NL7402356A - Sound attenuating type centrifugal fan housing - is cut from plastic plate and has partition baffle - Google Patents
Sound attenuating type centrifugal fan housing - is cut from plastic plate and has partition baffleInfo
- Publication number
- NL7402356A NL7402356A NL7402356A NL7402356A NL7402356A NL 7402356 A NL7402356 A NL 7402356A NL 7402356 A NL7402356 A NL 7402356A NL 7402356 A NL7402356 A NL 7402356A NL 7402356 A NL7402356 A NL 7402356A
- Authority
- NL
- Netherlands
- Prior art keywords
- plate
- housing
- cut
- fan housing
- plastic plate
- Prior art date
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
- F04D29/40—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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
Abstract
The spiral housing is cut out from a plate of plastic. The fan can be accommodated in a spiral shaped opening cut out of a plastic plate mounted in the housing. The plastic used can be of the foam type. The design is cheap to produce, and in addition greatly reduces fan noise when running, thus being particularly suitable for use in ventilating private houses. A partition baffle plate (6) stretches over the greater part longitudinally parallel to the housing base plate (1), whilst below plate (6) is a space accessible through the fan housing suction branch.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7402356A NL7402356A (en) | 1974-02-21 | 1974-02-21 | Sound attenuating type centrifugal fan housing - is cut from plastic plate and has partition baffle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7402356A NL7402356A (en) | 1974-02-21 | 1974-02-21 | Sound attenuating type centrifugal fan housing - is cut from plastic plate and has partition baffle |
Publications (1)
Publication Number | Publication Date |
---|---|
NL7402356A true NL7402356A (en) | 1975-08-25 |
Family
ID=19820795
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7402356A NL7402356A (en) | 1974-02-21 | 1974-02-21 | Sound attenuating type centrifugal fan housing - is cut from plastic plate and has partition baffle |
Country Status (1)
Country | Link |
---|---|
NL (1) | NL7402356A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4611531A (en) * | 1984-01-14 | 1986-09-16 | Siegenia-Frank, Kg | Ventilation appliance |
-
1974
- 1974-02-21 NL NL7402356A patent/NL7402356A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4611531A (en) * | 1984-01-14 | 1986-09-16 | Siegenia-Frank, Kg | Ventilation appliance |
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