EP1571351A1 - Mécanisme de suspension pour un moteur de ventilateur - Google Patents
Mécanisme de suspension pour un moteur de ventilateur Download PDFInfo
- Publication number
- EP1571351A1 EP1571351A1 EP04425136A EP04425136A EP1571351A1 EP 1571351 A1 EP1571351 A1 EP 1571351A1 EP 04425136 A EP04425136 A EP 04425136A EP 04425136 A EP04425136 A EP 04425136A EP 1571351 A1 EP1571351 A1 EP 1571351A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- electric motor
- fan
- suspension system
- impeller
- 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.)
- Granted
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
- F04D29/66—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 fan suspension system for reducing vibration on the supporting frame induced by rotation of the electric motor shaft and the masses, e.g. the fan impeller, connected to it.
- Severe vibration may be generated in particular when the electric motor shaft rotates at high speed.
- one or more elastic members metal springs or rubber pads
- the present invention may be used to advantage in a fan associated with a combustion unit, in which reducing vibration, and therefore noise, is particularly important.
- number 10 indicates a fan to which is applied a first embodiment of a suspension system 100 for an electric motor 11 enclosed in a casing 12 supported by a partly sectioned "cup-shaped" member 13 ( Figure 1).
- the innovative system 100 will be described in detail later on.
- electric motor 11 rotates a drive shaft 14, which is fitted with an impeller 15 enclosed in a housing 16 having a scroll.
- housing 16 comprises a first "cup-shaped" portion 16a, and a second portion 16b in the form of a cover; and the two portions 16a, 16b are fixed to each other by conventional means (not described) to enclose impeller 15.
- member 13 houses, inside a seat 17, a bearing 19 supporting drive shaft 14.
- the three elastic members 20 are made of rubber or any elastomeric material, and each surrounds a pin 20a screwed to the outer end of first portion 16a by a respective screw 21 ( Figure 3).
- each elastic member 20 comprises a substantially cylindrical main body 20b, in which is formed a circumferential groove 20c.
- each elastic member 20 is inserted inside a corresponding seat 21a formed in "cup-shaped” member 13; and circumferential groove 20c engages the walls of respective seat 21a to elastically secure housing 16 with respect to "cup-shaped" member 13 as required.
- the term "suspended mass” in the present context is intended to mean the whole defined by electric motor 11, casing 12, "cup-shaped” member 13, drive shaft 14, and impeller 15, and which is substantially symmetrical with respect to the longitudinal axis (a) of drive shaft 14.
- system 100 comprises at least one damping member 20 interposed between housing 16 housing impeller 15, and member 13 housing and supporting electric motor 11.
- Figure 7a shows vibration, along the Y axis, with respect to the speed of drive shaft 14, along the X axis; and the comparison was made between a fan 10 in accordance with the present invention and fitted with suspension system 100 described, and the same fan fitted with a prior-art suspension system.
- the vibration detecting device (not shown) was placed on casing 12 of electric motor 11.
- Figure 7b shows vibration (along the Y axis) with respect to the speed of drive shaft 14, but, in this case, with the detecting device on housing 16.
- toroidal member 22 is inserted inside a seat 23 formed in "cup-shaped" member 13, and, as shown in Figure 6, is fixed to first portion 16a by three screws 24.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200460003898 DE602004003898D1 (de) | 2004-03-02 | 2004-03-02 | Aufhängung für einen Ventilatormotor |
EP20040425136 EP1571351B1 (fr) | 2004-03-02 | 2004-03-02 | Mécanisme de suspension pour un moteur de ventilateur |
CN 200510053110 CN1664379A (zh) | 2004-03-02 | 2005-03-02 | 风扇悬挂系统 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20040425136 EP1571351B1 (fr) | 2004-03-02 | 2004-03-02 | Mécanisme de suspension pour un moteur de ventilateur |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1571351A1 true EP1571351A1 (fr) | 2005-09-07 |
EP1571351B1 EP1571351B1 (fr) | 2006-12-27 |
Family
ID=34746222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20040425136 Expired - Lifetime EP1571351B1 (fr) | 2004-03-02 | 2004-03-02 | Mécanisme de suspension pour un moteur de ventilateur |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1571351B1 (fr) |
CN (1) | CN1664379A (fr) |
DE (1) | DE602004003898D1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9358409B2 (en) | 2010-04-06 | 2016-06-07 | 3M Innovative Properties Company | Air filtration device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5030068A (en) * | 1989-09-18 | 1991-07-09 | Jacobs Paul G | Vibration and shock damping air blower |
US6278209B1 (en) * | 1998-03-28 | 2001-08-21 | Robert Bosch Gmbh | Decoupling device for an electric motor |
DE20206862U1 (de) * | 2002-04-30 | 2003-09-04 | Ebm Werke Gmbh & Co Kg | Anordnung zur schwingungsisolierenden Halterung eines Elektromotors |
-
2004
- 2004-03-02 EP EP20040425136 patent/EP1571351B1/fr not_active Expired - Lifetime
- 2004-03-02 DE DE200460003898 patent/DE602004003898D1/de not_active Expired - Lifetime
-
2005
- 2005-03-02 CN CN 200510053110 patent/CN1664379A/zh active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5030068A (en) * | 1989-09-18 | 1991-07-09 | Jacobs Paul G | Vibration and shock damping air blower |
US6278209B1 (en) * | 1998-03-28 | 2001-08-21 | Robert Bosch Gmbh | Decoupling device for an electric motor |
DE20206862U1 (de) * | 2002-04-30 | 2003-09-04 | Ebm Werke Gmbh & Co Kg | Anordnung zur schwingungsisolierenden Halterung eines Elektromotors |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9358409B2 (en) | 2010-04-06 | 2016-06-07 | 3M Innovative Properties Company | Air filtration device |
Also Published As
Publication number | Publication date |
---|---|
CN1664379A (zh) | 2005-09-07 |
EP1571351B1 (fr) | 2006-12-27 |
DE602004003898D1 (de) | 2007-02-08 |
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