US3797961A - Centrifugal fan - Google Patents

Centrifugal fan Download PDF

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Publication number
US3797961A
US3797961A US00264243A US3797961DA US3797961A US 3797961 A US3797961 A US 3797961A US 00264243 A US00264243 A US 00264243A US 3797961D A US3797961D A US 3797961DA US 3797961 A US3797961 A US 3797961A
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US
United States
Prior art keywords
rotor
housing
components
drive
pressure connection
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.)
Expired - Lifetime
Application number
US00264243A
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English (en)
Inventor
H Brechbuhl
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Individual
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Individual
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Publication of US3797961A publication Critical patent/US3797961A/en
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Expired - Lifetime legal-status Critical Current

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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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/626—Mounting or removal of fans

Definitions

  • the present invention relates to a new and improved centrifugal fan or ventilator, the rotor of which is driven through the agency of a support plate from the drive shaft of a motor or from the shaft of a V-belt drive, said centrifugal fan comprising a housing having a drive opening, a suction connection and a pressure connection, the housing being formed of at least three components, wherein the one component with the pressure connection can be displaced relative to the other side components with the drive opening and the suction connection and can be fixedly clamped in desired position by means of a holding or retaining mechanism.
  • centrifugal fans possess a unilateral or one-side construction, that is, the erection of the rotor remains unchanged with a construction of the fan mounted at a drive shaft.
  • the drawback of this proposed solution resides in the fact that at least three components of the fan must be shifted or displaced in order to realize the desired effect. Furthermore, the drive shaft extends to the region of the rotor, so that the rotor together with the motor housing must be exchanged.
  • centrifugal fan or ventilator which effectively and reliably fulfills the existing need in the art and is not associated with the aforementioned drawbacks and limitations of the heretofore considered state-of-the-art proposals.
  • Another and more specific object of the present invention relates to a centrifugal fan construction which overcomes the previously discussed drawbacks and the rotor of which as well as also pressure connection of which can be shifted in a most simple manner through 180 to the opposite side.
  • the invention contemplates that the rotor is detachably connected with the support plate and that the ring-shaped disks of the rotor having the blades each possesses at least two mutually symmetrically arranged holes which extend coaxially with regard to the axis of the rotor.
  • FIG. 1 is a side view of a preferred embodiment of centrifugal fan of ventilator according th this invention as veiwed from the suction side;
  • FIG. 2 is a cross-sectional view of the centrifugal fan depicted in FIG. I together with a drive motor, and viewed substantially along the lines II-II thereof.
  • centrifugal fan or ventilator l depicted in FIGS. 1 and 2 can be mounted at the drive side directly at the drive shaft 2 of a suitable drive mechanism, here in the form of a drive motor 3.
  • This drive motor 3 embodies a hub disk 5 keyed to drive shaft 2.
  • a support plate 12 is threadably connected with the hub disk 5, and at the support plate there is attached by means of screws 7 the ring-shaped disk 60 of a rotor 6.
  • Rotor 6 of fan 1 is provided with inclined extending blades or buckets 60 which extend between the two ring-shaped disks 6a and 6b of the rotor 6.
  • the entire rotor 6 is formed of a suitable plastic material and therefore easily can be turned through 180", following loosening of the screws 7 at the disk 6a, and by means of the disk 6b can be again mounted at the support plate 12 and again threadably attached.
  • eleven holes or apertures 8 formed at both disks 6a and 6b, these holes 8 being mutually symmetrically arranged with regard to one another and coaxially with respect to the rotor axis.
  • the rotor 6 is surrounded by a housing 1 l which consists of three detachable portions or components.
  • the side portion 11b of the housing 11 which is located perpendicular to the rotor axis at the drive side of the fan 1 will be seen to possess a drive opening 9 through which is inserted the hub disk 5.
  • the other side portion 11c located perpendicular to the rotor axis and at the suction side of the fan 1 possesses a suction connection or stud l0 and the peripheral housing portion 11a a pressure connection or stud 13.
  • Each of the side housing components 11b and possess a projection or flange 11b and 11c respectively which extends over the entire periphery of the associated side portions or components 11b and 11c respectively.
  • the projections 11b and 11c respectively bear against an associated projection or flange 11a of the peripheral housing portion or component 11a, and wherein each such projection 11a is respectively formed at one side of the peripheral housing component 11a.
  • These projections 11a extend about the entire periphery of the projections 11b and 110'.
  • the projections 11 a, 11b, and lie, and therefore the individual components of the housing 1 1, are detachably connected with one another by two clamping rings 14a and 14b which surround these projections.
  • the individual components or portions 11a, 11b and 11c of the housing 11 are formed of a suitable plastic material, just as was the case for the rotor 6, it is possible after releasing the clamping screw a which adjustably connects both free ends of the ring 14a constructed as a collar, to remove the peripheral housing component 11a together with the side housing component 110 from the projection 11b of the side housing component 1 lb and after the subsequent release of the clamping screw 15b and the relevant ring 14b. it is possible to again mount in a position shifted through l80 the projections 11a of the peripheral housing component 11a at the projections 11b and 110'. Additionally.
  • the above-described fan also can be employed with a different type of drive mechanism, for instance also with a motor having a V-belt drive.
  • the rotor is then mounted on the shaft of the V- belt drive.
  • the above-described fan is of light construction, its housing components as well as the rotor can be shifted in the most simple manner in order to obtain in a most effortless way the desired direction of air flow without having to undertake changes in construction of the fan or ventilator.
  • a centrifugal fan comprising a rotor having a support plate, drive means for said rotor, said rotor being driven through the agency of said support plate by said drive menas, a housing for said rotor having a drive opening, a suction connection and a pressure connection, said rotor housing being formed of at least three components, one of said housing components having the pressure connection, the other of said housing components defining two side housing components, one of said side housing components having the drive opening and the other said suction connection, said one housing component having said pressure connection having means engaging the two side components whereby the said one component having the discharge connection is turnable through 360 and shiftable by l relative to the other two side housing components, means for retaining the turned respectively shifted housing component in desired fixed position, means for detachably connecting the rotor with the support plate, said rotor having at least two ring-shaped disks equipped with rotor blade means, said ring shaped discs each possessing at least two mutually symmetrically arranged holes which extend coaxially and in parallel

