Refrigeration – Refrigeration producer – Compressor-condenser-evaporator circuit
Reexamination Certificate
2006-02-28
2006-02-28
Tyler, Cheryl (Department: 3744)
Refrigeration
Refrigeration producer
Compressor-condenser-evaporator circuit
C062S502000
Reexamination Certificate
active
07003980
ABSTRACT:
An energy-saving type refrigerating device capable of preventing global warming, allowing a communication pipe diameter to be reduced and the number of types of the communication pipe diameters to be reduced while a COP of over the COP obtained when R22 is used is provided by using, as a refrigerant, R32 with small global warming potential (GWP), comprising a compressor (23), a first heat exchanger (22), a expansion means (26), and a second heat exchanger (2), wherein R32 is used as a refrigerant, the diameter of a first communication pipe (42) is set to 2/8 in. and that of a second communication pipe (41) is set to ⅜ in. in the refrigerating capacity range of 2.2 to 5.6 kW, the diameter of the first communication pipe (42) is set to 2/8 in. and that of the second communication pipe (41) is set to 4/8 in. in the refrigerating capacity range of 4.5 to 7.1 kW, and the diameter of the first communication pipe (42) is set to 2/8 in. and that of the second communication pipe (41) is set to ⅝ in. in the refrigerating capacity range of 7.1 to 14.0 kW.
REFERENCES:
patent: 5744053 (1998-04-01), Kaimai
patent: 6074573 (2000-06-01), Kaneko
patent: 6212903 (2001-04-01), Okamoto et al.
patent: 6477848 (2002-11-01), Domyo et al.
patent: 6571575 (2003-06-01), Fujitaka et al.
patent: 6739143 (2004-05-01), Kita et al.
patent: 1178547 (1998-04-01), None
patent: 9-151370 (1997-06-01), None
patent: 9-208939 (1997-08-01), None
patent: 10-195426 (1998-07-01), None
patent: WO97/29162 (1997-08-01), None
patent: 98/41803 (1998-09-01), None
patent: 00/52396 (2000-09-01), None
Shadan Hojin Nippon Reito Kyokai ed. “Jokyu Hyoujun Text Reito Kucho Gijutsu”, Jan. 20, 1998, p. 133, right column, line 8 to p. 143, right column, line 26.
Birch & Stewart Kolasch & Birch, LLP
Daikin Industries Ltd.
Leung Richard L.
Tyler Cheryl
LandOfFree
Refrigerating device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Refrigerating device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Refrigerating device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3655134