Heat exchanger

Details Heat exchanger Heat exchanger

1981-11-02

1985-02-12

Koczo, Michael

Heat exchange

Side-by-side tubular structures or tube sections

With manifold type header or header plate

228173F, 228183, 291573R, F28F 140, F28F 900

Patent

active

044985290

ABSTRACT:
The heat exchanger according to the invention comprises extremely flat oval-shaped tubes (3) extending in a mutually parallel and spaced-apart relationship and are connected on their narrow side to manifold pipes (1,2) for forward and return flow. To ensure a sufficiently stable mechanical connection between the pipes and a satisfactory supply and discharge of the heating medium from the manifolds to the flat tubes as well as in the reverse direction, a trough (5) is formed by material removal in the manifold pipes (1a, 2a) thus creating a connection aperture (6) in the wall of the pipe. The flat tube (3a) is fitted into this trough (5) with its rim on the narrow side, to ensure a solid stable welded joint between the pipes. The flat tube (3a) is provided on its narrow side with a bore serving as a connection aperture (7), which comes to lie centrally against the connection aperture (6) in the manifold (1a, 2a). A trough in the flat tube and a bore in the manifold pipe or a respective trough in the manifold pipe and in the flat tube could be developed as alternatives.

REFERENCES:
patent: 1823028 (1931-09-01), Caldwell
patent: 2001923 (1935-05-01), Robertson et al.
patent: 2194272 (1940-03-01), Blu
patent: 3508606 (1970-04-01), Blanchard et al.

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