公开(公告)号：US08512004B2

公开(公告)日：2013-08-20

申请号：US12668158

申请日：2008-07-11

申请人： Suguru Nakagawa ,  Zhiming Zheng

发明人： Suguru Nakagawa ,  Zhiming Zheng

IPC分类号： F01D5/20

CPC分类号： F04D29/384 ,  F04D29/667 ,  F05D2240/307

摘要： A propeller fan has a gap between a bellmouth and each blade tip. A leakage flow is thus produced from a positive pressure surface of a blade toward a negative pressure surface of the blade via the gap. The leakage flow develops while flowing from the leading edge of each blade toward the trailing edge, thus forming a blade tip vortex. This increases blowing noise and raises the input of the fan motor. In order to suppress the blade tip vortex caused by the leakage flow, the present invention includes recessed portions and projected portions, which are alternately formed in a portion of a blade surface of each blade corresponding to the blade tip.

摘要翻译： 螺旋桨风扇在喇叭口和每个叶片尖之间具有间隙。 因此，通过间隙从叶片的正压面向叶片的负压面产生泄漏流。 在从每个叶片的前缘朝向后缘流动的同时，泄漏流动形成，从而形成叶片尖端涡流。 这增加了吹风噪音并提高了风扇电机的输入。 为了抑制由泄漏流引起的叶片尖端涡流，本发明包括凹入部分和突出部分，它们交替地形成在对应于叶片尖端的每个叶片的叶片表面的一部分中。

公开(公告)号：US07998231B2

公开(公告)日：2011-08-16

申请号：US12445987

申请日：2007-12-11

申请人： Zhiming Zheng ,  Yasuhiro Oda ,  Tooru Fujimoto

发明人： Zhiming Zheng ,  Yasuhiro Oda ,  Tooru Fujimoto

IPC分类号： B01D50/00

CPC分类号： A61L9/16 ,  A61L2209/14 ,  B01D46/0023 ,  B01D46/0028 ,  B01D46/0032 ,  B01D2273/30 ,  B01D2279/50 ,  F24F3/1603 ,  F24F2001/0096 ,  F24F2003/1628 ,  F24F2221/14

摘要： An air purifier includes a housing, a centrifugal fan and an air purifying filter. The fan is substantially centered in the housing. The fan has a rotary shaft extending in a depth direction of the air purifier and a fan inlet port facing frontward. Air suctioned by the fan is blown out in a direction perpendicular to the rotary shaft. The filter is aligned with the fan along the direction perpendicular to the rotary shaft. An air inlet port is disposed in front of the fan so as to communicate with the fan inlet port. When the fan rotates, air is suctioned into the air purifier via the air inlet port. An air outlet port is arranged relative to the filter such that air purified by the filter is blown out of the air purifier through the air outlet port.

摘要翻译： 空气净化器包括壳体，离心风扇和空气净化过滤器。 风扇基本上位于壳体的中心。 风扇具有沿空气净化器的深度方向延伸的旋转轴和面向前方的风扇入口。 由风扇抽吸的空气沿与旋转轴垂直的方向吹出。 过滤器沿着与旋转轴垂直的方向与风扇对准。 风扇前方设有一个进风口，以与风扇进气口连通。 当风扇旋转时，空气经由进气口被吸入空气净化器。 空气出口相对于过滤器布置，使得由过滤器净化的空气通过空气出口从空气净化器吹出。

公开(公告)号：US20090266524A1

公开(公告)日：2009-10-29

申请号：US12159817

申请日：2006-12-25

申请人： Zhiming Zheng ,  Hiroshi Ohmae ,  Toshihiro Kizawa

发明人： Zhiming Zheng ,  Hiroshi Ohmae ,  Toshihiro Kizawa

IPC分类号： F28D15/00 ,  F28F13/12 ,  F24F7/007

CPC分类号： F24F1/0007 ,  F24F1/0014 ,  F24F1/0022 ,  F24F3/1603 ,  F24F2001/004

摘要： An air conditioner is disposed with a casing, a filter, an indoor heat exchanger, a blower, and a blowout passage. The casing includes a suction opening and a blowout opening. The filter is disposed downstream of the suction opening and transmits air. The indoor heat exchanger is disposed facing the filter downstream of the filter and performs heat exchange with air that passes through the indoor heat exchanger. The blower is disposed downstream of the indoor heat exchanger and generates a flow of air that is sucked in from the suction opening and is blown out from the blowout opening. The blowout passage includes an air introduction opening disposed facing and downstream of the indoor heat exchanger and guides air from the air introduction opening to the blowout opening. Additionally, the filter has an outer shape that is slanted with respect to the indoor heat exchanger.

