| 发明名称 |
Hand-held electric drill has motor driven air compressor discharging adiabatically-cooled air at drill bit |
| 摘要 |
<p>A hand-held drill (2) has a motor (26), a tool holder (8), a drill bit (10) with a diamond crown. The rotating drill bit is cooled by a cooling gas delivered by the motor. The drill has a cooling displacement compressor (20) that discharges compressed air through a process of adiabatic expansion.</p> |
| 申请公布号 |
DE102004035872(B3) |
申请公布日期 |
2005.09.22 |
| 申请号 |
DE20041035872 |
申请日期 |
2004.07.23 |
| 申请人 |
HILTI AG, SCHAAN |
发明人 |
SANCHEN, GUENTHER;DORFMEISTER, JOHANN;GSTOEHL, RAFFAEL;DROBOT, MARC |
| 分类号 |
B23B45/00;B23Q11/12;(IPC1-7):B23B45/00 |
主分类号 |
B23B45/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
