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)
03/2004
03/11/2004DE10339711A1 Kolben mit Kolbenring Piston with piston ring
03/10/2004CN2606221Y Simple sealed piston rings
03/04/2004WO2004018728A1 Process of thermally spraying coatings
03/04/2004US20040040631 Nitriding surface of martensite stainless steels
03/04/2004US20040040436 Combination of piston and piston ring
03/03/2004CN1479028A Composite type flexible sealing piston ring
03/02/2004US6698763 Piston ring
02/2004
02/26/2004US20040037969 Thermally sprayed coatings
02/26/2004DE10234539A1 Piston production holes cooling channel part prior to casting links hole to hold part to vent channel part when in mold to thus bleed off injurious gases.
02/25/2004EP1390648A1 Oil ring for an internal combustion engine
02/25/2004CN2604574Y Single-ring sealed piston ring
02/19/2004WO2003044354A9 A combined gas ring and the assembly of piston ring and piston
02/12/2004DE10234528A1 Piston ring combination to seal piston in relation to cylinder has two-sided symmetrical and step-form flat on ring gap of outer ring and in which engages L-shaped preformed component on inner piston ring
02/12/2004DE10207078B4 Kolbenring mit einer PVD-Beschichtung Piston ring with a PVD coating
02/11/2004CN2603246Y Piston ring
02/05/2004WO2004011827A1 Seal ring
02/05/2004WO2004011793A1 Piston ring
02/05/2004US20040021270 Two piece oil control ring with nitrided surface layers
02/04/2004CN1473250A 钢制活塞环 Steel piston ring
02/04/2004CN1473249A Two piece oil control ring with nitrided surface layers
02/03/2004US6685193 Self lubricating, non-sealing piston ring for an internal combustion fastener driving tool
01/2004
01/27/2004US6682078 Ring groove for oil ring with coil expander of piston
01/22/2004US20040012153 Steel piston ring
01/14/2004EP1379705A1 Intermetallic wear-resistant material for piston rings
01/13/2004US6675762 Piston assembly having counterflow thwarting construction for use in an internal combustion engine
01/08/2004WO2004003408A1 Piston segment for internal combustion and compression ignition engine, cylinder and engine comprising same
01/07/2004EP1377766A1 Side rail and combined oil control ring incorporated with the side rails for reduction of oil consumption
01/07/2004CN2597765Y Piston ring
01/02/2004EP1375695A1 Wear-resistant sliding member
01/02/2004EP1373587A1 Nickel-aluminide based wear resistant material for piston rings
12/2003
12/31/2003WO2004001215A1 Reciprocating engine
12/31/2003CA2487862A1 Reciprocating engine
12/24/2003DE19942241C2 Hubkolbenmaschine Reciprocating engine
12/17/2003CN2592967Y Integral piston ring
12/17/2003CN2592966Y Oil-gas combined steel-tape piston ring
12/17/2003CN1131372C Combined piston with tongue-like flat seals
12/10/2003EP1369626A2 Sealing element
12/10/2003CN2591252Y Miter doubling energy-saving environment protection piston ring
12/04/2003WO2003100301A1 Seal ring
12/03/2003EP1366314A1 Reciprocating engine
12/03/2003CN2589760Y Composite piston ring
12/03/2003CN1129724C Installing structure of piston sealing assembly
12/02/2003US6655697 Piston oil ring having land flanked by concave sidewalls
11/2003
11/27/2003WO2003098079A1 Method for producing anti-wear coatings on steel piston rings, and steel piston ring comprising one such anti-wear coating
11/27/2003WO2003008845B1 Machine with at least one sliding surface and method for the production of a sliding surface
11/26/2003CN1458983A Piston ring excellent in resistance to scuffing, cracking and fatigue and method for producing same, and combination of piston ring and cylinder block
11/26/2003CN1128926C 活塞环 Piston
11/25/2003US6651988 Compact actuator with hydraulic seal
11/25/2003US6651606 Piston assembly having counterflow thwarting construction for use in an internal combustion engine
