US3485443A - Fan scroll - Google Patents
Fan scroll Download PDFInfo
- Publication number
- US3485443A US3485443A US783367A US3485443DA US3485443A US 3485443 A US3485443 A US 3485443A US 783367 A US783367 A US 783367A US 3485443D A US3485443D A US 3485443DA US 3485443 A US3485443 A US 3485443A
- Authority
- US
- United States
- Prior art keywords
- scroll
- fan
- fan scroll
- assembly
- end plates
- 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
Links
Images
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
- F04D29/424—Double entry casings
Definitions
- a fan scroll for unit ventilators and similar apparatus combines the function of sound attenuation with structural support through the use of a self-supporting, substantially rigid, sound attenuating material, such as resin-bonded glass fibers.
- This invention relates to fluid moving fans, and more particularly, to a novel fan scroll assembly for use with centrifugal and cross-flow fans.
- the instant invention provides a fan scroll assembly comprising a scroll portion composed of a self-supporting, substantially rigid, sound attenuating material, the scroll portion being the major structural member of the scroll assembly; the fan assembly further comprises a pair of end plates having intake ports therein and fastening means for securing the end plates against opposing sides of the scroll.
- the scroll is preferably made from glass fibers bonded together by a suitable resin and contains ra fluid imperforate layer, for example, a sheet of polyethylene which is located intermediate the inner and outer surfaces of the fan scroll.
- FIGURE l is an exploded perspective view of the fan scroll assembly of the instant invention.
- FIGURE 2 is a vertical cross sectional view of the fan scroll.
- fan scroll 1 is molded from a self-supporting, substantially rigid, sound attenuating ice material. End plates 2 and 3 are provided which fit against the side portions of fan scroll 1. Flanges 4 fit around the outer edge of the fan scroll. Fastening rods 5 are inserted through eyelets 6 on each of the end plates 2 and 3. The end plates are secured tightly against the side portions of fan scroll 1 by inserting clips 7 onto the portions of rods 5 which extend through eyelets 6 on end plate 2. Clips 7 are of the spring fastening type; however, threads can be provided on rods 5, and screw type fasteners can be used in place of the spring clips 7.
- the end plates 2 and 3 can be stamped steel stock, molded rigid polymeric material, or can be manufactured or molded from the same material of which the fan scroll 1 is composed.
- Flanges 8 and 9 are provided on end plates 2 and 3 to secure the fan scroll assembly to an installation surface; for example, the fan board of a unit ventilator.
- Air inlet orifices 10 and 11 are provided in each of the end plates 2 and 3.
- a rotor assembly connected to a suitable driving means (not shown) can be placed inside scroll 1 when the scroll assembly is installed.
- FIGURE 1 the scroll shape depicted in FIGURE 1 is not the only configuration in which the instant invention can be utilized. Suitable modifications can be made to the scroll and end plates to enable it to be used in a cross-flow fan or other air handling equipment which requires a housing.
- FIGURE 2 a cross sectional view of the fan scroll is illustrated.
- the fan scroll is molded from glass fibers, shown as 15, which are bound together by a suitable resin, shown as 16.
- a neoprene coating is applied to surfaces 17 and 18, although for effective operation of the instant invention neither is necessary.
- a sheet of polymeric material 19 is positioned between the inner and outer surfaces of the scroll. In the preferred embodiment a polyethylene sheet is employed.
- coatings for surfaces 17 and 18 include polychloroprenes, vinyl, polyethylene, paper, oil, or other material which -would inhibit the fiow of fluid through the fan scroll.
- the sheet-like layer 19 inside the fan scroll can similarly be made from paper, polychloroprene (for example, poly-z-chlorobutadiene), vinyl, foil, or other materials able to withstand the molding temperatures Iand the temperatures of the particular scroll application.
- Suitable binder resins for the glass fibers are polyesters, epoxys, for example, an amine cured Bisphenol-A-epichlorohydrin, silicone resins, polyamides, acrylics, polyvinylacetate, and polystyrenes, for example, a polymethylstyrene.
- the materials set forth above are not intended to be exhaustive of those which can be utilized in the instant invention. They are merely intended to be representative.
- a fan scroll assembly comprising ⁇ a scroll portion composed of a self-supporting, substantially rigid, sound attenuating material, said scroll portion being the major structural member of said scroll assembly, said fan assembly further comprising a pair of end plates having intake ports therein, and fastening means for securing said end plates against opposing sides of said scroll.
