To provide a fin tube type heat exchanger reducing a pressure loss of a refrigerant made to flow in U-bend tubes constituting a heat transfer tube and having large heat exchange capacity, and a refrigerating cycle device and air conditioner using the fin tube type heat exchanger.
The fin tube type heat exchanger includes: a fin portion 2 formed by laminating a plurality of plate-shaped fins 3 at predetermined intervals; and the heat transfer tube 5 comprising a plurality of hairpin tubes 6 arranged penetrating through the plate-shaped fins 3 of the fin portion 2 in the laminated direction and the U-bend tubes 10 for interconnecting pipe ends of the adjacent hairpin tubes 6. The flow passage width of a bending portion 12 of the U-bend tube 10 is set to be larger than the inner diameter of the hairpin tube 6 and double or less of the inner diameter.
RI SOUBU
| JP2006098033A | 2006-04-13 | |||
| JPH06300392A | 1994-10-28 | |||
| JPH07188735A | 1995-07-25 | |||
| JP2004255391A | 2004-09-16 |
Kiyoshi Yasushima
Souji Sasaki
Noboru Omura
Takanashi Norio
Taku Ogawa