EP2090787B1 - Nabenstruktur für lüfterlaufrad und lüfterlaufrad damit - Google Patents

Nabenstruktur für lüfterlaufrad und lüfterlaufrad damit Download PDF

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Publication number
EP2090787B1
EP2090787B1 EP07831348.3A EP07831348A EP2090787B1 EP 2090787 B1 EP2090787 B1 EP 2090787B1 EP 07831348 A EP07831348 A EP 07831348A EP 2090787 B1 EP2090787 B1 EP 2090787B1
Authority
EP
European Patent Office
Prior art keywords
boss
vibration isolation
isolation member
hub
cylindrical portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP07831348.3A
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English (en)
French (fr)
Other versions
EP2090787A1 (de
EP2090787A4 (de
Inventor
Masahito Higashida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daikin Industries Ltd
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Daikin Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daikin Industries Ltd filed Critical Daikin Industries Ltd
Publication of EP2090787A1 publication Critical patent/EP2090787A1/de
Publication of EP2090787A4 publication Critical patent/EP2090787A4/de
Application granted granted Critical
Publication of EP2090787B1 publication Critical patent/EP2090787B1/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
    • F04D29/283—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis rotors of the squirrel-cage type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations

Definitions

  • the present invention relates to a boss structure, attachable pivotally to a rotating shaft of a motor for driving, rotationally, an impeller of a blower.
  • Patent Document 1 JP-A No. 2003-269382
  • boss structure of an impeller of a blower that is capable of improving the strength of the impeller and an impeller of a blower equipped with the boss structure.
  • the invention provides a boss structure attachable pivotally to a rotating shaft of a motor for driving, rotationally, an impeller of a blower, the boss structure comprising: a hub that includes a cylindrical portion that extends in the rotating shaft direction, a vibration isolation member that sandwiches the cylindrical portion from both sides in a radial direction; a first boss that supports an inner cylinder portion of the vibration isolation member, which inner cylinder portion contacts the inner peripheral side, in the radial direction, of the cylindrical portion, the rotating shaft being attachable pivotally to the first boss; and a second boss that supports an outer cylinder portion of the vibration isolation member, which outer cylinder portion contacts the outer peripheral side, in the radial direction, of the cylindrical portion, the second boss being arranged to rotate integrally with the first boss, wherein the first boss and the second boss form a space that houses the vibration isolation member and sandwiches the cylindrical portion of the hub.
  • the second boss is optionally integrally molded with the first boss.
  • the number of parts configuring the boss structure can be reduced.
  • the first boss and the second boss form a space that houses the vibration isolation member.
  • the vibration isolation member comprises a rubber material
  • the rubber material can, in a state where the cylindrical portion of the hub has been disposed in a predetermined position in this space, be injected into or fill the space and be vulcanization-molded
  • the vibration isolation member comprises a resin material that has elasticity
  • the resin material can, in a state where the cylindrical portion of the hub has been disposed in a predetermined position in this space, be injected into or fill the space and be insert-molded.
  • the material configuring the vibration isolation member can be injected into or fill the space that the first boss and the second boss form, such that the vibration isolation member can be integrally molded with the first boss, the second boss and the hub, so manufacture is easy.
  • an opening that allows the space to be communicated with the outside is formed in the first boss and/or in the second boss.
  • the opening that allows the space that houses the vibration isolation member to communicate with the outside is formed, such that when the vibration isolation member is to be integrally molded with the first boss, the second boss and the hub, the material configuring the vibration isolation member can be injected into or fill the space from the outside, so manufacture becomes even easier.
  • an impeller of a blower comprising any one of the above boss structures and an impeller body that is integrated with the hub or is fixed to the hub.
  • the impeller is equipped with the boss structure where both radial direction sides of the cylindrical portion of the hub contact the vibration isolation member and where the vibration isolation member is sandwiched from both sides in the radial direction by the first boss and the second boss, so deformation of the vibration isolation member in the radial direction with respect to an external force can be reduced, and the strength of the impeller can be improved.
  • both radial direction sides of the cylindrical portion of the hub contact the vibration isolation member and the vibration isolation member is sandwiched from both sides in the radial direction by the first boss and the second boss, so, for example, in comparison to a conventional boss structure where the hub is simply fixedly attached to the outer peripheral portion of the boss via the vibration isolation member, the amount of displacement of the vibration isolation member in the radial direction with respect to an external force becomes about half.
