Method of manufacture of a multiple finned tube

Details Method of manufacture of a multiple finned tube Method of manufacture of a multiple finned tube

1996-05-31

1998-06-09

Cuda, Irene

Metal working

Method of mechanical manufacture

Heat exchanger or boiler making

29727, B23P 1526

Patent

active

057618070

ABSTRACT:
A metallic finned tube, in particular for heat exchangers, which includes multiple integral fins helically extending on the outside, with the n fin run starts starting at the start of the tube and are evenly distributed around the tube periphery. The finned tube has a number of fin run starts n.gtoreq.4 with at least one group having at least two side-by-side oriented fin run starts (A.sub.1, A.sub.2 or rather A.sub.3, A.sub.4 . . . ).

REFERENCES:
patent: 3855832 (1974-12-01), Novak
patent: 4692978 (1987-09-01), Cunningham et al.
patent: 4765058 (1988-08-01), Zohler

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