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GB408325A - Improvements in or relating to rotary fans - Google Patents

Improvements in or relating to rotary fans

Info

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
Application number
GB2807232A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2807232A priority Critical patent/GB408325A/en
Publication of GB408325A publication Critical patent/GB408325A/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
    • F04D29/4206—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.
GB2807232A 1932-10-08 1932-10-08 Improvements in or relating to rotary fans Expired GB408325A (en)

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 (8)

* Cited by examiner, † Cited by third party
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
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 &amp; Co., KG Ventilator air flow regulation arrangement
NL1029313C2 (en) * 2005-06-22 2006-12-27 Innosource B V Air exhaust device.
CN111472996A (en) * 2020-05-11 2020-07-31 佛山市顺德区美的洗涤电器制造有限公司 Fan subassembly and integrated kitchen appliance

Cited By (8)

* Cited by examiner, † Cited by third party
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
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 &amp; Co., KG Ventilator air flow regulation arrangement
NL1029313C2 (en) * 2005-06-22 2006-12-27 Innosource B V Air exhaust device.
CN111472996A (en) * 2020-05-11 2020-07-31 佛山市顺德区美的洗涤电器制造有限公司 Fan subassembly and integrated kitchen appliance

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