Gregory F Hughes

US Patent:

57946922, Aug 18, 1998

Filed:

Oct 28, 1993

Appl. No.:

8/144735

Inventors:

Mark G. Voss - Brighton MI
Zalman P. Saperstein - Lake Bluff IL
Peter C. Kottal - Racine WI
Gregory G. Hughes - Milwaukee WI

Assignee:

Modine Manufacturing Co. - Racine WI

International Classification:

F28F 902

US Classification:

165175

Abstract:

Restrictions on the major dimension of flattened tubes used in heat exchangers employing oval shaped, two piece headers/tank assemblies can be minimized in a construction including a plurality of flattened tubes (14) each having a minor dimension and a major dimension transverse thereto and extending in spaced parallel relation. Fins (16) are in heat exchange relation with the tubes (14) and a pair of spaced, parallel, elongated headers/tank assemblies (10, 12) are provided between which the tubes (14) extend. At least one of the headers/tank assemblies (10, 12) is a multiple piece header/tank assembly including a header piece (20) and a separate tank piece (22). The header piece (20) is elongated and provided with a plurality of slots (28) sized to receive ends of the tubes (14) with the tube major dimensions being generally transverse to the direction of elongation of the header piece (20). The header piece further includes a peripheral flange (24). The tank piece (22) is elongated, concave and has a peripheral flange (44) nested within the peripheral flange (22) of the header piece (20).