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公开(公告)号：US08137070B2
公开(公告)日：2012-03-20
申请号：US13045351
申请日：2011-03-10
申请人： Robert J. Van Houten
发明人： Robert J. Van Houten
IPC分类号： F04D29/38
CPC分类号： F04D29/386 , F04D29/164 , Y10S416/02 , Y10S416/05
摘要： A free-tipped axial fan assembly has a skew distribution which reduces fan noise while minimizing radial tip deflection. The difference between the maximum value of leading-edge skew and the value of leading-edge skew at the fan radius is at least 10 degrees. The ratio of the difference of the leading-edge skew between the maximum value and the value at the fan radius to the difference of the trailing-edge skew between the maximum value and the value at the fan radius is at least 2.5.
摘要翻译： 自由倾斜的轴流风扇组件具有倾斜分布，其减小风扇噪声，同时使径向末端偏转最小化。 前缘歪斜的最大值与风扇半径前缘歪斜值之差至少为10度。 最大值与风扇半径值之间的前缘歪斜差与最大值与风扇半径值之间的后缘歪斜差之比至少为2.5。
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公开(公告)号：US20120301329A1
公开(公告)日：2012-11-29
申请号：US13481322
申请日：2012-05-25
IPC分类号： F04B39/00
CPC分类号： F04D29/547 , F01P5/06 , F04D29/542 , F04D29/663 , F05D2250/182
摘要： An airflow assembly, includes a plenum, a barrel, a fan support, a fan assembly, and a plurality of ribs. The plenum includes an opening structure defining a plenum opening. The barrel extends in a downstream direction from the opening structure, and defines a barrel space and a downstream edge. The fan support is at least partially positioned within the barrel space. The fan assembly is supported by the fan support and includes (i) a motor and (ii) a blade assembly configured to rotate about an axis. Each of the ribs extends between (i) the opening structure or the barrel and (ii) the fan support. The downstream direction is parallel to the axis. An upstream direction is opposite of the downstream direction and parallel to the axis. A plane intersects the axis and is perpendicular to the axis.
摘要翻译： 气流组件包括增压室，筒体，风扇支架，风扇组件和多个肋。 增压室包括限定增压开口的开口结构。 筒从开口结构沿下游方向延伸，并且限定了桶空间和下游边缘。 风扇支撑件至少部分地定位在机筒空间内。 风扇组件由风扇支撑件支撑，并且包括（i）电动机和（ii）构造成绕轴线旋转的叶片组件。 每个肋条在（i）开口结构或筒体之间延伸，（ii）风扇支架。 下游方向平行于轴线。 上游方向与下游方向相反并平行于轴线。 平面与轴相交并垂直于轴。
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公开(公告)号：US20110223024A1
公开(公告)日：2011-09-15
申请号：US13045351
申请日：2011-03-10
申请人： Robert J. Van Houten
发明人： Robert J. Van Houten
IPC分类号： F04D29/38
CPC分类号： F04D29/386 , F04D29/164 , Y10S416/02 , Y10S416/05
摘要： A free-tipped axial fan assembly has a skew distribution which reduces fan noise while minimizing radial tip deflection. The difference between the maximum value of leading-edge skew and the value of leading-edge skew at the fan radius is at least 10 degrees. The ratio of the difference of the leading-edge skew between the maximum value and the value at the fan radius to the difference of the trailing-edge skew between the maximum value and the value at the fan radius is at least 2.5.
摘要翻译： 自由倾斜的轴流风扇组件具有倾斜分布，其减小风扇噪声，同时使径向末端偏转最小化。 前缘歪斜的最大值与风扇半径前缘歪斜值之差至少为10度。 最大值与风扇半径值之间的前缘歪斜差与最大值与风扇半径值之间的后缘歪斜差之比至少为2.5。
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公开(公告)号：US5000660A
公开(公告)日：1991-03-19
申请号：US392769
申请日：1989-08-11
申请人： Robert J. Van Houten , David Daiute
发明人： Robert J. Van Houten , David Daiute
CPC分类号： F04D29/328 , F04D29/386 , F04D29/666
摘要： An axial flow fan comprising: a cental hub rotatable on an axis; and a plurality of blades extending from the hub, each of the blades comprising a root portion adjacent to the hub, and terminating in a tip portion, the root portions of the blades being approximately evenly spaced around the hub; wherein each of the blades exhibits a curvature from the root portion of the blade to the blade's tip portion, the curvature being in a plane that is perpendicular to the axis on which the fan rotates; and wherein the curvature differs between at least two of the blades, such that the distance between the tip portions of at least wo sets of adjacent blades is unequal. The invention therefore achieves the advantage of having uneven blade spacing near the tips while maintaining high solidity near the hub, where the blade spacing is even. Uneven blade spacing near the tips reduces noise. Having high solidity near the hub, where non-dimensional loading is highest, maintains higher dynamic performance.
