Patents
Sitemap › F02 - Combustion engines; Hot-gas or combustion-product engine plants › F02F - Cylinders, pistons, or casings for combustion engines; Arrangements of sealings in combustion engines › F02F 5 - Piston rings, e.g. associated with piston crown
Patents for F02F 5 - Piston rings, e.g. associated with piston crown (2,184)
10/1999
10/13/1999CN2343362Y Efficient energy-saving durable parallel ring piston
10/13/1999CN2343361Y 节能活塞环 Saving piston ring
10/13/1999CN1231387A Closed self-lubricating trapezoidal combined ring
10/13/1999CN1231386A Closing type combined piston ring
10/12/1999US5964467 Oil control ring of two piece type for internal combustion engine
10/06/1999CN2342113Y Laminated piston ring
10/05/1999US5960762 For internal combustion engines
09/1999
09/30/1999DE19911962A1 Piston ring or compression ring for gasoline and diesel engines
09/29/1999CN2340919Y Fully sealed piston ring
09/23/1999DE19809659C1 Verfahren zur Herstellung von Kolbenringen A process for the production of piston rings
09/15/1999CN2338497Y Leakage-free piston ring and piston associated with same
09/15/1999CN1228514A Sealed cylinder
09/08/1999EP0940216A2 Manufacturing method for piston rings
09/01/1999EP0939254A2 A thin 3-piece oil ring
09/01/1999EP0906527B1 Piston rings and/or a piston in an internal combustion engine of the diesel type and a method of running-in of a diesel engine
09/01/1999EP0854763B1 Process for producing an intermetallic join
09/01/1999CN2336100Y Binary super-thin damping piston ring
08/1999
08/25/1999EP0937923A2 Piston equipped with piston ring
08/25/1999EP0937922A2 Sealing structure and mounting of piston ring for use in the sealing structure
08/25/1999EP0937921A2 Piston ring and method of mounting the piston ring
08/25/1999CN2334886Y 节能活塞环 Saving piston ring
08/25/1999CN1226633A Piston ring structural body and method of mounting piston ring structural body
08/19/1999DE19905518A1 Piston ring combination for use in internal combustion engines
08/11/1999CN2332818Y 活塞环 Piston
07/1999
07/28/1999EP0931172A1 Coated wear resisting parts for internal combustion engines, specially piston rings, and method for their production
07/28/1999CN2330800Y Piston with wide piston ring
07/28/1999CN2330799Y Composite sealing component for cylinder
07/28/1999CN2330798Y Piston ring with good sealing performance
07/28/1999CN2330797Y High-effective energy-saving 'parent-subsidiary type' piston ring
07/21/1999CN2329775Y Piston device for internal combustion engine
07/21/1999CN1223336A Motor cycle piston ring
07/14/1999CN2328805Y Superimposed outlet type long life oil ring
07/14/1999CN2328804Y Superimposed outlet type long life energy saving piston ring
07/14/1999CN2328803Y Steel piston ring of diesel engine
07/07/1999EP0927839A2 Combined oil ring and manufacturing method thereof
07/01/1999WO1999032812A1 An improved piston ring
06/1999
06/30/1999CN2326737Y Oil-saving piston ring
06/23/1999EP0924319A2 Process for manufacturing a piston oil scraping ring
06/23/1999CN2325536Y Overlapping engaging piston ring
06/23/1999CN2325535Y Sealing type combination air piston ring
06/23/1999CN2325534Y Sealing type and self-lubricating ladder-shaped combination piston ring
06/23/1999CN2325533Y Sealing type piston ring
06/23/1999CN2325532Y Piston ring associated with piston crown with an overlapped connection section
06/16/1999CN2324302Y Combined overlap joint piston ring
05/1999
05/26/1999CN2320800Y Piston ring group
05/20/1999DE19854046A1 System for determining standard value deviations of IC engine
05/19/1999CN2319588Y Dual-bayonet piston ring
05/05/1999CN2317319Y 组合式活塞环 Combined Piston
05/05/1999CN2317318Y Composite piston ring
