发明名称 Operating procedure and cooling system mechanism for the motor of an electric powered tool
摘要 An operating procedure for the motor ( 1 ) of an electric powered tool. The operating idle speed of the motor ( 1 ) is set to a value using regulator electronics ( 4 ), and the operating speed is the same as a chosen operating speed (n<SUB>1</SUB>). The motor ( 1 ) runs on a pre-determined and higher idle speed (n<SUB>2</SUB>) for cooling purposes after a specific idle time (DeltaT). while the motor ( 1 ) runs on the pre-determined operating idle speed (n<SUB>1</SUB>). The engine speed is immediately set to the operating speed (n<SUB>1</SUB>) once again, when the motor requires a moment of strain at a certain period of time (T 3 ) to maintain simple and comfortable operating procedures.
申请公布号 US6911793(B2) 申请公布日期 2005.06.28
申请号 US20030737274 申请日期 2003.12.16
申请人 HILTI AKTIENGESELLSCHAFT 发明人 FRITSCH FRANK;SCHUSTER HERMANN
分类号 B25F5/00;H02P29/02;(IPC1-7):H02K9/02 主分类号 B25F5/00
代理机构 代理人
主权项
地址