WO2008059775A1 - Turbine pour ventilateur à multiples pales - Google Patents

Turbine pour ventilateur à multiples pales Download PDF

Info

Publication number
WO2008059775A1
WO2008059775A1 PCT/JP2007/071878 JP2007071878W WO2008059775A1 WO 2008059775 A1 WO2008059775 A1 WO 2008059775A1 JP 2007071878 W JP2007071878 W JP 2007071878W WO 2008059775 A1 WO2008059775 A1 WO 2008059775A1
Authority
WO
WIPO (PCT)
Prior art keywords
impeller
end plate
blade
blades
rotation axis
Prior art date
Application number
PCT/JP2007/071878
Other languages
English (en)
Japanese (ja)
Inventor
Masahito Higashida
Original Assignee
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.
Priority to EP07831608.0A priority Critical patent/EP2096318B1/fr
Publication of WO2008059775A1 publication Critical patent/WO2008059775A1/fr

Links

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
    • F04D29/02—Selection of particular materials
    • F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
    • 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
    • F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/50—Building or constructing in particular ways
    • F05D2230/53—Building or constructing in particular ways by integrally manufacturing a component, e.g. by milling from a billet or one piece construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/40—Organic materials
    • F05D2300/43—Synthetic polymers, e.g. plastics; Rubber

