Refrigerant evaporator

Refrigeration – Refrigeration producer – Evaporator – e.g. – heat exchanger

Reexamination Certificate

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Reexamination Certificate

active

11100155

ABSTRACT:
A refrigerant evaporator includes a tank constituted by a tank portion and a header plate. The tank portion includes refrigerant collecting portions for guiding the refrigerant passed through a first path to the ends of the tank in the right-and-left direction and refrigerant distributing portions for guiding the refrigerant to the tubes forming a second pass. The header plate has refrigerant collecting/distributing space for the tubes. Side tanks are arranged to cover open portions at the ends of the tank in the right-and-left direction, and to spatially connect the flow passages. Separators are provided at portions where the flow passages are to be spatially blocked to constitute a front-and-rear right-and-left cross path. An increased sectional area of flow passages is obtained at the refrigerant flow corner portions relying upon a simple constitution, to decrease the pressure loss on the refrigerant side in the tank and to enhance performance.

REFERENCES:
patent: 5241839 (1993-09-01), Hughes
patent: 5448899 (1995-09-01), Ohara et al.
patent: 5562157 (1996-10-01), Hasegawa et al.
patent: 5934367 (1999-08-01), Shimmura et al.
patent: 6516486 (2003-02-01), Mehendale et al.
patent: 6827139 (2004-12-01), Kawakubo et al.
patent: 2003/0188857 (2003-10-01), Kawakubo et al.
patent: 2004/0159121 (2004-08-01), Horiuchi et al.
patent: 2004/0206490 (2004-10-01), Katoh et al.
patent: 2006/0288733 (2006-12-01), Shinmura et al.
patent: 2004-044851 (2004-02-01), None

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