Geoffrey D. Daly,Alexander Virr,Stephen A. Lea,Dion Charles C. Martin,Nicholas J. Reed,Larry Puckeridge,Timothy Tsun-Fai Fu
申请号：
US13922419
公开号：
US10400773B2
申请日:
2013.06.20
申请国别(地区):
US
年份:
2019
代理人:
摘要：
A variable speed blower for Continuous Positive Airway Pressure (CPAP) ventilation of patients includes two impellers in the gas flow path that cooperatively pressurize gas to desired pressure and flow characteristics. Thus, the blower can provide faster pressure response and desired flow characteristics over a narrower range of motor speeds, resulting in greater reliability and less acoustic noise.
