GB1174591A - Improvements in or relating to Fans and Pumps - Google Patents

Improvements in or relating to Fans and Pumps

Info

Publication number
GB1174591A
GB1174591A GB319866A GB319866A GB1174591A GB 1174591 A GB1174591 A GB 1174591A GB 319866 A GB319866 A GB 319866A GB 319866 A GB319866 A GB 319866A GB 1174591 A GB1174591 A GB 1174591A
Authority
GB
United Kingdom
Prior art keywords
blades
degrees
casing
pump
flow
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
GB319866A
Inventor
Joseph Henry Preston
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB319866A priority Critical patent/GB1174591A/en
Publication of GB1174591A publication Critical patent/GB1174591A/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D7/00—Rotors with blades adjustable in operation; Control thereof
    • 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
    • F05D2260/00—Function
    • F05D2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05D2260/74—Adjusting of angle of incidence or attack of rotating blades by turning around an axis perpendicular the rotor centre line
    • 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
    • F05D2260/00—Function
    • F05D2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05D2260/76—Adjusting of angle of incidence or attack of rotating blades the adjusting mechanism using auxiliary power sources

Landscapes

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

Abstract

1,174,591. Mixed-flow pumps and fans. NATIONAL RESEARCH DEVELOPMENT CORP. April 24, 1967 [Jan. 24, 1966], No.3198/66. Heading F1C. In a mixed-flow pump or fan, the angular inclination relative to the rotor axis 3 of the axis 19A of the length of each rotor blade 19 in a plane containing those two axes can be varied so as to vary the relative proportions of the radial-flow action and axial-flow action. The angle can be varied from 90 degrees down to 45 degrees as shown or even down to 0 degrees. The pivot points of the blades may lie on a circle concentric with the motor 5, the surrounding part of the casing 1 having as axial cross-section the centre of curvature of each point of which lies on the circle. The blades may be adjusted by a reversible hydraulic motor mounted in the rotor 5 and driven by liquid supplied through passages 33 provided in the shaft 7. The liquid may be the same as that handled by the pump so that leakage will not affect the purity of the pumped liquid. The blades may instead be adjusted by a mechanical linkage inside the pump casing and actuated by a screw or shaft from outside the casing. Or, electrically driven jacks may be used. The blades may also be of variable pitch or twist.
GB319866A 1966-01-24 1966-01-24 Improvements in or relating to Fans and Pumps Expired GB1174591A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB319866A GB1174591A (en) 1966-01-24 1966-01-24 Improvements in or relating to Fans and Pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB319866A GB1174591A (en) 1966-01-24 1966-01-24 Improvements in or relating to Fans and Pumps

Publications (1)

Publication Number Publication Date
GB1174591A true GB1174591A (en) 1969-12-17

Family

ID=9753808

Family Applications (1)

Application Number Title Priority Date Filing Date
GB319866A Expired GB1174591A (en) 1966-01-24 1966-01-24 Improvements in or relating to Fans and Pumps

Country Status (1)

Country Link
GB (1) GB1174591A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2291134A (en) * 1994-07-02 1996-01-17 Nuaire Ltd Fan assembly
WO1997006369A1 (en) * 1995-08-10 1997-02-20 Elta Fans Limited Fluid impeller

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2291134A (en) * 1994-07-02 1996-01-17 Nuaire Ltd Fan assembly
GB2291134B (en) * 1994-07-02 1998-07-22 Nuaire Ltd Fan assembly
WO1997006369A1 (en) * 1995-08-10 1997-02-20 Elta Fans Limited Fluid impeller
AU699643B2 (en) * 1995-08-10 1998-12-10 Elta Fans Limited Fluid impeller
US6547517B1 (en) 1995-08-10 2003-04-15 Elta Fans Limited Fluid impeller

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees