| Patents for F02F 5 - Piston rings, e.g. associated with piston crown (2,184) |
|---|
| 03/18/2009 | CN101389886A Sliding member |
| 03/18/2009 | CN101387239A Wedge type Overlap joint piston ring processing technique |
| 03/18/2009 | CN100470039C Method for manufacturing wearable side for ladder-shaped ring for internal combustion engine |
| 03/17/2009 | US7505146 Method and device for detecting direction of member having outer periphery formed in vertically asymmetrical shape |
| 03/12/2009 | WO2009033115A2 High efficiency piston ring |
| 03/11/2009 | CN201206507Y Multi-working surface oil ring |
| 03/11/2009 | CN201206503Y Novel piston |
| 03/11/2009 | CN101384841A Piston ring |
| 03/04/2009 | EP1359351B1 Piston ring and method of producing the same |
| 03/04/2009 | CN101379324A Three-piece oil ring and combination of three-piece oil ring and piston |
| 03/04/2009 | CN100465320C A cast iron material with nitrogen austenite used in beset rings of pistons |
| 02/26/2009 | US20090054277 Sliding member and production process thereof |
| 02/26/2009 | US20090051123 Piston ring |
| 02/26/2009 | US20090051117 Sealing rings |
| 02/26/2009 | DE102008035148A1 Kompressions-Kolbenring Compression piston ring |
| 02/25/2009 | CN201198793Y Automobile, motorcycle and four-stroke petrol engine pistons |
| 02/25/2009 | CN101372923A Sealing rings |
| 02/24/2009 | US7493882 Combination of a cylinder liner and a piston ring |
| 02/11/2009 | CN201193698Y Piston ring stopping in horizontal and vertical direction |
| 01/29/2009 | US20090026711 Compression piston ring |
| 01/28/2009 | EP1557594B1 Oil ring |
| 01/28/2009 | CN201187575Y Spiral lining reed oil ring |
| 01/22/2009 | US20090020006 Combination of a piston and a piston ring |
| 01/22/2009 | DE102007034418A1 Split piston ring for hot gas engine, has two partitioned ends, which are oppositively lying, and split piston ring is manufactured from boron nitride |
| 01/21/2009 | CN201184243Y Energy-saving long-service life type piston ring |
| 01/15/2009 | DE112007000470T5 Gleitelement Slider |
| 01/14/2009 | CN201180590Y High abrasion-proof piston ring |
| 01/14/2009 | CN101344048A Laser surface modelling engine piston ring and preparation method thereof |
| 01/07/2009 | EP2011892A1 Piston ring material for internal combustion engine |
| 01/07/2009 | CN101338707A Piston, piston ring assembly for internal combustion engine |
| 01/07/2009 | CN100449135C Processing for piston ring embedded chrome plating impregnated porcelain |
| 01/02/2009 | DE102006009022B4 Kolben eines Verbrennungsmotors Piston of an internal combustion engine |
| 12/31/2008 | CN100447396C Oblique-connected sealer gas-ring combination of piston ring |
| 12/24/2008 | DE102007027815A1 Ölabstreifring Oil ring |
| 12/24/2008 | DE102007027223A1 Kolbenring für den Kolben eines Verbrennungsmotors Piston ring for the pistons of an internal combustion engine |
| 12/24/2008 | CN201170312Y Piston ring seal sheet |
| 12/24/2008 | CN201170139Y Novel aluminium piston durable inlaid ring |
| 12/24/2008 | CN100445609C Multipart oil wiping ring for pistons of internal combustion engines |
| 12/24/2008 | CN100445544C Piston with pressure-reducing piston ring |
| 12/23/2008 | CA2395915C Internal combustion engines |
| 12/18/2008 | WO2008153041A1 Wire rod for i-type oil ring, and its manufacturing method |
| 12/18/2008 | DE102007027245A1 Kolbenring Piston ring |
| 12/17/2008 | CN201165913Y Double-gas ring piston |
| 12/11/2008 | DE112007000435T5 Kolbenring Piston ring |
| 12/10/2008 | CN201162585Y Abrasion-proof piston ring |
| 12/09/2008 | CA2354904C Piston ring locator |
| 12/03/2008 | CN201159281Y Hexagonal piston ring positioning pin |
| 12/03/2008 | CN100439771C Spacer expander |
