公开(公告)号：US20120128486A1

公开(公告)日：2012-05-24

申请号：US13237954

申请日：2011-09-21

Applicant: Hsin-Chen LIN ,  Hsiang-Jung HUANG

Inventor： Hsin-Chen LIN ,  Hsiang-Jung HUANG

IPC: F01D5/14 ,  F01D25/24

CPC classification number: F04D25/0613 ,  F04D17/16 ,  F04D17/162 ,  F04D29/162 ,  F04D29/30

Abstract: A centrifugal fan includes an impeller, a motor and a case. The impeller includes a hub and multiple blades. The hub has a center. The blades are connected to the hub and have all respective outmost edges collectively define a circle with the center and a radius R. Each blade has at least one concave cutout. Each concave cutout is equipped with a depth of greater than 0.5 millimeters and an obtuse angle of less than 170 degrees, wherein the obtuse angle is an included angle between an inner edge of the concave cutout and an outer edge of the blade. The motor is secured to the huh and drives the impeller to rotate. The case houses the impeller and the motor.

Abstract translation: 离心风扇包括叶轮，马达和壳体。 叶轮包括一个轮毂和多个叶片。 中心有一个中心。 叶片连接到轮毂并且具有所有相应的最外边缘共同限定具有中心和半径R的圆。每个叶片具有至少一个凹形切口。 每个凹形切口配备有大于0.5毫米的深度和小于170度的钝角，其中钝角是凹形切口的内边缘和叶片的外边缘之间的夹角。 电机固定在。h上，驱动叶轮旋转。 外壳装有叶轮和电机。

公开(公告)号：US20120121407A1

公开(公告)日：2012-05-17

申请号：US13293155

申请日：2011-11-10

Applicant: Takamasa YAMASHITA

Inventor： Takamasa YAMASHITA

IPC: F01D25/28

CPC classification number: F04D29/4226 ,  F04D17/162 ,  F04D25/0613

Abstract: A blower fan includes a housing arranged to accommodate an impeller, wherein an upper surface portion of the housing includes a motor fixing portion, a peripheral portion, and a plurality of ribs interconnecting the motor fixing portion and the peripheral portion, the upper surface portion including a plurality of air intake ports defined between the motor fixing portion, the peripheral portion and the plurality of ribs being arranged to oppose the impeller; and the peripheral portion includes a peripheral low portion arranged to surround or substantially surround outer peripheries of the air intake ports and positioned lower than upper surfaces of the plurality of ribs and a peripheral high portion provided with rib extension portions continuously extending from the plurality of ribs and positioned higher than an upper surface of the peripheral low portion.

Abstract translation: 鼓风机包括：外壳，其布置成容纳叶轮，其中壳体的上表面部分包括马达固定部分，周边部分和互连马达固定部分和周边部分的多个肋，所述上表面部分包括 限定在马达固定部分，周边部分和多个肋之间的多个进气口布置成与叶轮相对; 并且所述周边部分包括外围低部分，其被布置成围绕或基本上围绕所述进气口的外周并且定位成比所述多个肋的上表面低;以及周边高部，其具有从所述多个肋连续延伸的肋延伸部 并且定位成高于周边低部的上表面。

公开(公告)号：US20090142179A1

公开(公告)日：2009-06-04

申请号：US11959314

申请日：2007-12-18

Applicant: CHING-BAI HWANG ,  ZHI-HUI ZHAO ,  WEN-JIE ZHANG

Inventor： CHING-BAI HWANG ,  ZHI-HUI ZHAO ,  WEN-JIE ZHANG

IPC: F01D3/02

CPC classification number: F04D17/105 ,  F04D17/162 ,  F04D25/0613

Abstract: A centrifugal fan includes a fan frame (20), and a stator (30) and a rotor (40) received in the fan frame. The fan frame includes a bottom base (22), an opposite top cover (21) and a side wall (23) interconnecting the bottom base and the top cover. A first air inlet (24a) is defined in the top cover and a second air inlet (24b) is defined in the bottom base. The rotor includes a hub (41) and a plurality of blades (42) extending from an outer periphery of the hub. An air flow channel (48) is formed between an outer periphery of the blades and the side wall of the fan frame. A cylindrical wall (26, 26a) is formed around one of the first air inlet and the second air inlet to guide airflow from the first and second air inlets into the air flow channel and block the airflow in the air flow channel from flowing back towards the first and second air inlets.

