FR1600841A - Reducing play between a helicoidal fan's - stator and rotor - Google Patents
Reducing play between a helicoidal fan's - stator and rotorInfo
- 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
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.
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)
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 |
-
1968
- 1968-07-16 FR FR1600841D patent/FR1600841A/en not_active Expired
Cited By (4)
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 |