GB1287309A - Screw rotor compressor - Google Patents
Screw rotor compressorInfo
- Publication number
- GB1287309A GB1287309A GB5158670A GB5158670A GB1287309A GB 1287309 A GB1287309 A GB 1287309A GB 5158670 A GB5158670 A GB 5158670A GB 5158670 A GB5158670 A GB 5158670A GB 1287309 A GB1287309 A GB 1287309A
- Authority
- GB
- United Kingdom
- Prior art keywords
- refrigerant
- oil
- condenser
- screw rotor
- liquid refrigerant
- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0007—Injection of a fluid in the working chamber for sealing, cooling and lubricating
-
- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
- F04C29/042—Heating; Cooling; Heat insulation by injecting a fluid
Abstract
1287309 Screw motor compressors KUHIAUTOMAT VEB 29 Oct 1970 51586/70 Index F4H G2T HG2L HG2F HG2C HF2J In an externally meshing screw rotor compressor for a refrigeration process (not described) in a ship's installations, refrigerant vapour is sucked in at the low pressure side and partly compressed before oil, from an oil separator (2), Fig. 3 (not shown), is injected via a pump (7), filter (9) and connection (10) Fig. 3 (not shown) into the refrigerant vapour compression chamber, for the purpose of sealing, cooling, lubrication and noise absorption, via ducts 15, a subsequent injection of liquid refrigerant at condensation pressure into the compression chamber via axial and/or radial ducts 17, 18 further taking place at a point shortly before the screw rotor grooves come into communication with the high-pressure outlet at the end of the compression stage, whereby the oil is cooled by the liquid refrigerant which is accordingly vaporized by the heat, the arrangement obviating the necessity for a separate oil cooler and thus reducing the overall size of the operational refrigerator unit. The liquid refrigerant is supplied from a condenser (3) Fig. 3 (not shown) via a thermostatic expansion valve (11) and connection (12), the injected quantity of refrigerant being regulated by the valve (11) and directed against the pump delivery flow to ensure good distribution and mixing for rapidly cooling the oil whereby the entire compression work generated heat is conducted away in the condenser (3). The major part of the refrigerant liquified in the condenser (3) is fed to the normal refrigerant cycle in that is passes through an expansion valve (4) into a vaporizer (5), is vaporized there by a heat supply and is sucked by the compressor 1, which is driven by an electric motor (8), through suction filters (6).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5158670A GB1287309A (en) | 1970-10-29 | 1970-10-29 | Screw rotor compressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5158670A GB1287309A (en) | 1970-10-29 | 1970-10-29 | Screw rotor compressor |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1287309A true GB1287309A (en) | 1972-08-31 |
Family
ID=10460606
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5158670A Expired GB1287309A (en) | 1970-10-29 | 1970-10-29 | Screw rotor compressor |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1287309A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE30499E (en) | 1974-11-19 | 1981-02-03 | Dunham-Bush, Inc. | Injection cooling of screw compressors |
WO1982000500A1 (en) * | 1980-07-31 | 1982-02-18 | Gray R | Rotary compressors |
USRE30869E (en) | 1971-12-28 | 1982-02-23 | Svenska Rotor Maskiner Aktiebolag | Method of operating a refrigeration plant and a plant for performing the method |
GB2575464A (en) * | 2018-07-10 | 2020-01-15 | Jacklin Gmbh | Single stage rotary screw compressor |
-
1970
- 1970-10-29 GB GB5158670A patent/GB1287309A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE30869E (en) | 1971-12-28 | 1982-02-23 | Svenska Rotor Maskiner Aktiebolag | Method of operating a refrigeration plant and a plant for performing the method |
USRE30499E (en) | 1974-11-19 | 1981-02-03 | Dunham-Bush, Inc. | Injection cooling of screw compressors |
WO1982000500A1 (en) * | 1980-07-31 | 1982-02-18 | Gray R | Rotary compressors |
GB2575464A (en) * | 2018-07-10 | 2020-01-15 | Jacklin Gmbh | Single stage rotary screw compressor |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4497185A (en) | Oil atomizing compressor working fluid cooling system for gas/vapor/helical screw rotary compressors | |
US3848422A (en) | Refrigeration plants | |
US3859815A (en) | Two-stage compression apparatus | |
US6216474B1 (en) | Part load performance of variable speed screw compressor | |
GB1459721A (en) | Liquid refrigerant injection system for hermetic electric motor drivem helical screw compressor | |
US3577742A (en) | Refrigeration system having a screw compressor with an auxiliary high pressure suction inlet | |
US4758138A (en) | Oil-free rotary gas compressor with injection of vaporizable liquid | |
US2991632A (en) | Refrigeration system | |
SE8207389L (en) | OIL COOLING DEVICE FOR SCREW COMPRESSOR IN A COOLING SYSTEM | |
US4020642A (en) | Compression systems and compressors | |
US3866438A (en) | Motor cooling apparatus utilizing a refrigerant flow circuit | |
US3105633A (en) | Rotary compressor injection cooling arrangement | |
US3931718A (en) | Refrigerant screw compression with liquid refrigerant injection | |
JPS60105873A (en) | Oil cooling device for compressor, particularly, screw type compressor | |
US3945219A (en) | Method of and apparatus for preventing overheating of electrical motors for compressors | |
US2048025A (en) | Refrigerating apparatus | |
US3111820A (en) | Rotary compressor injection cooling arrangement | |
US3210958A (en) | Heat pump comprising rotary compressor including injection cooling arrangement | |
GB1287309A (en) | Screw rotor compressor | |
US6098422A (en) | Oil and refrigerant pump for centrifugal chiller | |
GB1220131A (en) | Refrigeration system and systems for cooling and controlling compressors | |
US2513361A (en) | Method and system for producing low-temperature refrigeration | |
US3874192A (en) | Oil cooling apparatus for refrigerators | |
GB772944A (en) | Rotary compressor | |
GB1434927A (en) | Refrigeration plants |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |