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1. 发明授权

US06125925A Heat exchanger fin with efficient material utilization 失效
标题翻译：换热器翅片有效利用材料
公开(公告)号：US06125925A
公开(公告)日：2000-10-03
申请号：US29137
申请日：1998-03-09
申请人： Charles B. Obosu , Alexander T. Lim , Craig B. Woodard
发明人： Charles B. Obosu , Alexander T. Lim , Craig B. Woodard
IPC分类号： F28F1/32 , F28D1/04
CPC分类号： F28F1/325
摘要： A heat exchanger (10) including a heat exchanger conduit and fins arranged on the conduit tubes (12, 12') to further heat transfer between the external fluid flowing over the fins (22, 22') and the fluid flowing within the conduit. The fins (22, 22') include a row of apertures through which tubes (12, 12') of the heat exchanger conduit extend. The leading (4, 6) and trailing (48) edges of the fins (22, 22') are contoured to substantially conform to isotherms around the circulating fluid flowing within the tubes (12, 12'). To achieve this edge configuration while also allowing for a dense packing of fins and tubes in a multi-row heat exchanger, the leading and trailing edges are wave-shaped such that adjacent fins can interfit together.
摘要翻译： PCT No.PCT / US96 / 15447 Sec。 371日期1998年3月9日 102（e）1998年3月9日PCT PCT 1996年9月26日PCT公布。公开号WO97 / 12191 日期1997年4月3日一个热交换器（10），其包括热交换器导管和布置在导管（12,12'）上的翅片，以进一步在流过翅片（22,22'）的外部流体和流体在导管内流动。翅片（22,22'）包括一排孔，热交换器管道的管（12,12'）延伸穿过该孔。翼片（22,22'）的前缘（4,6）和后缘（48）的边缘的轮廓基本上符合在管（12,12'）内流动的循环流体周围的等温线。为了实现这种边缘构造，同时还允许在多排热交换器中的翅片和管的密集填料，前缘和后缘是波形的，使得相邻的翅片可以相互配合在一起。

2. 发明授权

US5660230A Heat exchanger fin with efficient material utilization 失效
标题翻译：换热器翅片有效利用材料
公开(公告)号：US5660230A
公开(公告)日：1997-08-26
申请号：US534274
申请日：1995-09-27
申请人： Charles B. Obosu , Alexander T. Lim
发明人： Charles B. Obosu , Alexander T. Lim
IPC分类号： F28F1/32 , F28D1/04
CPC分类号： F28F1/325
摘要： A heat exchanger including a heat exchanger conduit and fins arranged on the conduit tubes to further heat transfer between the external fluid flowing over the fins and the fluid flowing within the conduit. The fins include a row of apertures through which tubes of the heat exchanger conduit extend. The leading and trailing edges of the fins are contoured to substantially conform to isotherms around the circulating fluid flowing within the tubes. To achieve this edge configuration while also allowing for a dense packing of fins and tubes in a multi-row heat exchanger, the leading and trailing edges are wave shaped such that adjacent fins can interfit together. Suitable wave shapes include a sinusoidal wave as well as a trapezoidal wave. The isothermally contoured leading and trailing edges result in a fin configuration which efficiently utilizes the materials of its construction as well as results in minimal wastage during construction with a minimal impact on heat transfer.
摘要翻译：一种热交换器，其包括热交换器导管和布置在导管上的翅片，以在流过翅片的外部流体和在导管内流动的流体之间进一步传热。翅片包括一排孔，热交换器管道的管道延伸穿过该孔。翅片的前缘和后缘的轮廓是基本上符合在管内流动的循环流体周围的等温线。为了实现这种边缘构造，同时还允许多排热交换器中的翅片和管的密集填充，前缘和后缘是波形的，使得相邻的翅片可以相互配合在一起。合适的波形包括正弦波以及梯形波。等温成型的前缘和后缘产生翅片配置，其有效地利用其结构的材料，并且在施工期间导致最小的浪费，同时对热传递的影响最小。

