To facilitate the fitting of corrugated sheets in a laminated state and to eliminate the joining work between the laminated corrugated sheets.
In this heat exchanger, the corrugated sheets 13 having chevron parts 13a protruded to one surface side and valley parts 13b protruded to the other surface side alternately formed at a prescribed pitch are arranged in the laminated state between tubes 12. Either one of the chevron part 13a and valley part 13b of each corrugated sheets 13 has a positioning projection part 15 protruded to the opposite direction in the same protruding size. Mutually adjacent corrugated sheets 13 are laminated so that the respective chevron parts 13a and valley parts 13b are arranged in the same position, and the positioning projection part 15 of at least one corrugated sheets 13 is overlapped with the chevron part 13a or valley part 13b of the other corrugated sheets 13. The corrugated sheets 13 adjacent to each tube 12 is arranged with the surface having no protrusion of the positioning projection part 15 as the surface to make contact with the tube 12.
| JPH1089879A | 1998-04-10 | |||
| JPH02109179U | 1990-08-30 | |||
| JPH08204074A | 1996-08-09 | |||
| JPH09152292A | 1997-06-10 | |||
| JPS6270276U | 1987-05-02 | |||
| JPS6332296A | 1988-02-10 | |||
| JPH08159603A | 1996-06-21 |
Yasuo Miyoshi
Iwa Saki Kokuni
Akira Kurihara
Kawamata Sumio
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu