Title:
削岩方法及び削岩装置
Document Type and Number:
Japanese Patent JP5396275
Kind Code:
B2
Abstract:
A method for producing Shockwave pulses in a tool direction (R) of a pulse machine (1) having a housing (2), wherein an impulse piston (4) is arranged, wherein the impulse piston is influenced by a first force in a direction opposite to said tool direction through a first fluid pressure (Pi) in a first chamber (7), and by a second force in said tool direction, wherein 'a Shockwave pulse is produced through a rapid relief of the first fluid pressure after displacement of the impulse piston (4) relative to the housing in a direction opposite to the tool direction, is distinguished in that the length of the shock wave is controlled by the length (L) of said displacement is regulated. The invention also concerns a device, rock drilling machine and a rock drilling rig.
Inventors:
Thomas, Guerlain
Application Number:
JP2009529150A
Publication Date:
January 22, 2014
Filing Date:
September 12, 2007
Export Citation:
Assignee:
Atlas Copco Rock Drills Activolag
International Classes:
E21B1/28; E21B1/36; E21B44/06
Domestic Patent References:
| JP8042277A | ||||
| JP62009878A | ||||
| JP63133985U | ||||
| JP5005603A |
Foreign References:
| WO2004073933A1 |
Attorney, Agent or Firm:
Takao Hamano
Teruichi Hirai
Teruichi Hirai