Definitions

  • the present invention relates to an impeller of a multiblade blower, and more particularly to an impeller of a multiblade blower that sucks gas from a rotation axis direction and blows out gas in a direction crossing the rotation axis.
  • a multiblade blower that draws gas in the direction of the rotation axis and blows out gas in a direction that intersects the rotation axis is often used in order to blow air.
  • Such an impeller of a multiblade blower is mainly arranged in a substantially circular end plate that rotates about a rotation axis, and is annularly arranged on the end plate with the rotation axis as the center, and each end is disposed on the outer periphery of the main plate.
  • a plurality of wings provided and an end ring connecting the other ends of the plurality of wings are provided.
  • Patent Document 1 JP 2000-320490 A
  • the impeller of the former multiblade fan is rotated at a high speed, the centrifugal force applied to the impeller increases, the concentricity of the impeller cannot be maintained, and the amount of uneven balance increases.
  • the impeller may be greatly deformed and damaged.
  • the latter impeller of the latter multi-blade fan is provided with an intermediate ring, so that the amount of deformation of the impeller due to centrifugal force is larger than that of the former impeller of the multi-blade fan. Becomes smaller and high speed rotation is possible.
  • the intermediate ring provided in this impeller is provided from the outer peripheral edge to the inner peripheral edge of the blade, the ventilation resistance when blowing from the inside of the impeller to the outer peripheral side increases. The problem power.
  • the intermediate ring Since it is provided from the outer peripheral edge to the inner peripheral edge of the blade, it is difficult to mold the resin integrally, and like the impeller of the cross flow fan, the impeller is positioned in the direction of the rotation axis at the position of the intermediate ring. Since it is necessary to mold the resin by dividing it into a part on the end ring side and a part on the end plate side in the rotation axis direction, and joining these parts by ultrasonic welding, etc. There is a problem that it takes time and effort S
  • the problem of the present invention is that the impeller of a multiblade blower suppresses an increase in ventilation resistance when blown from the inside of the impeller to the outer peripheral side as much as possible, and can be integrally molded with a high-speed rotation. It is to realize.
  • An impeller of a multiblade blower that is the power of the first invention is an impeller of a multiblade blower that sucks gas from the direction of the rotation axis and blows out gas in a direction intersecting the rotation axis.
  • a substantially circular end plate that rotates about the center, a plurality of blades, and one or more intermediate rings.
  • the plurality of blades are annularly arranged on one or both sides of the end plate with the rotation axis as the center, and one end is provided on the outer periphery of the end plate.
  • the intermediate ring is located at a position other than the end on the side opposite to the end plate of the plurality of blades! / And connects the outer peripheral edges of the blades so that they do not overlap with the blades when viewed from the rotation axis direction. It is formed as follows.
  • the intermediate ring force provided at a position other than the end on the side opposite to the end plate side of the plurality of blades so that the blades do not overlap with each other when viewed from the direction of the rotation axis.
  • the outer peripheral edge of the impeller is formed so that the increase in ventilation resistance when blown from the inside of the impeller to the outer peripheral side and the resin impregnation of the entire impeller including the intermediate ring are possible, High speed rotation can be realized.
  • the impeller of the multi-blade fan that is powerful in the second invention is the impeller of the multi-blade fan that is powerful in the first invention.
  • At least a part of the intermediate ring is at the end plate side end of the blade. From the position corresponding to 1/4 times the blade length from the end plate side end of the blade to the end plate side end toward the end of the blade opposite to the end plate side. It is formed so as to be included in the range up to the position corresponding to 3/4 times the length!
  • the intermediate ring is directed from the end plate side end of the blade toward the end plate side of the blade toward the end end side of the blade from the end plate side of the blade. From the position corresponding to 1/4 times the blade length to the end, the blade length 3 Because it is formed so as to be included in a range up to a position corresponding to / 4 times the length, deformation of the vane wheel can be effectively suppressed.
  • the impeller of the multi-blade fan which is the power of the third invention, is the blade wheel of the multi-blade fan, the power of the second invention, the intermediate ring is the end plate side end of the blade and the anti-end plate Two pitches are formed between the side edges, and the pitch between the intermediate rings is set within the range of 1/4 times the blade length to 3/4 times the blade length. Yes.
  • the impeller of the multi-blade fan according to the fourth invention is the impeller of the multi-blade fan according to any of the first to third inventions, wherein the cross-sectional shape of the intermediate ring is the rotational axis.
  • the length in the direction is approximately rectangular, which is more than 1/2 the length of protrusion from the outer periphery of the wing.
  • the cross-sectional shape of the intermediate ring is a substantially rectangular shape whose length in the rotation axis direction is 1/2 or more of the protruding length from the outer peripheral edge of the blade, which is sufficient for the intermediate ring. Since it has a thickness in the direction of the rotation axis, deformation of the impeller can be effectively suppressed.
  • the impeller of the multiblade fan according to the fifth invention is the impeller of the multiblade fan according to any of the first to third inventions, wherein the cross-sectional shape of the intermediate ring is substantially L It is a letter shape.
