GB761421A - Improvements in or relating to labyrinth parking systems for use in turbines or pumps - Google Patents

Improvements in or relating to labyrinth parking systems for use in turbines or pumps

Info

Publication number
GB761421A
GB761421A GB29782/54A GB2978254A GB761421A GB 761421 A GB761421 A GB 761421A GB 29782/54 A GB29782/54 A GB 29782/54A GB 2978254 A GB2978254 A GB 2978254A GB 761421 A GB761421 A GB 761421A
Authority
GB
United Kingdom
Prior art keywords
runner
spaces
housing
passages
turbines
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
GB29782/54A
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.)
Sulzer Escher Wyss AG
Original Assignee
Escher Wyss 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 Escher Wyss AG filed Critical Escher Wyss AG
Publication of GB761421A publication Critical patent/GB761421A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/08Sealings
    • F04D29/16Sealings between pressure and suction sides
    • F04D29/165Sealings between pressure and suction sides especially adapted for liquid pumps
    • F04D29/167Sealings between pressure and suction sides especially adapted for liquid pumps of a centrifugal flow wheel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/44Free-space packings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Turbines (AREA)

Abstract

761,421. Hydraulic turbines; centrifugal pumps. ESCHER WYSS AKT.-GES. Oct. 15, 1954 [Oct. 7, 1953], No. 29782/54. Classes 110 (1) and 110 (3). A labyrinth seal arranged in the flow path of leakage fluid between adjacent parts of a turbine or pump runner and its housing, comprises at least two annular throttling passages leading to and from an enlarged annular space bounded by the runner and housing, so that displacement of the runner radially from the axis alters the width of the passages to produce hydraulic forces to urge the runner back to its correct position. The runner 2 and housing 1 of a Frances turbine are shaped to provide passages 10, 11, 19, 20 leading to and from spaces 13, 22. During displacement in a radial direction axial forces produced in the spaces are balanced but radial forces produced in spaces 22 restore the runner to the central position.
GB29782/54A 1953-10-07 1954-10-15 Improvements in or relating to labyrinth parking systems for use in turbines or pumps Expired GB761421A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH761421X 1953-10-07

Publications (1)

Publication Number Publication Date
GB761421A true GB761421A (en) 1956-11-14

Family

ID=4534721

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29782/54A Expired GB761421A (en) 1953-10-07 1954-10-15 Improvements in or relating to labyrinth parking systems for use in turbines or pumps

Country Status (1)

Country Link
GB (1) GB761421A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3326299A1 (en) * 1983-07-21 1985-02-07 MTU Motoren- und Turbinen-Union München GmbH, 8000 München GAP TRAINING BETWEEN A FIXED AND A TURNING PART
CN113719467A (en) * 2021-07-26 2021-11-30 江苏大学镇江流体工程装备技术研究院 Centrifugal pump combined seal with guard ring

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3326299A1 (en) * 1983-07-21 1985-02-07 MTU Motoren- und Turbinen-Union München GmbH, 8000 München GAP TRAINING BETWEEN A FIXED AND A TURNING PART
CN113719467A (en) * 2021-07-26 2021-11-30 江苏大学镇江流体工程装备技术研究院 Centrifugal pump combined seal with guard ring

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