Heat exchanger

Abstract

A heat exchanger having tubes and fins arranged to have air directed across the fins in a direction transverse to a length of the fins. A first row of tubes are aligned along the length of the fins and include a first distance between centers of adjacent tubes of the first row. A second row of tubes are aligned along the length of the fins and include a second distance between centers of adjacent tubes of the second row. The first and second rows of tubes have a third distance between centers of adjacent tubes of the first and second rows. The third distance is larger than the first and second distances. The heat exchanger further includes a widthwise spacing between the adjacent tubes of the first and second rows that is larger than lengthwise spacings between the adjacent tubes of the first row and the second row.