GB351760A - Improvements in or relating to rotary fans - Google Patents

Improvements in or relating to rotary fans

Info

Publication number
GB351760A
GB351760A GB21285/30A GB2128530A GB351760A GB 351760 A GB351760 A GB 351760A GB 21285/30 A GB21285/30 A GB 21285/30A GB 2128530 A GB2128530 A GB 2128530A GB 351760 A GB351760 A GB 351760A
Authority
GB
United Kingdom
Prior art keywords
inlet
damper
fan
vanes
outlet
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
Application number
GB21285/30A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BF Sturtevant Co
Original Assignee
BF Sturtevant Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BF Sturtevant Co filed Critical BF Sturtevant Co
Publication of GB351760A publication Critical patent/GB351760A/en
Expired legal-status Critical Current

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
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/462—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps
    • F04D29/464—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps adjusting flow cross-section, otherwise than by using adjustable stator blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/009—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by bleeding, by passing or recycling fluid
    • 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
    • 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
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/462—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/51—Inlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L2700/00—Installations for increasing draught in chimneys; Specific draught control devices for locomotives
    • F23L2700/001—Installations for increasing draught in chimneys

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)

Abstract

351,760. Centrifugal fans. STURTEVANT CO., B. F., 6, Damon Street, Hyde Park, Boston, U.S.A.-(Assignees of Hagen, H. F. ; Dedham, Massachusetts, U.S.A.) July 14, 1930, No. 21285. Convention date, Oct. 31, 1929. [Class 110 (i).] A centrifugal fan is provided with means for controlling the flow of fluid through the fan, and a byepass which permits the passage of fluid from inlet to outlet round the control means. An induced draught fan connected to a stack has blades 6 on a shaft 4 in a casing with an outlet 10 and an inlet chamber 8 at each end. Control of the flow is obtained by vanes 12 in the inlet chambers ; these vanes can be adjusted to vary the spin velocity of the entering gas. The plate 14 between each inlet chamber 8 and the fan chamber is provided with a byepass opening 16 normally closed by a damper 18 secured to a spindle 24 journalled in bearings 26, 28. A counterweight 34 is adjusted so that the damper swings to its open position when the pressure in the inlet is slightly higher than that in the outlet. Stops 38 on arms 40 limit the movement of the damper. During normal operation the damper remains closed ; with a light load, the vanes 12 are adjusted and may be entirely closed so that the entering gas passes through the leakage spaces. With still lighter loads the fan is shut down, and if the passage through the vanes 12, whether they be open or shut, is not sufficiently large, the damper 18 will open and gas will pass directly from the inlet 8 to the outlet 10 and the stack. Specification 295,018, [Class 110 (i), Centrifugal and screw fans &c.], is referred to.
GB21285/30A 1929-10-31 1930-07-14 Improvements in or relating to rotary fans Expired GB351760A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US403752A US1935120A (en) 1929-10-31 1929-10-31 Fan

Publications (1)

Publication Number Publication Date
GB351760A true GB351760A (en) 1931-07-02

Family

ID=23596873

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21285/30A Expired GB351760A (en) 1929-10-31 1930-07-14 Improvements in or relating to rotary fans

Country Status (4)

Country Link
US (1) US1935120A (en)
DE (1) DE578157C (en)
FR (1) FR699227A (en)
GB (1) GB351760A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1211746B (en) * 1956-01-07 1966-03-03 Dresser Ind Device for adjusting radial guide vanes of a centrifugal compressor
US2973135A (en) * 1956-12-21 1961-02-28 Garrett Corp Seal for refrigerant compressor
US4490602A (en) * 1983-02-18 1984-12-25 Naoki Ishihara Air flow adjusting mechanism for hand held hot air hair dryer
DE3447007A1 (en) * 1984-12-21 1986-06-26 Webasto-Werk W. Baier GmbH & Co, 8035 Gauting SIDE CHANNEL BLOWER
US8591183B2 (en) * 2007-06-14 2013-11-26 Regal Beloit America, Inc. Extended length cutoff blower
US8025049B2 (en) * 2007-11-06 2011-09-27 Rbc Horizon, Inc. High efficiency furnace having a blower housing with an enlarged air outlet opening
US8550066B2 (en) * 2007-11-06 2013-10-08 Regal Beloit America, Inc. High efficiency furnace/air handler blower housing with a side wall having an exponentially increasing expansion angle
US8001958B2 (en) * 2007-11-06 2011-08-23 Rbc Horizon, Inc. Furnace air handler blower housing with an enlarged air outlet opening
US20110189005A1 (en) * 2010-08-11 2011-08-04 Rbc Horizon, Inc. Low Profile, High Efficiency Blower Assembly
US9017011B2 (en) 2011-12-29 2015-04-28 Regal Beloit America, Inc. Furnace air handler blower with enlarged backward curved impeller and associated method of use
CN107061364A (en) * 2017-04-25 2017-08-18 荆门市希济太机械科技有限公司 A kind of corner may bring up air port
CN107061365A (en) * 2017-04-25 2017-08-18 荆门市希济太机械科技有限公司 A kind of adjustable air outlet of corner
CN107061334A (en) * 2017-04-25 2017-08-18 荆门市希济太机械科技有限公司 A kind of corner regulating air outlet device

Also Published As

Publication number Publication date
DE578157C (en) 1933-06-10
FR699227A (en) 1931-02-12
US1935120A (en) 1933-11-14

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