GB408325A - Improvements in or relating to rotary fans - Google Patents
Improvements in or relating to rotary fansInfo
- Publication number
- GB408325A GB408325A GB2807232A GB2807232A GB408325A GB 408325 A GB408325 A GB 408325A GB 2807232 A GB2807232 A GB 2807232A GB 2807232 A GB2807232 A GB 2807232A GB 408325 A GB408325 A GB 408325A
- Authority
- GB
- United Kingdom
- Prior art keywords
- inlet
- diaphragm
- fan
- spiral
- vortex
- 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
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
- F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
408,325. Rotary fans. WORKMAN, R. E., 41, Hamilton Drive, Glasgow. Oct. 8, 1932, No. 28072. [Class 110 (i).] A rotary fan A<1> is housed in a volute casing A, and another volute casing B with a tangential inlet B<1> conducts the entering air to the fan inlet C by a converging spiral path about an axis coincident with the impeller axis. A diaphragm D is fitted in the casing B and is movable laterally towards or from the inlet C to vary the cross-sectional area of the spiral inlet passage, and thus vary the tangential velocity component of the entering air and the fan output. A plate G hinged on a pin G<1> guides the air passing into the spiral inlet. A baffle plate E on a pivot F traverses an aperture in the diaphragm ; it is placed in its radial position E<1> to prevent the formation of a vortex when the diaphragm D is placed at its maximum distance from the inlet C, and inits position E<2> to assist in the formation of a vortex when the diaphragm is moved inwards to reduce the fan output.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2807232A GB408325A (en) | 1932-10-08 | 1932-10-08 | Improvements in or relating to rotary fans |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2807232A GB408325A (en) | 1932-10-08 | 1932-10-08 | Improvements in or relating to rotary fans |
Publications (1)
Publication Number | Publication Date |
---|---|
GB408325A true GB408325A (en) | 1934-04-09 |
Family
ID=10269821
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2807232A Expired GB408325A (en) | 1932-10-08 | 1932-10-08 | Improvements in or relating to rotary fans |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB408325A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3042291A (en) * | 1959-06-01 | 1962-07-03 | Garrett Corp | Variable head compressor |
FR2457399A1 (en) * | 1979-05-23 | 1980-12-19 | Citroen Sa | Silencer for axial suction fan with radial feed pipe - has exponentially decreasing cross=section and is inclined to perpendicular to shaft to impart spiral trajectory on intake air |
FR2507701A1 (en) * | 1981-06-15 | 1982-12-17 | Garrett Corp | PROCESS FOR ATTENUATING SIFFLEMENT NOISE IN A TURBO GAS FLOW, ESPECIALLY COMPRESSOR SUCTION, AND CORRESPONDING SILENCING SYSTEM |
EP0126221A2 (en) * | 1983-03-02 | 1984-11-28 | Hans Dr. Viessmann | Forced-draught burner for heating-boiler doors |
FR2572140A1 (en) * | 1984-10-10 | 1986-04-25 | Do Politekh Inst | FAN |
EP0185900A1 (en) * | 1984-11-12 | 1986-07-02 | SIEGLE + EPPLE GmbH & Co., KG | Ventilator air flow regulation arrangement |
NL1029313C2 (en) * | 2005-06-22 | 2006-12-27 | Innosource B V | Air outlet device for building ventilation, has air inlet opening central axis located at distance from air supply opening central axis |
-
1932
- 1932-10-08 GB GB2807232A patent/GB408325A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3042291A (en) * | 1959-06-01 | 1962-07-03 | Garrett Corp | Variable head compressor |
FR2457399A1 (en) * | 1979-05-23 | 1980-12-19 | Citroen Sa | Silencer for axial suction fan with radial feed pipe - has exponentially decreasing cross=section and is inclined to perpendicular to shaft to impart spiral trajectory on intake air |
FR2507701A1 (en) * | 1981-06-15 | 1982-12-17 | Garrett Corp | PROCESS FOR ATTENUATING SIFFLEMENT NOISE IN A TURBO GAS FLOW, ESPECIALLY COMPRESSOR SUCTION, AND CORRESPONDING SILENCING SYSTEM |
EP0126221A2 (en) * | 1983-03-02 | 1984-11-28 | Hans Dr. Viessmann | Forced-draught burner for heating-boiler doors |
EP0126221A3 (en) * | 1983-03-02 | 1986-02-12 | Hans Dr. Viessmann | Forced-draught burner for heating-boiler doors |
FR2572140A1 (en) * | 1984-10-10 | 1986-04-25 | Do Politekh Inst | FAN |
EP0185900A1 (en) * | 1984-11-12 | 1986-07-02 | SIEGLE + EPPLE GmbH & Co., KG | Ventilator air flow regulation arrangement |
NL1029313C2 (en) * | 2005-06-22 | 2006-12-27 | Innosource B V | Air outlet device for building ventilation, has air inlet opening central axis located at distance from air supply opening central axis |
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