http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2247369-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_230c5c9d495e3bf392ef2b8098e51921 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F05C2201-0433 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F05C2201-021 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F05C2251-042 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F05C2203-0882 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F05C2253-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F05C2201-0448 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-83 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F02F7-0085 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-522 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-83 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F02F7-00 |
| filingDate | 1997-03-06^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_734e7ed0ce5f54124b1b29e414a4220a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bb3aa4d80ebe21074a7649881591ed79 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f0e772d5c26e4b8f7506e61b666d7d3a |
| publicationDate | 1997-09-12^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2247369-A1 |
| titleOfInvention | Chopped-fiber composite piston architectures |
| abstract | A three-dimensional piston molding is fabricated from a mixture of chopped, carbon tow filaments of variable length, which are prepregged with carbonaceous organic resins and/or pitches and molded by conventional molding processes into near net shape, to form a carbon-fiber reinforced organic-matrix composite part. Continuous reinforcement in the form of carbon-carbon composite tapes or pieces of fabric can be also laid in the mold before or during the charging of the mold with the chopped-fiber mixture, to enhance the strength in the crown (21) and wrist-pin areas (23). The modled chopped-fiber reinforced organic-matrix composite parts are then pyrolyzed in an inert atmosphere, to convert the organic matrix materials to carbon. These pyrolyzed parts are then densified by reimpregnation with resins or pitches, which are subsequently carbonized. Densification is also accomplished by direct infiltration with carbon by vapor deposition processes. Once the desired density has been achieved, the piston molds are machined to final piston dimensions, and piston ring grooves are added. To prevent oxidation and/or to seal the piston surface or near surface, the chopped-fiber piston (20) is coated with ceramic and/or metallic sealants; and/or coated with a catalyst. |
| priorityDate | 1996-03-06^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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