http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2017026042-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_24f54aefd7a75822ce9d6a7759e20068 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cdb02e647f2b42145d45ccedd9a4a640 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C16-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C16-0281 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F16J9-26 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F16J9-26 |
| filingDate | 2015-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b816c6057020ef8402160534c85ce02e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_92ae1753a2e1e7f25fb8e8652c485431 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ba4062ba7ba595193a45ca777bb09008 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cd1a96954feaf6e2056e6c1fa552b3b7 |
| publicationDate | 2017-02-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2017026042-A1 |
| titleOfInvention | Piston ring and engine |
| abstract | Provided is a piston ring on which a membranous carbon film is formed with good productivity on the external peripheral sliding surface and the top and bottom surfaces, the carbon film being optimized so as to be adapted to the performance required by the surfaces; also provided is a high-performance engine in which such a piston ring is used. In this piston ring, in which a carbon film is formed on the external peripheral sliding surface and the top and bottom surfaces, the carbon film contains a stacking of at least two types of carbon film layers having different membranous properties, and the layer thickness ratio of the two types of carbon film layers is different between the external peripheral sliding surface and the top and bottom surfaces. The carbon film is formed by stacking a first carbon film layer formed on a piston ring body side and a second carbon film layer formed on a front surface side, the thickness of the second carbon film layer in the top and bottom surfaces is less than the thickness of the second carbon film layer in the external peripheral sliding surface, and the ratio of the thickness of the second carbon film layer to the thickness of the first carbon film layer is greater in the external peripheral sliding surface than in the top and bottom surfaces. |
| priorityDate | 2015-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.