초록 ▼

An apparatus and method for making a heat exchanger tube (14) for a heat exchanger (10) in which a continuous insert (26), having convolutes transverse to the length of the tube are located into a continuous shell as the shell is being formed. After placing the insert (26) into the partially open sh

An apparatus and method for making a heat exchanger tube (14) for a heat exchanger (10) in which a continuous insert (26), having convolutes transverse to the length of the tube are located into a continuous shell as the shell is being formed. After placing the insert (26) into the partially open shell, the shell is closed and sealed as it passes through a bonding device (64) to seal the longitudinal edges of the shell to each other and the insert to the internal walls of the tube. The continuous shell with the inserted fin insert is subsequently sliced to produce individual cooling tubes.

대표청구항 ▼

1. A method for making a tube for a heat exchanger comprising:forming, with a first set of rolls, a continuous metal shell from a metal strip, the metal shell having a closed longitudinal edge and a pair of partially open longitudinal edges; placing a continuous fin insert into the continuous metal

1. A method for making a tube for a heat exchanger comprising:forming, with a first set of rolls, a continuous metal shell from a metal strip, the metal shell having a closed longitudinal edge and a pair of partially open longitudinal edges; placing a continuous fin insert into the continuous metal shell, said fin insert being placed into the metal shell at a location intermediate said closed longitudinal edge and said pair of partially open longitudinal edges, the fin insert having a high density of convolutions extending in a direction transverse to the closed and partially open longitudinal edges; and closing the pair of partially open longitudinal edges of the continuous metal shell around the fin insert with a set of closing rolls to seal the metal shell, the closing of the pair of partially open longitudinal edges forming a sealed longitudinal edge, the sealed metal shell having a first internal longitudinal channel formed between the fin insert and the closed longitudinal edge and a second internal longitudinal channel formed between the fin insert and the sealed longitudinal edge.