| Patents for F02F 5 - Piston rings, e.g. associated with piston crown (2,184) |
|---|
| 11/07/2007 | CN101069007A Piston for internal-combustion engine and combination of piston and piston ring for internal-combustion engine |
| 11/01/2007 | WO2007123164A1 Piston ring material for internal combustion engine |
| 10/24/2007 | CN100344890C Sliding member and production process thereof |
| 10/17/2007 | CN200961533Y Piston ring of diesel engine |
| 10/17/2007 | CN200961532Y Diamond like carbon film steel oil ring |
| 10/17/2007 | CN200961531Y Piston for IC engine |
| 10/17/2007 | CN100343075C Marking method and marked molding |
| 10/11/2007 | DE112005002856T5 Kolben für Verbrennungsmotor und Kombination aus Kolben und Kolbenring für einen Verbrennungsmotor Pistons for internal combustion engine and combination of piston and piston ring for an internal combustion engine |
| 10/11/2007 | DE102007016827A1 Piston e.g. for internal combustion engine with two annular groves, has ring, box with several piston ring grooves on upper part and under part |
| 10/11/2007 | DE102006017990A1 Treatment method for cylinder running surfaces in engine block production comprises applying lubricant to tool edge which contains molybdenum, tin, lithium, tungsten, sulfur or carbon or mixture of these |
| 10/10/2007 | CN200958429Y Embedded chromium-plating immersed ceramic piston ring |
| 09/26/2007 | EP1837561A1 Oil ring |
| 09/26/2007 | CN101042191A Sealed oil ring |
| 09/19/2007 | CN101037976A Enclosed piston ring and matching assembly method thereof |
| 09/19/2007 | CN101037975A Combined piston ring with novel locating device and manufacturing method thereof |
| 09/13/2007 | US20070210524 Piston rings |
| 09/12/2007 | CN100337020C Manufacutring technology of friction pair four composite unit without grinding |
| 09/11/2007 | US7267344 Piston ring with a PVD coating |
| 09/08/2007 | CA2640732A1 Internal combustion engine |
| 09/07/2007 | WO2007099968A1 Piston ring |
| 09/07/2007 | WO2007099846A1 Sliding member |
| 09/05/2007 | CN101029611A Two-way sealed piston ring |
| 09/05/2007 | CN101029610A Assembled piston gas ring |
| 09/05/2007 | CN101029609A Oblique-connected sealer gas-ring combination of piston ring |
| 09/05/2007 | CN101029608A Leakage-proof air-flue gaseous ring |
| 08/30/2007 | DE102006058081A1 2-Takt-Verbrennungskraftmaschine mit Ölabstreifring 2-stroke internal combustion engine with oil ring |
| 08/30/2007 | DE102006009022A1 Piston ring for internal combustion engine, has inner surface turned towards groove, where height of piston ring at outer surface is larger than height of piston ring at inner surface, and two inner angles are formed at side surfaces |
| 08/29/2007 | CN200940521Y Single groove double ring inner and outer placket piston gas ring |
| 08/22/2007 | CN2937675Y Double-sheet combined oi wiper, gas package piston ring |
| 08/16/2007 | US20070187002 Piston ring having improved scuffing, cracking and fatigue resistances, and its production method, as well as combination of piston ring and cylinder block |
| 08/15/2007 | CN2934612Y Oil-storage type high-pressure piston-ring |
| 08/14/2007 | US7255083 Sliding structure for automotive engine |
| 08/09/2007 | WO2007088847A1 Three-piece oil ring and combination of three-piece oil ring and piston |
| 08/08/2007 | CN2931818Y Lap joint sealing internal combustion engine piston ring |
| 08/08/2007 | CN1330873C Piston ring |
| 08/07/2007 | US7252292 Oil ring for an internal combustion engine |
| 08/02/2007 | WO2007086227A1 Low-friction slide member, production apparatus therefor and process for producing the same |
| 08/02/2007 | US20070176371 Piston ring for an internal combustion engine |
| 08/01/2007 | CN1329678C Steel piston ring |
| 07/17/2007 | US7243596 Spacer expander |
| 07/12/2007 | DE102005061061A1 Piston ring for internal combustion engine, has U-shaped cross section arranged in groove of piston, and flange with rectangular cross section, whose radial outer surface is relocated against radial outer surface of piston |
| 07/11/2007 | CN1997844A Oil ring for internal combustion engine |
| 07/11/2007 | CN1995723A Piston ring for IC engine and method for manufacturing same |
| 07/05/2007 | WO2007073684A1 Sealing oil ring |
| 07/05/2007 | DE102006003480B3 Piston ring for diesel engine, has lower flank provided with nitride layer, where trapezoidal area of upper flank is formed nitration layer-free and defined depredation is produced in operating condition |
| 07/04/2007 | CN2918900Y Fibulae type sealing oil ring |
| 07/04/2007 | CN1991218A Square and T-shape piston steam-fending column |
| 06/26/2007 | US7234704 Wiping and/or sealing element as well as process for sealing a piston and clamping and/or support element |
| 06/20/2007 | EP1409896B1 Oil-scraper piston ring and a method for producing an oil-scraper piston ring |
| 06/20/2007 | CN1985083A Piston ring, piston, cylinder and piston pin having amorphous and hard carbon film |
