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公开(公告)号：US20070212218A1
公开(公告)日：2007-09-13
申请号：US11714521
申请日：2007-03-06
IPC分类号： F03B3/16
CPC分类号： F04D29/4226
摘要： A centrifugal blower having a fan including a blade. A scroll casing houses the fan and has a first axial wall portion, a second axial wall portion, and a side wall extending between the first and second axial wall portions. The scroll casing includes a suction port in the first axial wall portion. The scroll casing also defines a scroll start portion and a scroll finish portion. The scroll casing has a scroll radius measured transverse to the rotation axis that changes from the scroll start portion to the scroll finish portion. Also, a maximum radius of the scroll radius is closer to the second axial wall portion than the first axial wall portion.
摘要翻译： 一种具有包括叶片的风扇的离心式鼓风机。 涡旋壳体容纳风扇，并具有第一轴向壁部分，第二轴向壁部分和在第一和第二轴向壁部分之间延伸的侧壁。 涡旋壳体包括在第一轴向壁部分中的吸入口。 涡旋壳体还限定滚动开始部分和滚动整理部分。 涡旋壳体具有横向于从涡旋起始部分到滚动终点部分的旋转轴线测量的涡旋半径。 此外，涡旋半径的最大半径比第一轴向壁部更靠近第二轴向壁部。
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公开(公告)号：US07972110B2
公开(公告)日：2011-07-05
申请号：US11714521
申请日：2007-03-06
IPC分类号： F04D29/42
CPC分类号： F04D29/4226
摘要： A centrifugal blower having a fan including a blade. A scroll casing houses the fan and has a first axial wall portion, a second axial wall portion, and a side wall extending between the first and second axial wall portions. The scroll casing includes a suction port in the first axial wall portion. The scroll casing also defines a scroll start portion and a scroll finish portion. The scroll casing has a scroll radius measured transverse to the rotation axis that changes from the scroll start portion to the scroll finish portion. Also, a maximum radius of the scroll radius is closer to the second axial wall portion than the first axial wall portion.
摘要翻译： 一种具有包括叶片的风扇的离心式鼓风机。 涡旋壳体容纳风扇，并具有第一轴向壁部分，第二轴向壁部分和在第一和第二轴向壁部分之间延伸的侧壁。 涡旋壳体包括在第一轴向壁部分中的吸入口。 涡旋壳体还限定滚动开始部分和滚动整理部分。 涡旋壳体具有横向于从涡旋起始部分到滚动终点部分的旋转轴线测量的涡旋半径。 此外，涡旋半径的最大半径比第一轴向壁部更靠近第二轴向壁部。
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公开(公告)号：US07281897B2
公开(公告)日：2007-10-16
申请号：US11313173
申请日：2005-12-20
IPC分类号： F04D29/30
CPC分类号： F04D29/282 , F04D29/30
摘要： Each of blades of a multi-blade centrifugal blower is provided with a taper portion, which is arranged at an inside periphery at least at the side of one rotation-shaft-direction end of the blade and tapers from the side of other rotation-shaft-direction end of the blade toward the side of the one rotation-shaft-direction end. The taper portion is positioned at a rotation-direction front side with respect to a back portion disposed at the side of the other rotation-shaft-direction end of the blade. Each of inlet angles throughout the taper portion is set in a range from 55° to 74°. Therefore, air flowing speed at an outlet of an impeller wheel is uniformed throughout the blade width. Work capacity and efficiency of the impeller wheel are increased, while noise is reduced.
