DE3473326D1 - A screw compressor incorporating a slide valve - Google Patents
A screw compressor incorporating a slide valveInfo
- Publication number
- DE3473326D1 DE3473326D1 DE8484303436T DE3473326T DE3473326D1 DE 3473326 D1 DE3473326 D1 DE 3473326D1 DE 8484303436 T DE8484303436 T DE 8484303436T DE 3473326 T DE3473326 T DE 3473326T DE 3473326 D1 DE3473326 D1 DE 3473326D1
- Authority
- DE
- Germany
- Prior art keywords
- slide valve
- screw compressor
- compressor
- pair
- curved surfaces
- 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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/10—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
- F04C28/12—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves
- F04C28/125—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves with sliding valves controlled by the use of fluid other than the working fluid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Rotary Pumps (AREA)
Abstract
The slide valve (31) screw compressor has a valve with a chevron-shape surface, consisting of a pair of curved surfaces. These form parts of the walls of the compressor chamber, accommodating a pair of intermeshed male and female screw rotors. The slide valve is slidable axially of the rotors for connecting the rotor chamber with a suction port via an adjustably variable area providing volumetric compressor control. The slide valve is retractably protruded into a suction casing at a fore end of the side of the suction port (11). The opposite outer corners of the curved surfaces are cut off at the fore end at a preset angle with the axis. This provides a triangular section with a forwardly reduced width at the protruded end.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19840303436 EP0162157B1 (en) | 1984-05-21 | 1984-05-21 | A screw compressor incorporating a slide valve |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3473326D1 true DE3473326D1 (en) | 1988-09-15 |
Family
ID=8192639
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8484303436T Expired DE3473326D1 (en) | 1984-05-21 | 1984-05-21 | A screw compressor incorporating a slide valve |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0162157B1 (en) |
DE (1) | DE3473326D1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE463323B (en) * | 1989-03-08 | 1990-11-05 | Stal Refrigeration Ab | AGENTS FOR REGULATION OF THE INTERNAL VOLUME TREATMENT COUNTRY IN A ROTATING COMPRESSOR |
US5496388A (en) * | 1994-07-01 | 1996-03-05 | Air Liquide America Corporation | System for compressing air and extracting nitrogen from compressed air |
GB9702342D0 (en) | 1997-02-05 | 1997-03-26 | Rotary Power Couple Engines Li | Rotary device |
JP6385708B2 (en) * | 2014-04-18 | 2018-09-05 | 日立ジョンソンコントロールズ空調株式会社 | Screw compressor |
FR3034464B1 (en) | 2015-04-03 | 2017-03-24 | Snecma | COOLING THE OIL CIRCUIT OF A TURBOMACHINE |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1118800B (en) * | 1959-06-04 | 1961-12-07 | Svenska Rotor Maskiner Ab | Device for reversing the direction of rotation of a helical gear machine working as an expansion machine |
FR1258651A (en) * | 1960-06-01 | 1961-04-14 | Svenska Rotor Maskiner Ab | Adjusting device for machines with helical rotors |
US3936239A (en) * | 1974-07-26 | 1976-02-03 | Dunham-Bush, Inc. | Undercompression and overcompression free helical screw rotary compressor |
DE3221849A1 (en) * | 1982-06-09 | 1983-12-15 | Aerzener Maschinenfabrik Gmbh, 3251 Aerzen | SCREW COMPRESSOR |
-
1984
- 1984-05-21 EP EP19840303436 patent/EP0162157B1/en not_active Expired
- 1984-05-21 DE DE8484303436T patent/DE3473326D1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
EP0162157A1 (en) | 1985-11-27 |
EP0162157B1 (en) | 1988-08-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |