GB402782A - Improvements in or relating to screw rotors for high speed axial flow machines - Google Patents

Improvements in or relating to screw rotors for high speed axial flow machines

Info

Publication number
GB402782A
GB402782A GB15337/32A GB1533732A GB402782A GB 402782 A GB402782 A GB 402782A GB 15337/32 A GB15337/32 A GB 15337/32A GB 1533732 A GB1533732 A GB 1533732A GB 402782 A GB402782 A GB 402782A
Authority
GB
United Kingdom
Prior art keywords
blade
radius
pitch
radii
boss
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
GB15337/32A
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 GB15337/32A priority Critical patent/GB402782A/en
Priority to DK48442D priority patent/DK48442C/en
Priority to DEG85410D priority patent/DE660275C/en
Priority to NL65469A priority patent/NL38064C/xx
Priority to CH169792D priority patent/CH169792A/en
Publication of GB402782A publication Critical patent/GB402782A/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
    • F04D29/38—Blades
    • F04D29/384—Blades characterised by form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14—Propellers
    • B63H1/20—Hubs; Blade connections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14—Propellers
    • B63H1/26—Blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/16—Blades
    • 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
    • F04D29/38—Blades

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

402,782. Screw propellers. GILL, J. H. W., 33, Earl's Court Gardens, London. May 30, 1932, No. 15337. [Class 114.] In screw rotors, such as propellers, pumps and turbines, the pitch at the working edge of each blade varies radially so that the product of the pitch multiplied by the radius either has a minimum value at a position whose radial distance from the axis is not greater than the normal design mid-blade radius and increases from such value both inwards toward the boss and outward toward the blade tip, or in the limiting case is constant at all radii. Also the width of each blade either decreases radially both inwards and outwards from a maximum value at a radial position not greater than the normal mid-blade radius, or is constant at all radii. The six-bladed rotor A has its blades carried by a boss B of radius approximately .43 of the tip radius. The pitch at the working edge C is given by a curve D of which the abscissµ are radial distances. The curve E on the same basis indicates the width of the blade. The surfaces containing the leading and following edges H, C are preferably symmetrically disposed in respect to the central line and the thickest portion of the section is indicated by chain lines J, representing such thickness. The blades may be mounted so as to be capable of a five degree adjustment. Specification 348,032* is referred to.
GB15337/32A 1932-05-30 1932-05-30 Improvements in or relating to screw rotors for high speed axial flow machines Expired GB402782A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB15337/32A GB402782A (en) 1932-05-30 1932-05-30 Improvements in or relating to screw rotors for high speed axial flow machines
DK48442D DK48442C (en) 1932-05-30 1933-04-25 Screw rotor for fast-running Axial flow machines.
DEG85410D DE660275C (en) 1932-05-30 1933-04-27 Impeller for axial passage of the conveyor
NL65469A NL38064C (en) 1932-05-30 1933-05-29
CH169792D CH169792A (en) 1932-05-30 1933-05-29 Propeller rotor.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB15337/32A GB402782A (en) 1932-05-30 1932-05-30 Improvements in or relating to screw rotors for high speed axial flow machines

Publications (1)

Publication Number Publication Date
GB402782A true GB402782A (en) 1933-11-30

Family

ID=10057322

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15337/32A Expired GB402782A (en) 1932-05-30 1932-05-30 Improvements in or relating to screw rotors for high speed axial flow machines

Country Status (5)

Country Link
CH (1) CH169792A (en)
DE (1) DE660275C (en)
DK (1) DK48442C (en)
GB (1) GB402782A (en)
NL (1) NL38064C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1210121B (en) * 1954-02-20 1966-02-03 Maico Elektroapp Fabrik G M B Fan blades for table, wall, ceiling and other fans
DE1231388B (en) * 1957-04-16 1966-12-29 Av System Oy Impeller, propeller or the like to generate an axial flow
DE3802949A1 (en) * 1988-02-02 1989-08-10 Klein Schanzlin & Becker Ag Air ventilator with small capacity in water operation
DE19651736A1 (en) * 1996-12-12 1998-06-18 Andreas Dr Keller Water turbine or pump
FR2784422B3 (en) * 1998-10-12 2000-09-22 Ecia Equip Composants Ind Auto IMPROVED PROPELLER AND MOTOR-FAN GROUP PROVIDED WITH THIS PROPELLER

Also Published As

Publication number Publication date
NL38064C (en) 1936-04-17
DE660275C (en) 1938-05-25
CH169792A (en) 1934-06-15
DK48442C (en) 1934-02-26

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