Abstract translation: 离心风扇包括风扇框架（20）和收纳在风扇框架中的定子（30）和转子（40）。 风扇框架包括底部底座（22），相对的顶盖（21）和将底部底部与顶盖相互连接的侧壁（23）。 第一空气入口（24a）限定在顶盖中，并且第二空气入口（24b）限定在底部底部中。 转子包括轮毂（41）和从毂的外周延伸的多个叶片（42）。 在叶片的外周和风扇框架的侧壁之间形成有气流通道（48）。 围绕第一空气入口和第二空气入口中的一个形成圆柱形壁（26,26a），以将来自第一和第二空气入口的气流引导到空气流动通道中并阻挡空气流动通道中的空气流向 第一和第二个进气口。

公开(公告)号：US20090123285A1

公开(公告)日：2009-05-14

申请号：US12304509

申请日：2007-08-23

Applicant: Kouji Sinzaki

Inventor： Kouji Sinzaki

IPC: F04D29/38

CPC classification number: F04D29/30 ,  F04D17/162 ,  F04D29/281

Abstract: A double inlet centrifugal fan includes an impeller and fan inlet port. The impeller has a main plate connected to the drive shaft in a fan casing, fan side plates, and a plurality of blades between the main plate and each of the fan side plates. The fan inlet port has an opening corresponding to the inner diameter of the blades. The blades on the side of the larger pressure loss in the suction air passage to the fan inlet port have a smaller inner diameter than the blades on the side of the smaller pressure loss. This equalizes the total pressure increase in the blades along the drive shaft, resulting in a compact double inlet centrifugal fan capable of supplying the required air flow.

Abstract translation: 双入口离心风机包括叶轮和风扇进风口。 叶轮具有与风扇壳体中的驱动轴连接的主板，风扇侧板以及主板和风扇侧板之间的多个叶片。 风扇入口具有对应于叶片内径的开口。 在风扇入口的吸入空气通道中的压力损失较大的一侧的叶片具有比在较小压力损失侧的叶片更小的内径。 这使得沿着驱动轴的叶片中的总压力增加相等，从而形成能够供应所需空气流的紧凑型双入口离心风扇。

公开(公告)号：US06514052B2

公开(公告)日：2003-02-04

申请号：US09822568

申请日：2001-03-30

Applicant: Peter K. Bostwick

Inventor： Peter K. Bostwick

IPC: F04B3906

CPC classification number: F04D17/105 ,  F04D17/162 ,  F04D29/281 ,  H02K9/06

Abstract: A two sided radial fan draws cooling air into axially opposite ends of a dynamoelectric device drawing the flow of air into one axial end of the device and directing the flow of air over the device exterior surface, and drawing a second flow of air into an opposite axial end of the device and through the interior of the device before redirecting the second flow of air over the exterior of the device. The two sided fan thereby provides greater cooling efficiency to the device without significantly increasing the size of the fan or the device and without significantly increasing the costs or adding additional components to the device construction.

公开(公告)号：US20020141888A1

公开(公告)日：2002-10-03

申请号：US09822568

申请日：2001-03-30

Applicant: Emerson Electric Co.

