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公开(公告)号：EP3277945A1
公开(公告)日：2018-02-07
申请号：EP16714647.1
申请日：2016-03-16
申请人： Achates Power, Inc.
CPC分类号： F02F1/004 , F02B75/28 , F02B75/282 , F02F1/186 , F02F2001/006
摘要： A cylinder liner for an opposed-piston engine, and corresponding methods of extending engine durability and thermal management therewith, has opposite ends and a bore with a longitudinal axis for supporting reciprocating movement of a pair of opposed pistons. An intermediate portion of the liner extends between the opposite ends and includes an annular liner portion within which the pistons reach respective TC locations. A liner ring is seated in a portion of the bore in the annular liner portion, between the TC locations, for scraping carbon from top lands of the pistons and/or increasing the thermal resistance of the annular liner portion.
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公开(公告)号：EP2580457B1
公开(公告)日：2017-02-15
申请号：EP11729435.5
申请日：2011-06-08
申请人： Wärtsilä Finland Oy
CPC分类号： F02F1/004 , C23C4/01 , C23C4/06 , C23C30/00 , F02F2001/006
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3.发明公开POWER ASSEMBLY FOR INTERNAL COMBUSTION ENGINE WITH WELDED-IN PISTON SCRAPER 有权牛皮癣菌FERR VERBRENNUNGSMASCHINE MIT EINGESCHWEISSTEM KOLBENABSTREIFER
公开(公告)号：EP2271834A1
公开(公告)日：2011-01-12
申请号：EP09725950.1
申请日：2009-02-03
发明人： BLYTHE, Neil , DOWELL, John, P. , RECORD, Barry , SCHLEIGH, Michael , ORLANDO, Richard, C. , GUNTI, Ranga, Srinivas
CPC分类号： F02F1/20 , F02B77/04 , F02F2001/006 , F16J10/04
摘要： A power assembly for an internal combustion engine includes a piston housed within a cylinder, with the cylinder having a welded cylinder head, with the cylinder also including a one-piece piston scraper which is welded to the cylinder head, as well as to the cylinder, with a common weld bead.
摘要翻译： 用于内燃机的动力组件包括容纳在气缸内的活塞，气缸具有焊接气缸盖，气缸还包括焊接到气缸盖的一体式活塞刮刀以及气缸 ，具有公共焊缝。
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4.发明公开
公开(公告)号：EP2106497A1
公开(公告)日：2009-10-07
申请号：EP07722002.8
申请日：2007-03-08
CPC分类号： F16J10/04 , F02F1/00 , F02F1/16 , F02F1/166 , F02F2001/006
摘要： The present invention relates to an insert (10, 110) for a cylinder sleeve (20, 120, 220) or for a cylinder (222) of an internal combustion engine (30, 130, 230) for reducing the diameter of the cylinder sleeve (20, 120, 220) or of the cylinder in the region (21, 221) of the upper dead center position of a piston (33, 233) guided into the cylinder sleeve (20, 120, 220) or the cylinder. According to the invention, the insert (10, 110) is in the form of an open, pretensioned ring with a ring joint (11, 111), and is held radially by its outwards acting radial forces and axially by a recess (121; 221) in the cylinder sleeve (20, 120, 220) or the cylinder (222) in such a way that the radial surface pressure around the circumference is approximately constant, wherein the ratio of the ring wall thickness (d) to the internal diameter (D) of the cylinder sleeve or the cylinder amounts to between 0.001 and 0.02.
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公开(公告)号：EP1534948A1
公开(公告)日：2005-06-01
申请号：EP03793856.0
申请日：2003-08-29
申请人： Innogy PLC
发明人： CONEY, Michael, Willoughby, Essex , CROSS, Andrew, Mark , SAMMUT, Richard, Mark , BAKER, Andrew, Robert
CPC分类号： F02F1/14 , F02B77/11 , F02F1/16 , F02F1/18 , F02F2001/006
摘要： A cylinder for an internal combustion engine. A metallic ring (6) surrounds the top of the cylinder. An insulating ring (7) is provided at the top of the cylinder between the metallic ring and cylinder wall. The axial extent of the insulating ring (7) is less than that of the metallic ring (6) and is determined so that it diverts some of the heat away from the relatively poorly cooled zone towards the top of the cylinder, but does not significantly obstruct the heat flow to surrounding cooling channels (5).