  • FIG. 1 shows a radial direction cross-sectional view of an impeller 100 of a blower equipped with a boss structure 1 pertaining to an embodiment of the present invention.
  • FIG. 2 shows an enlarged view of just the boss structure 1 of FIG. 1 .
  • the impeller 100 is an impeller of a double-suction type multiblade blower and is mainly equipped with an impeller body 101 and the boss structure 1.
  • O-O in the drawing is an axis-of-rotation line of the impeller 100.
  • the impeller body 101 is configured such that one end each of numerous blades 103 is fixed to an outer peripheral portion of both sides of a disc-shaped end plate 102 and such that outer peripheral edges of the other ends of these blades 103 are joined together by annular end rings 104.
  • a hub 10 that configures the boss structure 1 is fixed in the center of the end plate 102. It will be noted that, in the present embodiment, the end plate 102 of the impeller body 101 is fixed to the hub 10, but the end plate 102 is not limited to this and may also be integrated with the hub 10.
  • the boss structure 1 is a structure to which a rotating shaft 106 of a motor 105 that drives the impeller 100 to rotate is pivotally attached, and the boss structure 1 is configured as a result of the hub 10 being fixedly attached to a boss 30 via a vibration isolation member 20.
  • the hub 10 is, in the present embodiment, a member made of sheet metal and mainly includes an annular portion 11 and a cylindrical portion 12.
  • the annular portion 11 is, in the present embodiment, an annular portion whose outer peripheral end is fixed to the inner peripheral portion of the end plate 102 of the impeller body 101.
  • the cylindrical portion 12 is a cylindrical portion that extends in the direction of the axis of rotation, and, in the present embodiment, the cylindrical portion 12 extends from the inner peripheral end of the annular portion 11 toward one side (here, the motor 105 side) in the rotating shaft direction.
  • the vibration isolation member 20 comprises, in the present embodiment, a rubber material or a resin material that has elasticity, and the vibration isolation member 20 is disposed so as to sandwich at least part of the cylindrical portion 12 from both sides in the radial direction.
  • the vibration isolation member 20 includes, in the present embodiment, an inner cylinder portion 21, an outer cylinder portion 22 and an extension portion 23.
  • the inner cylinder portion 21 is a cylindrical portion that contacts the inner peripheral surface of the cylindrical portion 12, and the inner cylinder portion 21 extends from the vicinity of the annular portion side (here, the side opposite the motor 105 side) of the cylindrical portion 12 in the rotating shaft direction to the side opposite the annular portion side (here, the motor 105 side) of the cylindrical portion 12 in the rotating shaft direction.
  • the outer cylinder portion 22 is a cylindrical portion that contacts the outer peripheral surface of the cylindrical portion 12, and the outer cylinder portion 22 extends from the end of the inner cylinder portion 21 on the side opposite the annular portion side in the rotating shaft direction, turns back toward the annular portion 11 side of the cylindrical portion 12 in the rotating shaft direction and extends to the end of the cylindrical portion 12 on the annular portion 11 side in the rotating shaft direction.
  • the extension portion 23 is an annular portion that contacts a surface of the annular portion 11 on one side (here, the motor 105 side) in the rotating shaft direction, and the extension portion 23 extends from the end of the outer cylinder portion 22 on the annular portion 11 side in the rotating shaft direction to a position more on the inner peripheral side than the position where the annular portion 11 is fixed to the end plate 102.
  • the length of the portion of the vibration isolation member 20 where the inner cylinder portion 21 and the outer cylinder portion 22 sandwich the cylindrical portion 12 from both sides in the radial direction is a length L1.
  • the boss 30 is, in the present embodiment, a member made of metal and mainly includes a first boss 31 and a second boss 32.
  • the first boss 31 is a circular cylinder-shaped portion that supports the portion (here, the inner cylinder portion 21) of the vibration isolation member 20 that contacts one radial direction side (here, the inner peripheral side in the radial direction) of the cylindrical portion 12, and a through hole 31a in which the rotating shaft 106 is pivotally attached is formed in the first boss 31.
  • the length of the first boss 31 in the rotating shaft direction is a length L2.
  • the second boss 32 is a portion that supports the portion (here, the outer cylinder portion 22) of the vibration isolation member 20 that contacts the other radial direction side (here, the outer peripheral side in the radial direction) of the cylindrical portion 12, and the second boss 32 rotates integrally with the first boss 31.
  • the second boss 32 includes an annular portion 32a and a cylindrical portion 32b and is integrally molded with the first boss 31.
  • the annular portion 32a is an annular portion that contacts the end of the inner cylinder portion 21 of the vibration isolation member 20 on the side opposite the annular portion 11 side in the rotating shaft direction and the end of the outer cylinder portion 22 on the side opposite the annular portion 11 side in the rotating shaft direction, and the annular portion 32a extends from a position in the substantial center of the first boss 31 in the rotating shaft direction toward the outer peripheral side in the radial direction.