Description
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US78336768A | 1968-12-12 | 1968-12-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3485443A true US3485443A (en) | 1969-12-23 |
Family
ID=25129029
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US783367A Expired - Lifetime US3485443A (en) | 1968-12-12 | 1968-12-12 | Fan scroll |
Country Status (2)
Country | Link |
---|---|
US (1) | US3485443A (en) |
CA (1) | CA944329A (en) |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3619080A (en) * | 1970-01-21 | 1971-11-09 | Carrier Corp | Centrifugal fan housing |
US3688867A (en) * | 1971-06-30 | 1972-09-05 | Ibm | Acoustically improved blower package |
US3732030A (en) * | 1972-03-02 | 1973-05-08 | Gen Electric | Blower wheel assembly |
JPS496508U (en) * | 1972-04-19 | 1974-01-21 | ||
JPS5465004U (en) * | 1977-10-17 | 1979-05-09 | ||
US4279325A (en) * | 1975-07-01 | 1981-07-21 | Challis Louis A | Acoustic treatment for fans |
US4288202A (en) * | 1977-06-20 | 1981-09-08 | Aerojet-General Corporation | Fan having internal polyhedral strut frame |
FR2554178A1 (en) * | 1983-10-26 | 1985-05-03 | Daimler Benz Ag | FAN HOUSING IN A CARTER |
EP0263914A2 (en) * | 1986-09-15 | 1988-04-20 | Bert Steffens | Housing for centrifugal machines or dust separators, and process for producing the housing |
EP0412454A1 (en) * | 1989-08-09 | 1991-02-13 | Mitsubishi Denki Kabushiki Kaisha | Blower |
US5279515A (en) * | 1992-12-21 | 1994-01-18 | American Standard Inc. | Air handling unit with improved acoustical performance |
US5336046A (en) * | 1991-10-09 | 1994-08-09 | Hatachi, Ltd. | Noise reduced centrifugal blower |
EP0837246A3 (en) * | 1996-10-15 | 1998-11-18 | PM-Luft AB | Fan housing for feeding air to a ventilation system |
US6468034B1 (en) * | 2000-12-04 | 2002-10-22 | Fasco Industries, Inc. | Flush mount round exhaust fabricated inducer housing |
US6511288B1 (en) * | 2000-08-30 | 2003-01-28 | Jakel Incorporated | Two piece blower housing with vibration absorbing bottom piece and mounting flanges |
US6553923B2 (en) | 2000-08-30 | 2003-04-29 | William Stuart Gatley, Jr. | Blower housing with maximized interior spacing |
US7001149B1 (en) * | 2004-03-04 | 2006-02-21 | Beckett Air Incorporated | Blower housing assembly with mounting tabs |
WO2014122368A1 (en) * | 2013-02-11 | 2014-08-14 | Air Liquide Medical Systems | Turbine for a breathing assistance apparatus with improved gas tightness |
US9835176B2 (en) | 2013-04-05 | 2017-12-05 | Acoustiflo Llc | Fan inlet air handling apparatus and methods |
US10865798B2 (en) * | 2016-05-30 | 2020-12-15 | Zhongshan Broad-Ocean Motor Co., Ltd. | Fan coil unit |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2465625A (en) * | 1943-10-18 | 1949-03-29 | Sulzer Ag | Centrifugal compressor |
US3018736A (en) * | 1954-01-04 | 1962-01-30 | Hetherington & Berner Inc | Dredge pump |
US3395775A (en) * | 1965-11-12 | 1968-08-06 | Solar A Division Of Internat H | Vibration damping composite |
-
1968
- 1968-12-12 US US783367A patent/US3485443A/en not_active Expired - Lifetime
-
1969
- 1969-10-27 CA CA065,871A patent/CA944329A/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2465625A (en) * | 1943-10-18 | 1949-03-29 | Sulzer Ag | Centrifugal compressor |
US3018736A (en) * | 1954-01-04 | 1962-01-30 | Hetherington & Berner Inc | Dredge pump |
US3395775A (en) * | 1965-11-12 | 1968-08-06 | Solar A Division Of Internat H | Vibration damping composite |
Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3619080A (en) * | 1970-01-21 | 1971-11-09 | Carrier Corp | Centrifugal fan housing |
US3688867A (en) * | 1971-06-30 | 1972-09-05 | Ibm | Acoustically improved blower package |
US3732030A (en) * | 1972-03-02 | 1973-05-08 | Gen Electric | Blower wheel assembly |
JPS496508U (en) * | 1972-04-19 | 1974-01-21 | ||
