Heat exchangers

• US 3,111,168 A
• Filed: 11/14/1955
• Issued: 11/19/1963
• Est. Priority Date: 11/24/1954
• Status: Expired due to Term

• Current Assignee: Andre Huet
• Original Assignee: Andre Huet
• Inventors: ANDRE HUET
• Application Number:
  US03/546,645
• Time in Patent Office: 2,927 Days
• US Class Current: 165/165
• CPC Class Codes: F28F 1/14 and extending longitudinally F28F1/38 takes precedence
• CPC Class Codes: F28F 13/06 by affecting the pattern of flow of the heat-exchange media F28F13/003 takes precedence; static flow control means in header boxes F28F9/026
• CPC Class Codes: Y10S 165/452 including fins

Claims

1. A TUBULAR HEAT EXCHANGER COMPRISING A BANK OF TUBES DISPOSED WITH THEIR LONGITUDINAL AXES SUBSTANTIALLY PARALLEL AND AT RIGHT ANGLES TO THE PRINCIPAL DIRECTION OF FLOW OF THE EXTERNAL HEAT EXCHANGE MEDIUM THROUGH THE EXCHANGER, SAID BANK OF TUBES INCLUDING A PLURALITY OF PLAIN TUBES HAVING CYLINDRICAL SURFACES AND A PLURALITY OF SECOND TUBES HAVING LONGITUDINAL FINS EXTENDING FROM THEIR OUTER SURFACES, A PLAIN TUBE BEING DISPOSED ADJACENT EACH FINNED TUBE AND EACH FIN OF EACH FINNED TUBE EXTENDING IN A PLANE DIFFERENT FROM THE PLANE PASSING THROUGH THE CENTER OF THE IMMEDIATELY ADJACENT PLAIN TUBE AND EACH FIN BEING DISPOSED OBLIQUELY WITH RESPECT TO THE PRINCIPAL DIRECTION OF FLOW OF THE EXTERNAL HEAT EXCHANGE MEDIUM TO DEFINE A FLOW PATH BETWEEN EACH FINNED TUBE AND ITS ADJACENT PLAIN TUBE, THE ENDS OF SAID FINS BEING SUBSTANTIALLY SPACED FROM THE SURFACES OF SAID PLAIN TUBES AND