摘要翻译： 空气调节器设置有壳体，过滤器，室内热交换器，鼓风机和吹出通道。 壳体包括吸入口和吹出口。 过滤器设置在吸入口的下游并且传送空气。 室内热交换器面向过滤器下游的过滤器，与通过室内热交换器的空气进行热交换。 鼓风机设置在室内热交换器的下游，产生从吸入口吸入的空气流，并从吹出口吹出。 吹出通道包括面向室内热交换器的下游并且将空气从空气引入开口引导到吹出口的空气引入开口。 此外，过滤器具有相对于室内热交换器倾斜的外形。

公开(公告)号：US20090255654A1

公开(公告)日：2009-10-15

申请号：US11992645

申请日：2006-09-25

申请人： Zhiming Zheng ,  Tadashi Ohnishi

发明人： Zhiming Zheng ,  Tadashi Ohnishi

IPC分类号： F28F13/12 ,  F04D29/66

CPC分类号： F24F1/0007 ,  F04D29/162 ,  F04D29/281 ,  F04D29/4213 ,  F04D29/667 ,  F24F1/0022 ,  F24F1/0047 ,  F24F1/0057

摘要： The present invention provides a centrifugal fan by which air velocity distribution in the height direction of impellers at a fan blow-out port is made uniform and running noise is reduced, and an air conditioner whose running noise is reduced by applying the centrifugal fan thereto. The centrifugal fan is provided with a hub for fixing the rotary shaft of a motor, a main plate formed on the outer circumference of the hub, a shroud disposed to be opposed to the main plate, which forms an air passage, a plurality of impellers disposed between the main plate and the shroud, and a bellmouth disposed at the suction side of the shroud. Projections or recesses are formed on the surface of the shroud facing the bellmouth, which projections or recesses form air streams flowing from the center of the shroud toward the outer circumference thereof along the surface when running a fan. The air conditioner has a thus constructed centrifugal fan mounted therein.

摘要翻译： 本发明提供一种离心式风扇，通过风扇吹出口的叶轮的高度方向的风速分布均匀，运转噪音降低，通过对其进行离心风扇的运转噪音减小的空调机。 离心风扇设有用于固定电动机的旋转轴的毂，形成在轮毂的外周上的主板，与形成空气通道的主板相对设置的罩，多个叶轮 设置在主板和护罩之间，并且设置在护罩的吸力侧的喇叭口。 在面向喇叭口的护罩的表面上形成有突起或凹部，当运行风扇时，这些突起或凹部形成从护罩的中心向其外周流动的空气流。 空调器具有安装在其中的如此构造的离心式风扇。

公开(公告)号：US07172387B2

公开(公告)日：2007-02-06

申请号：US10504271

申请日：2003-11-07

申请人： Jiro Yamamoto ,  Zhiming Zheng

发明人： Jiro Yamamoto ,  Zhiming Zheng

IPC分类号： F04D29/70

CPC分类号： F04D29/703

摘要： A fan guard includes a plurality of extending ribs extending from a blocking plate to an outer frame, a plurality of inner ribs arranged between the extending ribs and extending from the blocking plate to the substantial center in the radial direction, and a plurality of outer ribs arranged between the extending ribs and extending from the substantial center in the radial direction to the outer frame. The number of the inner ribs is set smaller than the number of the outer ribs. Hence, strength to prevent bending of the fan guard due to load application in the axial direction is ensured and increase in ventilating resistance of forced airflow (W) from a blower fan is suppressed.

