Title:
REFRIGERATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2000/039510
Kind Code:
A1
Abstract:
A refrigerating device which comprises a first refrigerating circuit (1) for a refrigerating system (6A) constructed for operation on a two-stage refrigerant cycle by connecting a high temperature refrigerant circuit (3) and a low temperature refrigerant circuit (4) through a refrigerant heat exchanger (5), and a second refrigerating circuit (2) constructed for operation on a refrigerating cycle different from that for the first refrigerating circuit (1), wherein the liquid piping (15a) of the high temperature refrigerant circuit (3) and the liquid piping (36a) of the second refrigerating circuit (2) are connected through a first connecting piping (41) while the suction gas piping (15b) of the high temperature refrigerant circuit (3) and the suction gas piping (36b) of the second refrigerating circuit (2) are connected through a second connecting piping (42). And in a two-stage refrigerant cycle refrigerating device applied to a showcase (6) or the like and provided with switching means (43, 44) for selectively allowing the refrigerant in the second refrigerant circuit (2) to flow into the refrigerant heat exchanger (5) of the first refrigerant circuit (1) through the connecting pipings (41, 42), it is arranged that even when a heat source device (11) is stopped, the refrigerating operation can be continued.
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Inventors:
KONDO ISAO (JP)
UENO AKITOSHI (JP)
MEZAKI TAKENORI (JP)
UENO AKITOSHI (JP)
MEZAKI TAKENORI (JP)
Application Number:
PCT/JP1999/007025
Publication Date:
July 06, 2000
Filing Date:
December 14, 1999
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
KONDO ISAO (JP)
UENO AKITOSHI (JP)
MEZAKI TAKENORI (JP)
KONDO ISAO (JP)
UENO AKITOSHI (JP)
MEZAKI TAKENORI (JP)
International Classes:
F25B7/00; F25B13/00; (IPC1-7): F25B7/00
Foreign References:
| US4878357A | 1989-11-07 | |||
| JPH03111870U | 1991-11-15 | |||
| JPS5866762A | 1983-04-21 | |||
| JPH10103800A | 1998-04-21 | |||
| JPS58178159A | 1983-10-19 | |||
| JPH09138046A | 1997-05-27 |
Other References:
See also references of EP 1059494A4
Attorney, Agent or Firm:
Maeda, Hiroshi (Utsubohonmachi 1-chome Nishi-ku Osaka-shi Osaka, JP)
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