| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat exchanging device capable of reducing the ventilating resistance to the air flow in the entire device, while keeping the desired maximum heat exchanging quantity in total in two rows on condition that the flow of heat exchanging medium is divided into two rows by arranging heat exchangers in two rows with respect to the air flowing direction. SOLUTION: In this heat exchanging device wherein the heat exchangers respectively comprising a pair of header pipes mounted in opposition to each other, a plurality of heat exchanging tubes arranged between the header pipes in a state that end parts are respectively communicated with the header pipes, and arranged in the axial direction of the header pipe at specific intervals, and corrugate type fins respectively mounted between the heat exchanging tubes adjacent to each other at specific pitches in the heat exchanging tube extending direction, are arranged in two rows in the longitudinal direction with respect to the air flowing direction, and the heat exchanging medium flows in series between both heat exchangers, an inlet of the heat exchanging medium is formed on the heat exchanger at a downstream side of the air flowing direction, an outlet of the heat exchanging medium is formed on the heat exchanger at an upstream side of the air flowing direction, the pitch of the fins of the heat exchanger at the upstream side in the air flowing direction is larger than the pitch of the fins of the heat exchanger at the downstream side in the air flowing direction. COPYRIGHT: (C)2005,JPO&NCIPI
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