Inventor： Peter K. Bostwick

IPC: F04B017/00 ,  F04B035/00

CPC classification number: F04D17/105 ,  F04D17/162 ,  F04D29/281 ,  H02K9/06

Abstract: A two sided radial fan draws cooling air into axially opposite ends of a dynamoelectric device drawing the flow of air into one axial end of the device and directing the flow of air over the device exterior surface, and drawing a second flow of air into an opposite axial end of the device and through the interior of the device before redirecting the second flow of air over the exterior of the device. The two sided fan thereby provides greater cooling efficiency to the device without significantly increasing the size of the fan or the device and without significantly increasing the costs or adding additional components to the device construction.

Abstract translation: 双向径向风扇将冷却空气抽吸到电动装置的轴向相对端，将空气流吸引到装置的一个轴向端部，并将空气流引导到装置外表面上，并将第二空气流引导到相反的 装置的轴向端部并且在将第二空气流转向装置的外部之前通过装置的内部。 因此，双面风扇对装置提供更高的冷却效率，而不会显着增加风扇或装置的尺寸，并且不会显着增加成本或向装置结构增加额外的部件。

公开(公告)号：US5980199A

公开(公告)日：1999-11-09

申请号：US900782

申请日：1997-07-25

Applicant: Alain Emile Godichon

Inventor： Alain Emile Godichon

IPC: F04D27/00 ,  F04D17/08 ,  F04D17/16 ,  F04D27/02 ,  F04D29/28 ,  F04D29/42 ,  F04D29/46

CPC classification number: F04D29/424 ,  F04D17/162 ,  F04D27/003

Abstract: A centrifugal blower apparatus suitable for industrial uses has a least a delivery outlet and at least two fluid inlets disposed on either side of a blower wheel suitable for being rotated by a drive system. Each inlet is associated with a respective control system for controlling the suction flow rte of fluid and is capable of establishing asymmetrical suction flow rates between the inlets. The inlets are fitted with control systems which differ in their mechanical structures and their characteristics concerning fineness of control.

Abstract translation: 适用于工业用途的离心式鼓风机装置具有至少一个输送出口，并且至少两个流体入口设置在鼓风机轮的任一侧上，适于由驱动系统旋转。 每个入口与相应的控制系统相关联，用于控制流体的吸入流量并且能够在入口之间建立不对称的吸入流速。 入口装有控制系统，其控制系统的机械结构和控制系统的特性与控制精度有关。

公开(公告)号：US5839397A

公开(公告)日：1998-11-24

申请号：US860278

申请日：1997-06-17

Applicant: Shigehisa Funabashi ,  Yoshihiro Takada ,  Masatoshi Watanabe ,  Shinichi Shimode ,  Yoshio Tanito ,  Sotaro Tanaka ,  Zenji Kaneko ,  Ichiro Hirami ,  Toshio Takishita ,  Shinichi Mihara

Inventor： Shigehisa Funabashi ,  Yoshihiro Takada ,  Masatoshi Watanabe ,  Shinichi Shimode ,  Yoshio Tanito ,  Sotaro Tanaka ,  Zenji Kaneko ,  Ichiro Hirami ,  Toshio Takishita ,  Shinichi Mihara

IPC: B60K11/04 ,  B60K11/08 ,  F01P1/00 ,  F01P5/02 ,  F01P5/06 ,  F01P11/10 ,  F04D17/16 ,  F04D29/58 ,  F04D29/66 ,  F01P7/14

CPC classification number: E02F9/0866 ,  B60K11/04 ,  B60K11/08 ,  F01P11/10 ,  F01P5/02 ,  F04D17/162 ,  F04D29/582 ,  F04D29/664 ,  F01P2001/005

Abstract: First cooling air (50) enters an engine room (1) through a cooling air inlet port (7a) from the exterior of the engine room (1), and is throttled by a suction tube (8a) after passing heat exchangers such as an intercooler (6a), an oil cooler (6b) and a radiator (6c), followed by entering a centrifugal fan (4). The first cooling air (50) is then blown off toward an outer circumference of the centrifugal fan (4). Second cooling air enters the engine room (1) through cooling air inlet ports (7b, 7b) from the exterior of the engine room (1), and flows around an engine (5), various electric equipments such as an alternator (10), and an oil pan (14) while cooling them. The second cooling air is then throttled by a suction tube (8b) before entering the centrifugal fan (4), and blown off toward the outer circumference of the centrifugal fan (4). Two streams of the first and second cooling air (50, 51) are discharged to the exterior through an exhaust port (9). This arrangement enhances the degree of sealing on the engine (5) side to reduce noise, and improves the effect of cooling the electric equipments (10) for higher reliability of the electric equipments (10).

