Patents
Sitemap › F16 - Engineering elements or units; General measures for producing and maintaining effective functioning of machines or installations; Thermal insulation in general › F16J - Pistons; Cylinders; Pressure vessels in general; Sealings › F16J 9 - Piston-rings, seats therefor; Ring sealings of similar construction in general
Patents for F16J 9 - Piston-rings, seats therefor; Ring sealings of similar construction in general (4,592)
07/2003
07/02/2003CN1427144A Piston ring
06/2003
06/25/2003CN2557752Y Wave surface self-compensation piston ring
06/25/2003CN1112510C Reciprocating piston engine
06/24/2003US6582646 Method for producing a mechanical part provided with a plastic moulded lining
06/11/2003EP0979366B1 Fractured seal ring
06/05/2003US20030102633 Seal ring
06/05/2003US20030101958 Piston assembly for an internal combustion engine
06/04/2003EP1315924A1 Piston ring for piston engines
05/2003
05/30/2003WO2003044354A1 A combined gas ring and the assembly of piston ring and piston
05/28/2003EP1029184A4 Improved accumulator piston
05/28/2003CN1109773C Self-lubricating piston ring material and piston ring for IC engine
05/15/2003US20030090066 Combined steel oil control ring
05/14/2003EP0975905B1 Internal combustion piston engine
05/14/2003CN1108443C Piston ring structural body and method of mounting piston ring structural body
05/07/2003EP1141577B1 A piston or plunger and a method for making the same
05/02/2003EP1306584A2 Complete piston
05/01/2003US20030079709 Piston assembly having counterflow thwarting construction for use in an internal combustion engine
04/2003
04/29/2003US6553892 Mounting structure for piston packing
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
04/15/2003US6547251 Ring groove for oil ring with coil expander of piston
04/09/2003EP0937216B1 Packing seal
04/09/2003EP0861391B1 Piston ring
04/09/2003EP0832382B1 Gas sealing ring
04/03/2003WO2003027542A1 Piston seal
04/02/2003EP0916044B1 Method of manufacturing a sealing element, and sealing element manufactured by that method
04/02/2003CN2542890Y Sealing ring
04/02/2003CN1407259A 活塞环 Piston
04/02/2003CN1407224A Self lubricated non-sealed piston ring for IC engine fastener driving tool
04/02/2003CN1104576C Fractured seal ring
04/02/2003CN1104575C Fitting method of sealing structure and piston ring structural body used in said sealing structure
03/2003
03/26/2003CN1405441A 活塞环 Piston
03/25/2003US6536385 Piston ring
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
03/13/2003US20030047250 Suited as a part of an internal combustion system, such as a piston; mechanical strength and seizure characteristics
03/12/2003CN2539883Y Low temp. liquid reciprocating pump sealing device
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
03/05/2003CN1102712C Sealing washer
03/04/2003US6527879 Low alloy steel containing 0.3 to 0.8% C as the principal constituent thereof is provided with the self-lubricating property brought about by sulfide inclusions existing in the steel
02/2003
02/27/2003WO2003016757A1 Piston for an internal combustion engine
02/27/2003US20030037670 Piston for internal combustion engines
02/26/2003CN2537860Y Automatic assembling machine for high speed oil less micro seal ring
02/26/2003CN1102210C Enforced seal oil ring
02/20/2003WO2003014600A1 Steel piston ring
02/13/2003WO2003011497A1 Metal ring assembly which is assembled and soldered to a support collar in order to form the annular cooling conduit of an internal combustion engine piston, the method of producing said finned metal ring and the metal ring thus obtained
02/13/2003CA2453167A1 Metal ring assembly which is assembled and soldered to a support collar in order to form the annular cooling conduit of an internal combustion engine piston, the method of producing said finned metal ring and the metal ring thus obtained
02/12/2003EP1283344A1 Piston ring
