Patent ID: 11885539
Assignee: HEATCRAFT REFRIGERATION PRODUCTS LLC
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F | IPC F

Claim 6:
7. A system, comprising:
an evaporator coil; and
an insert for an evaporator coil, wherein the insert comprises an individual curved wire located within the evaporator coil;
wherein:
the insert reduces refrigerant charge in the evaporator coil by reducing a volume of refrigerant within the evaporator coil;
the insert causes refrigerant flowing through the evaporator coil to change direction, and
wherein the individual curved wire comprises a plurality of semi-circular shapes, wherein the plurality of semi-circular shapes comprise at least a first curve connected to a second curve, wherein the first curve comprises a first outer edge that forms a first peak which contacts an inner surface of the evaporator coil, and wherein the second curve comprises a second outer edge that forms a second peak which contacts the inner surface of the evaporator coil, wherein the first curve comprises a first 180-degree turn and the second curve comprises a second 180-degree turn, and wherein the second 180-degree turn is opposing to the first 180-degree turn.