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US00264243A 1971-06-25 1972-06-19 Centrifugal fan Expired - Lifetime US3797961A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH940971A CH540435A (de) 1971-06-25 1971-06-25 Zentrifugalventilator

Publications (1)

Publication Number Publication Date
US3797961A true US3797961A (en) 1974-03-19

Family

ID=4351692

Family Applications (1)

Application Number Title Priority Date Filing Date
US00264243A Expired - Lifetime US3797961A (en) 1971-06-25 1972-06-19 Centrifugal fan

Country Status (7)

Country Link
US (1) US3797961A (ref)
CA (1) CA966464A (ref)
CH (1) CH540435A (ref)
DE (1) DE2138022C3 (ref)
FR (1) FR2143287B1 (ref)
GB (1) GB1370541A (ref)
IL (1) IL39752A (ref)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3925043A (en) * 1973-11-13 1975-12-09 Environment One Corp Low cost, efficient, general purpose air cleaner cartridge
US4232994A (en) * 1977-01-14 1980-11-11 Hitachi, Ltd. Centrifugal turbomachine
US4913621A (en) * 1984-05-29 1990-04-03 Kt Kunststofftechnik Gmbh Centrifugal fan
US5074751A (en) * 1989-05-23 1991-12-24 Plasticair Inc. Fan casing
US6336608B1 (en) 2000-02-29 2002-01-08 James Robert Cope Flexible web roller guide assembly with an integral centrifugal pump capability to provide a hydrostatic air bearing function to the roller guides outside supporting surface
JP3303142B2 (ja) 1990-07-16 2002-07-15 ヴァレオ クリマチザション 空気ブロワ・ユニットを備える、自動車の空調システム
EP1312874A1 (en) * 2001-11-16 2003-05-21 Itho B.V. Air circulation unit
US20100183461A1 (en) * 2009-01-16 2010-07-22 ETTER Engineering Company, Inc. Gas Booster System and Related Method
US20120121399A1 (en) * 2009-07-31 2012-05-17 Rem Enterprises Inc. air vacuum pump for a particulate loader and transfer apparatus
WO2013044423A1 (zh) * 2011-09-26 2013-04-04 Zhu Qingdong 多功能气源箱
US20160069352A1 (en) * 2014-09-08 2016-03-10 Regal Beloit America, Inc. Electrical machine and methods of assembling the same
FR3110680A1 (fr) * 2020-05-20 2021-11-26 Renault Dispositif de ventilation d’un dispositif d’assistance à la respiration comprenant un organe de centrage.

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK149021C (da) * 1981-12-28 1993-05-03 Anton Brandi Jensen Anlaeg med bundluftkanaler til lufttoerring af korn i et toerrelager og til transport af kornet bort fra lageret
FR2624924B1 (fr) * 1987-12-22 1993-05-21 Bellmann Michel Ventilateur centrifuge portant un boitier en matiere synthetique, coque formant une face de ce boitier, et procede de fabrication du boitier
GB8909942D0 (en) * 1989-04-29 1989-06-14 Farren Peter W Ventilation equipment
DE4005640A1 (de) * 1990-02-22 1991-08-29 Klein Schanzlin & Becker Ag Spiralgehaeuse in blechbauweise
DE19534258C2 (de) * 1995-09-15 1998-06-04 Tuchenhagen Otto Gmbh Gehäuse für eine Kreiselpumpe
DE102006019177A1 (de) * 2006-04-21 2007-10-25 Behr Gmbh & Co. Kg Trommelläufer-Radialgebläse, insbesondere für eine Kraftfahrzeug-Klimaanlage

