http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S6027800-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e94e5216c30d6a9b8c591540e6681faa |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F04B49-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F03G4-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F04D7-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F03G7-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F04D13-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F03G4-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F04D15-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F04B47-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F04B49-02 |
| filingDate | 1983-07-25^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2a6951bcf97a9f61a6c89c77bb0cbf39 |
| publicationDate | 1985-02-12^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S6027800-A |
| titleOfInvention | Method of starting down hole pump |
| abstract | PURPOSE: To prevent an excessive flow rate from occurring at the starting of a deep well pump, by controlling the rotational frequency of a down hole pump based on a time function when the inside of a discharging pipe of the down hole pump becomes a gaseous phase. n CONSTITUTION: At the starting of a down hole pump 5 that is used for pump up the well water in a deep well, it is made lower than the case where the lift at the prescribed rotational frequency N o of the down hole pump 5 is zero. The speed of the motor of the down hole pump is variable, and the motor is started at a rotational frequency lower than the prescribed rotational frequency, and thereafter it will reach the rotational frequency of the operation point of the pump. Accordingly, abnormal lowering of the level of the well due to the excessive discharge at the starting of the pump and release of a gas dissolved in the water can be prevented. n COPYRIGHT: (C)1985,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2006070780-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2017094304-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-4553664-B2 |
| priorityDate | 1983-07-25^^<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/compound/CID962 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419512635 |
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