FR1600841A - Reducing play between a helicoidal fan's - stator and rotor - Google Patents

Reducing play between a helicoidal fan's - stator and rotor

Info

Publication number
FR1600841A
FR1600841A FR1600841DA FR1600841A FR 1600841 A FR1600841 A FR 1600841A FR 1600841D A FR1600841D A FR 1600841DA FR 1600841 A FR1600841 A FR 1600841A
Authority
FR
France
Prior art keywords
rotor
stator
fan
reducing play
filler
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
Other languages
French (fr)
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 filed Critical
Application granted granted Critical
Publication of FR1600841A publication Critical patent/FR1600841A/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
    • F01D11/12—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible. deformable or resiliently-biased part
    • F01D11/122—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible. deformable or resiliently-biased part with erodable or abradable material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/44—Free-space packings
    • F16J15/445—Free-space packings with means for adjusting the clearance

Landscapes

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

Abstract

Play is reduced by a filter of foamed material, such as expanded polyurethane. When a small relative displacement of the rotor or stator occurs, the filler is deformed by the fan's blades which cut this material. The filler is a strip which has a constant thickness and is made flat for large diameter fans and slightly bent for small diameter fans.
FR1600841D 1968-07-16 1968-07-16 Reducing play between a helicoidal fan's - stator and rotor Expired FR1600841A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR59019157 1968-07-16

Publications (1)

Publication Number Publication Date
FR1600841A true FR1600841A (en) 1970-08-03

Family

ID=9693824

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1600841D Expired FR1600841A (en) 1968-07-16 1968-07-16 Reducing play between a helicoidal fan's - stator and rotor

Country Status (1)

Country Link
FR (1) FR1600841A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3947148A (en) * 1973-12-27 1976-03-30 Chrysler United Kingdom Limited Fan assemblies
US4111615A (en) * 1975-06-18 1978-09-05 Matsushita Electric Industrial Company, Limited Fluid exhausting device
US4354801A (en) * 1981-01-23 1982-10-19 Coppus Engineerng Corporation Reaction fan with noise suppression
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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3947148A (en) * 1973-12-27 1976-03-30 Chrysler United Kingdom Limited Fan assemblies
US4111615A (en) * 1975-06-18 1978-09-05 Matsushita Electric Industrial Company, Limited Fluid exhausting device
US4354801A (en) * 1981-01-23 1982-10-19 Coppus Engineerng Corporation Reaction fan with noise suppression
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

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Legal Events

Date Code Title Description
ST Notification of lapse