Heat pump heat exchanger having a low pressure dro

专利名称：Heat pump heat exchanger having a low

pressure drop distribution tube

发明人：Yanping Xia,Russell S. Johnson申请号：US14073948申请日：20131107公开号：US09746255B2公开日：20170829

专利附图：

摘要：A heat pump heat exchanger includes a first manifold, a second manifold spacedfrom the first manifold, a plurality of refrigerant tubes hydraulically connecting themanifolds, and a distribution tube disposed in the first manifold. The distribution tube

includes an inlet end, a distal end opposite the inlet end, a plurality of orifices betweenthe inlet end and the distal end. The distribution tube also includes a terminal apertureimmediately adjacent the distal end, wherein the terminal aperture includes an openaperture area greater than any one of the open orifice area. The open aperture area islarge enough to provide a uniform refrigerant collection with acceptable minimalpressure drop in evaporative mode, but small enough to prevent vapor overflow to anarea of the manifold adjacent to the distal end in condenser mode. The length of thedistribution tube is less than ¾ the length of the first manifold.

申请人：MAHLE International GmbH

地址：Stuttgart DE

国籍：DE

代理机构：Brinks Gilson & Lione

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