  • the cross-sectional shape of the intermediate ring is substantially L-shaped, and the intermediate ring has a sufficient thickness in the direction of the rotation axis, which effectively suppresses the deformation of the impeller. S can.
  • the impeller of the multiblade fan according to the sixth invention is the impeller of the multiblade fan according to any of the first to third inventions, wherein the cross-sectional shape of the intermediate ring is substantially trapezoidal. Shape.
  • the cross-sectional shape of the intermediate ring has a substantially trapezoidal shape, and the intermediate ring has a sufficient thickness in the direction of the rotation axis, so that it can effectively recognize the deformation of the impeller. That power S.
  • FIG. 1 is a radial cross-sectional view of an impeller of a multiblade blower that is effective in an embodiment of the present invention.
  • FIG. 2 is a radial cross-sectional view of an impeller of a multiblade fan and a shape of a mold corresponding to the cross-sectional view.
  • FIG. 3 is a plan view of an impeller of a multiblade fan and a shape of a mold corresponding to the plan view.
  • FIG. 4 is a radial sectional view of an impeller of a multiblade fan according to Modification 1.
  • FIG. 5 is a radial cross-sectional view of an impeller of a multiblade fan according to Modification 2, showing the vicinity of an intermediate ring.
  • FIG. 6 is a radial cross-sectional view of an impeller of a multiblade fan according to Modification 2, showing the vicinity of an intermediate ring.
  • FIG. 7 is a radial cross-sectional view of an impeller of a multi-blade blower that focuses on another embodiment.
  • FIG. 1 shows an impeller 1 of a multiblade blower according to an embodiment of the present invention.
  • FIG. 1 is a radial sectional view of the impeller 1 of the multiblade fan.
  • Impeller 1 is an impeller of a double-suction type multi-blade fan that sucks gas from both sides of the rotation axis and blows gas in a direction crossing the rotation axis, and is driven to rotate by motor 2. .
  • OO in the figure is the rotational axis of the impeller 1 and the motor 2.
  • the impeller 1 is a resin product that is integrally molded using a mold, and mainly includes an end plate 11, a plurality of blades 12, a undling ring 13, and one or more intermediate rings 14. It is equipped with.
  • the end plate 11 is a substantially circular portion that rotates about the rotation shaft 3 of the motor 2, and a center hole 11 a to which the rotation shaft 3 is coupled is formed.
  • the plurality of blades 12 are annularly arranged on both surfaces of the end plate 11 with the rotation shaft 3 as the center, and each end is disposed on the outer periphery of the end plate 11 and extends without twisting toward both sides in the rotation axis direction. /!
  • the end ring 13 is an annular portion connecting the outer peripheral edges of the opposite end plate 11 side ends of the blades 12 at the position of the other end of the blade (that is, the opposite end plate 11 side end). It is arranged on both sides of the plate 11 in the rotation axis direction. The end ring 13 is formed so as not to overlap the plurality of blades 12 when viewed from the rotation axis direction.
  • the intermediate ring 14 is connected to the outer peripheral edge of each blade 12 so that it does not overlap with the plurality of blades 12 when viewed from the rotational axis direction at a position other than the end on the side opposite to the end plate 11 of the plurality of blades 12.
  • the annular portion is disposed on both sides of the end plate 11 in the rotation axis direction. Further, at least a part of each intermediate ring 14 is directed from the end plate 11 side end of the blade 12 toward the anti-end plate 11 side end of the blade 12 from the end plate 11 side end of the blade 12 as a reference.
  • each intermediate ring 14 is a substantially rectangular shape in which the length L2 in the rotation axis direction is 1/2 or more of the protruding length W from the outer peripheral edge of the blade 12. In the present embodiment, each intermediate ring 14 is approximately 1/2 times the blade length L1 from the end 12 side end of the blade 12 toward the opposite end plate 11 side end of the blade 12.
  • the length L 2 in the direction of the rotation axis has a substantially rectangular (that is, substantially square) cross-sectional shape having a length substantially the same as the protruding length W.
  • FIG. 2 is a diagram showing the radial cross-sectional view of the impeller 1 of the multiblade fan and the shapes of the molds 4, 5, 6, and 7 corresponding to the cross-sectional view.
  • FIG. 3 is a plan view of the bladed wheel 1 of the multiblade fan and the shapes of the molds 4, 6, and 7 corresponding to the plan view.
  • the impeller 1 is formed by integrally molding resin using two pairs of molds 4 and 5 and molds 6 and 7.
  • the end plate forming portion 4a of the mold 4 and the end plate forming portion 5a of the mold 5 include the end plate 11 including the center hole 11a (however, the radial direction).
  • the outer rim forming portions 4c and 5c of the dies 4 and 5 are formed by forming the wing forming portions 4b and 5b of the dies 4 and 5 into the wing 12 (excluding the outer peripheral edge in the radial direction).
  • the illustration of the outer peripheral edge forming portion 5c is omitted) forms the radial inner peripheral edge of the end ring 13 and the radial inner peripheral edge of the intermediate ring 14.
  • the outer peripheral edge forming portions 6 a and 7 a are in the radial outer peripheral edge of the end plate 11.
  • the end ring forming parts 6b and 7b form the end ring 13 (excluding the inner peripheral edge of the end ring 13 in the radial direction)
  • the intermediate ring forming parts 6c and 7c are in the middle Form a ring 14 (except for the radially inner edge of the intermediate ring 14).
  • the impeller 1 of the multiblade fan of the present embodiment can be integrally molded with resin by removing the dies 4 and 5 in the rotational axis direction and dies 6 and 7 in the radial direction. is there.
  • the impeller 1 of the multiblade fan of the present embodiment has the following characteristics.