3. 发明授权

US4646548A Tube expanding and grooving tool and method 失效
标题翻译：管膨胀和开槽工具及方法
公开(公告)号：US4646548A
公开(公告)日：1987-03-03
申请号：US660577
申请日：1984-10-12
申请人： Robert H. Zimmerli , Alexander T. Lim
发明人： Robert H. Zimmerli , Alexander T. Lim
IPC分类号： B21C37/20 , B21D17/00 , B21D39/06 , B21D39/20 , B21D53/00
CPC分类号： B21D39/20 , B21C37/207 , B21D17/00 , Y10T29/49384 , Y10T29/4994
摘要： A method and a tool for expanding the outside diameter and forming grooves on the inside surface of a tube. The tool comprises an axially extending mandrel, a centering portion, and a grooving portion. The centering and grooving portions of the tool are both secured to the mandrel, with the grooving portion located axially rearward of the centering portion. The centering portion radially projects outward of the mandrel, and the grooving portion is coaxial with and radially projects outward of the central portion of the tool. The central portion defines a smooth annular surface to engage and partially expand the tubes, inside and outside diameters, to guide the tube onto the grooving portion, and to maintain the grooving portion centered within the tube. The grooving portion defines an outside surface to expand the tube further, and preferably includes a plurality of external fins to form grooves on the inside surface of the tube.
摘要翻译：一种用于在管的内表面上扩展外径并形成凹槽的方法和工具。该工具包括轴向延伸的心轴，定心部分和切槽部分。工具的定心切槽部分都固定在心轴上，开槽部分位于定心部分的轴向后方。定心部分径向突出到心轴外侧，并且切槽部分与工具的中心部分同轴并且径向突出向外。中心部分限定了平滑的环形表面，以接合和部分地膨胀管的内径和外径，以将管引导到开槽部分上，并且保持切槽部分在管内居中。开槽部分限定外表面以进一步膨胀管，并且优选地包括多个外部翅片，以在管的内表面上形成凹槽。

4. 发明授权

US5404939A Condensing unit using cross-flow blower 失效
标题翻译：冷凝单元采用横流风机
公开(公告)号：US5404939A
公开(公告)日：1995-04-11
申请号：US958951
申请日：1992-10-09
申请人： Alexander T. Lim , Richard DeVos , Jeffrey B. Scott
发明人： Alexander T. Lim , Richard DeVos , Jeffrey B. Scott
IPC分类号： F24F5/00 , F24F1/00 , F28D13/12
CPC分类号： F24F1/06 , F24F1/00 , F24F1/0003 , F24F1/48 , F24F1/38 , Y10S165/309 , Y10S165/31 , Y10S62/16
摘要： The present invention involves split system air conditioners. Specifically, the present invention provides a condenser unit with cross-flow blowers. A single cross-flow blower may be used to draw air through a heat exchanger and expel the air adjacent to a cut-off portion. Further, dual cross-flow blowers may be provided to enhance the performance of the condenser unit. The combination of air streams from two cross-flow blowers provide better air circulation through the heat exchangers and a more uniform exhaust stream. The condenser unit is more compact and can be mounted on the wall, on the overhang, or on the top of the building. These various mounting locations take advantage of the air boundary layer near the building and thus the air conditioning system operates more efficiently.
摘要翻译：本发明涉及分体式空调。具体地说，本发明提供一种具有横流鼓风机的冷凝器单元。可以使用单个横流鼓风机来吸引空气通过热交换器并排出邻近截止部分的空气。此外，可以提供双交叉流动鼓风机以增强冷凝器单元的性能。来自两个横流鼓风机的气流的组合提供通过热交换器的更好的空气循环和更均匀的排气流。冷凝器单元更紧凑，可以安装在墙壁，悬垂部分或建筑物顶部。这些各种安装位置利用建筑物附近的空气边界层，因此空调系统更有效地运行。

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