摘要翻译： 风扇护罩包括从阻挡板延伸到外框架的多个延伸肋，布置在延伸肋之间并从阻挡板沿径向方向延伸到大致中心的多个内肋，以及多个外肋 布置在延伸肋之间并且从径向方向上的大致中心延伸到外框。 内肋的数量被设定为小于外肋的数量。 因此，确保了防止由于轴向施加负载引起的风扇护罩弯曲的强度，并且抑制了来自风扇的强制气流（W）的通风阻力的增加。

公开(公告)号：US08356659B2

公开(公告)日：2013-01-22

申请号：US12159817

申请日：2006-12-25

申请人： Zhiming Zheng ,  Hiroshi Ohmae ,  Toshihiro Kizawa

发明人： Zhiming Zheng ,  Hiroshi Ohmae ,  Toshihiro Kizawa

IPC分类号： F28F19/00 ,  F28F13/12 ,  F25D23/12 ,  B01D59/50

CPC分类号： F24F1/0007 ,  F24F1/0014 ,  F24F1/0022 ,  F24F3/1603 ,  F24F2001/004

摘要： An air conditioner is disposed with a casing, a filter, an indoor heat exchanger, a blower, and a blowout passage. The casing includes a suction opening and a blowout opening. The filter is disposed downstream of the suction opening and transmits air. The indoor heat exchanger is disposed facing the filter downstream of the filter and performs heat exchange with air that passes through the indoor heat exchanger. The blower is disposed downstream of the indoor heat exchanger and generates a flow of air that is sucked in from the suction opening and is blown out from the blowout opening. The blowout passage includes an air introduction opening disposed facing and downstream of the indoor heat exchanger and guides air from the air introduction opening to the blowout opening. Additionally, the filter has an outer shape that is slanted with respect to the indoor heat exchanger.

摘要翻译： 空气调节器设置有壳体，过滤器，室内热交换器，鼓风机和吹出通道。 壳体包括吸入口和吹出口。 过滤器设置在吸入口的下游并且传送空气。 室内热交换器面向过滤器下游的过滤器，与通过室内热交换器的空气进行热交换。 鼓风机设置在室内热交换器的下游，产生从吸入口吸入的空气流，并从吹出口吹出。 吹出通道包括面向室内热交换器的下游并且将空气从空气引入开口引导到吹出口的空气引入开口。 此外，过滤器具有相对于室内热交换器倾斜的外形。

公开(公告)号：US20090114377A1

公开(公告)日：2009-05-07

申请号：US11632167

申请日：2005-07-13

申请人： Zhiming Zheng ,  Hyunyoung Kim ,  Shun Yoshioka ,  Hirokazu Fujino

发明人： Zhiming Zheng ,  Hyunyoung Kim ,  Shun Yoshioka ,  Hirokazu Fujino

IPC分类号： F28F13/12

CPC分类号： F24F1/0033 ,  F24F1/0007 ,  F24F1/0022 ,  F24F1/0057 ,  F24F1/0059 ,  F24F13/30

摘要： A centrifugal blower is arranged in the casing so as to extend its axis of rotation along the depth direction of an air conditioner. A pair of heat exchangers are arranged on the right and left sides of the centrifugal fan so as to superimpose on the centrifugal fan when viewed from the direction perpendicularly intersecting the axis of rotation of the centrifugal fan. In other words, each heat exchanger is arranged symmetrically with respect to a vertical plane including the axis of rotation of the centrifugal fan. Accordingly, the centrifugal fan and the heat exchanger do not overlap in the depth direction of the air conditioner in the casing. Thus, the air conditioner can be made compact in the depth direction.

摘要翻译： 离心鼓风机布置在壳体中，以沿着空调的深度方向延伸其旋转轴线。 离心式风扇的左右两侧配置有一对热交换器，从与离心风扇的旋转轴线垂直的方向观察时，与离心风扇重叠。 换句话说，每个热交换器相对于包括离心风扇的旋转轴线的垂直平面对称地布置。 因此，离心风扇和热交换器在壳体的空调机的深度方向上不重叠。 因此，空调可以在深度方向上紧凑。

公开(公告)号：US08784060B2

公开(公告)日：2014-07-22

申请号：US12679790

申请日：2008-11-26

申请人： Toru Iwata ,  Zhiming Zheng

发明人： Toru Iwata ,  Zhiming Zheng

IPC分类号： F04D29/28

CPC分类号： F04D29/30 ,  F04D29/282

摘要： A centrifugal fan has a circular main plate driven and rotated by a motor rotary shaft, a plurality of blades fixed to an outer circumferential portion of the main plate and spaced apart at predetermined intervals in a circumferential direction of the main plate, and a side plate attached to ends of the blades opposite to the main plate. An air inlet port is formed at the center of the side plate. The side plate inclines outward in centrifugal directions from the air inlet port and has an arcuate cross section with a predetermined radius of curvature. A dead water region reducing space is formed between the blades and the side plate. The dead water region reducing space forms a smooth flow between the two surfaces of each blade, bringing about desirable blade performance.