摘要翻译： 多叶片离心式鼓风机的叶片中的每一个叶片均设置有锥形部，该锥形部至少在叶片的一个旋转轴方向端部的内侧配置，并且从其他旋转轴的一侧逐渐变细 叶片朝向一个旋转轴方向端侧的方向端。 锥形部分相对于设置在叶片的另一旋转轴方向端侧的后部位于旋转方向前侧。 整个锥形部分中的每个入口角度设定在55°至74°的范围内。 因此，在叶片宽度的叶轮的出口处的空气流动速度是均匀的。 增加叶轮的工作能力和效率，降低噪音。
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公开(公告)号：US20060140758A1
公开(公告)日：2006-06-29
申请号：US11313173
申请日：2005-12-20
IPC分类号： F04D29/44
CPC分类号： F04D29/282 , F04D29/30
摘要： Each of blades of a multi-blade centrifugal blower is provided with a taper portion, which is arranged at an inside periphery at least at the side of one rotation-shaft-direction end of the blade and tapers from the side of other rotation-shaft-direction end of the blade toward the side of the one rotation-shaft-direction end. The taper portion is positioned at a rotation-direction front side with respect to a back portion disposed at the side of the other rotation-shaft-direction end of the blade. Each of inlet angles throughout the taper portion is set in a range from 55° to 74°. Therefore, air flowing speed at an outlet of an impeller wheel is uniformed throughout the blade width. Work capacity and efficiency of the impeller wheel are increased, while noise is reduced.
摘要翻译： 多叶片离心式鼓风机的叶片中的每一个叶片均设置有锥形部，该锥形部至少在叶片的一个旋转轴方向端部的内侧配置，并且从其他旋转轴的一侧逐渐变细 叶片朝向一个旋转轴方向端侧的方向端。 锥形部分相对于设置在叶片的另一旋转轴方向端侧的后部位于旋转方向前侧。 整个锥形部分中的每个入口角度设定在55°至74°的范围内。 因此，在叶片宽度的叶轮的出口处的空气流动速度是均匀的。 增加叶轮的工作能力和效率，降低噪音。
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公开(公告)号：US20070217908A1
公开(公告)日：2007-09-20
申请号：US11715743
申请日：2007-03-08
申请人： Toshinori Ochiai , Masaharu Sakai , Hideki Seki
发明人： Toshinori Ochiai , Masaharu Sakai , Hideki Seki
IPC分类号： F04D29/44
CPC分类号： F04D29/282
摘要： A centrifugal multiblade fan according to the present invention sucks air from one end side of an axial direction of a rotation axis to a radial inside, and blows the air to a radial outside. The centrifugal multiblade fan includes a plurality of blades located around the rotation axis. Each blade has a leading edge positioned at the radial inside, and a trailing edge positioned at a radial outside. The leading edge of each blade has an edge shape with a radius of curvature of 0.2 mm or less, for example.
摘要翻译： 根据本发明的离心式多叶片风扇将空气从旋转轴线的轴向的一端侧吸收到径向内侧，并将空气吹送到径向外侧。 离心多叶片风扇包括围绕旋转轴线定位的多个叶片。 每个叶片具有位于径向内部的前缘，以及位于径向外侧的后缘。 每个叶片的前缘具有例如曲率半径为0.2mm或更小的边缘形状。
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公开(公告)号：US08011891B2
公开(公告)日：2011-09-06
申请号：US11715743
申请日：2007-03-08
申请人： Toshinori Ochiai , Masaharu Sakai , Hideki Seki
发明人： Toshinori Ochiai , Masaharu Sakai , Hideki Seki
IPC分类号： F04D29/28
CPC分类号： F04D29/282
摘要： A centrifugal multiblade fan according to the present invention sucks air from one end side of an axial direction of a rotation axis to a radial inside, and blows the air to a radial outside. The centrifugal multiblade fan includes a plurality of blades located around the rotation axis. Each blade has a leading edge positioned at the radial inside, and a trailing edge positioned at a radial outside. The leading edge of each blade has an edge shape with a radius of curvature of 0.2 mm or less, for example.
