GB664011A - Improvements in or relating to ventilating fans - Google Patents

Improvements in or relating to ventilating fans

Info

Publication number
GB664011A
GB664011A GB24053/49A GB2405349A GB664011A GB 664011 A GB664011 A GB 664011A GB 24053/49 A GB24053/49 A GB 24053/49A GB 2405349 A GB2405349 A GB 2405349A GB 664011 A GB664011 A GB 664011A
Authority
GB
United Kingdom
Prior art keywords
casing
trunnions
fan unit
doors
unit
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
GB24053/49A
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.)
Davidson and Co Ltd
Original Assignee
Davidson and Co Ltd
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 Davidson and Co Ltd filed Critical Davidson and Co Ltd
Priority to GB24053/49A priority Critical patent/GB664011A/en
Publication of GB664011A publication Critical patent/GB664011A/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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/64—Mounting; Assembling; Disassembling of axial pumps
    • F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
    • F04D29/646—Mounting or removal of fans

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

664,011. Screw fans. DAVIDSON & CO., Ltd., and MACFARLANE, D. Sept. 19,1949, No. 24053/49. Class 110(i) In a ventilating unit comprising a fan unit pivotally mounted on trunnions within a casing so that it can be turned relative to the casing. through an angle of 180 degrees about an axis transverse to the axis of the fan unit and casing, the casing is provided with one or more doors to allow the fan unit to be turned. The fan unit, Figs. 1 and 2, comprising a motor 10 and impeller 12, is mounted on trunnions 24 pivoted in bearings 25. The unit is secured in either of its two positions by a locating ring 27 which is fixed to one trunnion 24 and carries a bolt which engages one of two diametrically opposed sockets 29. Current is supplied to the motor cable 33 by way of slip rings 32 contacted by stationary brushes. Alternatively, a flexible cable is used. The fan casing 14, which has flanged ends 15 for bolting to the ducts of a ventilating system, has hinged doors 19 which are opened as shown when a reversal is to be made. Alternatively, the doors may slide longitudinally. In a modified construction (not shown), the trunnions 24 are located nearer to the tip of the motor fairing 11, so that the latter swings entirely within the casing 14 when a reversal is being made, so that only one door 19 is required. Fig. 5 shows an embodiment in which two contra-rotating impellers 39, 40 are driven by separate motors 36, 37 mounted in a common carcase 38. A bearing bracket 41 may be integral with or attached to the trunnions 24 and/or the carcase 38.
GB24053/49A 1949-09-19 1949-09-19 Improvements in or relating to ventilating fans Expired GB664011A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB24053/49A GB664011A (en) 1949-09-19 1949-09-19 Improvements in or relating to ventilating fans

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB24053/49A GB664011A (en) 1949-09-19 1949-09-19 Improvements in or relating to ventilating fans

Publications (1)

Publication Number Publication Date
GB664011A true GB664011A (en) 1952-01-02

Family

ID=10205622

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24053/49A Expired GB664011A (en) 1949-09-19 1949-09-19 Improvements in or relating to ventilating fans

Country Status (1)

Country Link
GB (1) GB664011A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1014281B (en) * 1955-01-13 1957-08-22 Reinfried Hildebrand Axial blower, in particular circulation blower for hot air drying systems
DE1038706B (en) * 1955-03-25 1958-09-11 Emil Siegwart Axial fan or blower for conveying gases in opposite directions of flow
US2932441A (en) * 1958-08-27 1960-04-12 American Machine & Metals Fan
US2981464A (en) * 1958-07-22 1961-04-25 Gen Electric Multiple propeller fan
US2984407A (en) * 1958-12-15 1961-05-16 Mclarty Gordon Draft inducing fan
DE1159855B (en) * 1959-11-05 1963-12-19 Benno Schilde Maschb A G Dryer air duct with swiveling axial fan
US4132507A (en) * 1977-07-13 1979-01-02 Kabushiki Kaisha Shikutani Blowing apparatus
US4142828A (en) * 1976-06-04 1979-03-06 Mitsubishi Jukogyo Kabushiki Kaisha Openable rotor chamber construction for a vertical blower
US4764083A (en) * 1985-08-19 1988-08-16 Hitachi, Ltd. Discharge ring supporting structure of adjustable-blade axial-flow turbine
WO2005050026A1 (en) * 2003-11-18 2005-06-02 Distributed Thermal Systems Ltd. Heater fan with integrated flow control element
EP1936291A2 (en) * 2006-12-20 2008-06-25 NuAire Limited Ventilation system
EP2716915A1 (en) * 2012-10-08 2014-04-09 ebm-papst Mulfingen GmbH & Co. KG Housing for an axial ventilator

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1014281B (en) * 1955-01-13 1957-08-22 Reinfried Hildebrand Axial blower, in particular circulation blower for hot air drying systems
DE1038706B (en) * 1955-03-25 1958-09-11 Emil Siegwart Axial fan or blower for conveying gases in opposite directions of flow
US2981464A (en) * 1958-07-22 1961-04-25 Gen Electric Multiple propeller fan
US2932441A (en) * 1958-08-27 1960-04-12 American Machine & Metals Fan
US2984407A (en) * 1958-12-15 1961-05-16 Mclarty Gordon Draft inducing fan
DE1159855B (en) * 1959-11-05 1963-12-19 Benno Schilde Maschb A G Dryer air duct with swiveling axial fan
US4142828A (en) * 1976-06-04 1979-03-06 Mitsubishi Jukogyo Kabushiki Kaisha Openable rotor chamber construction for a vertical blower
US4132507A (en) * 1977-07-13 1979-01-02 Kabushiki Kaisha Shikutani Blowing apparatus
US4764083A (en) * 1985-08-19 1988-08-16 Hitachi, Ltd. Discharge ring supporting structure of adjustable-blade axial-flow turbine
WO2005050026A1 (en) * 2003-11-18 2005-06-02 Distributed Thermal Systems Ltd. Heater fan with integrated flow control element
EP1936291A2 (en) * 2006-12-20 2008-06-25 NuAire Limited Ventilation system
EP1936291A3 (en) * 2006-12-20 2011-03-02 NuAire Limited Ventilation system
EP2716915A1 (en) * 2012-10-08 2014-04-09 ebm-papst Mulfingen GmbH & Co. KG Housing for an axial ventilator
WO2014056630A1 (en) * 2012-10-08 2014-04-17 Ebm-Papst Mulfingen Gmbh & Co. Kg Housing for an axial fan
CN104755764A (en) * 2012-10-08 2015-07-01 依必安-派特穆尔芬根股份有限两合公司 Housing for an axial fan
CN104755764B (en) * 2012-10-08 2017-03-08 依必安-派特穆尔芬根股份有限两合公司 Housing for axial fan
US10107306B2 (en) 2012-10-08 2018-10-23 Ebm-Papst Mulfingen Gmbh & Co. Kg Housing for an axial fan

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