GB707844A - Device for reversing fan blades - Google Patents

Device for reversing fan blades

Info

Publication number
GB707844A
GB707844A GB17317/52A GB1731752A GB707844A GB 707844 A GB707844 A GB 707844A GB 17317/52 A GB17317/52 A GB 17317/52A GB 1731752 A GB1731752 A GB 1731752A GB 707844 A GB707844 A GB 707844A
Authority
GB
United Kingdom
Prior art keywords
disc
pin
impeller
restrained
july
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
GB17317/52A
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.)
Svenska Flaktfabriken AB
Original Assignee
Svenska Flaktfabriken AB
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 Svenska Flaktfabriken AB filed Critical Svenska Flaktfabriken AB
Publication of GB707844A publication Critical patent/GB707844A/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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/34—Blade mountings
    • F04D29/36—Blade mountings adjustable
    • F04D29/362—Blade mountings adjustable during rotation

Landscapes

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

Abstract

707,844. Axial-flow fans. AKTIEBOLAGET SVENSKA FLAKTFABRIKEN. July 9, 1952 [July 13, 1951], No. 17317/52. Class 110(1) Means for reversing the pitch of the impeller blades 16 of a fan comprises an axially slidable disc 7 coaxial with but restrained from rotation relative to the impeller 6b by means of a guide pin 8 carried by the impeller; the spindle 15 of each blade 16 carries a crank 11 having a pin 10 which engages a recess in the circumference of the disc 7. Each pin 10 has a ball end 9. The disc 7 is moved axially by means of a worm 1 meshing with a worm wheel 2 formed with an internally threaded portion which engages a screw 3b. The latter is restrained from rotation by the engagement of a stationary pin 3c with a longitudinal groove 3d and is connected to the disc 7 through a bearing 4 and a hub 5.
GB17317/52A 1951-07-13 1952-07-09 Device for reversing fan blades Expired GB707844A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE707844X 1951-07-13

Publications (1)

Publication Number Publication Date
GB707844A true GB707844A (en) 1954-04-21

Family

ID=20315642

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17317/52A Expired GB707844A (en) 1951-07-13 1952-07-09 Device for reversing fan blades

Country Status (1)

Country Link
GB (1) GB707844A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102493964A (en) * 2011-12-29 2012-06-13 鞍山风机集团有限责任公司 Moving blade regulating device for axial flow fan
GB2538393A (en) * 2015-05-12 2016-11-16 Snecma A lever arm device for controlling the pitch of fan blades of a turbine engine having an unducted fan

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102493964A (en) * 2011-12-29 2012-06-13 鞍山风机集团有限责任公司 Moving blade regulating device for axial flow fan
GB2538393A (en) * 2015-05-12 2016-11-16 Snecma A lever arm device for controlling the pitch of fan blades of a turbine engine having an unducted fan
GB2538393B (en) * 2015-05-12 2020-05-06 Snecma A lever arm device for controlling the pitch of fan blades of a turbine engine having an unducted fan

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