Title:
削岩機並びにキャビテーション泡の発生及び分散を防ぐ削岩機の使用
Document Type and Number:
Japanese Patent JP5737816
Kind Code:
B2
Abstract:
Rock drilling machine (10) comprising a piston that is arranged to move back and forth in a chamber (12a, 12b) when the rock drilling machine (10) is in use, a cavitation-sensitive component (14), and an oil channel that is arranged to extend between the chamber (12a, 12b) and said cavitation-sensitive component (14). The oil channel comprises a series of restrictions (18) and oil volumes (20) to hinder the movement of cavitation bubbles through said oil channel.
Inventors:
Estlink, thomas
Application Number:
JP2013502529A
Publication Date:
June 17, 2015
Filing Date:
March 28, 2011
Export Citation:
Assignee:
Atlas Copco Rock Drills Activolag
International Classes:
B25D9/14
Domestic Patent References:
| JP7214479A | ||||
| JP2003505258A | ||||
| JP3055174A | ||||
| JP2008510090A |
Attorney, Agent or Firm:
Takao Hamano