| 摘要 |
PURPOSE: A blower with an impeller case capable of producing large air volume by a small impeller is provided to effectively reduce vibration and noise with minimizing the waste of electricity. CONSTITUTION: A blower(10) with an impeller case(200) capable of producing large air volume by a small impeller comprises an impeller(300). The impeller is placed on one side of a motor(100). The impeller case comprises first, second, and third cases(210,230,250). The first to third cases are placed on one side of the motor to protect the impeller. The blower is equipped with a double impeller with a diameter of 400 mm and a blowing capacity of 10m^3/minute. The air volume is determined according to the impeller guide standards of the first and second cases. [Reference numerals] (AA) Number; (BB) Measurement; (CC) Wind pressure; (DD) Air volume; (EE) Electric power; (FF) Current |