  • the intermediate ring 14 provided at a position other than the side end of the anti-end plate 11 of the plurality of blades 12 overlaps the plurality of blades 12 when viewed from the rotation axis direction. It is formed so that the outer peripheral edge of each wing 12 is connected. Therefore, when the airflow F (see FIG. 1) flowing into the impeller 1 from the axially opposite end plate 11 side of the impeller 1 is blown out from the inside of the impeller 1 to the outer peripheral side, the conventional intermediate ring In contrast, the intermediate ring 14 can suppress an increase in draft resistance. Moreover, the resin impregnation of the entire impeller 1 including the intermediate ring 14 is possible.
  • the impeller 1 of the multiblade blower of the present embodiment including the suppression of the increase in ventilation resistance when blown from the inside of the impeller 1 to the outer peripheral side and the intermediate ring 14 is included.
  • the entire High-speed rotation can be realized while making the resin integral molding possible.
  • the intermediate ring 14 is directed toward the opposite end plate 11 side end of the blade 12 with respect to the end plate 11 side end of the blade 12. From the position corresponding to 1/4 of the blade length L1 from the end plate 11 side end to the end plate 11 side end of the end plate to the position corresponding to 3/4 times the blade length L1 Since it is formed so as to be included in the range, the deformation of the impeller 1 can be effectively suppressed.
  • the cross-sectional shape of the intermediate ring 14 is a substantially rectangular shape in which the length L2 in the rotation axis direction is 1/2 or more of the projection length W from the outer peripheral edge of the blade 12. Since the intermediate ring 14 has a sufficient thickness in the rotational axis direction, deformation of the impeller 1 can be effectively suppressed.
  • one intermediate ring 14 is formed between the end plate 11 side end of the wing 12 and the opposite end plate 11 side end of the wing 12! /, But a plurality of intermediate rings are formed. In addition, the amount of deformation of the impeller caused by centrifugal force may be further reduced.
  • two intermediate rings 15 can be formed between an end plate 11 side end of the blade 12 and an end plate 11 side end of the blade 12.
  • at least a part of the blades 12 of each intermediate ring 15 is provided so that deformation of the impeller 1 can be effectively suppressed.
  • the blade length from the end plate 11 side end of the blade 12 to the anti-end plate 11 side end is 1/4 times longer than the end plate 11 side end of the blade 12 toward the anti-end plate 11 side end of the blade 12 It is desirable to form it within the range from the position corresponding to the height to the position corresponding to 3/4 times the blade length L1.
  • the pitch P between the two intermediate rings 15 formed between the end 12 of the blade 12 on the side of the end plate 11 and the end of the blade 12 on the side of the end plate 11 is 1/4 times the length L1 of the blade.
  • the deformation of the impeller 1 can be more effectively suppressed by setting it within the range of 3/4 times the blade length.
  • the impeller 1 of the multiblade blower of this modification it corresponds to the formation position of the intermediate ring 15 in the molds (molds 6 and 7 shown in FIGS. 2 and 3) that are pulled out in the radial direction.
  • the cross-sectional shape of the intermediate rings 14 and 15 is substantially rectangular.
  • a mold the mold shown in FIGS. 2 and 3
  • intermediate rings with various cross-sectional shapes can be used.
  • the cross-sectional shape of the intermediate rings 14 and 15 may be substantially L-shaped so as to have a sufficient thickness in the rotational axis direction.
  • the intermediate rings 14 and 15 have portions 14a and 15a extending in the rotation axis direction, and portions 14b and 15b projecting toward the outer peripheral side in the radial direction from the portions 14a and 15a.
  • the force that passes through the impeller 1 It is desirable to form the parts 14b and 15b so that they are placed on the end plate 11 side so that the airflow F can flow smoothly.
  • the cross-sectional shape of the intermediate rings 14 and 15 may be substantially trapezoidal so as to have a sufficient thickness in the direction of the rotation axis.
  • the intermediate rings 14 and 15 are directed to the radially outer peripheral side of the blade 12, and the force formed so that the thickness in the rotational axis direction decreases accordingly.
  • the surface on the side opposite to the end ring 11 is inclined toward the end ring 11 side as it is directed toward the radially outer peripheral side of the blade 12. It is desirable to form.
  • the present invention is applied to the impeller of a single-suction type multi-blade fan, which explains an example in which the present invention is applied to the impeller of a double-suction type multi-blade fan
  • the invention may be applied.
  • an impeller 101 of a multiblade blower that includes an end plate 11, a plurality of blades 12, and an end ring 13, and is driven to rotate by a motor 2, the end plate 11 1
  • the blade 12 can be connected to the blade 12 from the end plate 11 side end similarly to the above-described embodiment.
  • a configuration in which one intermediate ring 14 is formed between the end plate 11 and the end of the end plate 11 is possible.
  • the specific shape of the mold is different from the above-described embodiment and its modifications.
  • the impeller 101 of the multi-blade fan of the configuration as in the above-described embodiment and its modified examples, the impeller including the intermediate ring is used by using the die that is extracted in the rotational axis direction and the die that is extracted in the radial direction.
  • the resin 101 can be integrally molded.
  • each of the plurality of blades 12 is provided with the end plate 11 and the other end is connected with the end ring 13, and the intermediate rings 14 and 15 are provided.
  • the present invention is not limited to this, and the intermediate rings 14 and 15 may be provided in a configuration in which each other end is not connected by the end ring 13.