  • the cylindrical portion 32b is a cylindrical portion that contacts the outer peripheral surface of the outer cylinder portion 22 of the vibration isolation member 20, and the cylindrical portion 32b extends from the end of the annular portion 32a on the outer peripheral side in the radial direction to a position where the cylindrical portion 32b contacts a surface of the extension portion 32 on one side (here, the motor 105 side) in the rotating shaft direction.
  • the boss 30 (that is, the first boss 31 and the second boss 32) forms an annular space S1 that is surrounded by the outer peripheral surface of the first boss 31, the surface of the annular portion 32a of the second boss 32 on the other side (here, the side opposite the motor 105 side) in the rotating shaft direction, and the inner peripheral surface of the annular portion 32b of the second boss 32, and the vibration isolation member 20 is housed in this space S1 in a state where the vibration isolation member 20 sandwiches the cylindrical portion 12 of the hub 10 from both sides in the radial direction.
  • this length L3 and the aforementioned length L1 of the portion of the vibration isolation member 20 that sandwiches the hub 10 from both sides in the radial direction have a length that is equal to or greater than 1/4 times the length L2.
  • the boss structure 1 of the present embodiment (the same is also true of the impeller 100 of a blower equipped with this boss structure 1) has the following characteristics.
  • an opening 30b may also be formed in the annular portion 32a of the second boss 32 of the boss 30, for example, separately from the opening 30a.
  • the material configuring the vibration isolation member 20 can be injected into or fill the space S1 through the opening 30b from one side (here, the motor 105 side) in the rotating shaft direction without using the opening 30a or can be injected into or fill the space S1 in conjunction with the opening 30a.
  • the boss structure has a structure where the space S1 that opens to the other side (here, the side opposite the motor 105 side) in the rotating shaft direction is formed in the boss 30 and where the cylindrical portion 12 of the hub 10 is inserted into the space S1 from the side of the boss 30 opposite the motor 105 side, but the boss structure may also have a structure where a space S1 that opens to one side (here, the motor 105 side) in the rotating shaft direction is formed in the boss 30 and where the cylindrical portion 12 of the hub 10 is inserted into the space S1 from the motor 105 side of the boss 30.
  • the boss structure 1 is configured as a result of the hub 10 being fixedly attached to the boss 30 via the vibration isolation member 20.
  • the hub 10 is, in the present modification, a member made of sheet metal and mainly includes an annular portion 11 and a cylindrical portion 12.
  • the annular portion 11 is, in the present modification, an annular portion whose outer peripheral end is fixed to the inner peripheral portion of the end plate 102 of the impeller body 101.
  • the cylindrical portion 12 is a cylindrical portion that extends in the direction of the axis of rotation, and, in the present modification, the cylindrical portion 12 extends from the inner peripheral end of the annular portion 11 toward one side (here, the side opposite the motor 105 side) in the rotating shaft direction.
  • the vibration isolation member 20 comprises, in the present modification, a rubber material or a resin material that has elasticity, and the vibration isolation member 20 is disposed so as to sandwich at least part of the cylindrical portion 12 from both sides in the radial direction.
  • the vibration isolation member 20 includes, in the present modification, an inner cylinder portion 21, an outer cylinder portion 22 and an extension portion 23.
  • the inner cylinder portion 21 is a cylindrical portion that contacts the inner peripheral surface of the cylindrical portion 12, and the inner cylinder portion 21 extends from the vicinity of the annular portion side (here, the motor 105 side) of the cylindrical portion 12 in the rotating shaft direction to the side opposite the annular portion side (here, the side opposite the motor 105 side) of the cylindrical portion 12 in the rotating shaft direction.
  • the outer cylinder portion 22 is a cylindrical portion that contacts the outer peripheral surface of the cylindrical portion 12, and the outer cylinder portion 22 extends from the end of the inner cylinder portion 21 on the side opposite the annular portion side in the rotating shaft direction, turns back toward the annular portion 11 side of the cylindrical portion 12 in the rotating shaft direction and extends to the end of the cylindrical portion 12 on the annular portion 11 side in the rotating shaft direction.
  • the extension portion 23 is an annular portion that contacts a surface of the annular portion 11 on one side (here, the side opposite the motor 105 side) in the rotating shaft direction, and the extension portion 23 extends from the end of the outer cylinder portion 22 on the annular portion 11 side in the rotating shaft direction to a position more on the inner peripheral side than the position where the annular portion 11 is fixed to the end plate 102.
  • the length of the portion of the vibration isolation member 20 where the inner cylinder portion 21 and the outer cylinder portion 22 sandwich the cylindrical portion 12 from both sides in the radial direction is a length L1.
