Title:
さく孔機、アンロード制御用プログラム
Document Type and Number:
Japanese Patent JP6502268
Kind Code:
B2
Abstract:
A drilling device with improved fuel efficiency, reduced impact on the environment, and the like is provided. Specifically, a drilling device (1) performs unload control of a compressor (16a) when an engine (21) starts up, and brings the air pressure in an air tank (16c) to a first air pressure. Moreover, the air pressure in the air tank (16c) is kept at the first air pressure while the engine (21) is driven and a flushing mechanism (17) is not driven. In addition, unload control of the compressor (16a) is performed when the flushing mechanism (17) starts up, and the air pressure in the air tank (16c) is increased to a second air pressure that is higher than the first air pressure. For example, the first air pressure and the second air pressure are a low pressure (0.5 MPa) and a high pressure (1.03 MPa), respectively.
Inventors:
Masatoshi Homma
Hiroki Ishikawa
Hiroki Ishikawa
Application Number:
JP2015559635A
Publication Date:
April 17, 2019
Filing Date:
December 26, 2014
Export Citation:
Assignee:
Furukawa Rock Drill Co., Ltd.
International Classes:
E21B21/08; F04B49/08
Domestic Patent References:
| JP2005526214A | ||||
| JP2009534556A |
Foreign References:
| WO2009077656A1 |
Attorney, Agent or Firm:
Tetsuya Mori
Hide Tanaka Tetsu
Ichi Hirose
Hide Tanaka Tetsu
Ichi Hirose