公开(公告)号：US06733236B2

公开(公告)日：2004-05-11

申请号：US10176889

申请日：2002-06-21

Applicant: Siegfried Sumser ,  Peter Fledersbacher ,  Helmut Finger ,  Helmut Daudel ,  Gebhard Bopp

Inventor： Siegfried Sumser ,  Peter Fledersbacher ,  Helmut Finger ,  Helmut Daudel ,  Gebhard Bopp

IPC: F04D2944

CPC classification number: F02B33/44 ,  F01D9/06 ,  F02B37/00 ,  F04D25/04 ,  F05D2220/40 ,  F05D2250/231 ,  F05D2250/311 ,  F05D2250/314 ,  Y02T10/144

Abstract: A compressor in a turbocharger has a compressor impeller in an inflow passage and an outflow region downstream of the compressor-impeller outlet edge. The outflow region is assigned a connecting passage, a stabilizing chamber and an outflow passage, the connecting passage being arranged with a lateral offset with respect to a longitudinal center axis of the stabilizing chamber.

Abstract translation: 涡轮增压器中的压缩机具有在流入通道中的压缩机叶轮和压缩机 - 叶轮出口边缘下游的流出区域。 流出区域分配有连接通道，稳定室和流出通道，连接通道相对于稳定室的纵向中心轴线偏移地布置。

公开(公告)号：US06685430B2

公开(公告)日：2004-02-03

申请号：US10092206

申请日：2002-03-05

Applicant: Thomas Chapman

Inventor： Thomas Chapman

IPC: F04D2944

CPC classification number: F04D29/282 ,  F04D17/165 ,  F04D25/06 ,  F04D25/0606 ,  F04D29/582

Abstract: This invention is characterized by a very compact blower assembly architecture designed to operate at low Reynolds numbers. The assembly includes an impeller with forward-curved blades and a hub that is shaped to minimize the overall package volume of the assembly. The impeller is driven by a low-power, brushed, direct-current motor. A shroud part includes a generally cylindrical inlet that directs the air into the impeller, and a surface that forces the air leaving the impeller to turn from a generally radial and tangential direction to a generally axial and tangential direction. The shroud part directs the air into a single stage of stator blades that reduces the tangential component of the air velocity and produces a static pressure rise.

Abstract translation: 本发明的特征在于设计成以低雷诺数操作的非常紧凑的鼓风机组件结构。 组件包括具有前弯曲叶片的叶轮和成形为使组件的整体包装体积最小化的轮毂。 叶轮由低功率，有刷直流电动机驱动。 护罩部分包括将空气引导到叶轮中的大致圆柱形的入口，以及迫使离开叶轮的空气从大致径向切线方向转动到大致轴向和切向的表面。 护罩部分将空气引导到单级定子叶片中，其减小空气速度的切向分量并产生静压力升高。

公开(公告)号：US06669436B2

公开(公告)日：2003-12-30

申请号：US10086744

申请日：2002-02-28

Applicant: Zheji Liu

Inventor： Zheji Liu

IPC: F04D2944

CPC classification number: F04D29/444 ,  F04D29/665

Abstract: A gas compression apparatus and method according to which an impeller rotates to flow fluid through a casing, and a plurality of vanes are mounted on a plate in the casing. A series of cells are formed in the plate to form an array of acoustic resonators to attenuate acoustic energy generated by the impeller.

Abstract translation: 一种气体压缩装置和方法，其中叶轮旋转以使流体流过壳体，并且多个叶片安装在壳体中的板上。 在板中形成一系列电池以形成声谐振器阵列，以衰减由叶轮产生的声能。

公开(公告)号：US06585485B2

公开(公告)日：2003-07-01

申请号：US09862330

申请日：2001-05-23

Applicant: Sen-Yung Lee ,  Shueei-Muh Lin ,  Hsin-Mao Hsieh

Inventor： Sen-Yung Lee ,  Shueei-Muh Lin ,  Hsin-Mao Hsieh

IPC: F04D2944

CPC classification number: F04D29/4213 ,  F04D29/4226 ,  F04D29/441 ,  F05D2250/51

Abstract: An air flow guide device for mounting on a heat dispensing fan includes a U-shaped frame and each of the three sides of the frame has a curve outer surface. A plate is connected between two distal ends of the frame and extends inclinedly from a top edge of the two distal ends of the frame, and a slot is defined between the two distal ends of the frame and the plate. Air flow smoothly flows over the curve smooth surfaces and is sucked by the fan. The plate prevents the exhausted air from being sucked by the fan.

