Refrigerant evaporator having a plurality of tubes

Details Refrigerant evaporator having a plurality of tubes Refrigerant evaporator having a plurality of tubes

1998-02-26

1999-08-03

Bennett, Henry

Refrigeration

Refrigeration producer

Evaporator, e.g., heat exchanger

62524, 165146, F25B 3902

Patent

active

059310200

ABSTRACT:
A refrigerant evaporator constructed by laminating a plurality of tube elements and a flat tube element. A second refrigerant passage in the flat tube element is disposed at a position being closest to a refrigerant outlet pipe. In the second refrigerant passage, some ribs are formed such that the ribs protrude from a flat plate connected to a metal plate to construct the flat tube element. The second refrigerant passage is partitioned into several small refrigerant passages. By this, the refrigerant flow area of the second refrigerant passage is smaller than that of the other refrigerant passages. That is, the refrigerant flow resistance of the second refrigerant passage is larger than that of other refrigerant passages. Accordingly, the refrigerant is prevented from flowing into the second refrigerant passage of the flat tube element.

REFERENCES:
patent: 4821531 (1989-04-01), Yamauchi et al.
patent: 5701760 (1997-12-01), Torigoe et al.
patent: 5735343 (1998-04-01), Kajikawa et al.
patent: 5765393 (1998-06-01), Schlak et al.

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