02/11/2003US6517081 Machinery seal
02/06/2003US20030024387 Piston ring improvements for a stirling engine
02/06/2003US20030024386 Resilient element for a piston head
02/05/2003CN1395653A A piston assembly with tongue-like flat seals
01/2003
01/30/2003WO2003008845A1 Machine with at least one sliding surface and method for the production of a sliding surface
01/29/2003CN2533339Y Plunger sealing device for plunger pump
01/23/2003US20030015163 Piston ring device in internal combustion engine
01/22/2003EP1277995A1 Seal ring
01/22/2003EP1277993A1 Multipiece piston ring and methods and devices for the production thereof
01/22/2003CN2532260Y Piston ring
01/22/2003CN2532259Y Conic surface connection piston ring
01/22/2003CN1392276A Heat resistant aluminium molding material
01/21/2003US6508473 Piston ring
01/16/2003WO2003004851A1 Coolable annular support for internally cooled piston rings and method for the production thereof
01/16/2003US20030011137 Seals for internal combustion engines
01/16/2003DE10111122C1 Kolbenring für eine Hubkolbenmaschine und Hubkolbenmaschine Piston ring for a reciprocating piston and reciprocating piston engine
01/15/2003EP1275888A1 Piston ring
01/09/2003US20030006562 Piston ring
01/09/2003DE20211694U1 Piston ring combination for sealing a piston against the cylinder comprises outer piston ring which has a step-shape flat portion which is symmetrical at both sides of the ring cant
01/08/2003CN1390267A Method and device for providing a layer to a piston ring
01/07/2003US6502826 Hydraulic cylinder piston seal
01/03/2003WO2003001044A1 Piston ring improvements for a stirling engine
12/2002
12/25/2002CN1387586A Method and device for producing machine components that are provided with at least one sliding surface
12/25/2002CN1097186C 密封圈 Seals
12/25/2002CN1097185C Sealing device for piston rod
12/19/2002US20020190476 Oil-scrapper piston ring and a method for producing an oil-scraper piston ring
12/18/2002EP1266156A1 Piston for internal combustion engines
12/18/2002CN2526603Y Semi-armoured sealer
12/17/2002US6494465 Seals for hydraulic assemblies
12/17/2002US6494461 Sliding member
12/12/2002DE10127172A1 Kolben für einen Verbrennungsmotor Piston for an internal combustion engine
12/12/2002DE10127020A1 Kolbenring mit einer Oxid-Nitrid-Verbundschicht Piston ring with an oxide-nitride composite layer
12/11/2002EP1264980A2 Piston for an internal combustion engine
12/05/2002WO2002097310A1 Oil ring for an internal combustion engine
12/05/2002US20020180157 Piston ring with oxide-nitride composite layer
12/05/2002US20020179389 Hydraulic piston assembly
12/04/2002EP1262694A2 Piston ring having an oxide-nitride-bonded layer
12/04/2002EP1261819A1 Lubricated seals having micropores
12/04/2002CN2523973Y Mono-directional sealed piston ring
11/2002
11/28/2002US20020175476 Piston ring, and combined structure of piston ring and ring groove of piston
11/28/2002US20020174768 Ring groove for oil ring with coil expander of piston
11/26/2002US6485026 Non-stainless steel nitrided piston ring, and method of making the same
11/26/2002US6484622 Variable oil ring tension mechanism
11/14/2002DE10118910A1 Piston ring arrangement comprises split piston rings each mounted in groove in piston in cylinder liner, with gap formed by underside of topmost piston ring and underneath support surface of groove
11/07/2002WO2002088407A1 Nickel-aluminide based wear resistant material for piston rings
11/07/2002WO2002088406A1 Intermetallic wear-resistant material for piston rings
11/06/2002EP1255041A2 Directional, low-leakage seal assembly
10/2002
10/31/2002US20020158419 Machinery seal
10/30/2002EP1253345A2 A piston and a damping means with a piston
10/30/2002EP1253210A1 Heat resistant Al die cast material
10/30/2002EP0979352B1 A two-stroke diesel engine piston
10/30/2002CN2519060Y Air-float piston mechanism
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