Patent ID: 6612366
Filing Date: 2003-09-02
Classification: F28D,F28F,Y10S

Abstract:
A protective wrapping device adapted for shielding a condenser tube which has a passage extending along an axis for flow of a refrigerant therethrough, and first and second outer wall halves respectively extending in an axial direction parallel to the axis and formed integrally with each other to confine the passage, said device comprising:a first shell wall made of a heat conductive material, and having a first major wall portion which is elongated in the axial direction, which extends about the axis so as to be adapted to wrap around the first outer wall half of the condenser tube, and which terminates at two first edge surfaces that are spaced apart from each other in a transverse direction transverse to the axial direction, each of said first edge surfaces extending in the axial direction, said first major wall portion having first outer and inner wall surfaces respectively extending about the axis and opposite to each other, and a plurality of first grooves formed in said first outer wall surface and spaced apart from each other in the axial direction, each of said first grooves extending about the axis and towards said two first edge surfaces; a second shell wall made of a heat conductive material, and having a second major wall portion which is elongated in the axial direction, which extends about the axis so as to be adapted to wrap around the second outer wall half of the condenser tube, and which terminates at two second edge surfaces that are spaced apart from each other in the transverse direction, each of said second edge surfaces extending in the axial direction and being configured to complementarily mate with a respective one of said first edge surfaces so as to define a receiving chamber between said first and second shell walls for receiving fittingly the condenser tube, said second major wall portion having second outer and inner wall surfaces respectively extending about the axis and opposite to each other, and a plurality of second grooves formed in said second outer wall surface and spaced apart from each other in the axial direction, each of said second grooves extending about the axis and towards said second edge surfaces, and being registered with a respective one of said first grooves when said first and second shell walls mate with each other so as to bring said first and second grooves in a looped line; and a plurality of tightening members, each inserted into a registered pair of said first and second grooves along the looped line to tighten said first and second shell walls to each other so as to secure said first and second shell walls to the condenser tube.