04/1999
04/21/1999EP0854939B1 Reinforcing component of which the basic material is austenitic cast iron
04/21/1999CN2315311Y Gaseous ring of small air cooling engine
04/14/1999CN2314109Y Combination of piston rings and piston with groove for thin rings
04/14/1999CN2314108Y Piston of diesel engine
04/07/1999EP0906527A1 Piston rings and/or a piston in an internal combustion engine of the diesel type and a method of running-in of a diesel engine
04/07/1999CN2313058Y 组合式活塞环 Combined Piston
04/07/1999CN2313057Y 活塞 Piston
04/07/1999CN2313056Y Piston of automobile engine
03/1999
03/31/1999EP0905420A2 Piston ring
03/31/1999EP0905419A2 Piston ring
03/31/1999EP0905362A1 Cylinder-piston assembly
03/31/1999CN2312333Y Piston with single head and overlapped ring
03/24/1999CN1211682A Forceful sealing oil ring
03/17/1999CN2310864Y High-efficiency energy-saving A-piston ring
03/09/1999US5879010 Seal assembly with mechanically joined anti-extrusion rings
02/1999
02/23/1999CA2110758C Slide surface construction formed of aggregate of fe crystals having body-centered cubic structure
01/1999
01/20/1999CN1205393A Combined long service, high air tight piston ring and I. C. engine made therefrom
01/13/1999EP0837982B1 An internal combustion engine having a coke scraping ring in a cylinder
01/13/1999CN1204724A 活塞环 Piston Ring
12/1998
12/23/1998CN2301541Y Compound ring piston
12/16/1998EP0884400A1 Hard coating material, sliding member covered with hard coating material, and manufacturing method thereof
11/1998
11/26/1998WO1998053192A1 s CYLINDER LINER FOR AN INTERNAL COMBUSTION ENGINE OF THE DIESEL TYPE
11/18/1998EP0878647A2 Piston ring made of cast iron
11/18/1998CN2297551Y Joggle piston ring
11/18/1998CN1199166A Tension measuring apparatus and method for piston ring
11/17/1998US5836280 Lubrication system for two cycle engine
11/11/1998EP0877239A1 Tension measuring apparatus and method for piston ring
11/05/1998DE19715758C1 Kolben für eine Hubkolbenbrennkraftmaschine Piston for an internal combustion piston engine
10/1998
10/28/1998CN2295852Y Wear-resistant piston ring
10/27/1998US5826491 Sealing arrangement on a piston-cylinder unit
10/22/1998WO1998046914A1 Internal combustion piston engine
10/13/1998US5820131 Piston ring having wear coating consisting of Cr2 N or a mixture of Cr2 N and Cr
10/07/1998CN1195068A Reciprocating piston multi-section end gap piston ring sealer
09/1998
09/30/1998EP0866933A1 Piston-cylinder assembly
09/24/1998WO1998041749A1 A piston for a two-stroke crosshead engine of the diesel type
09/22/1998CA2110547C Slide surface construction formed of aggregate of metal crystals having face-centered cubic structure
09/16/1998EP0864784A1 Piston ring
09/16/1998CN1193073A Forced-sealing oil ring
09/09/1998EP0863302A1 Internal combustion engine with horizontal cylinders
09/09/1998CN2290702Y Combination piston ring
08/1998
08/25/1998CA2070097C Compression ring for internal-combustion engines
08/19/1998CN2288279Y Energy-saving piston gas ring
08/12/1998CN1190441A Cast iron and piston ring
08/05/1998CN1189884A Piston ring for a piston in an I. C. engine
07/1998
07/29/1998EP0854939A2 Reinforcing component of which the basic material is austenitic cast iron
07/29/1998EP0854763A2 Process for producing an intermetallic join
07/21/1998US5782217 Piston for two cycle engine
07/15/1998EP0853191A1 The piston compression ring assemblies being self-lubricated and self-adjusted
07/08/1998EP0851984A1 Piston ring and piston assembly in an internal combustion engine
06/1998
06/30/1998US5773734 Nitrided powdered metal piston ring
06/24/1998EP0849511A2 Compression piston ring
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