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1. 发明授权

US5827044A Fan system with variable air volume control 失效
标题翻译：风机系统具有可变风量控制
公开(公告)号：US5827044A
公开(公告)日：1998-10-27
申请号：US824663
申请日：1997-03-26
申请人： Muammer Yazici , Werner Richarz , George William Donald Wallace
发明人： Muammer Yazici , Werner Richarz , George William Donald Wallace
IPC分类号： F04D27/02 , F04D29/42 , F04D29/62 , F04D29/44 , F04D29/46
CPC分类号： F04D29/4213 , F04D27/002 , F04D29/626
摘要： A centrifugal fan apparatus for installation in an air plenum adapted to provide pressurized air to a ventilating system includes a centrifugal fan rotor having front and rear sidewalls and a number of blades extending between these sidewalls. The platform has a horizontal base frame on which wheels are rotatably mounted. The front sidewall has a central opening for receiving air while the rear sidewall is attached to a rotatable drive shaft that extends rearwardly from the rotor. A motor is connected to the shaft in order to rotate it and the rotor. A linearly movable platform supports the rotor, shaft and motor and an actuator moves this platform forwardly or rearwardly in order to control the volume of air flowing out of the rotor. An air inlet member is mounted rigidly at the central opening and has a generally cylindrical section that can extend into the rotor when the rotor is moved to a forward position.
摘要翻译：用于安装在适于向通风系统提供加压空气的空气增压室中的离心风扇装置包括离心式风扇转子，其具有前侧壁和后侧壁以及在这些侧壁之间延伸的多个叶片。该平台具有水平的基架，轮可旋转地安装在该水平底架上。前侧壁具有用于接收空气的中心开口，而后侧壁附接到从转子向后延伸的可旋转驱动轴。电机连接到轴上以使其和转子旋转。线性移动平台支撑转子，轴和马达，并且致动器向前或向后移动该平台，以便控制从转子流出的空气的体积。空气入口构件刚性地安装在中央开口处，并且具有大致圆柱形的部分，当转子移动到向前位置时，该部分可以延伸到转子中。

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