Patents for F02F 5 - Piston rings, e.g. associated with piston crown (2,184)
08/2003
08/21/2003US20030154947 Piston assembly having counterflow thwarting construction for use in an internal combustion engine
08/20/2003EP1141593B1 Piston ring for the piston of an internal combustion engine
08/20/2003CN1437678A Internal combustion engines
08/20/2003CN1437676A Internal combustion engine with valve control
08/13/2003EP1333949A1 Method of producing by casting a piston with a cooled ring carrier
08/06/2003CN1117230C Piston ring for piston in I.C. engine
07/2003
07/17/2003WO2003058096A1 Side rail and combined oil control ring incorporated with the side rails for reduction of oil consumption
07/16/2003CN2560765Y Piston ring
07/10/2003WO2003021137A3 Cooled ring carrier for a piston
07/09/2003EP1325252A1 Two piece oil control ring with nitrided surface layers
07/09/2003EP1230413B1 Method for producing machine components that are provided with at least one sliding surface
07/02/2003EP1322794A2 Thermally applied coating for piston rings, consisting of mechanically alloyed powders
07/02/2003CN2558776Y Reverse twisted ceramal piston ring
07/02/2003CN1427144A Piston ring
06/2003
06/25/2003CN2557708Y Assembling piston ring
06/25/2003CN2557707Y Oil ring for piston ring of internal combustion engine
06/11/2003CN2555412Y Combined positioned sealing type piston ring
06/04/2003CN2554377Y High-efficient piston ring
05/2003
05/14/2003EP0975905B1 Internal combustion piston engine
05/14/2003CN2550518Y 自动密封活塞环 Auto piston ring seal
05/14/2003CN1108443C Piston ring structural body and method of mounting piston ring structural body
05/01/2003US20030079709 Piston assembly having counterflow thwarting construction for use in an internal combustion engine
04/2003
04/24/2003US20030075144 Internal combustion engines
04/24/2003US20030075143 Internal combustion engine with valve control
04/23/2003EP1304393A1 Piston ring excellent in resistance to scuffing, cracking and fatigue and method for producing the same, and combination of piston ring and cylinder block
04/16/2003CN2545375Y Complementary full-enclosed piston ring
04/02/2003CN1407224A Self lubricated non-sealed piston ring for IC engine fastener driving tool
04/02/2003CN1104575C Fitting method of sealing structure and piston ring structural body used in said sealing structure
03/2003
03/26/2003CN2541612Y Novel piston ring
03/26/2003CN1405441A 活塞环 Piston
03/19/2003EP1293302A2 A self lubricating, non-sealing piston ring for an internal combustion fastener driving tool
03/13/2003WO2003021137A2 Cooled ring carrier for a piston
03/12/2003CN1102994C Cylinder liner for internal combustion engine of diesel type
03/06/2003WO2003019050A1 Two piece oil control ring with nitrided surface layers
03/06/2003US20030042686 Self lubricating, non-sealing piston ring for an internal combustion fastener driving tool
02/2003
02/20/2003WO2003014600A1 Steel piston ring
02/12/2003EP1283344A1 Piston ring
02/12/2003CN2535570Y Conjugate double-ring piston ring
02/05/2003CN1395032A Molybdenum-spraying treatment of surface of piston ring
01/2003
01/23/2003US20030015163 Piston ring device in internal combustion engine
01/22/2003CN2532260Y Piston ring
01/22/2003CN2532259Y Conic surface connection piston ring
01/21/2003US6508473 Piston ring
01/16/2003DE10111122C1 Kolbenring für eine Hubkolbenmaschine und Hubkolbenmaschine Piston ring for a reciprocating piston and reciprocating piston engine
01/15/2003CN2531119Y Piston ring
01/15/2003CN1391033A Improved cylinder
01/08/2003CN2530051Y Internally expanded piston ring type piston assembly
12/2002
12/25/2002CN1387586A Method and device for producing machine components that are provided with at least one sliding surface