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1471559A (en) * 1922-06-02 1923-10-23 Schutte & Koerting Co Fan blower
GB220454A (en) * 1923-08-04 1924-08-21 Walter Purden Improvements relating to rotary fans
US1519245A (en) * 1922-11-10 1924-12-16 Westinghouse Electric & Mfg Co Centrifugal fan
US1908427A (en) * 1930-10-09 1933-05-09 Irving C Jennings Motor driven centrifugal pump
US2986095A (en) * 1956-10-05 1961-05-30 Girton Mfg Company Inc Sanitary pump
FR1273994A (fr) * 1960-09-08 1961-10-20 Mode de réalisation des ventilateurs centrifuges
US3145912A (en) * 1962-07-18 1964-08-25 Artag Plastics Corp Portable centrifugal pump
US3619080A (en) * 1970-01-21 1971-11-09 Carrier Corp Centrifugal fan housing

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1471559A (en) * 1922-06-02 1923-10-23 Schutte & Koerting Co Fan blower
US1519245A (en) * 1922-11-10 1924-12-16 Westinghouse Electric & Mfg Co Centrifugal fan
GB220454A (en) * 1923-08-04 1924-08-21 Walter Purden Improvements relating to rotary fans
US1908427A (en) * 1930-10-09 1933-05-09 Irving C Jennings Motor driven centrifugal pump
US2986095A (en) * 1956-10-05 1961-05-30 Girton Mfg Company Inc Sanitary pump
FR1273994A (fr) * 1960-09-08 1961-10-20 Mode de réalisation des ventilateurs centrifuges
US3145912A (en) * 1962-07-18 1964-08-25 Artag Plastics Corp Portable centrifugal pump
US3619080A (en) * 1970-01-21 1971-11-09 Carrier Corp Centrifugal fan housing

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3925043A (en) * 1973-11-13 1975-12-09 Environment One Corp Low cost, efficient, general purpose air cleaner cartridge
US4232994A (en) * 1977-01-14 1980-11-11 Hitachi, Ltd. Centrifugal turbomachine
US4913621A (en) * 1984-05-29 1990-04-03 Kt Kunststofftechnik Gmbh Centrifugal fan
US5074751A (en) * 1989-05-23 1991-12-24 Plasticair Inc. Fan casing
JP3303142B2 (ja) 1990-07-16 2002-07-15 ヴァレオ クリマチザション 空気ブロワ・ユニットを備える、自動車の空調システム
US6336608B1 (en) 2000-02-29 2002-01-08 James Robert Cope Flexible web roller guide assembly with an integral centrifugal pump capability to provide a hydrostatic air bearing function to the roller guides outside supporting surface
EP1312874A1 (en) * 2001-11-16 2003-05-21 Itho B.V. Air circulation unit
US8851863B2 (en) * 2009-01-16 2014-10-07 ETTER Engineering Company, Inc. Gas booster system and related method
US20100183461A1 (en) * 2009-01-16 2010-07-22 ETTER Engineering Company, Inc. Gas Booster System and Related Method
US20120121399A1 (en) * 2009-07-31 2012-05-17 Rem Enterprises Inc. air vacuum pump for a particulate loader and transfer apparatus
WO2013044423A1 (zh) * 2011-09-26 2013-04-04 Zhu Qingdong 多功能气源箱
US20160069352A1 (en) * 2014-09-08 2016-03-10 Regal Beloit America, Inc. Electrical machine and methods of assembling the same
US10230290B2 (en) * 2014-09-08 2019-03-12 Regal Beloit America, Inc. Electrical machine and methods of assembling the same
US20190190355A1 (en) * 2014-09-08 2019-06-20 Regal Beloit America, Inc. Electrical machine and methods of assembling the same
EP3502480A1 (en) * 2014-09-08 2019-06-26 Regal Beloit America, Inc. Electrical machine and methods of assembling the same
US11228231B2 (en) * 2014-09-08 2022-01-18 Regal Beloit America, Inc. Electrical machine and methods of assembling the same
FR3110680A1 (fr) * 2020-05-20 2021-11-26 Renault Dispositif de ventilation d’un dispositif d’assistance à la respiration comprenant un organe de centrage.

Also Published As

Publication number Publication date
DE2138022C3 (de) 1975-10-09
IL39752A0 (en) 1972-08-30
DE2138022A1 (de) 1973-01-25
CA966464A (en) 1975-04-22
FR2143287B1 (ref) 1973-07-13
FR2143287A1 (ref) 1973-02-02
GB1370541A (en) 1974-10-16
IL39752A (en) 1975-05-22
DE2138022B2 (de) 1975-02-13
CH540435A (de) 1973-08-15

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