  • the boss 30 is, in the present modification, a member made of metal and mainly includes a first boss 31 and a second boss 32.
  • the first boss 31 is a circular cylinder-shaped portion that supports the portion (here, the inner cylinder portion 21) of the vibration isolation member 20 that contacts one radial direction side (here, the inner peripheral side in the radial direction) of the cylindrical portion 12, and a through hole 31a in which the rotating shaft 106 is pivotally attached is formed in the first boss 31.
  • the length of the first boss 31 in the rotating shaft direction is a length L2.
  • the second boss 32 is a portion that supports the portion (here, the outer cylinder portion 22) of the vibration isolation member 20 that contacts the other radial direction side (here, the outer peripheral side in the radial direction) of the cylindrical portion 12, and the second boss 32 rotates integrally with the first boss 31.
  • the second boss 32 includes an annular portion 32a and a cylindrical portion 32b and is integrally molded with the first boss 31.
  • the annular portion 32a is an annular portion that contacts the end of the inner cylinder portion 21 of the vibration isolation member 20 on the side opposite the annular portion 11 side in the rotating shaft direction and the end of the outer cylinder portion 22 on the side opposite the annular portion 11 side in the rotating shaft direction, and the annular portion 32a extends from the end of the first boss on the side opposite the annular portion 11 side in the rotating shaft direction toward the outer peripheral side in the radial direction.
  • the cylindrical portion 32b is a cylindrical portion that contacts the outer peripheral surface of the outer cylinder portion 22 of the vibration isolation member 20, and the cylindrical portion 32b extends from the end of the annular portion 32a on the outer peripheral side in the radial direction to a position where the cylindrical portion 32b contacts a surface of the extension portion 32 on one side (here, the side opposite the motor 105 side) in the rotating shaft direction.
  • the boss 30 (that is, the first boss 31 and the second boss 32) forms an annular space S1 that is surrounded by the outer peripheral surface of the first boss 31, the surface of the annular portion 32a of the second boss 32 on the other side (here, the motor 105 side) in the rotating shaft direction, and the inner peripheral surface of the annular portion 32b of the second boss 32, and the vibration isolation member 20 is housed in this space S1 in a state where the vibration isolation member 20 sandwiches the cylindrical portion 12 of the hub 10 from both sides in the radial direction.
  • this length L3 and the aforementioned length L1 of the portion of the vibration isolation member 20 that sandwiches the hub 10 from both sides in the radial direction have a length that is equal to or greater than 1/4 times the length L2.
  • the cylindrical portion 12 of the hub 10 is disposed in a predetermined position in the space S1 (that is, an annular clearance S2 is disposed between the annular portion 11 of the hub 10 and the end of the cylindrical portion 32b of the second boss 32 on the motor 105 side in the rotating shaft direction, and it is ensured that the cylindrical portion 12 of the hub 10 does not contact the outer peripheral surface of the first boss 31 or the inner peripheral surface of the cylindrical portion 32b of the second boss 32), and the material configuring the vibration isolation member 20 is injected into or fills the space S1 that the boss 30 (that is, the first boss 31 and the second boss 32) forms and the clearance S2, such that the vibration isolation member 20 can be integrally molded with the first boss 31, the second boss 32 and the hub 10.
  • the material configuring the vibration isolation member 20 can be injected into or fill the space S1 from the rotating shaft direction side through the annular opening 30a that has been formed in the end portion (here, the portion between the end portion of the first boss 31 on the motor 105 side and the end portion of the cylindrical portion 32b of the second boss 32 on the motor 105 side in the radial direction) of the boss 30 on the other side (here, the motor 105 side) in the rotating shaft direction and the opening 30b that has been formed in the annular portion 32a of the second boss 32 of the boss 30.
  • the strength of the impeller 100 can be improved, and the vibration isolation member 20 can be integrally molded with the boss 30 (that is, the first boss 31 and the second boss 32).
  • the boss 30 is a boss where the first boss 31 and the second boss 32 are integrally molded, but as shown in FIG. 6 and FIG. 7 , the first boss 31 and the second boss 32 may also be separate members.
  • the strength of the impeller 100 can be improved, and the vibration isolation member 20 can be integrally molded with the first boss 31, the second boss 32 and the hub 10.
  • the boss structure of the present invention was applied to an impeller of a double-suction type multiblade blower, but the boss structure of the present invention is also applicable to impellers of various blowers, such as a single-suction type multiblade blower, a radial fan, a turbo fan, and a propeller fan.
  • a boss structure of an impeller of a blower that is capable of improving the strength of the impeller and an impeller of a blower equipped with the boss structure.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (5)

