公开(公告)号：US3969805A

公开(公告)日：1976-07-20

申请号：US535431

申请日：1974-12-23

申请人： Ronald J. Lievens ,  Richard W. Kabat

发明人： Ronald J. Lievens ,  Richard W. Kabat

IPC分类号： B23P15/00 ,  F04D29/52 ,  F04D29/64 ,  B23P15/04 ,  B23P11/02

CPC分类号： F04D29/526 ,  B23P15/006 ,  F04D29/646 ,  Y10T29/49327 ,  Y10T29/49863 ,  Y10T29/49879

摘要： A vane axial flow fan is shown having a shroud construction which provides greater than normal rigidity in the areas co-extensive with the stator vanes and fan wheel blades. Further, a novel method of constructing an axial flow fan is disclosed wherein the stator vanes are first mounted on an expandable split ring which is then placed within an annular stator housing. The split ring is then expanded to reduce stator vane end clearance prior to being permanently secured in place by welding.

摘要翻译： 叶片轴流风扇被示出具有护罩结构，其在与定子叶片和风扇叶轮叶片共同扩大的区域中提供大于正常的刚度。 此外，公开了一种构造轴流风扇的新颖方法，其中定子叶片首先安装在可扩张的开口环上，然后将其放置在环形定子壳体内。 然后在通过焊接永久固定就位之前，将开口环膨胀以减小定子叶片端部间隙。

公开(公告)号：US06945758B1

公开(公告)日：2005-09-20

申请号：US10093868

申请日：2002-03-08

申请人： Ronald J. Lievens ,  Tung Kim Nguyen ,  Wanlai Lin

发明人： Ronald J. Lievens ,  Tung Kim Nguyen ,  Wanlai Lin

IPC分类号： F01D1/00 ,  F04B17/00 ,  F04D19/00 ,  F04D25/02

CPC分类号： F04D19/002 ,  F04D25/02 ,  F05D2250/74

摘要： A tubeaxial fan (10) broadly including a cylinder (12), a propeller (14) rotatably supported in the cylinder (12), and a drive assembly (16) operable to rotate the propeller (14) is disclosed. The propeller (14) includes blades (28,30,32,34,36,38) each having an inventive blade design. The inventive blade design presents a chord length (C), a stagger angle (βe), and a camber height (δc) that vary along each of the blades as shown in TABLE 1. The inventive blade design presents an external surface of each of the blades having a shape defined by the relative positioning of a plurality of coordinates contained in at least nine cross-sections (e.g., the blade (28) includes cross-sections (44,46,48,50,52,54,56,58,60)). The cross-sections (44,46,48,50,52,54,56,58,60) of the illustrated blade (28) have the corresponding plurality of coordinates listed in TABLE 2. The drive assembly (16) incorporates an inventive design that presents, among other features, a cover dimension DC of the bearing cover (72) of less than about one-sixth the propeller diameter (δ), and tapering end sections (76a,76b) on the belt cover (76). A preferred alternative embodiment is also disclosed in the fan (210) including support plates (212a,212b) having a plate width (WP) between about one-tenth and one-seventh of the axial length of the cylinder (212).

摘要翻译： 公开了一种广泛地包括气缸（12），可旋转地支撑在气缸（12）中的螺旋桨（14））和可操作以旋转螺旋桨（14）的驱动组件（16）的管状风扇（10）。 螺旋桨（14）包括各自具有本发明的叶片设计的叶片（28,30,32,34,36,38）。 本发明的叶片设计呈现沿着每个叶片变化的弦长（C），交错角（β）和弧角高度（delta SUB），其变化为 本发明的叶片设计呈现每个叶片的外表面具有由包含在至少九个横截面中的多个坐标的相对定位限定的形状（例如，叶片（28）包括横截面） （44,46,48,50,52,54,56,58,60））。 所示刀片（28）的横截面（44,46,48,50,52,54,56,58,60）具有表2中列出的对应的多个坐标。驱动组件（16）结合了创造性 其特征在于，其具有小于螺旋桨直径（delta）的大约六分之一的轴承盖（72）的盖尺寸D C C和锥形端部（76a，76） b）在皮带罩（76）上。 在风扇（210）中还公开了一种优选的替代实施例，所述风扇包括支撑板（212a，212b），所述支撑板（212a，212b）具有在轴向的约十分之一到七分之一之间的板宽（W P P P） 气缸（212）的长度。

公开(公告)号：US4830274A

公开(公告)日：1989-05-16

申请号：US268743

申请日：1988-11-08

申请人： Tedd P. Johnson ,  Ronald J. Lievens

发明人： Tedd P. Johnson ,  Ronald J. Lievens

IPC分类号： F24F3/044 ,  F24F11/76

CPC分类号： F24F11/053 ,  F24F3/044

摘要： A pressure independent variable air volume valve (VAV valve) functions as a pressure dependent valve upon detecting a malfunctioning airflow indicator. Under normal operating conditions, the VAV valve modulates supply airflow to a comfort zone in response to the zone temperature and the rate of airflow through the valve. If the airflow indicator fails, the VAV valve modulates the supply airflow in response to the zone temperature, independent of the airflow indicator.

