FR2290589B3 - - Google Patents
Info
- Publication number
- FR2290589B3 FR2290589B3 FR7533769A FR7533769A FR2290589B3 FR 2290589 B3 FR2290589 B3 FR 2290589B3 FR 7533769 A FR7533769 A FR 7533769A FR 7533769 A FR7533769 A FR 7533769A FR 2290589 B3 FR2290589 B3 FR 2290589B3
- Authority
- FR
- France
- 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
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
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
- F04D29/526—Details of the casing section radially opposing blade tips
-
- 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
- F04D29/663—Sound attenuation
- F04D29/664—Sound attenuation by means of sound absorbing material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Exhaust Silencers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49127804A JPS5153606A (en) | 1974-11-05 | 1974-11-05 | Puroperafuanno soonboshofuanringu |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2290589A1 FR2290589A1 (en) | 1976-06-04 |
| FR2290589B3 true FR2290589B3 (en) | 1979-09-21 |
Family
ID=14969076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7533769A Granted FR2290589A1 (en) | 1974-11-05 | 1975-11-05 | NOISE SUPPRESSING FAN RING FOR PROPELLER FAN |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5153606A (en) |
| BR (1) | BR7507271A (en) |
| DE (1) | DE2548999B2 (en) |
| FR (1) | FR2290589A1 (en) |
| GB (1) | GB1514584A (en) |
| IT (1) | IT1049003B (en) |
| NL (1) | NL7512418A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5380106U (en) * | 1976-12-07 | 1978-07-04 | ||
| ZA783845B (en) * | 1977-07-13 | 1979-07-25 | Carrier Corp | Pressure variation absorber |
| FR2414649A1 (en) * | 1978-01-12 | 1979-08-10 | Etri Sa | Axial flow ventilator fan - has shroud in square housing with sound absorbing material in corner spaces |
| DE3927791A1 (en) * | 1989-08-23 | 1991-02-28 | Gebhardt Ventilatoren | AXIAL FAN |
| GB2330624A (en) * | 1997-10-23 | 1999-04-28 | Wang Samw Hong Jen | Fan device with noise reduction |
| NL1034926C2 (en) * | 2008-01-18 | 2009-07-21 | Holland Conditioning Parkeersystemen Bv | Fan device with motor suspension. |
| IT1403249B1 (en) * | 2010-11-19 | 2013-10-17 | Luve Spa | MUFFLER DEVICE, PARTICULARLY FOR FANS OF AERO-EXCHANGER AND SIMILAR. |
| CN104454587B (en) * | 2014-11-12 | 2017-02-08 | 华为技术有限公司 | Fan |
| GB201707836D0 (en) | 2017-05-16 | 2017-06-28 | Oscar Propulsion Ltd | Outlet guide vanes |
-
1974
- 1974-11-05 JP JP49127804A patent/JPS5153606A/en active Pending
-
1975
- 1975-10-23 NL NL7512418A patent/NL7512418A/en unknown
- 1975-10-27 GB GB44185/75A patent/GB1514584A/en not_active Expired
- 1975-10-28 IT IT28749/75A patent/IT1049003B/en active
- 1975-11-03 DE DE2548999A patent/DE2548999B2/en not_active Ceased
- 1975-11-04 BR BR7507271*A patent/BR7507271A/en unknown
- 1975-11-05 FR FR7533769A patent/FR2290589A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| IT1049003B (en) | 1981-01-20 |
| GB1514584A (en) | 1978-06-14 |
| JPS5153606A (en) | 1976-05-12 |
| FR2290589A1 (en) | 1976-06-04 |
| DE2548999A1 (en) | 1976-05-13 |
| DE2548999B2 (en) | 1978-12-14 |
| BR7507271A (en) | 1976-08-03 |
| NL7512418A (en) | 1976-05-07 |