摘要翻译： 根据本发明的离心式多叶片风扇将空气从旋转轴线的轴向的一端侧吸收到径向内侧，并将空气吹送到径向外侧。 离心多叶片风扇包括围绕旋转轴线定位的多个叶片。 每个叶片具有位于径向内部的前缘，以及位于径向外侧的后缘。 每个叶片的前缘具有例如曲率半径为0.2mm或更小的边缘形状。
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公开(公告)号：US08167562B2
公开(公告)日：2012-05-01
申请号：US12215669
申请日：2008-06-27
IPC分类号： F03B3/12
CPC分类号： F04D29/662 , F04D29/282
摘要： A centrifugal fan includes a plurality of blades, a first wall disposed at first axial ends of the blades, and a second wall disposed at second axial ends of the blades and having a shaft portion at a center. At least one of the first wall and the second wall has a cutout portion configured to control balance.
摘要翻译： 离心风扇包括多个叶片，设置在叶片的第一轴向端部处的第一壁和设置在叶片的第二轴向端部处并且在中心具有轴部分的第二壁。 第一壁和第二壁中的至少一个具有被配置为控制平衡的切口部分。
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公开(公告)号：US20090004007A1
公开(公告)日：2009-01-01
申请号：US12215669
申请日：2008-06-27
CPC分类号： F04D29/662 , F04D29/282
摘要： A centrifugal fan includes a plurality of blades, a first wall disposed at first axial ends of the blades, and a second wall disposed at second axial ends of the blades and having a shaft portion at a center. At least one of the first wall and the second wall has a cutout portion configured to control balance.
摘要翻译： 离心风扇包括多个叶片，设置在叶片的第一轴向端部处的第一壁和设置在叶片的第二轴向端部处并且在中心具有轴部分的第二壁。 第一壁和第二壁中的至少一个具有被配置为控制平衡的切口部分。
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公开(公告)号：US09186954B2
公开(公告)日：2015-11-17
申请号：US13363577
申请日：2012-02-01
申请人： Toshinori Ochiai
发明人： Toshinori Ochiai
CPC分类号： B60H1/00471 , B60H2001/00085 , F04D25/166 , F04D29/281 , F04D29/424
摘要： A blower unit has a scroll casing having a first intake port and a second intake port; a first fan drawing air flowing from the first intake port; a second fan coaxially arranged with the first fan and drawing air flowing from the second intake port; a fan motor having a main body and a rotation shaft driven by the main body; and a blower cover arranged to face and cover one of the first intake port and the second intake port. The fan motor is fixed to the blower cover at a position facing the one of the first intake port and the second intake port.
摘要翻译： 鼓风机单元具有具有第一进气口和第二进气口的涡旋壳体; 抽出从第一进气口流出的空气的第一风扇; 与第一风扇同轴布置的第二风扇和从第二进气口流出的抽吸空气; 风扇马达，其具有主体和由主体驱动的旋转轴; 以及鼓风机盖，布置成面对并覆盖第一进气口和第二进气口中的一个。 风扇马达在面向第一进气口和第二进气口中的一个的位置处固定到鼓风机盖。
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公开(公告)号：US20120207593A1
公开(公告)日：2012-08-16
申请号：US13363577
申请日：2012-02-01
申请人： Toshinori Ochiai
发明人： Toshinori Ochiai
CPC分类号： B60H1/00471 , B60H2001/00085 , F04D25/166 , F04D29/281 , F04D29/424
摘要： A blower unit has a scroll casing having a first intake port and a second intake port; a first fan drawing air flowing from the first intake port; a second fan coaxially arranged with the first fan and drawing air flowing from the second intake port; a fan motor having a main body and a rotation shaft driven by the main body; and a blower cover arranged to face and cover one of the first intake port and the second intake port. The fan motor is fixed to the blower cover at a position facing the one of the first intake port and the second intake port.
摘要翻译： 鼓风机单元具有具有第一进气口和第二进气口的涡旋壳体; 抽出从第一进气口流出的空气的第一风扇; 与第一风扇同轴布置的第二风扇和从第二进气口流出的抽吸空气; 风扇马达，其具有主体和由主体驱动的旋转轴; 以及鼓风机盖，布置成面对并覆盖第一进气口和第二进气口中的一个。 风扇马达在面向第一进气口和第二进气口中的一个的位置处固定到鼓风机盖。
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