Title:
COLD AIR REFRIGERATING SYSTEM AND TURBOEXPANDER TURBINE FOR THIS SYSTEM
Document Type and Number:
WIPO Patent Application WO/2001/048424
Kind Code:
A2
Abstract:
The cold air refrigerating system comprises a compressor (1), a dual-chamber heat exchanger (2), a turboexpander (6) and a refrigerating chamber (3), with a fan (5) and air cooler (4) installed therein. The fan (7) is mounted on the same shaft with the turboexpander (6). The front chambers of the heat exchangers (9 and 2), a moisture separator (8) and the second chamber of the heat exchanger (2) are connected. In another embodiment, the system contains a compressor (44) and a turboexpander (49) a dual-chamber heat exchanger (45), a refrigerating chamber (46), with a fan (48) and an air cooler (47) installed therein, a dual-chamber evaporation heat exchanger (51) and a moisture separator (50). The front chambers of the evaporation heat exchangers (51 and 45), the moisture separator (50), turboexpander (49) an air cooler (47) and the second chamber of the heat exchanger (45) are connected in tandem with an inlet of the compressor(44). A bearing disc (67) of a turbine (66) is embodied with interblade bores (69) conjugated through chamfers (70) with the meridian surface of the disk (67). Longitudinal micro-chamfers (71) are made on the surfaces of the chamfers (69). A radius (R¿k?) of the cross-section of the micro-chamfer (71) constitutes 0.1 - 1.0 of the radius (R¿ch?)of the chamfer (70), the pitch (t) between the micro-chamfers (71) does not exceed two radii (R¿k?), and the height (h) of the micro-chamfer (71) constitutes (0.2 - 1.0) of the radius (R¿k?).
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Inventors:
PANIN ALEXANDR ANDREEVICH (RU)
PESHKOV ALEXANDR ALEXEEVICH (RU)
RAVIKOVICH JURY ALEXANDROVICH (RU)
PESHKOV ALEXANDR ALEXEEVICH (RU)
RAVIKOVICH JURY ALEXANDROVICH (RU)
Application Number:
PCT/RU2000/000532
Publication Date:
July 05, 2001
Filing Date:
December 27, 2000
Export Citation:
Assignee:
PANIN ALEXANDR ANDREEVICH (RU)
PESHKOV ALEXANDR ALEXEEVICH (RU)
RAVIKOVICH JURY ALEXANDROVICH (RU)
PESHKOV ALEXANDR ALEXEEVICH (RU)
RAVIKOVICH JURY ALEXANDROVICH (RU)
International Classes:
B64D13/06; F25B11/00; F01D5/04; F25B9/00; F25B9/06; F25B11/04; (IPC1-7): F24F/
Domestic Patent References:
| WO1980000468A1 | 1980-03-20 |
Foreign References:
| SU1290040A1 | 1987-02-15 | |||
| SU1059217A1 | 1983-12-07 | |||
| SU1495601A1 | 1989-07-23 | |||
| GB1459400A | 1976-12-22 | |||
| GB1583143A | 1981-01-21 |
Other References:
See also references of EP 1243878A2
Attorney, Agent or Firm:
FIRM 'PATENT SERVICES CENTRE' (55a Moscow, 9, RU)
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