SCAMBIATORE DI CALORE, IN PARTICOLARE RADIATORE DELL'ARIA DI SOVRALIMENTAZIONE DI UN MOTORE A COMBUSTIONE INTERNA

摘要

A heat exchanger is provided with a matrix of plates 1, 2 arranged in a stack to form separate ducts 3, 4 for two heat exchanging fluids. At least one distribution pipe 7 is formed, which is connected to the inflow or outflow ends of the first ducts 4 and is sealed relative to the second ducts 3. The plates are connected to one another in pairs in a sealing-tight manner at their outer edge region and have matching, shaped sections enclosing chambers 13 connected to the first ducts 4. In each chamber two concentric spacing rings 14, 15 form a double column taking the clamping force of the stack and along with openings in the shaped sections form the distribution pipe 7. The spacing rings comprise radial apertures 20, 21 communicating with the first ducts and form an annular chamber 19 within each chamber 13. Elastically deformable sealing rings 16 may be aligned at both axial ends of the annular chamber 19 for sealing the distribution pipe relative to the second ducts 3.