US4279325A (en) * | 1975-07-01 | 1981-07-21 | Challis Louis A | Acoustic treatment for fans |
US4288202A (en) * | 1977-06-20 | 1981-09-08 | Aerojet-General Corporation | Fan having internal polyhedral strut frame |
JPS5465004U (en) * | 1977-10-17 | 1979-05-09 | ||
FR2554178A1 (en) * | 1983-10-26 | 1985-05-03 | Daimler Benz Ag | FAN HOUSING IN A CARTER |
EP0263914A2 (en) * | 1986-09-15 | 1988-04-20 | Bert Steffens | Housing for centrifugal machines or dust separators, and process for producing the housing |
EP0263914A3 (en) * | 1986-09-15 | 1989-07-05 | Bert Steffens | Housing for centrifugal machines or dust separators, and process for producing the housing |
EP0412454A1 (en) * | 1989-08-09 | 1991-02-13 | Mitsubishi Denki Kabushiki Kaisha | Blower |
US5110258A (en) * | 1989-08-09 | 1992-05-05 | Mitsubishi Denki Kabushiki Kaisha | Blower having a sound-damping structure |
US5336046A (en) * | 1991-10-09 | 1994-08-09 | Hatachi, Ltd. | Noise reduced centrifugal blower |
US5279515A (en) * | 1992-12-21 | 1994-01-18 | American Standard Inc. | Air handling unit with improved acoustical performance |
EP0837246A3 (en) * | 1996-10-15 | 1998-11-18 | PM-Luft AB | Fan housing for feeding air to a ventilation system |
US6511288B1 (en) * | 2000-08-30 | 2003-01-28 | Jakel Incorporated | Two piece blower housing with vibration absorbing bottom piece and mounting flanges |
US6553923B2 (en) | 2000-08-30 | 2003-04-29 | William Stuart Gatley, Jr. | Blower housing with maximized interior spacing |
USRE40818E1 (en) | 2000-08-30 | 2009-07-07 | Gatley Jr William Stuart | Blower housing with maximized interior spacing |
US6468034B1 (en) * | 2000-12-04 | 2002-10-22 | Fasco Industries, Inc. | Flush mount round exhaust fabricated inducer housing |
US7001149B1 (en) * | 2004-03-04 | 2006-02-21 | Beckett Air Incorporated | Blower housing assembly with mounting tabs |
WO2014122368A1 (en) * | 2013-02-11 | 2014-08-14 | Air Liquide Medical Systems | Turbine for a breathing assistance apparatus with improved gas tightness |
FR3002008A1 (en) * | 2013-02-11 | 2014-08-15 | Air Liquide Medical Systems | TURBINE FOR RESPIRATORY ASSISTANCE APPARATUS WITH IMPROVED GAS SEALING |
CN104981614A (en) * | 2013-02-11 | 2015-10-14 | 液体空气医疗系统公司 | Turbine for a breathing assistance apparatus with improved gas tightness |
CN104981614B (en) * | 2013-02-11 | 2017-07-14 | 液体空气医疗系统公司 | The turbine with improved air-tightness for respiratory assistance apparatus |
US9835176B2 (en) | 2013-04-05 | 2017-12-05 | Acoustiflo Llc | Fan inlet air handling apparatus and methods |
US10865798B2 (en) * | 2016-05-30 | 2020-12-15 | Zhongshan Broad-Ocean Motor Co., Ltd. | Fan coil unit |
Also Published As
Publication number | Publication date |
---|---|
CA944329A (en) | 1974-03-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: TRANE COMPANY, THE Free format text: MERGER;ASSIGNOR:A-S CAPITAL INC. A CORP OF DE;REEL/FRAME:004334/0523 |
|
AS | Assignment |
Owner name: AMERICAN STANDARD INC., A CORP OF DE Free format text: MERGER;ASSIGNORS:TRANE COMPANY, THE;A-S SALEM INC., A CORP. OF DE (MERGED INTO);REEL/FRAME:004372/0349 Effective date: 19841226 Owner name: TRANE COMPANY THE Free format text: MERGER;ASSIGNORS:TRANE COMPANY THE, A CORP OF WI (INTO);A-S CAPITAL INC., A CORP OF DE (CHANGED TO);REEL/FRAME:004372/0370 Effective date: 19840224 |
|
AS | Assignment |
Owner name: A-S CAPITAL INC., A CORP OF DE Free format text: MERGER;ASSIGNOR:TRANE COMPANY THE A WI CORP;REEL/FRAME:004432/0765 Effective date: 19840224 |
|
AS | Assignment |
Owner name: A-S CAPITAL INC. Free format text: MERGER;ASSIGNOR:TRANE COMPANY THE;REEL/FRAME:004476/0376 Effective date: 19840224 |
|
AS | Assignment |
Owner name: AMERICAN STANDARD INC., A CORP OF DELAWARE Free format text: MERGER;ASSIGNORS:TRANE COMPANY THE;A-S SALEM INC.;REEL/FRAME:004508/0684 Effective date: 19841226 |