摘要翻译： 检测出故障的气流指示器时，压力独立的可变风量阀（VAV阀）用作压力相关阀。 在正常运行条件下，VAV阀根据区域温度和通过阀门的气流速率调节供应气流到舒适区域。 如果气流指示器出现故障，VAV阀门将根据区域温度调节供气量，与气流指示器无关。

公开(公告)号：US06722849B1

公开(公告)日：2004-04-20

申请号：US10093879

申请日：2002-03-08

申请人： Ronald J. Lievens ,  Tung Kim Nguyen ,  Wanlai Lin

发明人： Ronald J. Lievens ,  Tung Kim Nguyen ,  Wanlai Lin

IPC分类号： F01D100

CPC分类号： F01D1/00

摘要： A tubeaxial fan (10) broadly including a cylinder (12), a propeller (14) rotatably supported in the cylinder (12), and a drive assembly (16) operable to rotate the propeller (14) is disclosed. The propeller (14) includes blades (28,30,32,34,36,38) each having an inventive blade design. The inventive blade design presents a chord length (C), a stagger angle (&bgr;e), and a camber height (&dgr;c) that vary along each of the blades as shown in TABLE 1. The inventive blade design presents an external surface of each of the blades having a shape defined by the relative positioning of a plurality of coordinates contained in at least nine cross-sections (e.g., the blade (28) includes cross-sections (44,46,48,50,52,54,56,58,60)). The cross-sections (44,46,48,50,52,54,56,58,60) of the illustrated blade (28) have the corresponding plurality of coordinates listed in TABLE 2. The drive assembly (16) incorporates an inventive design that presents, among other features, a cover dimension DC of the bearing cover (72) of less than about one-sixth the propeller diameter (&dgr;), and tapering end sections (76a,76b) on the belt cover (76). A preferred alternative embodiment is also disclosed in the fan (210) including support plates (212a,212b) having a plate width (WP) between about one-tenth and one-seventh of the axial length of the cylinder (212).

摘要翻译： 公开了一种广泛地包括气缸（12），可旋转地支撑在气缸（12）中的螺旋桨（14））和可操作以旋转螺旋桨（14）的驱动组件（16）的管状风扇（10）。 螺旋桨（14）包括各自具有本发明的叶片设计的叶片（28,30,32,34,36,38）。 本发明的叶片设计呈现如表1所示沿每个叶片变化的弦长（C），交错角（betae）和外倾高度（deltac）。本发明的叶片设计呈现出每个叶片的外表面 具有由包含在至少九个横截面中的多个坐标（例如，叶片（28））的相对定位限定的形状的叶片包括横截面（44,46,48,50,52,54,56， 58,60））。 所示刀片（28）的横截面（44,46,48,50,52,54,56,58,60）具有表2中列出的对应的多个坐标。驱动组件（16）结合了创造性 其特征在于，其具有小于螺旋桨直径（delta）的六分之一的轴承盖（72）的盖尺寸DC以及带罩（76）上的锥形端部（76a，76b）。 在风扇（210）中还公开了一种优选的替代实施例，该风扇包括具有在气缸（212）的轴向长度的约十分之一到七分之一之间的板宽（WP）的支撑板（212a，212b）。

公开(公告)号：US06702548B1

公开(公告)日：2004-03-09

申请号：US10093869

申请日：2002-03-08

申请人： Ronald J. Lievens ,  Tung Kim Nguyen ,  Wanlai Lin

发明人： Ronald J. Lievens ,  Tung Kim Nguyen ,  Wanlai Lin

IPC分类号： F04D2938

CPC分类号： F04D29/384 ,  F04D19/002 ,  F04D25/02

摘要： A tubeaxial fan (10) broadly including a cylinder (12), a propeller (14) rotatably supported in the cylinder (12), and a drive assembly (16) operable to rotate the propeller (14) is disclosed. The propeller (14) includes blades (28, 30, 32, 34, 36, 38) each having an inventive blade design. The inventive blade design presents a chord length (C), a stagger angle (&bgr;e) and a camber height (&dgr;c) that vary along each of the blades as shown in TABLE 1. The inventive blade design presents an external surface of each of the blades having a shape defined by the relative positioning of a plurality of coordinates contained in at least nine cross-sections (e.g., the blade (28) includes cross-sections (44, 46, 48, 50, 52, 54, 56, 58, 60)). The cross-sections (44, 46, 48, 50, 52, 54, 56, 58, 60) of the illustrated blade (28) have the corresponding plurality of coordinates listed in TABLE 2. The drive assembly (16) incorporates an inventive design that presents, among other features, a cover dimension DC of the bearing cover (72) of less than about one-sixth the propeller diameter (&dgr;), and tapering end sections (76a,76b) on the belt cover (76). A preferred alternative embodiment is also disclosed in the fan (210) including support plates (212a,212b) having a plate width (Wp) between about one-tenth and one-seventh of the axial length of the cylinder (212).

摘要翻译： 公开了一种广泛地包括气缸（12），可旋转地支撑在气缸（12）中的螺旋桨（14））和可操作以旋转螺旋桨（14）的驱动组件（16）的管状风扇（10）。 螺旋桨（14）包括各自具有本发明的叶片设计的叶片（28,30,32,34,36,38）。 本发明的叶片设计呈现如表1所示沿每个叶片变化的弦长（C），交错角（betae）和外倾高度（deltac）。本发明的叶片设计呈现出每个叶片的外表面 具有由包含在至少九个横截面中的多个坐标（例如，叶片（28））的相对定位限定的形状的叶片包括横截面（44,46,48,50,52,54,56,58 ，60））。 所示刀片（28）的横截面（44,46,48,50,52,54,56,58,60）具有表2所列的对应的多个坐标。驱动组件（16）结合了创造性 其特征在于，其具有小于螺旋桨直径（delta）的六分之一的轴承盖（72）的盖尺寸DC以及带罩（76）上的锥形端部（76a，76b）。 在风扇（210）中还公开了一种优选的替代实施例，该风扇包括支撑板（212a，212b），其具有在气缸（212）的轴向长度的约十分之一到七分之一的板宽度（Wp）。