摘要翻译： 一种轴流风扇，包括：可沿轴线旋转的中心轮毂; 以及从所述轮毂延伸的多个叶片，每个所述叶片包括与所述轮毂相邻的根部，并且终止于尖端部分，所述叶片的根部围绕所述轮毂大致均匀间隔; 其中每个所述叶片呈现出从所述叶片的根部到所述叶片的尖端部分的曲率，所述曲率在与所述风扇旋转的轴线垂直的平面中; 并且其中所述曲率在至少两个叶片之间不同，使得至少相邻叶片组的尖端部分之间的距离不相等。 因此，本发明实现了在尖端附近具有不均匀的叶片间隔的优点，同时在毂附近保持高的固体度，其中叶片间隔是均匀的。 尖端附近的叶片间距不均匀会降低噪音。 在集线器附近具有高度坚固性，其中无尺寸加载最高，保持更高的动态性能。
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公开(公告)号：US09157455B2
公开(公告)日：2015-10-13
申请号：US13481322
申请日：2012-05-25
CPC分类号： F04D29/547 , F01P5/06 , F04D29/542 , F04D29/663 , F05D2250/182
摘要： An airflow assembly, includes a plenum, a barrel, a fan support, a fan assembly, and a plurality of ribs. The plenum includes an opening structure defining a plenum opening. The barrel extends in a downstream direction from the opening structure, and defines a barrel space and a downstream edge. The fan support is at least partially positioned within the barrel space. The fan assembly is supported by the fan support and includes (i) a motor and (ii) a blade assembly configured to rotate about an axis. Each of the ribs extends between (i) the opening structure or the barrel and (ii) the fan support. The downstream direction is parallel to the axis. An upstream direction is opposite of the downstream direction and parallel to the axis. A plane intersects the axis and is perpendicular to the axis.
摘要翻译： 气流组件包括增压室，筒体，风扇支架，风扇组件和多个肋。 增压室包括限定增压开口的开口结构。 筒从开口结构沿下游方向延伸，并且限定了桶空间和下游边缘。 风扇支撑件至少部分地定位在机筒空间内。 风扇组件由风扇支撑件支撑，并且包括（i）电动机和（ii）构造成绕轴线旋转的叶片组件。 每个肋条在（i）开口结构或筒体之间延伸，（ii）风扇支架。 下游方向平行于轴线。 上游方向与下游方向相反并平行于轴线。 平面与轴相交并垂直于轴。
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公开(公告)号：US5957663A
公开(公告)日：1999-09-28
申请号：US745691
申请日：1996-11-12
CPC分类号： F01P7/048 , B60H1/00828 , F01P2025/04 , F01P2060/14
摘要： A cooling system for an automotive vehicle of the type having a radiator through which a coolant fluid flows includes a fan motor for driving a fan which moves air through the radiator; an alternator for supplying an output voltage to the fan motor; and a voltage regulator which selectively excites the alternator's field winding in response to a control signal, determined on the basis of at least one operational parameter of the vehicle indicative of the cooling requirements of the engine which powers the vehicle to control the output voltage of the alternator, thereby controlling the speed of the fan motor.
摘要翻译： 一种具有冷却剂流体流过的散热器的机动车辆的冷却系统包括用于驱动风扇的风扇马达，所述风扇电机使空气通过散热器; 用于向风扇马达提供输出电压的交流发电机; 以及电压调节器，其响应于控制信号选择性地激励交流发电机的励磁绕组，所述控制信号基于指示发动机的至少一个操作参数确定的，所述运行参数为车辆供电以控制车辆的输出电压 交流发电机，从而控制风扇电机的转速。
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公开(公告)号：US10041505B2
公开(公告)日：2018-08-07
申请号：US13523715
申请日：2012-06-14
摘要： An airflow assembly includes a fan, a shroud, a plurality of ribs, and a fan support. The fan has a number of fan blades. The shroud includes (i) a plenum defining a plenum opening located adjacent to the number of fan blades, and (ii) a barrel extending from the plenum so as to surround the plenum opening. The plenum further defines at least one airflow opening spaced apart from the plenum opening. Each of the plurality of ribs extends inwardly from the barrel. The fan support is attached to the plurality of ribs and is configured to support the fan. The at least one airflow opening is not an attachment structure or a guiding structure, is not configured to receive a fastening member, and does not function as a water drain.