Landscapes

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

Abstract

L'invention concerne une turbine pour un ventilateur à multiples pales, dans laquelle l'augmentation de la résistance de l'écoulement d'air éjecté de l'intérieur vers le côté périphérique externe de la turbine est supprimée autant que possible, et qui est formée d'une seule pièce d'une résine pour effectuer une rotation à vitesse élevée de la turbine. La turbine (1) est une turbine pour un ventilateur à multiples pales pour aspirer du gaz à partir de la direction de l'arbre rotatif et l'éjecter vers la direction croisant l'arbre rotatif. La turbine (1) a une plaque d'extrémité (11) sensiblement circulaire tournant autour de l'arbre rotatif (3) et une ou plusieurs bagues intermédiaires (14). Les pales (12) sont disposées en anneau autour de l'arbre rotatif (3), sur un côté ou sur les deux côtés de la plaque d'extrémité (11), et une extrémité de chaque pale se situe sur la section périphérique externe de la plaque d'extrémité (11). Les bagues intermédiaires (14) sont formées de telle sorte que, aux positions des pales (12) qui sont autre que des extrémités sur le côté opposé à la plaque d'extrémité (11), elles ne sont pas superposées sur les pales (12) lorsque vues dans la direction de l'arbre rotatif et elles relient les bords périphériques externes des pales (12).
PCT/JP2007/071878 2006-11-14 2007-11-12 Turbine pour ventilateur à multiples pales WO2008059775A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07831608.0A EP2096318B1 (fr) 2006-11-14 2007-11-12 Turbine pour ventilateur à multiples pales

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006-308292 2006-11-14
JP2006308292A JP2008121611A (ja) 2006-11-14 2006-11-14 多翼送風機の羽根車

Publications (1)

Publication Number Publication Date
WO2008059775A1 true WO2008059775A1 (fr) 2008-05-22

Family

ID=39401582

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/071878 WO2008059775A1 (fr) 2006-11-14 2007-11-12 Turbine pour ventilateur à multiples pales

Country Status (3)