| 12/02/2008 | US7458585 Sliding member and production process thereof |
| 11/26/2008 | CN201155565Y Metal piston-ring |
| 11/26/2008 | CN201155379Y Gas and oil ring |
| 11/13/2008 | US20080276919 Piston, A Ring and a Piston Assembly for a Two Cycle Engine |
| 11/12/2008 | EP1990564A1 Sliding member and production process thereof |
| 11/12/2008 | EP1375695B1 Wear-resistant sliding member |
| 11/12/2008 | EP1224341B1 Process for electrolytic coating of a substrate |
| 11/12/2008 | CN201148922Y Seal piston of internal combustion engine |
| 11/12/2008 | CN201148921Y Second gas ring of diesel |
| 11/12/2008 | CN201148920Y Diesel oil ring |
| 11/12/2008 | CN201148919Y First gas ring of diesel |
| 11/12/2008 | CN201148918Y Second gas ring of diesel |
| 11/12/2008 | CN201148917Y Diesel oil ring |
| 11/12/2008 | CN201148916Y First gas ring of diesel |
| 11/12/2008 | CN101302961A Natural gas engine |
| 11/05/2008 | CN201144738Y Piston and piston ring assembly |
| 11/05/2008 | CN201144737Y Ceramet ceramet membrane piston ring for internal combustion locomotive |
| 10/29/2008 | EP1984614A2 Internal combustion engine |
| 10/28/2008 | US7441402 Exhaust gas control apparatus and exhaust gas control method for internal combustion engine |
| 10/22/2008 | CN100427815C Oil scraper ring for pistons of internal combustion engines |
| 10/16/2008 | US20080252902 Method and Device for Detecting Direction of Member Having Outer Periphery Formed in Vertically Asymmetrical Shape |
| 10/08/2008 | EP1978286A1 Low-friction slide member, production apparatus therefor and process for producing the same |
| 10/08/2008 | EP1379705B1 Intermetallic wear-resistant material for piston rings |
| 10/07/2008 | US7431305 Oil scraper ring ring groove arrangement for pistons of internal combustion engines |
| 10/01/2008 | CN201125798Y Point staggered type biplate self-closing complementary energy-saving piston ring |
| 10/01/2008 | CN101275674A Sealing oil ring |
| 09/24/2008 | CN101270700A High abrasion-proof steel piston ring and its production technique |
| 09/24/2008 | CN100420843C Spraying piston ring |
| 09/17/2008 | CN100419242C Piston ring for IC engine and method for manufacturing same |
| 08/28/2008 | DE102007007963A1 Kolbenring Piston ring |
| 08/28/2008 | DE102007007960A1 Kolbenring Piston ring |
| 08/27/2008 | CN201106677Y Two-piece assembled piston ring |
| 08/27/2008 | CN201106501Y Motorcycle engine piston |
| 08/21/2008 | DE102007007965A1 Kolbenring Piston ring |
| 08/21/2008 | DE102007007961A1 Kolbenring Piston ring |
| 08/20/2008 | CN201103490Y Energy-saving piston ring of 6160 type diesel engine |
| 08/20/2008 | CN201103489Y Cooling gas ring |
| 08/20/2008 | CN201103488Y Piston for IC engine |
| 08/13/2008 | CN101240755A Aluminum piston durable inlaid ring |
| 08/13/2008 | CN100410569C Oil ring |
| 08/06/2008 | CN201096029Y Superposed closed type piston ring |
| 08/06/2008 | CN100408838C 活塞环 Piston Ring |
| 07/30/2008 | CN201093062Y Piston ring |
| 07/30/2008 | CN201092898Y Air leakage protection assembled piston ring |
| 07/17/2008 | US20080169612 Oil Ring for Internal Combustion Engine |
| 07/17/2008 | DE3903722C5 Kolben-Kolbenring-Anordnung für einen Verbrennungsmotor Piston and piston ring assembly for an internal combustion engine |
| 07/16/2008 | CN101220769A Organization aeration demixing mixed two-stroke rotary cylinder engine |
| 07/10/2008 | DE10207148B4 Kolbenring Piston ring |
| 07/02/2008 | CN201080862Y Engine double-piston ring piston subassembly |
| 07/02/2008 | CN101210318A Method for coating silicon nitride film layer on piston ring surface |
| 06/26/2008 | US20080150237 Insert for a cylinder sleeve or a cylinder of an internal combustion engine |
| 06/25/2008 | CN101205849A Piston with oil collector ring |