GB1515729A - Centrifugal compressors air blowers fans and pumps - Google Patents

Centrifugal compressors air blowers fans and pumps

Info

Publication number
GB1515729A
GB1515729A GB32031/75A GB3203175A GB1515729A GB 1515729 A GB1515729 A GB 1515729A GB 32031/75 A GB32031/75 A GB 32031/75A GB 3203175 A GB3203175 A GB 3203175A GB 1515729 A GB1515729 A GB 1515729A
Authority
GB
United Kingdom
Prior art keywords
blades
inlet
blade
outlet
impeller axis
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
GB32031/75A
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.)
LE POLI I IM MI KALININA
Original Assignee
LE POLI I IM MI KALININA
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 LE POLI I IM MI KALININA filed Critical LE POLI I IM MI KALININA
Priority to GB32031/75A priority Critical patent/GB1515729A/en
Publication of GB1515729A publication Critical patent/GB1515729A/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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F04D29/444—Bladed diffusers
    • 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
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/52—Outlet

Landscapes

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

Abstract

1515729 Centrifugal compressors LENINGRAD POLITEKH INST IM M I KALININA 31 July 1975 32031/75 Heading F 1C In a centrifugal compressor the ratio of the length of each impeller blade 6, 7 along itself between its inlet and outlet ends to the width of the channel between adjacent blades at a position radially midway between the inlet and outlet ends of the blades lies between 3À8 and 5À6, and each blade is shaped so that the angle subtended between the blade and a tangent to a circle concentric with the impeller axis at the point of intersection between the blade and the circle remains constant from the inlet end to a position on the blade radially midway between the inlet and outlet ends and thereafter varies parabolically with respect to the radial distance from the impeller axis. As shown, blades 7 may be shorter than blades 6, the radial distance of their inlet ends from the impeller axis being 1À2-1À3 times that of the inlet ends of blades 6. The diffuser vanes 10 may also be alternately long and short, with similar relative radial positions of their inlet ends. The relative velocity of the flow along the rear surfaces of the blades 6, 7 increases only slightly from the inlet end to the outlet end, which the relative velocity along the rear surfaces of the diffuser vanes 10 (which are similar in shape to the blades 6, 7) remains constant.
GB32031/75A 1975-07-31 1975-07-31 Centrifugal compressors air blowers fans and pumps Expired GB1515729A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB32031/75A GB1515729A (en) 1975-07-31 1975-07-31 Centrifugal compressors air blowers fans and pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB32031/75A GB1515729A (en) 1975-07-31 1975-07-31 Centrifugal compressors air blowers fans and pumps

Publications (1)

Publication Number Publication Date
GB1515729A true GB1515729A (en) 1978-06-28

Family

ID=10332037

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32031/75A Expired GB1515729A (en) 1975-07-31 1975-07-31 Centrifugal compressors air blowers fans and pumps

Country Status (1)

Country Link
GB (1) GB1515729A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4037205A1 (en) * 1989-11-22 1991-05-23 Atsugi Unisia Corp PUMP WHEEL

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4037205A1 (en) * 1989-11-22 1991-05-23 Atsugi Unisia Corp PUMP WHEEL
GB2240140A (en) * 1989-11-22 1991-07-24 Atsugi Unisia Corp Pump impeller
US5125799A (en) * 1989-11-22 1992-06-30 Atsugi Unisia Corporation Impeller structure for pump

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee