[go: up one dir, main page]

GB992266A - Axial-flow blower - Google Patents

Axial-flow blower

Info

Publication number
GB992266A
GB992266A GB15712/62A GB1571262A GB992266A GB 992266 A GB992266 A GB 992266A GB 15712/62 A GB15712/62 A GB 15712/62A GB 1571262 A GB1571262 A GB 1571262A GB 992266 A GB992266 A GB 992266A
Authority
GB
United Kingdom
Prior art keywords
casing
axial
shroud ring
ring
blades
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
GB15712/62A
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
Publication of GB992266A publication Critical patent/GB992266A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
    • 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
    • F04D29/08—Sealings
    • F04D29/16—Sealings between pressure and suction sides
    • F04D29/161—Sealings between pressure and suction sides especially adapted for elastic fluid pumps
    • F04D29/164—Sealings between pressure and suction sides especially adapted for elastic fluid pumps of an axial flow wheel
    • 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
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • F04D29/326—Rotors specially for elastic fluids for axial flow pumps for axial flow fans comprising a rotating shroud
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/545—Ducts
    • F04D29/547—Ducts having a special shape in order to influence fluid flow

Landscapes

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

Abstract

992,266. Axial-flow blowers. T. HELMBOLD. April 25, 1962 [Sept. 11, 1961], No. 15712/62. Drawings to Specification. Heading F1C. In an axial-flow blower including a casing; radial rotor blades in the casing and a shroud ring surrounding and rotating with the blades, the shroud ring extends in both axial directions for a substantial distance beyond the blades, and the casing has an intake nozzle having at its end adjacent the shroud ring an internal diameter substantially equal to the internal diameter of the adjacent end of the shroud ring. This arrangement reduces backflow at the blade tips and noise. The shroud ring may be frustoconical. The casing may have a recess receiving the ring and labyrinth packings may be arranged in the recess, between the ring and casing.
GB15712/62A 1961-09-11 1962-04-25 Axial-flow blower Expired GB992266A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEH0043616 1961-09-11
DEH0047156 1962-10-16

Publications (1)

Publication Number Publication Date
GB992266A true GB992266A (en) 1965-05-19

Family

ID=25979815

Family Applications (2)

Application Number Title Priority Date Filing Date
GB15712/62A Expired GB992266A (en) 1961-09-11 1962-04-25 Axial-flow blower
GB38746/63A Expired GB1005139A (en) 1961-09-11 1963-10-02 Axial-flow blower

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB38746/63A Expired GB1005139A (en) 1961-09-11 1963-10-02 Axial-flow blower

Country Status (2)

Country Link
CH (2) CH413197A (en)
GB (2) GB992266A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2029515A (en) * 1978-08-30 1980-03-19 Propeller Design Ltd Marine ring propeller
FR2531149A1 (en) * 1982-07-29 1984-02-03 Do G Pk I Experiment AXIAL FAN
GB2276672A (en) * 1993-03-27 1994-10-05 Deutsche Forsch Luft Raumfahrt Flow machine and method for the reduction of sound emission and improvement of the air output and efficiency therein

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4786231A (en) * 1986-12-01 1988-11-22 Kelley Winfield L Noise attenuating and air streamlining spiral
DE29506691U1 (en) * 1995-04-20 1996-08-29 Papst-Motoren GmbH & Co KG, 78112 St Georgen Burner fan with radial impeller
JP2019007362A (en) * 2017-06-21 2019-01-17 日立アプライアンス株式会社 Electric blower

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2029515A (en) * 1978-08-30 1980-03-19 Propeller Design Ltd Marine ring propeller
GB2029515B (en) * 1978-08-30 1982-10-06 Propeller Design Ltd Marine propeller
FR2531149A1 (en) * 1982-07-29 1984-02-03 Do G Pk I Experiment AXIAL FAN
GB2276672A (en) * 1993-03-27 1994-10-05 Deutsche Forsch Luft Raumfahrt Flow machine and method for the reduction of sound emission and improvement of the air output and efficiency therein
US5518364A (en) * 1993-03-27 1996-05-21 Deutsche Forschungsanstalt For Luft-Und Raumfahrt E.V. Method for the reduction of sound emission as well as for the improvement of the air output and the efficiency in an axial flow machine, and flow machine
GB2276672B (en) * 1993-03-27 1996-07-03 Deutsche Forsch Luft Raumfahrt Flow machine and method for the reduction of sound emission and improvement of the air output and efficiency therein

Also Published As

Publication number Publication date
CH435532A (en) 1967-05-15
CH413197A (en) 1966-05-15
GB1005139A (en) 1965-09-22

Similar Documents

Publication Publication Date Title
GB1521453A (en) Axial flow fan
GB1185314A (en) Improvements in or relating to Centrifugal Pumps.
GB1266585A (en)
GB1483556A (en) Axial-flow fan blower or the like
GB1195012A (en) Rotor for Bladed Fluid Flow Machines.
GB1467659A (en) Fan and cowl assembly in a vehicle
GB981188A (en) Improved helicoidal fan
FR2310481A1 (en) Ultrahigh speed turbomolecular pump with electric motor - having cover with projecting cone circumferential ribs and blades acting as stators
GB1333307A (en) Centrifugal fan
GB1490806A (en) Impeller for a high-speed turbo machine
GB992266A (en) Axial-flow blower
GB983469A (en) Axial flow fan
GB1516876A (en) Rotary pumps
GB838602A (en) Improvements in or relating to gas turbine plant
GB1369229A (en) Gas turbine engine casing means
GB1406098A (en) Fluid flow machines
SE309082B (en)
GB1510846A (en) Axial flow pump
GB975892A (en) Turbine rotors
GB1107270A (en) Improvements in and relating to a centrifugal fan comprising a drum impeller
GB1271782A (en) Improvements in or relating to fans
GB1019272A (en) Improvements in rotary molecular vacuum pumps
GB957393A (en) Improvements in or relating to a noise suppressed fan structure
GB1085344A (en) Methods of constructing fan impellers
GB1476164A (en) Compressors