11/05/2003EP1359351A1 Piston ring and method of producing the same
11/05/2003CN2584955Y Sealing structure for piston and piston rod of pile and jack
11/05/2003CN2584954Y Hydraulic sealing ring for piston and piston rod
10/2003
10/30/2003WO2002052159A3 Compact actuator with hydraulic seal
10/29/2003EP1356125A1 Method for pre-treating a ring support prior to the alfin process
10/23/2003US20030196546 Piston apparatus composed of metal piston ring without kerf
10/15/2003CN1448627A 活塞环 Piston
10/14/2003US6631908 Compression piston ring
10/14/2003US6631907 Nitride-plated piston ring for internal combustion engines
10/08/2003EP1350045A1 Method for producing a ring support with a sheet metal cooling channel welded thereon
10/02/2003US20030184023 Piston ring
10/02/2003US20030184017 Seal assembly manufacturing methods and seal assemblies manufactured thereby
09/2003
09/25/2003WO2003078873A1 Seal ring
09/25/2003US20030180565 Thermally applied coating for piston rings, consisting of mechanically alloyed powders
09/25/2003US20030178784 Combustion gas seal for injector
09/10/2003EP1341946A1 Wear protection layer for piston rings, containing wolfram carbide and chromium carbide
09/10/2003EP1173624B1 Method and apparatus for hardening ring-shaped grooves by means of laser beams
09/09/2003US6615788 Piston assembly for an internal combustion engine
09/09/2003CA2309651C Improved accumulator piston
09/04/2003WO2003072845A1 Thermal spraying of a piston ring
09/04/2003WO2003072844A1 Thermal spraying of a machine part
09/03/2003CN2570544Y Gas-liquid cylinder sealing arrangement
08/2003
08/28/2003WO2003071168A1 Piston rings
08/28/2003WO2003070999A1 Piston ring comprising a pvd coating
08/27/2003CN1119540C Sealing ring
08/21/2003US20030154947 Piston assembly having counterflow thwarting construction for use in an internal combustion engine
08/21/2003DE10205235C1 Piston ring for IC engine machined in un-stressed state for providing contoured internal peripheral surface providing defined pressure distribution in stressed state
08/20/2003EP1141593B1 Piston ring for the piston of an internal combustion engine
08/20/2003CN1118641C Comprssing ring with mechanical connection and method for enhancing mechanical connection
08/14/2003US20030150419 Piston having ceramic-coated ring groove
08/06/2003CN1117230C Piston ring for piston in I.C. engine
07/2003
07/31/2003WO2003062680A1 Spraying piston ring
07/30/2003EP0910760B1 Internal combustion piston engine
07/30/2003EP0832383B1 Sealing arrangement
07/30/2003CN1116510C Piston-type machinery
07/29/2003US6600130 Method and device for providing a layer to a piston ring
07/22/2003US6596410 Chrome-plated sliding member and manufacturing method thereof
07/17/2003WO2003058096A1 Side rail and combined oil control ring incorporated with the side rails for reduction of oil consumption
07/15/2003US6592690 Method for hardening ring-shaped grooves by means of laser beams
07/15/2003US6591624 Air conditioning system for an automobile
07/10/2003WO2003056176A1 Self-lubricating plastics material for sealing elements
07/10/2003WO2003021137A3 Cooled ring carrier for a piston
07/10/2003US20030127802 Compression ring sealing device with end gap control and a method of manufacturing same
07/09/2003EP1326022A1 Combustion gas seal for injector
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
07/09/2003EP1147311B1 Air conditioning system for an automobile
07/09/2003CN2559837Y Cross open piston ring
07/09/2003CN1428526A Openingless piston ring
07/03/2003WO2003054371A1 Piston ring carrier with a cooling channel
07/02/2003EP1322794A2 Thermally applied coating for piston rings, consisting of mechanically alloyed powders
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