Patent ID: 6640885
Filing Date: 2003-11-04
Classification: C04B,F25B,F25D,F28D,F28F,Y10T

Abstract:
A condenser coil assembly made according to the following method:taking an elongated condenser coil having a first coil end and a second coil end and being capable of carrying a refrigerant fluid from the first coil end to the second coil end; bending the condenser coil into an accordion shaped configuration comprising a plurality of first U-shaped bends, a plurality of second U-shaped bends and a plurality of approximately parallel straight run sections, each of the straight run sections extending between one of the first U-shaped bends and one of the second U-shaped bends, the accordion shaped configuration lying in a single X-Y plane; attaching a plurality of elongated first fins to the condenser coil on one side of the single X-Y plane and a plurality of elongated second fins on the side of the single X-Y plane, the elongated first and second fins both extending in a direction perpendicular to the straight run sections of the condenser coil; positioning an elongated first rod and an elongated second rod on opposite sides of the X-Y plane and extending parallel to one another and perpendicular to the straight run sections; making a first fold line by folding the X-Y plane in a first rotational direction about the first rod, the first rod having an outer curved surface of a radius sufficient to permit the refrigerant fluid to flow through the coil around the first fold line; making a second fold line by folding the X-Y plane in the same first rotational direction about the second rod, the second rod having an outer curved surface of a radius sufficient to permit the refrigerant fluid to flow though the coil around the second fold line, whereby the first and second fold line form the single X-Y plane into three overlying layers lying in separate planes; the outer most of said layers being spaced apart by a distance substantially less than four times said radius.