| 摘要 |
Provided is a drilling device with improved fuel efficiency, reduced impact on the environment, and the like. Specifically, a drilling device (1) performs unload control for a compressor (16a) during engine (21) startup, and makes the air pressure in an air tank (16c) be at a first air pressure. Moreover, the air pressure in the air tank (16c) is maintained at the first air pressure while the engine (21) is running and a flushing mechanism (17) is not running. In addition, unload control for a compressor (16a) is performed during startup of the flushing mechanism (17), 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 is a low pressure (0.5 MPa) and the second air pressure is a high pressure (1.03 MPa). |
