Parallel flow heat exchanger for heat pump applications

G - Physics – 05 – D

Patent

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Details

G05D 23/00 (2006.01) F25B 13/00 (2006.01) F25B 27/00 (2006.01) F28F 9/02 (2006.01) F28F 27/00 (2006.01) F28F 27/02 (2006.01)

Patent

CA 2596324

A parallel flow heat exchanger system (10, 50, 100, 200) for heat pump applications in which single and multiple paths of variable length are established via flow control systems which also allow for refrigerant flow reversal within the parallel flow heat exchanger system (10, 50, 100, 200), while switching between cooling and heating modes of operation. Examples of flow control devices are an expansion device (80) and various check valves (70, 72, 74, 76). The parallel flow heat exchanger system may have converging or diverging flow circuits and may constitute a single-pass or a multi-pass evaporator together with and a multi-pass condenser.

Système échangeur de chaleur à écoulement parallèle (10, 50, 100, 200) pour applications de type pompe à chaleur, comprenant des chemins d'écoulement simples et multiples de longueur variable établis par des systèmes de contrôle de l'écoulement qui permettent également d'inverser le sens d'écoulement du fluide réfrigérant à l'intérieur du système échangeur de chaleur à écoulement parallèle (10, 50, 100, 200) tout en permettant le basculement entre les modes de chauffage et de réfrigération. Des exemples de dispositifs de contrôle de l'écoulement comprennent un dispositif d'expansion (80) et divers robinets d'arrêt (70, 72, 74, 76). Le système échangeur de chaleur à écoulement parallèle peut présenter des circuits d'écoulement convergents ou divergents et peut comporter un évaporateur à simple passe ou multipasse combiné à un condenseur multipasse.

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