| 摘要 |
A heat exchanger (1) for an air conditioning circuit of a vehicle comprising a central tube (2) for refrigerating fluid and a tubular covering (3) housing the central tube (2) and defining a fixed pipe (4) for the refrigerating fluid with the central tube (2), wherein at least the tubular covering (3) defines a helical relief (10) obtained by means of plastic deformation to convey the refrigerating fluid fluid along a helical path around the central tube (2). |
