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公开(公告)号：US07585149B2
公开(公告)日：2009-09-08
申请号：US11499948
申请日：2006-08-07
IPC分类号： F04D29/40
CPC分类号： F04D29/526 , F01P5/06 , F01P11/10 , F04D27/002 , F04D29/545
摘要： A fan system includes a rotatable axial flow fan unit, a fan shroud unit adjacent to the fan unit and capable of surrounding at least a portion of an outer periphery of the fan unit; and an actuator coupled to one of the units and operable to move said one of the units with respect to the other of the units, thereby varying immersion of the fan unit within the shroud unit. The actuator may be coupled to the shroud unit and is operable to move the shroud unit with respect to the fan unit. A control unit controls the actuator to vary fan immersion as a function of sensed parameter signals, and thereby maximizes fan efficiency.
摘要翻译： 风扇系统包括可旋转轴流风扇单元，与风扇单元相邻并且能够围绕风扇单元的外周的至少一部分的风扇罩单元; 以及致动器，其联接到所述单元之一并且可操作以相对于所述单元中的另一个移动所述单元中的所述一个，从而改变所述风扇单元在所述护罩单元内的浸入。 致动器可以联接到护罩单元并且可操作以相对于风扇单元移动护罩单元。 控制单元控制致动器以根据感测参数信号改变风扇浸入，从而最大化风扇效率。
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公开(公告)号：US20080031721A1
公开(公告)日：2008-02-07
申请号：US11499948
申请日：2006-08-07
IPC分类号： F01D21/04
CPC分类号： F04D29/526 , F01P5/06 , F01P11/10 , F04D27/002 , F04D29/545
摘要： A fan system includes a rotatable axial flow fan unit, a fan shroud unit adjacent to the fan unit and capable of surrounding at least a portion of an outer periphery of the fan unit; and an actuator coupled to one of the units and operable to move said one of the units with respect to the other of the units, thereby varying immersion of the fan unit within the shroud unit. The actuator may be coupled to the shroud unit and is operable to move the shroud unit with respect to the fan unit. A control unit controls the actuator to vary fan immersion as a function of sensed parameter signals, and thereby maximizes fan efficiency.
摘要翻译： 风扇系统包括可旋转轴流风扇单元，与风扇单元相邻并且能够围绕风扇单元的外周的至少一部分的风扇罩单元; 以及致动器，其联接到所述单元之一并且可操作以相对于所述单元中的另一个移动所述单元中的所述一个，从而改变所述风扇单元在所述护罩单元内的浸入。 致动器可以联接到护罩单元并且可操作以相对于风扇单元移动护罩单元。 控制单元控制致动器以根据感测参数信号改变风扇浸入，从而最大化风扇效率。
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