GB937987A - - Google Patents

Info

Publication number
GB937987A
GB937987A GB24034/62A GB2403462A GB937987A GB 937987 A GB937987 A GB 937987A GB 24034/62 A GB24034/62 A GB 24034/62A GB 2403462 A GB2403462 A GB 2403462A GB 937987 A GB937987 A GB 937987A
Authority
GB
United Kingdom
Prior art keywords
rotor
wall
slots
fluid
june
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
GB24034/62A
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.)
Gutehoffnungshutte Sterkrade AG
Original Assignee
Gutehoffnungshutte Sterkrade AG
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 Gutehoffnungshutte Sterkrade AG filed Critical Gutehoffnungshutte Sterkrade AG
Publication of GB937987A publication Critical patent/GB937987A/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
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/10—Centrifugal pumps for compressing or evacuating
    • F04D17/12—Multi-stage pumps
    • F04D17/122—Multi-stage pumps the individual rotor discs being, one for each stage, on a common shaft and axially spaced, e.g. conventional centrifugal multi- stage compressors
    • 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
    • F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
    • F04D29/682—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps by fluid extraction

Landscapes

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

Abstract

937,987. Reducing surface friction in turbines. GUTEHOFFNUNGSHUTTE STERKRADE A.G. June 22, 1962 [June 24, 1961], No. 24034/61. Class 4. A turbine, e.g. a radial flow compresser, has a rotor 1 from which a flow path 2 extends downstream to a second rotor, (not shown), one or more slots 13, 16 being formed in a boundary wall 7, 5 of the path for removing, by suction, the boundary layer of fluid on the wall into space 12, 15 from which it passes by one or more slots 14, 17 to gaps 11, 10 between the rotor 1 and the wall at a position closer to the axis of the turbine than the outlet of rotor 1. Walls 5 are attached to casing 4 and wall 7 is attached by vanes 3 to a wall 5. Rotation of rotor 1 draws fluid through slots 14, 17 from spaces 12, 15; the rotor may have grooves or blades to enable more fluid to be drawn through the slots.
GB24034/62A 1961-06-24 1962-06-22 Expired GB937987A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG0032578 1961-06-24

Publications (1)

Publication Number Publication Date
GB937987A true GB937987A (en) 1963-09-25

Family

ID=7124495

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24034/62A Expired GB937987A (en) 1961-06-24 1962-06-22

Country Status (3)

Country Link
CH (1) CH409223A (en)
DE (1) DE1403519A1 (en)
GB (1) GB937987A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4063848A (en) * 1976-03-24 1977-12-20 Caterpillar Tractor Co. Centrifugal compressor vaneless space casing treatment
US4579509A (en) * 1983-09-22 1986-04-01 Dresser Industries, Inc. Diffuser construction for a centrifugal compressor
US4645419A (en) * 1984-09-10 1987-02-24 Ebara Corporation Centrifugal compressor
FR2989434A1 (en) * 2012-04-11 2013-10-18 Thermodyn DIAPHRAGM WITH PASSIVE FLOW CONTROL FOR COMPRESSION FLOOR
DE102014203251A1 (en) * 2014-02-24 2015-08-27 Siemens Aktiengesellschaft Return stage for a radial turbomachine
EP3964716A1 (en) * 2020-09-08 2022-03-09 Pratt & Whitney Canada Corp. Impeller exducer cavity with flow recirculation
US11802482B2 (en) 2022-01-28 2023-10-31 Hamilton Sundstrand Corporation Rotor with inlets to channels

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH646757A5 (en) * 1980-08-20 1984-12-14 Sulzer Ag RADIAL COMPRESSORS.
DE3511769A1 (en) * 1985-03-30 1986-10-02 MAN Gutehoffnungshütte GmbH, 4200 Oberhausen ONE AND MULTI-STAGE AXIAL COMPRESSOR
JP2014152637A (en) * 2013-02-05 2014-08-25 Mitsubishi Heavy Ind Ltd Centrifugal compressor
DE102016208265A1 (en) * 2016-05-13 2017-11-16 Siemens Aktiengesellschaft Return stage, radial turbocompressor

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4063848A (en) * 1976-03-24 1977-12-20 Caterpillar Tractor Co. Centrifugal compressor vaneless space casing treatment
US4579509A (en) * 1983-09-22 1986-04-01 Dresser Industries, Inc. Diffuser construction for a centrifugal compressor
US4645419A (en) * 1984-09-10 1987-02-24 Ebara Corporation Centrifugal compressor
FR2989434A1 (en) * 2012-04-11 2013-10-18 Thermodyn DIAPHRAGM WITH PASSIVE FLOW CONTROL FOR COMPRESSION FLOOR
US9447784B2 (en) 2012-04-11 2016-09-20 Thermodyn Diaphragm with passive flow rate control for compression stage
EP2650543A3 (en) * 2012-04-11 2018-02-28 Thermodyn Radial compressor with a diffuser including passive flow control
DE102014203251A1 (en) * 2014-02-24 2015-08-27 Siemens Aktiengesellschaft Return stage for a radial turbomachine
EP3964716A1 (en) * 2020-09-08 2022-03-09 Pratt & Whitney Canada Corp. Impeller exducer cavity with flow recirculation
US11802482B2 (en) 2022-01-28 2023-10-31 Hamilton Sundstrand Corporation Rotor with inlets to channels

Also Published As

Publication number Publication date
DE1403519A1 (en) 1969-12-11
CH409223A (en) 1966-03-15

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