12/19/2002US20020190476 Oil-scrapper piston ring and a method for producing an oil-scraper piston ring
12/17/2002US6494461 Sliding member
12/05/2002WO2002097310A1 Oil ring for an internal combustion engine
12/04/2002EP1261819A1 Lubricated seals having micropores
12/04/2002CN2523975Y Fully-sealed concave-convex poiston rings
12/04/2002CN2523974Y Wear-resisting positon rings
12/04/2002CN2523973Y Mono-directional sealed piston ring
11/2002
11/27/2002CN2522631Y Combined piston gaseous ring to improve engine sealing property
11/13/2002CN2520420Y Full-enclosed piston ring
11/12/2002US6478003 Piston for a four-stroke internal combustion engine
11/07/2002WO2002088407A1 Nickel-aluminide based wear resistant material for piston rings
11/07/2002WO2002088406A1 Intermetallic wear-resistant material for piston rings
10/2002
10/30/2002EP0979352B1 A two-stroke diesel engine piston
10/29/2002US6470792 Combined compression and oil scraper piston ring
10/23/2002CN2517880Y Cross butt buckling piston ring
10/16/2002CN2516716Y Piston, piston ring assembly of internal-combustion engine
10/16/2002CN1374448A Piston ring for piston of internal combustion engine
10/16/2002CN1374447A Mechanical plunger and piston ring
10/16/2002CN1374445A Completely closed piston and piston ring assembly
10/09/2002CN2515431Y Piston ring for internal-combustion engine
10/02/2002DE19780253C2 Gußeisen und Kolbenring Cast iron and piston ring
10/02/2002CN2514130Y Sealed piston ring for IC engine
10/01/2002US6457721 Piston ring locator
09/2002
09/25/2002EP1242726A1 Internal combustion engines
09/25/2002EP1242721A1 Internal combustion engine with valve control
09/12/2002WO2002070926A1 Reciprocating engine
09/12/2002DE10207148A1 Kolbenring Piston ring
09/11/2002CN2510636Y Environmental-protection energy-saving piston ring
09/06/2002WO2002068706A1 Wear-resistant sliding member
09/04/2002CN2509331Y 节能活塞环 Saving piston ring
09/04/2002CN1367310A Piston ring with special opened gap
08/2002
08/29/2002US20020117808 Piston ring
08/14/2002EP1230413A1 Method and device for producing machine components that are provided with at least one sliding surface
08/14/2002EP0851984B1 Piston ring and piston assembly in an internal combustion engine
08/01/2002US20020101039 Piston ring locator
07/2002
07/31/2002EP1227270A2 Pinless piston ring locator
07/31/2002CN2503218Y Positioning lining whole sealed piston ring
07/25/2002DE10046956C2 Thermisch aufgetragene Beschichtung für Kolbenringe aus mechanisch legierten Pulvern Thermal spray coating for piston rings from mechanically alloyed powders
07/24/2002EP1224341A1 Process for electrolytic coating of a substrate
07/24/2002CN2502030Y Joint overlapping piston ring
07/24/2002CN2502029Y Piston ring
07/17/2002CN2500821Y Piston assembly
07/04/2002WO2002052179A1 Piston ring and method of producing the same
07/03/2002CN2498356Y Key-ring style gapless piston ring
06/2002
06/27/2002WO2002024970A3 Thermally applied coating for piston rings, consisting of mechanically alloyed powders
06/20/2002WO2002048422A1 Wear protection layer for piston rings, containing wolfram carbide and chromium carbide
06/20/2002US20020074733 Compression piston ring for use in internal combustion engine
06/20/2002DE10061750A1 Wolframhaltige Verschleißschutzschicht für Kolbenringe Tungsten-containing anti-wear layer for piston rings
06/05/2002EP0670960B2 Piston-cylinder assembly of an internal combustion engine
05/2002
05/29/2002CN1085784C Engine piston
05/23/2002WO2002040202A1 Method of producing by casting a piston with a cooled ring carrier
05/23/2002DE10057366A1 Method for producing a piston with cooled ring carrier
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