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公开(公告)号：US20110211949A1
公开(公告)日：2011-09-01
申请号：US13035440
申请日：2011-02-25
申请人： Robert J. Van Houten
发明人： Robert J. Van Houten
IPC分类号： F01D25/24
CPC分类号： F04D29/384 , F04D29/164 , F04D29/681
摘要： A free-tipped axial fan assembly includes fan having a blade tip geometry which provides a desired blade loading in the presence of a tip gap. The maximum camber exhibits a sudden and significant increase as the blade tip radius R is closely approached in the direction of increasing radial position. In some constructions, the maximum camber at the blade tip radius R is at least 10 percent greater than the maximum camber at a radial position r where r/R=0.95. In some constructions, the blade angle increases by more than 0.01 radians from a radial position r where r/R=0.95 to the blade tip radius R. The maximum camber at the blade tip radius R is at least 0.06 times the chord length in some constructions.
摘要翻译： 自由倾斜的轴流风扇组件包括具有叶片尖端几何形状的风扇，其在尖端间隙的存在下提供期望的叶片负载。 随着叶片尖端半径R在增加径向位置的方向上紧密接近，最大弯度表现出突然和显着的增加。 在一些结构中，叶片顶端半径R处的最大弧度比r / R = 0.95的径向位置r处的最大弯度至少大10％。 在一些结构中，叶片角度从r / R = 0.95到叶片尖端半径R的径向位置r增加大于0.01弧度。在一些叶片尖端半径R处，叶片尖端半径R处的最大弯度至少为弦长的0.06倍 建筑。
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公开(公告)号：US5967764A
公开(公告)日：1999-10-19
申请号：US907557
申请日：1997-08-08
CPC分类号： H02K9/06 , F04D25/082
摘要： A fan and electric motor combination (or a fan adapted to be used in such a combination) which provides improved cooling for the motor, using a centrifugal impeller including rotating impeller blades. The impeller blades span between an impeller inlet and an impeller outlet, and they rotate to assist cooling airflow for the motor. Cooling airflow is also assisted by the position of the impeller in that the impeller outlet is positioned upstream of an intersection of the fan blade trailing edge and the hub. Therefore, cooling airflow is assisted by at least some (preferably all) of the pressure drop across the axial fan. If the impeller outlet is positioned still further upstream, e.g., upstream of an intersection of the fan blade leading edge and the hub, then the motor cooling airflow is assisted by all or nearly all of the pressure drop across the axial fan.
摘要翻译： 一种风扇和电动机组合（或适于以这种组合使用的风扇），其使用包括旋转叶轮叶片的离心式叶轮提供电机的改进的冷却。 叶轮叶片跨在叶轮入口和叶轮出口之间，并且它们旋转以辅助电动机的冷却气流。 冷却气流也由叶轮的位置辅助，因为叶轮出口位于风扇叶片后缘和轮毂的相交处的上游。 因此，通过轴流风扇上的至少一些（优选全部）压降来辅助冷却气流。 如果叶轮出口还位于上游，例如风扇叶片前缘和轮毂的交点的上游，则电动机冷却气流由跨过轴流风扇的全部或几乎所有的压降辅助。
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公开(公告)号：US09004860B2
公开(公告)日：2015-04-14
申请号：US13035440
申请日：2011-02-25
申请人： Robert J. Van Houten
发明人： Robert J. Van Houten
CPC分类号： F04D29/384 , F04D29/164 , F04D29/681
摘要： A free-tipped axial fan assembly includes fan having a blade tip geometry which provides a desired blade loading in the presence of a tip gap. The maximum camber exhibits a sudden and significant increase as the blade tip radius R is closely approached in the direction of increasing radial position. In some constructions, the maximum camber at the blade tip radius R is at least 10 percent greater than the maximum camber at a radial position r where r/R=0.95. In some constructions, the blade angle increases by more than 0.01 radians from a radial position r where r/R=0.95 to the blade tip radius R. The maximum camber at the blade tip radius R is at least 0.06 times the chord length in some constructions.
摘要翻译： 自由倾斜的轴流风扇组件包括具有叶片尖端几何形状的风扇，其在尖端间隙的存在下提供期望的叶片负载。 随着叶片尖端半径R在增加径向位置的方向上紧密接近，最大弯度表现出突然和显着的增加。 在一些结构中，叶片顶端半径R处的最大弧度比r / R = 0.95的径向位置r处的最大弯度至少大10％。 在一些结构中，叶片角度从r / R = 0.95到叶片尖端半径R的径向位置r增加大于0.01弧度。在一些叶片尖端半径R处，叶片尖端半径R处的最大弯度至少为弦长的0.06倍 建筑。
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