EP 2519418 A1 20121107 - ROCK DRILLING DEVICE
Title (en)
ROCK DRILLING DEVICE
Title (de)
GESTEINSBOHRVORRICHTUNG
Title (fr)
DISPOSITIF DE PERÇAGE DE ROCHE
Publication
Application
Priority
- FI 20096401 A 20091228
- FI 2010051086 W 20101227
Abstract (en)
[origin: WO2011080391A1] The invention relates to rock drilling equipment provided with electrically operated operation devices and means for connecting the rock drilling equipment to an electrical network (18). The rock drilling equipment comprises a voltage transformation means for transforming a voltage level as necessary either from higher to lower or from lower to higher, and the rock drilling equipment (1) is provided with electrically operated operation devices whose voltage levels (U1, U2) are different in magnitude. The rock drilling equipment (1) is provided with connecting means for feeding some of the electrically operated operation devices directly from the electrical network (18) and for feeding some of the electrically operated operation devices via the voltage transformation means, whereby it is possible to select by the connecting means the operation devices to be fed directly from the electrical network (18) on the basis of their voltage levels.
IPC 8 full level
B60L 1/00 (2006.01); B60L 9/24 (2006.01); E21B 7/02 (2006.01)
CPC (source: EP FI)
B60L 1/00 (2013.01 - FI); B60L 1/003 (2013.01 - EP); B60L 9/24 (2013.01 - EP FI); E21B 7/025 (2013.01 - EP)
Citation (search report)
See references of WO 2011080391A1
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
DOCDB simple family (publication)
WO 2011080391 A1 20110707; AU 2010338144 A1 20120816; AU 2010338144 B2 20140424; CA 2783203 A1 20110707; CA 2783203 C 20150707; CN 102686440 A 20120919; CN 102686440 B 20150610; EP 2519418 A1 20121107; FI 122192 B 20111014; FI 20096401 A0 20091228; FI 20096401 A 20110629; JP 2013515882 A 20130509; JP 5373204 B2 20131218; ZA 201204723 B 20130327
DOCDB simple family (application)
FI 2010051086 W 20101227; AU 2010338144 A 20101227; CA 2783203 A 20101227; CN 201080060013 A 20101227; EP 10840639 A 20101227; FI 20096401 A 20091228; JP 2012545366 A 20101227; ZA 201204723 A 20120625