| 摘要 |
1. A radiator comprising at least one module, in turn comprising a tubular portion with a flat cross section; opposite top and bottom ends having respective lateral hydraulic fittings substantially aligned along a minor axis of the cross section; and a finned portion formed integrally in one piece with a lateral wall of the tubular portion; the finned portion including first fins originating directly from the tubular portion, and second fins originating transversely from respective front ribs in turn originating from the tubular portion and perpendicular to the first fins; the ribs being substantially aligned with a major axis of the cross section; characterized in that the cross section has a dimension (D), measured along the major axis, smaller than or equal to approximately 45% of the depth (P) of the module, also measured along the major axis. 2. A radiator as claimed in Claim 1, characterized in that a root portion of each rib has no fins, and comprises a number of respective ridges connecting the rib both to the lateral wall of the tubular portion, and to a respective second fin carried by the rib and immediately adjacent to the tubular portion. 3. A radiator as claimed in claim 1 or 2, characterized in that said cross section of the tubular portion has a wall thickness (S) ranging between approximately 2.4 and approximately 4.5 mm. 4. A radiator as claimed in one of the foregoing Claims, characterized in that said cross section of the tubular portion has a dimension (L), measured along the minor axis, equal to or greater than approximately 15% of the dimension (D) of the same cross section measured along the major axis. 5. A radiator as claimed in any one of the foregoing Claims, characterized in that the dimensions (D) (L) measured along the major axis (X) and minor axis (Y) of each cross section (4) may vary along the axial extension of the tubular portion (3), or may remain substantially constant along the whole axial extension of the tubular portion (3). 6. A radiator as claimed in any one of the foregoing Claims, characterized in that, at least along an axial portion of the tubular portion having said first fins, said cross section of the tubular portion is in the shape of a substantially rectangular ring with rounded corners and slightly outward-curving sides. 7. A radiator as claimed in any one of the foregoing Claims, characterized in that the depth (P) of the module, measured along the major axis of the cross section of the tubular portion, is over 80 mm. |