公开(公告)号：US06485259B2

公开(公告)日：2002-11-26

申请号：US09911679

申请日：2001-07-24

Applicant: Robert C. Berfield

Inventor： Robert C. Berfield

IPC: F04D2944

CPC classification number: A47L9/0081 ,  A47L5/22

Abstract: A vacuum cleaner includes a driven impeller that moves working air for the vacuum cleaner. A first housing includes a first wall and a second housing includes a second wall opposite the first wall, and an outlet for the working air. The impeller rotates and draws the working air through an opening and directs the working air radially outwardly toward the first wall and then through an annular passage formed between the first wall and the second wall. The annular passage restricts the flow of working air to provide back pressure on the impeller.

Abstract translation: 真空吸尘器包括一个驱动叶轮，该驱动叶轮移动真空吸尘器的工作空气。 第一壳体包括第一壁，第二壳体包括与第一壁相对的第二壁和用于工作空气的出口。 叶轮旋转并通过开口抽吸工作空气，并将工作空气径向向外朝向第一壁引导，然后通过形成在第一壁和第二壁之间的环形通道。 环形通道限制工作空气的流动以在叶轮上提供背压。

公开(公告)号：US06371724B1

公开(公告)日：2002-04-16

申请号：US09862313

申请日：2001-05-23

Applicant: Yoshihiro Nagaoka ,  Sadashi Tanaka ,  Yukiji Iwase ,  Michiaki Ida ,  Hirotoshi Ishimaru ,  Saburo Iwasaki ,  Yoshiharu Ueyama ,  Tetuya Yoshida

Inventor： Yoshihiro Nagaoka ,  Sadashi Tanaka ,  Yukiji Iwase ,  Michiaki Ida ,  Hirotoshi Ishimaru ,  Saburo Iwasaki ,  Yoshiharu Ueyama ,  Tetuya Yoshida

IPC: F04D2944

Abstract: At a vaned diffuser or a volute casing of a centrifugal fluid machine, pressure pulsation and vibrating forces acting upon the diffuser or the volute casing are mitigated or cancelled so as to abate the noise from the centrifugal fluid machine. The fluid machine having an impeller 3 rotating about a rotating shaft 2 within a casing 1 and having a vaned diffuser 4 or volute 12 fixed to the casing 1 is constructed such that radius of the vane trailing edge of the impeller 3 and radius of the vane leading edge of the diffuser 4 or radius of the volute tongue is varied in the direction of axis of rotation and inclinations, on a meridional plane, of the vane trailing edge of the impeller 3 and the vane leading edge of the diffuser 4 or the volute tongue are set in the same orientation, thereby reduction in head and efficiency or occurrence of an axial thrust may be restrained to the extent possible to optimally abate the noise and pressure pulsation of the centrifugal fluid machine.

公开(公告)号：US06340287B1

公开(公告)日：2002-01-22

申请号：US08597995

申请日：1996-02-07

Applicant: Takashi Eino

Inventor： Takashi Eino

IPC: F04D2944

CPC classification number: F04D29/286 ,  F04D17/125 ,  F04D29/2222 ,  F04D29/30

Abstract: By changing a vane height to produce different vanes from master vanes, different impellers are produced, and therefore there can be obtained an inexpensive and high-reliability multistage centrifugal compressor and an impellers therefor. An impeller for multistage centrifugal compressor, which is to be mounted on a rotary shaft, comprises a plurality of vanes disposed between a disk and a shroud and separated from one another equiangularly. By changing the vanes of the impeller only in height without changing the configuration, vanes can be obtained, and then a different impeller comprising the disk, a shroud and vanes is also obtained. Since a whole of the vane has a configuration identical to a part of the vane, these vane can be produced by a single pair of the pressing dies.

Abstract translation: 通过改变叶片高度以从主叶片产生不同的叶片，产生不同的叶轮，因此可以获得廉价且高可靠性的多级离心压缩机及其叶轮。 要安装在旋转轴上的用于多级离心式压缩机的叶轮包括多个叶片，其设置在圆盘和护罩之间并且等角地彼此分离。 通过仅改变叶轮的叶片而不改变构造，可以获得叶片，然后也获得包括盘，护罩和叶片的不同叶轮。 由于整个叶片具有与叶片的一部分相同的构造，所以这些叶片可以通过一对压模生产。