Abstract translation: PCT No.PCT / JP96 / 03025 Sec。 371日期：1997年6月17日 102（e）日期1997年6月17日PCT 1996年10月18日PCT PCT。 公开号WO97 / 14874 日期1997年04月24日第一冷却空气（50）通过从发动机室（1）的外部的冷却空气入口（7a）进入发动机室（1），并在通过后被吸管（8a）节流 诸如中间冷却器（6a），油冷却器（6b）和散热器（6c）之类的热交换器，随后进入离心风扇（4）。 然后将第一冷却空气（50）吹向离心式风扇（4）的外周。 第二冷却空气通过来自发动机室（1）的外部的冷却空气入口（7b，7b）进入发动机室（1），并且在发动机（5）周围流动，诸如交流发电机（10）等各种电气设备， 和油盘（14），同时冷却它们。 然后在进入离心风扇（4）之前，第二冷却空气被吸入管（8b）节流，并且向离心式风扇（4）的外周吹出。 第一和第二冷却空气（50,51）的两股流经排气口（9）排出到外部。 由此，能够提高发动机（5）侧的密封度，降低噪音，提高电气设备（10）的冷却效果，从而提高电气设备（10）的可靠性。

公开(公告)号：US3868992A

公开(公告)日：1975-03-04

申请号：US33368473

申请日：1973-02-20

Applicant: CATERPILLAR TRACTOR CO

Inventor： GETZ MARVIN G ,  BENTZ ERWIN J H

IPC: E02F9/00 ,  B60K11/04 ,  B60K11/08 ,  E02F9/08 ,  F01P5/02 ,  F02M37/20 ,  F04D17/10 ,  F24H3/06

CPC classification number: E02F9/0866 ,  B60K11/04 ,  B60K11/08 ,  F01P5/02 ,  F04D17/162

Abstract: A cooling system, mounted on the rearward end of a tractor, comprises a pair of fans attached to a common drive shaft disposed on the longitudinal axis of the tractor and a pair of vertically disposed and laterally spaced radiators. A vertically disposed baffle is connected between the radiators to define separate chambers for receiving air from the fans.

Abstract translation: 安装在拖拉机后端的冷却系统包括一对风扇，其连接到设置在拖拉机的纵向轴线上的公共驱动轴和一对垂直设置和横向间隔开的散热器。 在散热器之间连接有垂直设置的挡板，以限定用于从风扇接收空气的分开的室。

公开(公告)号：US3856431A

公开(公告)日：1974-12-24

申请号：US40910873

申请日：1973-10-24

Applicant: SINGER CO

Inventor： TUCKER C

IPC: F04D29/44 ,  F04D17/16 ,  F04D29/42 ,  F01D25/24

CPC classification number: F04D29/4226 ,  F04D17/162

Abstract: An expanding scroll-type blower unit with a fan wheel which discharges air peripherally from an encasing housing and has axial air intakes is provided with sides diverging toward an exit opening that is parallel to the blower axis, and two such blower units are arranged side by side in axially alignment with a motor therebetween operatively connected to both wheels.

Abstract translation: 具有风扇轮的膨胀涡旋式鼓风机单元，其具有从外壳排出空气并具有轴向进气口的风扇叶片，其朝向与鼓风机轴线平行的出口开口朝向侧面扩散，并且两个这样的鼓风机单元被侧排布置 一侧与其间可操作地连接到两个轮的电动机轴向对准。