EP 2220336 A4 20160427 - ROCK DRILLING RIG AND METHOD FOR DRILLING
Title (en)
ROCK DRILLING RIG AND METHOD FOR DRILLING
Title (de)
STEINBOHRANLAGE UND BOHRVERFAHREN
Title (fr)
APPAREIL DE FORAGE DE ROCHE ET PROCÉDÉ DE FORAGE
Publication
Application
Priority
- FI 2008050742 W 20081215
- FI 20075923 A 20071217
Abstract (en)
[origin: WO2009077656A1] The invention relates to a rock drilling rigand a method of drilling rock. The rock drilling rig (2) comprises a flushing system with two or more compressors (9a, 9b) for generating the required compressed air for the flushing. The flushing air is conveyed along a flushing duct (11) to a rock drill machine (5) and further along a tool (12) into a drill hole (10). The rock drilling rig comprises a driving engine (8) arranged via a transmission device (16) to operate the compressors. Transmission to one or more compressors can be disconnected when the need forflushing air is small.
IPC 8 full level
E21B 21/08 (2006.01); E21B 7/02 (2006.01); E21B 21/16 (2006.01); E21B 44/00 (2006.01)
CPC (source: EP FI)
E21B 7/022 (2013.01 - EP FI); E21B 7/025 (2013.01 - EP FI); E21B 21/08 (2013.01 - FI); E21B 21/16 (2013.01 - EP); E21B 44/00 (2013.01 - FI)
Citation (search report)
- [Y] WO 03093699 A1 20031113 - SANDVIK TAMROCK OY [FI], et al
- [Y] US 4161222 A 19790717 - PYE DAVID S [US]
- [A] WO 9928592 A1 19990610 - SANDVIK AB [SE]
- See references of WO 2009077656A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2009077656 A1 20090625; AU 2008337359 A1 20090625; AU 2008337359 B2 20110721; CN 101896686 A 20101124; EP 2220336 A1 20100825; EP 2220336 A4 20160427; EP 2220336 B1 20170426; FI 123650 B 20130830; FI 20075923 A0 20071217; FI 20075923 A 20090618
DOCDB simple family (application)
FI 2008050742 W 20081215; AU 2008337359 A 20081215; CN 200880120423 A 20081215; EP 08861896 A 20081215; FI 20075923 A 20071217