Heat exchanger tube and heat exchanger using the same

Heat exchange – Side-by-side tubular structures or tube sections – With manifold type header or header plate

Reexamination Certificate

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Details

C165S177000, C165S140000

Reexamination Certificate

active

06854512

ABSTRACT:
A heat exchanger tube and a heat exchanger that uses the heat exchanger tube. The heat exchanger tube is provided with a generally flat body has a plurality of refrigerant passages that pass through the interior of the flat body in the length direction thereof. The tube includes refrigerant passages which are provided with a plurality of inside passages, each of which has a first curved portion that is made by changing a predetermined curve over at least a time or more to form a curve changing point protruding in the width direction of the body. A second curved portion is formed opposite to the first curved portion and is connected slowly to the first curved portion to thereby form a curve closed face. A pair of outside passages is disposed on the outermost both ends of the plurality of inside passages.

REFERENCES:
patent: 4512069 (1985-04-01), Hagemeister
patent: 5476141 (1995-12-01), Tanaka
patent: 5904206 (1999-05-01), Kroetsch
patent: 6000467 (1999-12-01), Tokizaki et al.
patent: 6216776 (2001-04-01), Kobayashi et al.
patent: 6289981 (2001-09-01), Tokizaki et al.
patent: 6340055 (2002-01-01), Yamauchi et al.
patent: 0990828 (2000-04-01), None
patent: 11159985 (1999-06-01), None
patent: 2000018867 (2000-01-01), None
patent: 2000356488 (2000-12-01), None

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