EP 2955316 A1 20151216 - Rock drilling and method of drilling
Title (en)
Rock drilling and method of drilling
Title (de)
Gesteinsbohren und Verfahren zum Bohren
Title (fr)
Forage de roches et procédé de forage
Publication
Application
Priority
EP 14172337 A 20140613
Abstract (en)
The invention relates to a rock drilling rig and method of drilling. The rock drilling rig (1) comprises a main hydraulic power pack (MHPP) and several hydraulic actuators connected to the hydraulic system. The rig further comprises an auxiliary hydraulic power pack (APP), which comprises a dedicated electrical power device (20) and a hydraulic pump (19) rotated by the power device. The auxiliary power pack in independently operable and may be arranged to produce hydraulic power for particular hydraulic actuators.
IPC 8 full level
E21B 7/02 (2006.01)
CPC (source: EP)
E21B 7/022 (2013.01); E21B 7/025 (2013.01)
Citation (search report)
- [XI] WO 2004065761 A1 20040805 - SANDVIK TAMROCK OY [FI], et al
- [XI] EP 0300080 A1 19890125 - KLEMM BOHRTECH [DE]
- [XI] WO 03050388 A1 20030619 - SANDVIK TAMROCK OY [FI], et al
- [A] WO 2012059642 A1 20120510 - SANDVIK MINING & CONSTR OY [FI], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 14172337 A 20140613