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公开(公告)号：EP0837982B1
公开(公告)日：1999-01-13
申请号：EP96922776.8
申请日：1996-06-28
申请人： MAN B&W Diesel A/S
发明人： GRUNDTMANN, Ole
IPC分类号： F02B77/04
CPC分类号： F02F1/22 , F02B3/06 , F02B77/04 , F02B2075/025 , F02F2001/006 , F02F2007/0097
摘要： A two-stroke crosshead engine with uniflow scavenging has a coke scraping ring in a cylinder and a piston (18) longitudinally displaceable in the cylinder and provided with piston rings (19, 19') which slide along the substantially cylindrical inner surface of the cylinder at the displacement of the piston and create a pressure-sealing separation between the volume below the piston and the working chamber (20), which is located above the uppermost piston ring of the piston and is defined by the uppermost piston ring (19'), the piston (18), the inner surface of the cylinder and the cylinder cover (8). The coke scraping ring (23) protrudes from the inner surface of the cylinder and extends annularly along it in an axial position so that the uppermost piston ring is positioned near the lower edge of the coke scraping ring when the piston is in its top dead centre position. In its cylindrical inner surface the coke scraping ring (23) is provided with several leakage grooves (24) which extend obliquely relative to the longitudinal axis of the cylinder from the lower surface to the top surface of the coke scraping ring. Alternatively, the leakage grooves may be provided in the cylindrical outer surface of the uppermost piston section (21) positioned above the uppermost piston ring.
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公开(公告)号：EP2271834B1
公开(公告)日：2018-07-18
申请号：EP09725950.1
申请日：2009-02-03
发明人： BLYTHE, Neil , DOWELL, John, P. , RECORD, Barry , SCHLEIGH, Michael , ORLANDO, Richard, C. , GUNTI, Ranga, Srinivas
CPC分类号： F02F1/20 , F02B77/04 , F02F2001/006 , F16J10/04
摘要： A power assembly for an internal combustion engine includes a piston housed within a cylinder, with the cylinder having a welded cylinder head, with the cylinder also including a one-piece piston scraper which is welded to the cylinder head, as well as to the cylinder, with a common weld bead.
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公开(公告)号：EP3192994A2
公开(公告)日：2017-07-19
申请号：EP16204988.6
申请日：2016-12-19
CPC分类号： F02B77/04 , F02F3/28 , F02F2001/006
摘要： A coke scraper ring (18) for placement proximate to a top dead center (24) in a cylinder (13) of an internal combustion engine (10) is disclosed. The coke scraper ring (18) includes an inner surface (34) configured to face a fuel-air mixture. A plurality of turbulators (20) are formed on the inner surface (34) for inducing turbulence in the fuel-air mixture.
摘要翻译： 公开了用于靠近内燃机（10）的气缸（13）中的上死点（24）设置的焦炭刮擦环（18）。 焦炭刮环（18）包括构造成面向燃料 - 空气混合物的内表面（34）。 多个湍流器（20）形成在内表面（34）上，用于引起燃料 - 空气混合物中的湍流。
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公开(公告)号：EP2582958A4
公开(公告)日：2015-06-03
申请号：EP11796049
申请日：2011-06-14
申请人： SCANIA CV AB
发明人： LIANDER FREDRIK , LARSÉN PER
CPC分类号： F02F1/20 , F02B77/04 , F02F11/00 , F02F11/002 , F02F11/005 , F02F2001/006
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公开(公告)号：EP1679434A4
公开(公告)日：2009-04-29
申请号：EP04792494
申请日：2004-10-15
申请人： RIKEN KK
发明人： OOGAKE KAZUHIKO , YAMADA MASAKI , SATOU KAZUKI
CPC分类号： F02F1/004 , F02F1/16 , F02F1/166 , F02F2001/006
摘要： An internal combustion engine has a cylinder block that has one or more cylinders, hollow-cylindrical cylinder liners that are placed in the cylinders, a piston that reciprocates in each cylinder liner and whose outer peripheral surface between the piston head and the uppermost ring groove forms a top land section, and a liner installation ring that forms in a cylinder an annular step section protruding to the inner periphery side of the cylinder liner and that is installed on either the cylinder block or the cylinder liner with the lower face of the liner installation ring facing the uppermost section of the cylinder liner. The liner installation ring is installed so as to correspond to a position that is the upper end position of the top land section when the piston has reached the top dead center, and the length of the inward protrusion of the liner installation ring from the inner periphery of each cylinder liner is set not less than 0.05 mm and not more than 0.5 mm.
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