http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2160536-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_39310a6ff197ee329af7318ccbc89f13 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F16K11-048 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F16K11-056 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F15B13-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F16K31-04 |
| filingDate | 2008-06-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_018973a663c54ebc0ecc02271f2fb2a4 |
| publicationDate | 2010-03-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-2160536-A1 |
| titleOfInvention | An actuator for a pilot for hydraulic control valves |
| abstract | An actuator for a pilot for a hydraulic control valve including a direct-current servo-motor (1) provided with a high-ratio gear (4) and arranged to be operated by a battery (2) with an associated battery charger (13), and an oil return port (10), a pilot port (11) and a hydraulic supply (12) and via the gear (4), the servo-motor (1) is arranged to move a valve stem (5) which bears via a first valve ball (7) on a spring-loaded pilot needle (8) which bears, opposite the first valve ball (7), on a second spring-loaded valve ball (7), a spring and a return spring (9) being arranged to move the valve balls (7) towards the pilot needle (8), and a microprocessor with an associated controller (3) being arranged to determine the position of the valve stem (5) by registration of the rotational position of the servo-motor; and, if a control signal is interrupted, the controller (3) is arranged to drive the valve stem (5) into a predetermined position by means of current from the battery (2). |
| priorityDate | 2007-07-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 17.