发明申请
US20120315165A1 VACUUM PUMP 有权
真空泵

VACUUM PUMP
摘要:
A vacuum pump comprises pumping elements arranged in a pumping chamber. An electric motor drives the pumping element. A frequency inverter is provided for changing the rotational speed of the electric motor. The frequency inverter is arranged in a frequency inverter housing immediately connected to the pump housing. An air cooler and a liquid cooler are arranged in the frequency inverter housing to cool the frequency inverter.
公开/授权文献
信息查询
0/0