| 摘要 |
PROBLEM TO BE SOLVED: To provide an air cooler capable of keeping airtightness between an air passage and an air cooler with an inexpensive construction. SOLUTION: A hole is formed on a passage wall of an air passage, and an air cooler unit is inserted in the air passage from the hole. A frame member with both an outer periphery larger than that of the hole and an inner periphery smaller than that of the hole is secured to an edge of the air cooler unit and the hole of the passage wall, so as to keep airtightness between the passage wall and the air cooler unit. Another hole opposed to the hole formed on the passage wall of the air passage is formed on the passage wall, and the air cooler units are secured to the passage wall with the frame member in two respective holes. |
