GB647127A - Multi-stage axial flow fans - Google Patents

Multi-stage axial flow fans

Info

Publication number
GB647127A
GB647127A GB3291145A GB3291145A GB647127A GB 647127 A GB647127 A GB 647127A GB 3291145 A GB3291145 A GB 3291145A GB 3291145 A GB3291145 A GB 3291145A GB 647127 A GB647127 A GB 647127A
Authority
GB
United Kingdom
Prior art keywords
impellers
shaft
field
armature
bearings
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
GB3291145A
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.)
ROBERT FRANK BROWN
Woods of Colchester Ltd
Original Assignee
ROBERT FRANK BROWN
Woods of Colchester 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 ROBERT FRANK BROWN, Woods of Colchester Ltd filed Critical ROBERT FRANK BROWN
Priority to GB3291145A priority Critical patent/GB647127A/en
Publication of GB647127A publication Critical patent/GB647127A/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
    • F04D19/00—Axial-flow pumps
    • F04D19/02—Multi-stage pumps
    • F04D19/024—Multi-stage pumps with contrarotating parts

Abstract

647,127. Fans. WOODS OF COLCHESTER, Ltd., DALY, B. B., and BROWN, R. F. Dec. 5, 1945, No. 32911. [Class 110(i)] In an axial-flow fan having contrarotating impellers the driving torque in one direction of rotation is made substantially equal to that in the other, preferably by arranging that the two torques are reactions of one another. This may be achieved by drive from a single motor through differential gearing, for example through a driven planet-pinion carrier with planet pinions engaging a sun wheel on one impeller directly and a sun wheel on the other impeller through an idler gear, or by using two electric motors with identical fields and similar armatures connected in series; a simpler method is to make both armature and field of a motor freely rotatable and connect each to one of the impellers. In the embodiment shown, a squirrel-cage motor has its armature 5 carried on a shaft mounted in bearings in spiders 2 in a casing 1 and its field 9 mounted on bearings 6 on the shaft; the shaft carries impellers 14, 17 at its ends and the field structure carries impellers 15, 16 of opposite hand. The impellers are all similar, but the forms of the blades receiving rotating air may differ from the others; in a modification, the impellers 15, 16 are combined into one with large blades suitably designed. Reference has been directed by the Comptroller to Specification 399,619.
GB3291145A 1945-12-05 1945-12-05 Multi-stage axial flow fans Expired GB647127A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3291145A GB647127A (en) 1945-12-05 1945-12-05 Multi-stage axial flow fans

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3291145A GB647127A (en) 1945-12-05 1945-12-05 Multi-stage axial flow fans

Publications (1)

Publication Number Publication Date
GB647127A true GB647127A (en) 1950-12-06

Family

ID=10345843

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3291145A Expired GB647127A (en) 1945-12-05 1945-12-05 Multi-stage axial flow fans

Country Status (1)

Country Link
GB (1) GB647127A (en)

Similar Documents

Publication Publication Date Title
US2318990A (en) Radial flow elastic fluid turbine or compressor
GB589099A (en) Improvements in or relating to power plants
CA2516273A1 (en) Automotive air blowers
GB1149857A (en) Alternators
US3153907A (en) Power plant for driving fluid impeller means
GB1228678A (en)
GB1178146A (en) Improvements in Screw Compressor Units
GB1010679A (en) Improvements in units comprising a rapidly rotating pump or motor in combination with a gearing system
GB647127A (en) Multi-stage axial flow fans
GB1000877A (en) Improvements in or relating to rotary blowers or compressors
SE7704910L (en) DRIVE FOR COMPRESSOR
GB992651A (en) Improvements in centrifugal compressors
US2188546A (en) Fluid motor
GB399619A (en) Improvements in or relating to multi-stage propeller fans
US2431318A (en) Turbo planetary transmission
GB967091A (en) Improvements in or relating to three-stage radial-flow compressors
GB921080A (en) Drive for blowers and fans
GB658778A (en) Improvements relating to rotary fluid machine assemblies
GB1116430A (en) Improvements in or relating to contra-rotating multi-stage turbines, fans or compressors
GB612709A (en) Improvements relating to gear mechanism for power drives
GB967328A (en) Infinitely variable hydrostatically torque bridged epicyclic gear
US2227336A (en) Hydraulic coupling and turbotorque transmitter
GB1519368A (en) Air separator
EP0376672A3 (en) A torque transmission device
GB938148A (en) Improvements in or relating to motor driven blower units