Country Link
EP (1) EP2096318B1 (fr)
JP (1) JP2008121611A (fr)
WO (1) WO2008059775A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5704139B2 (ja) * 2012-09-04 2015-04-22 ダイキン工業株式会社 クロスフローファン
JP2014134163A (ja) * 2013-01-11 2014-07-24 Nisshinbo Mechatronics Inc 送風機用羽根車
JP6138343B2 (ja) * 2014-03-19 2017-05-31 三菱電機株式会社 遠心送風機

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB997948A (en) 1961-07-13 1965-07-14 Bruno Eck Centrifugal blowers
FR2044581A5 (en) * 1969-05-27 1971-02-19 Bichet Lucien Forming small fan and turbine sections
JPS51150712A (en) * 1975-06-20 1976-12-24 Hitachi Ltd A multi- blade fan
JPS5962298U (ja) * 1982-10-19 1984-04-24 カルソニックカンセイ株式会社 多翼ファン装置
JPH08135596A (ja) * 1994-11-10 1996-05-28 Daikin Ind Ltd 遠心送風機用羽根車
JP2000320490A (ja) 1999-05-07 2000-11-21 Mitsubishi Heavy Ind Ltd 多翼送風機

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51154411U (fr) * 1975-06-04 1976-12-09
JP4292417B2 (ja) * 2005-01-28 2009-07-08 日本電産サーボ株式会社 遠心ファンのインペラ

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB997948A (en) 1961-07-13 1965-07-14 Bruno Eck Centrifugal blowers
FR2044581A5 (en) * 1969-05-27 1971-02-19 Bichet Lucien Forming small fan and turbine sections
JPS51150712A (en) * 1975-06-20 1976-12-24 Hitachi Ltd A multi- blade fan
JPS5962298U (ja) * 1982-10-19 1984-04-24 カルソニックカンセイ株式会社 多翼ファン装置
JPH08135596A (ja) * 1994-11-10 1996-05-28 Daikin Ind Ltd 遠心送風機用羽根車
JP2000320490A (ja) 1999-05-07 2000-11-21 Mitsubishi Heavy Ind Ltd 多翼送風機

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2096318A4 *

Also Published As

Publication number Publication date
EP2096318A1 (fr) 2009-09-02
EP2096318A4 (fr) 2013-02-06
EP2096318B1 (fr) 2020-01-01
JP2008121611A (ja) 2008-05-29

Similar Documents

Publication Publication Date Title
JP3698150B2 (ja) 遠心送風機
JP3995010B2 (ja) 多翼送風機の羽根車及びその製造方法
US8192165B2 (en) Impeller of multiblade fan and multiblade fan having the same
JP5287772B2 (ja) 遠心式多翼ファン
JP5230805B2 (ja) 多翼送風機
JP5809859B2 (ja) 遠心式ファン
JP5145188B2 (ja) 多翼遠心ファンおよびそれを用いた空気調和機
JP2008184999A (ja) 送風機羽根車
JP5111582B2 (ja) 遠心ファンとこれを備えた空気調和装置及び遠心ファンの金型
WO2008059775A1 (fr) Turbine pour ventilateur à multiples pales
JP2006322378A (ja) 送風機羽根車
JP2006077631A (ja) 遠心型送風機の羽根車
JP4726506B2 (ja) 遠心式多翼ファン
JP4945859B2 (ja) 遠心送風機の羽根車及びそれを備えた遠心送風機
JP4500038B2 (ja) 遠心式多翼ファン
JP6048024B2 (ja) プロペラファン
JP2015102003A (ja) ターボファン及びこれを用いた空気調和機
JP5269025B2 (ja) 遠心ファン及びこれを備えた空気調和機の室内機
JP7317235B2 (ja) 多翼羽根車および遠心送風機
JP5120299B2 (ja) 送風機羽根車
KR20020081916A (ko) 공기조화기용 터보팬
JP4726503B2 (ja) 遠心式多翼ファン
JP2020183740A (ja) プロペラファンおよび送風機
JP2005201203A (ja) 多翼ファン
JP2002155895A (ja) 多翼送風機の羽根車、及びそれを備えた多翼送風機

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07831608

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2007831608

Country of ref document: EP