|
| US3945216 | 16. Dez. 1974 | 23. März 1976 | Svenska Rotor Maskiner Aktiebolag | Refrigeration systems |
| US3945219 | 9. Dez. 1974 | 23. März 1976 | Kabushiki Kaisha Maekawa Seisakusho | Method of and apparatus for preventing overheating of electrical motors for compressors |
| US4254637 | 19. Okt. 1979 | 10. März 1981 | Vilter Manufacturing Corporation | Refrigeration system with refrigerant cooling of compressor and its oil |
| US4275570 | 16. Juni 1980 | 30. Juni 1981 | Vilter Manufacturing Corporation | Oil cooling means for refrigeration screw compressor |
| US4569640 | 5. Mai 1983 | 11. Febr. 1986 | | Device for high pressure compression |
| US4573324 | 4. März 1985 | 4. März 1986 | American Standard Inc. | Compressor motor housing as an economizer and motor cooler in a refrigeration system |
| US4780061 | 6. Aug. 1987 | 25. Okt. 1988 | American Standard Inc. | Screw compressor with integral oil cooling |
| US5214928 | 2. Apr. 1991 | 1. Juni 1993 | Omega Enterprises, Inc. | Refrigeration apparatus and methods |
| US5433590 | 21. Dez. 1993 | 18. Juli 1995 | Bitzer Kuhlmaschinenbau GmbH & Co.KG | Cooling device for the lubrication circuit of a compressor |
| US5477695 | 6. Jan. 1995 | 26. Dez. 1995 | Thermo King Corporation | Methods and apparatus for operating a refrigeration system characterized by controlling engine coolant |
| US5590539 | 16. Nov. 1995 | 7. Jan. 1997 | Omega Enterprises Inc. | Refrigeration apparatus and methods |
| US5603222 | 14. Juni 1995 | 18. Febr. 1997 | | Cooling method and system for a compressor of a refrigerating system |
| US5613368 | 16. Nov. 1995 | 25. März 1997 | Omega Enterprises, Inc. | Refrigeration apparatus and methods |
| US6755039 | 4. Sept. 2003 | 29. Juni 2004 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Screw refrigerating apparatus |