http://rdf.ncbi.nlm.nih.gov/pubchem/patent/SE-0950831-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_28b9eaac27d78079a052ce5992b65878 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B44-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B6-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B44-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B6-02 |
| filingDate | 2009-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9f0f8116f51868d5bc9b71acafc98104 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eb04abf3acef4820a3f408444732e653 |
| publicationDate | 2011-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | SE-0950831-A1 |
| titleOfInvention | Device and method for rock drilling |
| abstract | The present invention relates to a method for controlling the rotation speed of a tool (3) in a rock drilling device, wherein at least one hydraulic motor (16: 41) is arranged for rotation of said tool (3), and wherein said hydraulic motor (16; 41) is driven by a hydraulic pump (15; 42; 60) which, during operation, delivers a flow of hydraulic fluid. The method comprises: - passing substantially the entire hydraulic fluid flow delivered by the hydraulic pump (15: 42; 60) through the at least one hydraulic motor (16; 41), and - controlling the hydraulic fluid flow emitted from the hydraulic pump (15: 42; 60), wherein the the hydraulic fluid flow directly dependent on the rotational speed of the hydraulic motor (16; 41), and thus of the tool (3), is controlled. The invention also relates to a system and a rock drilling device. Fig. 2 |
| priorityDate | 2009-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.