公开(公告)号：US06273677B1

公开(公告)日：2001-08-14

申请号：US09424786

申请日：1999-11-29

Applicant: Baogang Wang ,  Juergen Schill ,  Dieter Hellmann

Inventor： Baogang Wang ,  Juergen Schill ,  Dieter Hellmann

IPC: F04D2944

CPC classification number: F04D29/448 ,  F04D29/4273

Abstract: A centrifugal pump having an axial inlet and an inflow guide device mounted upstream of the impeller, which guide device is composed of several fixed guide vanes, which on the side facing the impeller each have an edge pointing in or opposite to the direction of rotation of the impeller. The edge pointing in or opposite to the direction of rotation may take the form of a swirl blade (8) which is formed on the guide vane (6) and located in the vicinity of the wall of the inlet (2), and which has a shorter radial length than the guide vane (6). This increases the efficiency of the pump and achieves an effect which increases the breadth of applicability of the pump.

Abstract translation: 一种离心泵，其具有安装在叶轮上游的轴向入口和流入引导装置，该导向装置由几个固定的导向叶片组成，该固定导向叶片在面向叶轮的一侧具有指向或相对于旋转方向 叶轮。 指向旋转方向或与旋转方向相反的边缘可以采取形成在导向叶片（6）上并位于入口（2）的壁附近的旋流叶片（8）的形式，并且具有 比导叶（6）短的径向长度。 这提高了泵的效率并且实现了增加泵的适用范围的效果。

公开(公告)号：US06193463B1

公开(公告)日：2001-02-27

申请号：US09343734

申请日：1999-06-30

Applicant: George A. Adeff ,  Christopher S. Marr

Inventor： George A. Adeff ,  Christopher S. Marr

IPC: F04D2944

CPC classification number: F04D29/023 ,  F04D29/4206 ,  F04D29/441 ,  F04D29/624 ,  F05D2230/21

Abstract: A die cast compressor housing includes an outer shell having a partial outer circumferencial volute wall portion and a projection surrounding the circumference of an aperture in the shell that mates with an insert having a first portion with a substantially cylindrical outer wall that is received in the aperture in the outer shell and includes an air inlet. The insert has a second portion extending radially outwardly and including a mating projection for engagement with the outer shell projection to form an inner circumferencial volute wall portion. A backplate has a third projection adjacent its outer circumference that is received in a relief in the outer shell and completes the outer circumferncial volute wall portion. The outer shell projection has a first land engaging a second land on the mating projection, the first and second lands spirally descending relative to a datum and the relief has a third land in spaced relation to a fourth land on the third projection, the third and fourth lands spirally descending respectively relative to the datum.

Abstract translation: 压铸压缩机壳体包括具有部分外圆周状蜗壳壁部分的外壳和围绕壳体中的孔的圆周的突起，其与具有第一部分的插入件配合，所述第一部分具有基本上圆柱形的外壁，所述第一部分被容纳在孔中 在外壳中并且包括空气入口。 插入件具有径向向外延伸的第二部分，并且包括配合突起，用于与外壳突起接合以形成内圆周的蜗壳壁部分。 背板具有邻近其外圆周的第三突起，该第三突出部被容纳在外壳中的浮雕中，并且完成了外圆周的蜗壳壁部分。 所述外壳突起具有接合所述配合突起上的第二接合面的第一接合面，所述第一和第二接合部相对于基准面螺旋地下降，并且所述凸起具有与所述第三突出部上的第四接合部间隔开的第三接地部， 第四个土地分别相对于基准螺旋地下降。

公开(公告)号：US06830429B2

公开(公告)日：2004-12-14

申请号：US10224425

申请日：2002-08-21

Applicant: Masahiko Hirata

Inventor： Masahiko Hirata

IPC: F04D2944

CPC classification number: F04D29/582 ,  F04D29/441 ,  H01L23/467 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A small cooling fan includes a rotating fan body with a vane in a flat fan housing, and an air channel for backflow prevention. The air channel is provided outside of the vicinity of the tip of the vane of the rotating fan body, extends to an air outlet, and has an inner height larger than that of a fan chamber. This structure can prevent the backflow of the wind at the air outlet and reduce the loss of the static pressure, thereby increasing the airflow quantity in spite of the small size.

Abstract translation: 小型冷却风扇包括在平坦风扇壳体中具有叶片的旋转风扇主体和用于防回流的空气通道。 空气通道设置在旋转风扇主体的叶片的尖端附近，延伸到出气口，并且具有比风扇室大的内部高度。 这种结构可以防止出风口处的风回流并且减小静压力的损失，从而尽管尺寸小而增加了气流量。