Heat exchangers and air conditioning systems including such heat exchangers

摘要

A heat exchanger including a pair of header pipes and a plurality of heat transfer tubes extending between and placing the header pipes in communication and extending in parallel to each other to form a parallel-flow type heat exchanger core. The heat exchanger core is bent, so that relative to a center portion of the core, at least one header pipe is offset in the direction of air flow across the heat exchanger. The offset disposition of a larger header pipe may be achieved without increasing a tube insertion length into the header pipe or the reduction or elimination of liquid storing and moisture reducing unit contained in the header pipe. Consequently, heat exchangers achieving enhanced performance may be realized at a lower cost than known heat exchangers. Moreover, methods of producing such heat exchangers may achieve higher productivity.