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)
05/2000
05/17/2000CN2378578Y Split type mechanical seal
05/16/2000US6062569 Fiber reinforced ceramic matrix composite piston ring
05/11/2000DE19851424A1 Piston ring used for I.C. engines consists of a multiphase material in the region of the ring outer surface containing finely divided hard material particles in a matrix
05/09/2000US6060182 Hard coating material, sliding member covered with hard coating material and manufacturing method thereof
04/2000
04/26/2000EP0995059A1 Piston assembly for stirling engine
04/25/2000US6054225 Piston ring with a nitrided layer and composite chromium plating film over the nitrided layer in outer circumferential surface; plating film has network of cracks with spherical hard particles of given size and dispersion ratio in cracks
04/18/2000US6050235 Cylinder-piston assembly
04/12/2000CN1250505A A Piston for a two-stroke crosshead engine of the diesel type
04/11/2000US6048625 Wear resisting steel, sliding member for cylinder in internal combustion engine, and ring spring
04/11/2000CA2190421C A piston and cylinder assembly for minimizing water blow-by in an air compressor
04/04/2000US6045135 Sealing ring disk
03/2000
03/29/2000CN2371396Y Piston ring for engine
03/29/2000CN2371395Y 活塞环 Piston
03/23/2000DE19840918C1 Ölabstreifkolbenring Piston oil control ring
03/22/2000CN2370224Y Spiral piston ring
03/21/2000US6039321 Piston ring device for use in a combustion engine of a vehicle
03/15/2000EP0985861A2 Oil-scraping piston ring
03/02/2000DE19940065A1 Slide element, e.g. an i. c. engine piston ring, has a slide surface with an ion plated chromium nitride coating containing boron for increased abrasion and wear resistance
03/02/2000DE19940064A1 Slide element, e.g. an i. c. engine piston ring, has a slide surface with an ion plated chromium nitride coating containing boron for increased detachment resistance
03/02/2000DE19940022A1 Piston ring, especially the second pressure ring of a direct injection diesel engine, consists of a surface nitrided steel of relatively low chromium content
02/2000
02/16/2000EP0979366A1 Fractured seal ring
02/16/2000EP0979352A1 A piston for a two-stroke crosshead engine of the diesel type
02/03/2000WO2000005558A1 Test assembly for fluid tight integrity of pipeline joint
02/03/2000CA2337934A1 Test assembly for fluid tight integrity of pipeline joint
02/02/2000EP0977017A1 Wear monitor
02/02/2000EP0975905A1 Internal combustion piston engine
01/2000
01/12/2000CN2358276Y Piston ring
01/11/2000US6013380 Composite chromium plating film and sliding member covered thereof
01/05/2000EP0800627A4 Piston assembly with piston ring support and sealing member
12/1999
12/30/1999DE19808481C1 Ölabstreifkolbenring Piston oil control ring
12/23/1999DE19927998A1 Guide element, particularly a piston ring for internal combustion engines
12/23/1999DE19827496A1 Piston ring for piston-type working machine
12/22/1999CN1239200A Oil ring with forced sealing
12/16/1999DE19833827C1 Piston for reciprocating piston engine esp. for high capacity engines
12/16/1999DE19833825C1 Piston for internal combustion engine
12/16/1999DE19825860A1 Piston ring for piston engine, with diamond-like coating
12/07/1999US5996545 Internal combustion engine with a horizontal cylinder
12/02/1999DE19831953A1 Lubricating oil-free vehicle internal combustion engine / electric generator drive system
12/01/1999CN1236868A Fully-sealed piston ring
11/1999
11/30/1999US5992015 Process for forming composite piston
11/24/1999CN1046796C Compression ring for an internal combustion engine
11/23/1999US5988649 Fractured seal ring
11/18/1999WO1999058839A1 Piston-cylinder arrangement
11/10/1999CN1234479A Fitting method of sealing structure and piston ring structural body used in said sealing structure
11/09/1999US5979298 Cooling gallery for pistons
11/09/1999US5979071 Piston ring gap measuring device for a vehicle
11/04/1999WO1999056042A1 Split sealing ring characterized by its material serving for any piston system
11/02/1999US5974910 Accumulator piston
11/02/1999US5974871 Tension measuring apparatus and method for piston ring
10/1999
10/27/1999CN2345779Y Sealed oilring
10/27/1999CN2345778Y 密封型活塞环 Sealed Piston
10/26/1999US5972128 Cast iron and piston ring
10/21/1999DE19815989A1 Piston-cylinder assembly e.g. for an ic engine
10/20/1999EP0950840A2 Oil scraping ring
10/20/1999CN2344559Y Piston oil ring groove tension spring device for gasoline and diesel engine
10/14/1999DE19911533A1 Piston ring especially for use with aluminum cylinder e.g. engine cylinder
10/14/1999DE19818869C1 Piston for motor vehicle internal combustion engine
10/13/1999EP0949436A2 Piston ring for combustion engine
10/12/1999US5964467 Oil control ring of two piece type for internal combustion engine
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
09/23/1999DE19817269C1 Oil scraper ring for internal combustion engine
09/23/1999DE19809659C1 Verfahren zur Herstellung von Kolbenringen A process for the production of piston rings
09/16/1999DE19755425C2 Ölabstreifkolbenring Piston oil control ring
09/15/1999EP0942204A1 Piston sealing ring assembly
09/15/1999CN1228514A Sealed cylinder
09/09/1999DE19815484C1 Piston ring for internal combustion engines
09/08/1999EP0940607A2 Oil scraping ring
09/08/1999EP0940216A2 Manufacturing method for piston rings
09/02/1999DE19808483A1 Oil stripper piston ring for IC engines
09/01/1999EP0939254A2 A thin 3-piece oil ring
09/01/1999EP0939253A2 Oil scraping 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
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
08/25/1999EP0937216A1 Packing seal
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
08/11/1999EP0935015A1 Method for producing whisker-forming alumina and alumina fibers and composite piston of alumina fibers
08/10/1999US5934685 Step lock piston ring insert
08/10/1999US5934680 Split resin seal ring with chamfered end connection structures
08/04/1999EP0933566A1 Sealing for dry-running piston compressor
08/04/1999CN1225160A 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
07/1999
07/29/1999WO1999037941A1 Internal combustion engine piston
07/22/1999WO1999036302A1 Piston ring with interlocking opposing ends
07/13/1999US5921553 Sealing ring assembly for a single sealing ring piston
07/07/1999EP0927841A1 Piston ring, particularly for an internal combustion engine
07/07/1999EP0927840A1 Oil scraping ring for internal combustion engine
07/07/1999EP0927839A2 Combined oil ring and manufacturing method thereof
07/07/1999CN1043970C Piston arrangement for fercussion tool
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
06/17/1999DE19755425A1 Oil scraper ring for piston of internal combustion engine
05/1999
05/26/1999CN2320845Y Plunger sealing device for power end of fracturing pump
05/20/1999WO1999024741A1 Improved accumulator piston
05/19/1999EP0916044A1 Method of manufacturing a sealing element, and sealing element manufactured by that method
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