  1. Vorsprungstruktur (1), die schwenkbar an einer Drehwelle (106) eines Motors (105) zum drehenden Antreiben eines Laufrads (100) eines Gebläses angebracht ist, wobei die Vorsprungstruktur Folgendes umfasst:
    eine Nabe (10), die einen zylindrischen Abschnitt (12) aufweist, der sich in die Drehwellenrichtung erstreckt;
    ein Schwingungsisolierungselement (20), das den zylindrischen Abschnitt von beiden Seiten in eine radiale Richtung sandwichartig umschließt;
    einen ersten Vorsprung (31), der einen inneren Zylinderabschnitt (21) des Schwingungsisolierungselements trägt, wobei der innere Zylinderabschnitt die innere Umfangsseite in die radiale Richtung des zylindrischen Abschnitts kontaktiert, wobei die Drehwelle schwenkbar an dem ersten Vorsprung anbringbar ist; und
    einen zweiten Vorsprung (32), der einen äußeren Zylinderabschnitt (22) des Schwingungsisolierungselements trägt, wobei der äußere Zylinderabschnitt die äußere Umfangsseite in die radiale Richtung des Zylinderabschnitts kontaktiert, wobei der zweite Vorsprung eingerichtet ist, um sich integral mit dem ersten Vorsprung zu drehen,
    wobei der erste Vorsprung und der zweite Vorsprung einen Raum (S1) bilden, der das Schwingungsisolierungselement aufnimmt und den zylindrischen Abschnitt der Nabe sandwichartig umschließt.
  2. Vorsprungstruktur nach Anspruch 1, wobei der zweite Vorsprung integral mit dem ersten Vorsprung geformt ist.
  3. Vorsprungstruktur nach Anspruch 1 oder Anspruch 2, wobei eine Öffnung (30a, 30b), die es erlaubt, den Raum mit der Außenseite in Kommunikation zu bringen, in dem ersten Vorsprung und/oder dem zweiten Vorsprung gebildet ist.
  4. Vorsprungstruktur nach Anspruch 3, wenn abhängig von Anspruch 2, wobei ein Abschnitt des Schwingungsisolierungselements, der die Nabe von beiden Seiten in die radiale Richtung sandwichartig umschließt, eine Länge (L1) aufweist, und der integral geformte erste und zweite Vorsprung eine andere Länge (L2) in die Drehwellenrichtung aufweisen, und die zuerst erwähnte Länge gleich oder größer ist als ein Viertel der anderen Länge.
  5. Laufrad (100) eines Gebläses, das Folgendes umfasst:
    die Vorsprungstruktur nach einem der Ansprüche 1 bis 4; und
    einen Laufradkörper (101), der mit der Nabe integriert oder an der Nabe befestigt ist.
EP07831348.3A 2006-11-14 2007-11-07 Nabenstruktur für lüfterlaufrad und lüfterlaufrad damit Active EP2090787B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006308291A JP4063308B1 (ja) 2006-11-14 2006-11-14 送風機の羽根車のボス構造及びそれを備えた送風機の羽根車
PCT/JP2007/071617 WO2008059738A1 (fr) 2006-11-14 2007-11-07 Structure de bossage de turbine de souffleur et turbine de souffleur ayant celle-ci

