公开(公告)号：US4831844A

公开(公告)日：1989-05-23

申请号：US198881

申请日：1988-05-26

申请人： Durgaprasad S. Kadle

发明人： Durgaprasad S. Kadle

IPC分类号： F25B39/04 ,  F28F1/32

CPC分类号： F28F1/32 ,  F25B39/04

摘要： A condenser for an air conditioning system has a tube and fin design. The tubular flow path divides into two parallel paths at the condenser inlet. The two paths combine at a junction at a point about two thirds of the distance to the outlet. A single path connects the junction to the outlet. In general condensation of the refrigerant occurs in the dual path and liquid flows at high velocity in the single path to the outlet for better heat transfer and reduced liquid volume in the tubular path.

摘要翻译： 用于空调系统的冷凝器具有管和翅片设计。 管状流动路径在冷凝器入口处分成两条平行路径。 两个路径在距离出口距离的三分之一处的点处结合在一起。 单个路径将连接点连接到插座。 一般来说，制冷剂在双路径中发生冷凝，液体以高速流动到出口的单一路径中，以更好地传热和减小管状路径中的液体体积。

公开(公告)号：US4958681A

公开(公告)日：1990-09-25

申请号：US393157

申请日：1989-08-14

申请人： Durgaprasad S. Kadle

发明人： Durgaprasad S. Kadle

IPC分类号： F28F1/12 ,  F28F1/24

CPC分类号： F28F1/24 ,  F28F1/128 ,  Y10S165/503

摘要： Louvered fins in fin and tube type heat exchangers extend across the spaces between adjacent tubes. Adjacent tubes are separated by a distance s and louvers in the fins extend between the tubes but stop short of the tubes to leave some plain fin area which defines a bypass channel of width b between each tube and adjacent louvers. The curve of heat transfer versus air side pressure drop increases as the ratio b/s decreases. An optimum value of b/s occurs at the knee of the curve and lower values of the ratio effect insignificant improvements in heat transfer.

摘要翻译： 散热片和管式热交换器中的散热片延伸穿过相邻管之间的空间。 相邻的管分开距离s，翅片在管之间延伸，并且在管之间保持短路，留下一些平坦的翅片区域，其限定每个管和相邻百叶窗之间的宽度为b的旁通通道。 随着b / s比的降低，传热与空气侧压降的关系曲线也随之增加。 b / s的最佳值发生在曲线的拐点处，较小的比值影响传热的显着改善。

公开(公告)号：US5099913A

公开(公告)日：1992-03-31

申请号：US474891

申请日：1990-02-05

申请人： Durgaprasad S. Kadle

发明人： Durgaprasad S. Kadle

IPC分类号： B60H1/32 ,  F28D1/03 ,  F28F13/08

CPC分类号： B60H1/3227 ,  B60H1/00335 ,  F28D1/0341 ,  F28F13/08

摘要： A heat exchanger having a plurality of flat and elongated tube passes operatively interconnected therein with inlet and outlet openings adjacent to one another so that refrigerant flowing therethrough can transfer the heat energy from a cross flow of air streaming between the tube passes. The tube passes have a divider rib offset so that the volume on the outlet or increased quantity side of each pass is greater than the volume on the inlet or low quantity vapor side. With a large volume available for vapor expansion, pressure drop is minimized and heat transfer performance is maximized in the heat exchanger.

摘要翻译： 具有多个平坦且细长的管道的热交换器通过其中互相连接的入口和出口开口，使得流过其中的制冷剂可以将热能从在管道之间流动的空气流传递。 管道具有分隔肋偏移，使得每个通道的出口或增加量侧上的体积大于入口或低量蒸汽侧的体积。 具有可用于蒸气膨胀的大体积，压力降最小化，热交换器的传热性能最大化。

公开(公告)号：US5120193A

公开(公告)日：1992-06-09

申请号：US718461

申请日：1991-06-20

申请人： Durgaprasad S. Kadle ,  Andrew R. Morris ,  James H. Fu

发明人： Durgaprasad S. Kadle ,  Andrew R. Morris ,  James H. Fu

IPC分类号： F04D29/42 ,  F04D29/66

CPC分类号： F04D29/663 ,  F04D29/4226

摘要： A scroll housing includes a spiral portion and an outlet portion. A blower fan is mounted on the spiral portion and rotated to draw an axial air current into the scroll housing. The airflow is channeled away from the scroll housing by the outlet portion which is tangentially aligned with the blower fan. A baffle is mounted on an interior surface of the spiral portion upstream from a cutoff provided adjacent the intersection of the spiral portion and the outlet portion. The baffle projects into the exiting airflow from the blower fan and reduces airflow noise.

摘要翻译： 涡旋壳体包括螺旋部分和出口部分。 鼓风扇安装在螺旋部分上并旋转以将轴向气流拉入涡旋壳体。 通过与鼓风机风扇切向对准的出口部分将气流引导离开涡旋壳体。 挡板安装在螺旋部分的内表面上，该切口设置成邻近螺旋部分和出口部分的相交处。 挡风板从鼓风机风扇突出出来的气流，并减少气流噪音。

公开(公告)号：US4901791A

公开(公告)日：1990-02-20

申请号：US223984

申请日：1988-07-25

申请人： Durgaprasad S. Kadle

发明人： Durgaprasad S. Kadle

IPC分类号： F25B39/04 ,  F28D1/047

CPC分类号： F28D1/0478 ,  F25B39/04 ,  F28D2021/0084

摘要： A refrigeration condenser has at least two serpentine paths of unequal lengths (effected by unequal numbers of loops in the paths) extending between common inlet and outlet ports. By adding this design capability to the conventional equal path length condensers greater design flexibility is provided to permit smaller incremental size changes from conventional equal path length condensers, and allows inlet and outlet ports to be on the same side or on opposite sides without any change in condenser size or performance.

摘要翻译： 制冷冷凝器具有在公共入口和出口之间延伸的至少两个不等长度的蛇形路径（由路径中不同数量的环路影响）。 通过将这种设计能力添加到传统的相等路径长度的冷凝器中，提供了更大的设计灵活性，以允许从常规的相等路径长度的冷凝器进行更小的增量尺寸变化，并允许入口和出口在同一侧或相对侧上，而没有任何变化 冷凝器尺寸或性能。