Heat exchanger

Details Heat exchanger Heat exchanger

2007-09-11

2007-09-11

Walberg, Teresa J. (Department: 3744)

Heat exchange

Radiator core type

Deformed sheet forms passages between side-by-side tube means

C165S166000, C165S176000

Reexamination Certificate

active

11134875

ABSTRACT:
A heat exchanger comprises: flat tubes laminated on each other, an external fluid flowing in a space formed between the flat tubes arranged adjacent to each other; and fins interposed between the flat tubes, the fins being formed into a protruding and recessing shape having a flat plate portion joined to an outer wall face of the tube when viewed in the flow direction of the external fluid and having a vertical plate portion crossing the flat plate portion, wherein heat is exchanged between the external fluid and the internal fluid flowing in the tubes, the flat plate portion including protruding portions arranged so the protruding portions is inclined in the flow direction of the external fluid, protrusions of the protruding portions being increased toward the downstream side of the external fluid, the vertical plate portion being formed so it meanders in the flow direction of the external fluid.

REFERENCES:
patent: 2169054 (1939-08-01), Mojonnier
patent: 6820682 (2004-11-01), Hayashi et al.
patent: 2004/0177949 (2004-09-01), Shimoya et al.
patent: 2003-106794 (2003-04-01), None
patent: 2004-003802 (2004-01-01), None

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