http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1032410-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_79978b18478139e2525bf627e104a6d3 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01D11-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F16J15-342 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F16J15-3404 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F16J15-006 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F16J15-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F16J15-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F01D11-04 |
| filingDate | 1961-04-24^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9f254fc48a18ff712f5d62237f2e7f0d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e27e0a4d517711e99188a4064cccf98b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5a3325262b40da3057afcef833f1c067 |
| publicationDate | 1966-06-08^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1032410-A |
| titleOfInvention | Improvements in or relating to shaft seals |
| abstract | 1,032,410. Shaft seals. RICHARDSONS, WESTGARTH & CO. Ltd. July 24, 1962 [April 24, 1961], No. 14762/61. Heading F2B. Sealing means for the rotary shaft 1 where it extends through the casing wall 2 of a carbondioxide compressor comprises a wind-back screw seal 9 communicating at one end with a first chamber 7 which adjoins a shaft bearing 5 and houses an axially-displaceable non-rotatable ring 11 urged by springs 12 towards a shoulder 10 on the shaft and communicating at the other end with a second chamber 22 connected by a drainage duet 26 to a drain container 27 maintained at superatmospheric pressure, sealing oil, being supplied to the first chamber 7 at a selected pressure above the pressure of the carbondioxide gas in the space 4 within the casing and sealing oil leaking into the second chamber 22 being drained therefrom into the container 27. The sealing oil, some of which acts as a lubricant for the bearing 5, is supplied to the chamber 7 via a passage 6 and has its pressure controlled by a device 8. The ring 11 is sealed to the chamber 7 by a piston-ring 14. The seal 9 comprises multi-start helical grooves in the casing 2 opposing a cylindrical surface on the shoulder 10. The container 27 is vented via a throttling restriction 30 and the oil level in the container is controlled either by a discharge restriction 28 or by a valve 29. When the shaft is at rest or rotating at a low speed, the ring 11 is urged by the springs 12 into sealing contact with the shoulder 10. In operation under normal running conditions, a gap 15 is formed between the faces 13 and 16 by the oil pressure and an oil/gas interface occurs at an axial position along the seal 9. Any oil leaking past the seal 9 is thrown outwardly by a baffle 24 into the chamber 22 and drained into the container 27. A labyrinth seal 25 is provided between the space 4 and the chamber 22. In a modification, Fig. 2 (not shown), the sealing oil is supplied to the chamber 7 through passages in the ring 11. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114856724-A |
| priorityDate | 1961-04-24^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID457698762 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID280 |
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