发明名称 HEAT EXCHANGER AND PROCESS FOR FABRICATING SAME
摘要 <p> A heat exchanger for use as an evaporator, for example, in refrigerators wherein a hydrocarbon refrigerant is used. The heat exchanger comprises a finned zigzag tube 1 comprising a zigzag tube member 2 formed by bending a pipe having no welded seams, the zigzag tube member 2 having at least three straight tube portions 2a arranged from the front rearward at a spacing and parallel to one another, a plurality of first fin groups 3 arranged at a spacing on two adjacent straight tube portions 2a of the zigzag tube member 2 longitudinally of the straight tube portions and each comprising plate fins 5 extending across and fixedly arranged in parallel on the adjacent straight tube portions 2a, and a plurality of second fin groups 4 each comprising plate fins 6 fixedly arranged in parallel on each remaining straight tube portion 2a of the zigzag tube member 2, the second fin groups 4 being arranged at a spacing on the remaining straight tube portion 2a longitudinally thereof so as to be in the same positions as the respective first fin groups 3 with respect to the longitudinally direction of the straight tube portions 2a. The heat exchanger E comprising the finned zigzag tube 1 exhibits the desired refrigeration performance with the leakage of refrigerant diminished.</p>
申请公布号 WO2003052338(A1) 申请公布日期 2003.06.26
申请号 JP2002013119 申请日期 2002.12.16
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