| 06/13/2007 | CN2911214Y Piston ring having sealing wearness permissible capacity |
| 06/13/2007 | CN2911213Y Fully chrome-plated piston ring |
| 06/13/2007 | CN1978955A Sealing piston-ring |
| 06/07/2007 | WO2007035468A3 Composite sliding surfaces for sliding members |
| 05/31/2007 | DE102005063123B3 Piston ring for sealing chamber in cylinder has running-in layer containing hydrogen and nanocrystalline carbide phases |
| 05/30/2007 | CN2906092Y 密封型活塞环 Sealed Piston |
| 05/18/2007 | WO2005079456A3 Cover seals with latching locking features |
| 05/16/2007 | EP1784593A2 Cover seals with latching locking features |
| 05/16/2007 | CN2900827Y Hasp piston ring of step angle in round arc shape |
| 05/09/2007 | EP1783349A1 Piston ring, piston, cylinder and piston pin having amorphous and hard carbon film |
| 05/03/2007 | DE102005051223A1 Oil scraper ring, has number of oil passage openings provided between runways and viewed in circumferential direction, where cross-section of openings increases radially from outer peripheral surface to inner peripheral surface |
| 05/02/2007 | CN2895900Y Piston ring |
| 05/01/2007 | US7210398 Cover seals with latching locking features |
| 04/24/2007 | US7207571 Steel piston ring |
| 04/19/2007 | DE102005047037A1 Motorische Gleitpaarung aus einer Aluminiumbasislegierung Motorized sliding contact surface of an aluminum-based alloy |
| 04/18/2007 | EP1774053A1 Method for producing a coat on a piston ring and piston ring |
| 04/11/2007 | CN2888100Y Diamond film engine cylinder liner and piston ring |
| 04/04/2007 | CN1308587C Combined oil ring |
| 03/29/2007 | WO2005111403A3 Wedge seal |
| 03/28/2007 | EP1767834A1 Piston ring for internal combustion engine |
| 03/28/2007 | CN2883805Y Double wedge positioned combined sealing piston ring |
| 03/21/2007 | CN1932270A Piston-ring packing |
| 03/21/2007 | CN1932269A Trapezoidal rare earth ceramic alloy piston ring |
| 03/21/2007 | CN1306190C Two piece oil control ring with nitrided surface layers |
| 03/08/2007 | DE102005041408A1 Verfahren zur Herstellung eines Kolbenrings für Verbrennungsmotoren sowie einen derartigen Kolbenring A process for producing a piston ring for internal combustion engines and such a piston ring |
| 02/28/2007 | CN2874040Y Double overlapped internal combustion engine sealed piston ring |
| 02/28/2007 | CN1920286A Component, particularly piston ring |
| 02/21/2007 | CN1916448A Piston ring with no end gap, and piston of containning the piston ring |
| 02/14/2007 | CN1912183A Work pieces having protection against erosion of high temperature, reciprocating piston internal combustion engine, turbine or incineration device having the same |
| 02/14/2007 | CN1912163A High temperature erosion endurable work piece, reciprocating piston internal combustion engine having the same and use of alloy for protection against erosion of high temperature |
| 02/08/2007 | DE102005037205A1 Zweiteiliger Ölabstreifring für Verbrennungsmotoren Two-piece oil ring for internal combustion engines |
| 02/08/2007 | DE102005037203A1 Mehrteiliger Ölabstreifring für Verbrennungsmotoren Multi-part oil scraper ring for internal combustion engines |
| 02/07/2007 | CN1910360A Wire material for coil expander and coil expander |
| 01/31/2007 | CN1906461A Method and device for detecting direction of member having outer periphery formed in vertically asymmetrical shape |
| 01/31/2007 | CN1297740C Full-sealed piston ring for reducing exhaustion pollution of car |
| 01/18/2007 | DE102005027233B4 Abgas-Steuervorrichtung für einen Verbrennungsmotor Exhaust gas control apparatus for an internal combustion engine |
| 01/18/2007 | DE102005022469A1 Cylinder crankcase for internal combustion (IC) engine, is monolithically molded from hard material consisting of low-eutectic aluminum alloy added with silicon particles |
| 01/17/2007 | CN2858978Y Motorcycle used GS200 engine |
| 01/17/2007 | CN1896482A Automatic peripheral-elastic sealed piston ring |
| 01/10/2007 | CN1294370C Reciprocating piston engine |
| 01/04/2007 | DE102005024140B4 Dichtpaket und Hubkolben mit einem Dichtpaket Packing seal and reciprocating with a seal pack |
| 01/03/2007 | CN2854104Y Automatic expansion piston ring |
| 01/03/2007 | CN1888408A Non-leakaging notch full-sealing piston ring |
| 01/03/2007 | CN1293297C Double layer O-shaped interlocking combined gas ring |
| 12/13/2006 | CN2846768Y Improved CG125 engine for motorcycle |
| 12/13/2006 | CN1289808C Piston ring |
| 12/06/2006 | CN2844461Y Gapless piston air ring |
| 12/05/2006 | US7144017 Piston ring having wear resistant composition |
| 11/30/2006 | DE102005024140A1 Dichtpaket und Hubkolben mit einem Dichtpaket Packing seal and reciprocating with a seal pack |
| 11/30/2006 | DE102005023627A1 Steel piston ring has chromium ceramic anti-wear coating with micro-cracks around its peripheral edge, top and bottom faces of ring having nitride anti-wear coatings and forming sharp corners where they meet peripheral edge |