摘要翻译： 离心风扇具有由电动机旋转轴驱动旋转的圆形主板，固定在主板的外周部并沿主板的圆周方向以规定间隔隔开的多个叶片，侧板 连接到与主板相对的刀片的端部。 进气口形成在侧板的中心。 侧板从空气入口沿离心方向向外倾斜，并且具有预定曲率半径的弓形横截面。 在叶片和侧板之间形成有死水区域缩小空间。 死水区域减少空间在每个叶片的两个表面之间形成平滑的流动，带来期望的叶片性能。

公开(公告)号：US20100293907A1

公开(公告)日：2010-11-25

申请号：US12445987

申请日：2007-12-11

申请人： Zhiming Zheng ,  Yasuhiro Oda ,  Tooru Fujimoto

发明人： Zhiming Zheng ,  Yasuhiro Oda ,  Tooru Fujimoto

IPC分类号： B01D50/00

CPC分类号： A61L9/16 ,  A61L2209/14 ,  B01D46/0023 ,  B01D46/0028 ,  B01D46/0032 ,  B01D2273/30 ,  B01D2279/50 ,  F24F3/1603 ,  F24F2001/0096 ,  F24F2003/1628 ,  F24F2221/14

摘要： An air purifier includes a housing, a centrifugal fan and an air purifying filter. The fan is substantially centered in the housing. The fan has a rotary shaft extending in a depth direction of the air purifier and a fan inlet port facing frontward. Air suctioned by the fan is blown out in a direction perpendicular to the rotary shaft. The filter is aligned with the fan along the direction perpendicular to the rotary shaft. An air inlet port is disposed in front of the fan so as to communicate with the fan inlet port. When the fan rotates, air is suctioned into the air purifier via the air inlet port. An air outlet port is arranged relative to the filter such that air purified by the filter is blown out of the air purifier through the air outlet port.

摘要翻译： 空气净化器包括壳体，离心风扇和空气净化过滤器。 风扇基本上位于壳体的中心。 风扇具有沿空气净化器的深度方向延伸的旋转轴和面向前方的风扇入口。 由风扇抽吸的空气沿与旋转轴垂直的方向吹出。 过滤器沿着与旋转轴垂直的方向与风扇对准。 风扇前方设有一个进风口，以与风扇进气口连通。 当风扇旋转时，空气经由进气口被吸入空气净化器。 空气出口相对于过滤器布置，使得由过滤器净化的空气通过空气出口从空气净化器吹出。

公开(公告)号：US20100322779A1

公开(公告)日：2010-12-23

申请号：US12668158

申请日：2008-07-11

申请人： Suguru Nakagawa ,  Zhiming Zheng

发明人： Suguru Nakagawa ,  Zhiming Zheng

IPC分类号： F03B3/12

CPC分类号： F04D29/384 ,  F04D29/667 ,  F05D2240/307

摘要： A propeller fan has a gap between a bellmouth and each blade tip. A leakage flow is thus produced from a positive pressure surface of a blade toward a negative pressure surface of the blade via the gap. The leakage flow develops while flowing from the leading edge of each blade toward the trailing edge, thus forming a blade tip vortex. This increases blowing noise and raises the input of the fan motor. In order to suppress the blade tip vortex caused by the leakage flow, the present invention includes recessed portions and projected portions, which are alternately formed in a portion of a blade surface of each blade corresponding to the blade tip.

摘要翻译： 螺旋桨风扇在喇叭口和每个叶片尖之间具有间隙。 因此，通过间隙从叶片的正压面向叶片的负压面产生泄漏流。 在从每个叶片的前缘朝向后缘流动的同时，泄漏流动形成，从而形成叶片尖端涡流。 这增加了吹风噪音并提高了风扇电机的输入。 为了抑制由泄漏流引起的叶片尖端涡流，本发明包括凹入部分和突出部分，它们交替地形成在对应于叶片尖端的每个叶片的叶片表面的一部分中。