Publications (3)

Publication Number Publication Date
EP2090787A1 EP2090787A1 (de) 2009-08-19
EP2090787A4 EP2090787A4 (de) 2013-09-18
EP2090787B1 true EP2090787B1 (de) 2020-01-01

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EP07831348.3A Active EP2090787B1 (de) 2006-11-14 2007-11-07 Nabenstruktur für lüfterlaufrad und lüfterlaufrad damit

Country Status (5)

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EP (1) EP2090787B1 (de)
JP (1) JP4063308B1 (de)
CN (1) CN101542127B (de)
ES (1) ES2779524T3 (de)
WO (1) WO2008059738A1 (de)

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Publication number Priority date Publication date Assignee Title
JP5014368B2 (ja) * 2009-03-13 2012-08-29 三菱電機株式会社 シロッコファン及びこのシロッコファンを用いた空気調和機の室内機
DE202010011507U1 (de) * 2010-08-18 2010-11-04 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Zweikomponenten-Lüfterrad
JP2012159034A (ja) * 2011-01-31 2012-08-23 Tokai Rubber Ind Ltd ファン用防振ボス
US10465713B2 (en) 2014-03-05 2019-11-05 Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. Rotary fluid element and method of correcting unbalance of rotary fluid element
CN106089775B (zh) * 2016-08-18 2018-12-07 北京超同步伺服股份有限公司 用于冷却电机的单侧支撑扇叶风机

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US3409489A (en) * 1964-11-10 1968-11-05 Torrington Mfg Co Method of making resilient hub assembly
JPH02218895A (ja) * 1989-02-20 1990-08-31 Matsushita Seiko Co Ltd 羽根
JP2566177Y2 (ja) * 1992-03-11 1998-03-25 ダイキン工業株式会社 遠心ファン
JP2000110780A (ja) * 1998-10-08 2000-04-18 Daikin Ind Ltd 送風機の羽根車
CN1215264C (zh) * 2001-09-03 2005-08-17 三菱电机株式会社 鼓风机的防振结构
JP3840993B2 (ja) 2002-03-18 2006-11-01 ダイキン工業株式会社 送風機の羽根車のボス構造および送風機の羽根車

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
ES2779524T3 (es) 2020-08-18
JP4063308B1 (ja) 2008-03-19
EP2090787A1 (de) 2009-08-19
JP2008121610A (ja) 2008-05-29
CN101542127A (zh) 2009-09-23
CN101542127B (zh) 2010-09-29
EP2090787A4 (de) 2013-09-18
WO2008059738A1 (fr) 2008-05-22

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