的一部分打开的第二端。

8. 发明授权

US08281755B2 Internal combustion engine with provision for lubricating pistons 有权
标题翻译：具有润滑活塞的内燃机
公开(公告)号：US08281755B2
公开(公告)日：2012-10-09
申请号：US12075557
申请日：2008-03-12
申请人： James U. Lemke , William B. McHargue
发明人： James U. Lemke , William B. McHargue
IPC分类号： F01P1/04 , F02B75/28
CPC分类号： F02B75/28 , F01P3/06 , F01P2003/005 , F01P2003/006 , F01P2003/021 , F01P2003/027 , F01P2003/028 , F02B75/282 , F02B75/32 , F02F1/186 , F16H1/22
摘要： An internal combustion engine including a cylinder with bore and a piston disposed to reciprocate in the bore is operated by moving the piston in the bore between top and bottom dead center positions and applying lubricant to a portion of the piston that protrudes from the bore. Lubricant is wiped from the piston as the piston travels into the bore toward its top dead center position.
摘要翻译：包括具有孔的气缸和设置成在孔中往复运动的活塞的内燃机通过在顶部和下部死点之间的孔中移动活塞并将润滑剂施加到从孔突出的部分活塞来操作。随着活塞向其上死点位置进入孔内时，润滑剂从活塞中擦拭。

9. 发明申请

US20120080007A1 Fuel injector support constructions for direct injection opposed-piston engines 有权
标题翻译：直喷式对置活塞式发动机的燃油喷射器支撑结构
公开(公告)号：US20120080007A1
公开(公告)日：2012-04-05
申请号：US13068678
申请日：2011-05-16
申请人： Randy E. Herold , Brendan M. Lenski , Fabien G. Redon
发明人： Randy E. Herold , Brendan M. Lenski , Fabien G. Redon
IPC分类号： F02B3/00
CPC分类号： F02B25/08 , F01B7/14 , F02B7/02 , F02B23/0645 , F02B75/28 , F02B2075/025 , F02B2275/14 , F02D41/3094 , F02F1/186 , F02M61/14 , Y02T10/123
摘要： An opposed-piston internal combustion engine with one or more ported cylinders and uniflow scavenging includes fuel injectors supported at compound angles with respect to the cylinders in order to directly inject spray patterns of fuel in opposing directions through the side walls of the cylinders.
摘要翻译：具有一个或多个端口气缸和单流扫气的相对活塞内燃机包括以相对于气缸的复合角度被支撑的燃料喷射器，以便通过气缸的侧壁直接喷射相反方向的燃料喷射模式。

10. 发明申请

US20110094223A1 Auxiliary systems for opposed piston engines 有权
标题翻译：相对活塞发动机辅助系统
公开(公告)号：US20110094223A1
公开(公告)日：2011-04-28
申请号：US12930206
申请日：2010-12-31
申请人： James U. Lemke , Ronald J. Hoffman , Michael H. Wahl , Patrick R. Lee
发明人： James U. Lemke , Ronald J. Hoffman , Michael H. Wahl , Patrick R. Lee
IPC分类号： F01P1/04 , F02C6/12
CPC分类号： F02B75/28 , F01P3/06 , F01P2003/005 , F01P2003/006 , F01P2003/021 , F01P2003/027 , F01P2003/028 , F02B75/282 , F02B75/32 , F02F1/186 , F16H1/22
摘要： An opposed piston engine includes at least one cylinder with inlet and exhaust ports and opposed pistons disposed in the cylinder for reciprocating opposed motion toward and away from each other. An auxiliary system pumps liquid coolant separately to the cylinder and pistons. Another auxiliary system controls the flow of intake and exhaust gas in the engine.
摘要翻译：相对的活塞发动机包括至少一个具有入口和排气口的气缸和设置在气缸中的相对的活塞，用于往复运动并相互移动。辅助系统将液体冷却剂分别泵入气缸和活塞。另一个辅助系统控制发动机中进气和排气的流量。

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