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GB1153345A - Imminent Separation Fluid Diffuser Passage - Google Patents

Imminent Separation Fluid Diffuser Passage

Info

Publication number
GB1153345A
GB1153345A GB27509/66A GB2750966A GB1153345A GB 1153345 A GB1153345 A GB 1153345A GB 27509/66 A GB27509/66 A GB 27509/66A GB 2750966 A GB2750966 A GB 2750966A GB 1153345 A GB1153345 A GB 1153345A
Authority
GB
United Kingdom
Prior art keywords
boundary layer
imminent
converging
diffuser passage
separation fluid
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
GB27509/66A
Inventor
Shao Lee Soo
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.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor Co
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 Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Priority to GB27509/66A priority Critical patent/GB1153345A/en
Publication of GB1153345A publication Critical patent/GB1153345A/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
    • 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
    • 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
    • F05D2250/70—Shape

Landscapes

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

Abstract

1,153,345. Boundary layer control. CATERPILLAR TRACTOR CO. 20 June, 1966, No. 27509/66. Heading F2R. A radial compressor 15 is formed with an annular diffuser 16 which is contoured so as to achieve a continuous condition of imminent boundary layer separation (defined as a condition wherein the boundary layer is about to, but has not yet, reached boundary layer separation) over the greater part of its length to obtain maximum efficiency with a minimum loss due to friction and heat. Formulµ are specified to derive the diffuser profile, which comprises a converging-, diverging-converging contour as represented by areas 18, 19 and 20 in Fig. 7, wherein as shown downstream of area 19, the flow reaches an imminent separation state denoted diagrammatically by diagrams 25, 26 and 27. One wall may be planar.
GB27509/66A 1966-06-20 1966-06-20 Imminent Separation Fluid Diffuser Passage Expired GB1153345A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB27509/66A GB1153345A (en) 1966-06-20 1966-06-20 Imminent Separation Fluid Diffuser Passage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB27509/66A GB1153345A (en) 1966-06-20 1966-06-20 Imminent Separation Fluid Diffuser Passage

Publications (1)

Publication Number Publication Date
GB1153345A true GB1153345A (en) 1969-05-29

Family

ID=10260724

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27509/66A Expired GB1153345A (en) 1966-06-20 1966-06-20 Imminent Separation Fluid Diffuser Passage

Country Status (1)

Country Link
GB (1) GB1153345A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0229519A1 (en) * 1985-12-24 1987-07-22 Holset Engineering Company Limited Improvements in and relating to compressors
US4930979A (en) * 1985-12-24 1990-06-05 Cummins Engine Company, Inc. Compressors
EP0402870A1 (en) * 1989-06-13 1990-12-19 Daikin Industries, Limited Diffuser of a centrifugal compressor
GB2551804A (en) * 2016-06-30 2018-01-03 Cummins Ltd Diffuser for a centrifugal compressor
CN107614886A (en) * 2015-10-29 2018-01-19 三菱重工业株式会社 Volute and centrifugal compressor
EP3299634A4 (en) * 2015-10-29 2018-08-15 Mitsubishi Heavy Industries, Ltd. Scroll casing and centrifugal compressor

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0229519A1 (en) * 1985-12-24 1987-07-22 Holset Engineering Company Limited Improvements in and relating to compressors
US4930979A (en) * 1985-12-24 1990-06-05 Cummins Engine Company, Inc. Compressors
EP0402870A1 (en) * 1989-06-13 1990-12-19 Daikin Industries, Limited Diffuser of a centrifugal compressor
US5143514A (en) * 1989-06-13 1992-09-01 Daikin Industries, Ltd. Diffuser of centrifugal compressor
EP3299635A4 (en) * 2015-10-29 2018-05-30 Mitsubishi Heavy Industries, Ltd. Scroll casing and centrifugal compressor
CN107614886A (en) * 2015-10-29 2018-01-19 三菱重工业株式会社 Volute and centrifugal compressor
US20180149170A1 (en) * 2015-10-29 2018-05-31 Mitsubishi Heavy Industries, Ltd. Scroll casing and centrifugal compressor
EP3299634A4 (en) * 2015-10-29 2018-08-15 Mitsubishi Heavy Industries, Ltd. Scroll casing and centrifugal compressor
US10655637B2 (en) 2015-10-29 2020-05-19 Mitsubishi Heavy Industries, Ltd. Scroll casing and centrifugal compressor
US11078922B2 (en) 2015-10-29 2021-08-03 Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. Scroll casing and centrifugal compressor
GB2551804A (en) * 2016-06-30 2018-01-03 Cummins Ltd Diffuser for a centrifugal compressor
GB2551804B (en) * 2016-06-30 2021-04-07 Cummins Ltd Diffuser for a centrifugal compressor
US11125235B2 (en) 2016-06-30 2021-09-21 Cummins Ltd. Centrifugal compressor with diffuser with throat

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees