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1. 发明授权

US06167950A Heat transfer tube 失效
标题翻译：传热管
公开(公告)号：US06167950A
公开(公告)日：2001-01-02
申请号：US08672383
申请日：1996-05-28
申请人： Neelkanth S. Gupte , Xin Liu , Steven J. Spencer , Robert H. L. Chiang , Daniel Gaffaney
发明人： Neelkanth S. Gupte , Xin Liu , Steven J. Spencer , Robert H. L. Chiang , Daniel Gaffaney
IPC分类号： F28F1318
CPC分类号： F28F13/182 , F28F1/36 , F28F1/42 , F28F1/422 , F28F17/005
摘要： A heat transfer tube (10) for use in an application, such as a shell and tube type air conditioning system condenser, in which a fluid flowing through the heat exchanger external to the tubes condenses by transfer of heat to a cooling fluid flowing through the tubes. The tube has at least one fin convolution (20) extending helically around its external surface (13). A pattern of notches (30) extends at an oblique angle (&agr;) across the fin convolutions at intervals about the circumference of the tube. There is a spike (22) between each pair of adjacent notches. The fin convolution, notches and spikes are formed in the tube by rolling the wall of the tube between a mandrel and, first, a gang of finning disks (63) and, second, a notching wheel (66). Because, during the manufacture of the tube, of the interaction of the rotating and advancing tube and the notching wheel, the angle (&bgr;) of inclination of the axis of the tip of the spike is oblique with respect to the notch angle. The maximum width (Wt) of the spike is greater than the width (Wr) of the proximal portion of the fin convolution.
摘要翻译：一种用于诸如管壳式空调系统冷凝器的应用中的传热管（10），其中流过管外部的热交换器的流体通过将热传递到流过管。管具有围绕其外表面（13）螺旋延伸的至少一个翅片卷（20）。切口（30）的图案以围绕管圆周的间隔跨越翅片卷绕以倾斜角（α）延伸。每对相邻凹口之间有一个尖峰（22）。通过在心轴和第一组翅片（63）之间滚动管的壁而在管中形成翅片卷积，切口和钉，并且第二切口轮（66）在管中形成。因为在管的制造期间，旋转和前进管与开槽轮的相互作用，尖峰的轴线的倾斜角度（β）相对于切口角度是倾斜的。尖峰的最大宽度（Wt）大于翅片卷积的近端部分的宽度（Wr）。

2. 发明授权

US5333682A Heat exchanger tube 失效
标题翻译：热交换器管
公开(公告)号：US5333682A
公开(公告)日：1994-08-02
申请号：US120197
申请日：1993-09-13
申请人： Xin Liu , Steven J. Spencer , Neelkanth S. Gupte , Robert H. L. Chiang , Daniel Gaffaney
发明人： Xin Liu , Steven J. Spencer , Neelkanth S. Gupte , Robert H. L. Chiang , Daniel Gaffaney
IPC分类号： F28F1/12 , F28F1/26 , F28F1/36 , F28F13/18
CPC分类号： F28F13/187 , F28F1/26 , Y10S165/911
摘要： A tube for use in a heat exchanger where heat is transferred between a fluid flowing through the tube and a fluid flowing around the exterior of the tube and where the fluid external to the tube boils during the heat exchange process. The tube has one or more external fin convolutions extending from its external surface. At intervals along each side surface of the fin convolutions there are shoulder notches extending from the fin side surfaces. The groove space between adjacent fin convolutions has raised teeth located circumferentially at intervals. The fin convolutions do not extend perpendicularly from the tube surface but are inclined, with one convolution overlying an adjacent groove but not touching its adjacent neighbor fin convolution to form a re-entrant boiling cavity with an opening gap. In one embodiment, the opening gap extends completely around the circumference of the tube. In another embodiment, the curved fin convolutions are depressed at intervals around the circumference of the tube so that a fin convolution is in close proximity to its adjacent neighbor closing the gap in the vicinity of the depression.
摘要翻译：一种用于热交换器的管，其中热量在流过管的流体和围绕管的外部流动的流体之间传递，并且在外部的流体在热交换过程中沸腾。该管具有从其外表面延伸的一个或多个外部翅片卷积。沿着翅片卷的每个侧表面的间隔，存在从翅片侧表面延伸的肩部凹口。相邻鳍片之间的凹槽间隔周期地凸出齿。翅片卷积不垂直于管表面延伸，而是倾斜，其中一个卷积覆盖相邻的凹槽，但不接触其相邻的相邻翅片卷积，以形成具有开口间隙的重新沸腾的空腔。在一个实施例中，开口间隙完全围绕管的圆周延伸。在另一个实施例中，弯曲的翅片卷绕围绕管的圆周间隔地被压下，使得翅片卷绕紧邻其相邻的邻近物，其邻近凹陷处的间隙。

3. 发明授权

US5933953A Method of manufacturing a heat transfer tube 失效
标题翻译：传热管的制造方法
公开(公告)号：US5933953A
公开(公告)日：1999-08-10
申请号：US814471
申请日：1997-03-17
申请人： Steven J. Spencer , Neelkanth S. Gupte
发明人： Steven J. Spencer , Neelkanth S. Gupte
IPC分类号： B21C37/20 , F28F1/36 , F28F1/42 , F28F13/18 , F28F17/00 , B23P15/26
CPC分类号： F28F1/42 , B21C37/207 , F28F1/36 , F28F1/422 , F28F13/18 , F28F17/005 , Y10T29/49385 , Y10T29/49391 , Y10T29/53122
摘要： A method of manufacturing a heat transfer tube (10) having an external surface that is configured for enhanced heat transfer performance in both refrigerant evaporating and condensing applications. The tube is suitable for use in, for example, shell and tube type air conditioning condensers, flooded evaporators, falling film evaporator, or a combination of flooded and falling film evaporator. The tube has at least one fin convolution (20) extending helically around its external surface (13). A pattern of notches (30) extends at an oblique angle (.alpha.) across the fin convolutions at intervals about the circumference of the tube. There is a split spike (22) having two distal tips (23) between each pair of adjacent notches. The fin convolution, notches and split spikes are formed in the tube by rolling the wall of the tube between a mandrel and, first, a gang of finning disks (63), second, a notching wheel (66) and third, a splitter wheel (67). Because of the interaction of the rotating and advancing tube and the notching wheel, during the manufacture of the tube, the maximum width (W.sub.t) of the spike is greater than the width (W.sub.r) of the proximal portion of the fin convolution.
摘要翻译：一种制造具有外表面的传热管（10）的方法，所述外表面被配置为在制冷剂蒸发和冷凝应用中提高传热性能。该管适用于例如壳管式空调冷凝器，淹没式蒸发器，降膜蒸发器，或溢流式和降膜型蒸发器的组合。管具有围绕其外表面（13）螺旋延伸的至少一个翅片卷（20）。切口（30）的图案以围绕管圆周的间隔跨越翅片卷绕以倾斜角（α）延伸。在每对相邻凹口之间具有两个远端尖端（23）的裂缝钉（22）。通过在心轴之间滚动管的壁，并且首先组合的金属盘（63），第二，开槽轮（66）和第三分接轮（63），在管中形成翅片卷积，切口和分裂尖（67）。由于旋转和前进管和开槽轮的相互作用，在制造管时，尖峰的最大宽度（Wt）大于翅片卷绕的近端部分的宽度（Wr）。

4. 发明授权

US08769970B2 Refrigerated case with reheat and preconditioning 有权
标题翻译：具有再加热和预处理的冷藏箱
公开(公告)号：US08769970B2
公开(公告)日：2014-07-08
申请号：US12089446
申请日：2005-11-28
申请人： Kwok K. Fung , Neelkanth S. Gupte
发明人： Kwok K. Fung , Neelkanth S. Gupte
IPC分类号： F25D17/06 , A47F3/04 , F25B29/00 , F25B39/02
CPC分类号： F25D17/06 , A47F3/0443 , F25B39/02 , F25D17/042
摘要： A refrigerated case (20) has a housing containing an interior volume (36) for storing items. Along an air flow path (510) through the case, a refrigerant-to-air heat exchanger (60) has an evaporator section (112) and a reheat section (114). A preconditioning section (110) may be upstream of the evaporator section (112) and the evaporator section is upstream of the reheat section (114). Along a refrigerant flow path (520), the reheat section (114) is downstream of the preconditioning section (110) (if any) and upstream of the evaporator section (112) and an expansion device (62) is between the reheat (114) and evaporator (112) sections.
摘要翻译：冷藏箱（20）具有容纳用于存放物品的内部容积（36）的壳体。沿着通过壳体的空气流动路径（510），制冷剂对空气热交换器（60）具有蒸发器部分（112）和再热部分（114）。预处理部分（110）可以在蒸发器部分（112）的上游，并且蒸发器部分在再热部分（114）的上游。沿着制冷剂流动路径（520），再热部分（114）在预处理部分（110）的下游（如果有的话）和蒸发器部分（112）的上游，并且膨胀装置（62）在再热）和蒸发器（112）部分。

5. 发明申请

US20090120108A1 CO2-REFRIGERANT DEVICE WITH HEAT RECLAIM 审中-公开
标题翻译：具有热回收的二氧化碳冷冻装置
公开(公告)号：US20090120108A1
公开(公告)日：2009-05-14
申请号：US11816337
申请日：2005-02-18
申请人： Bernd Heinbokel , Siegfried Haaf , Neelkanth S. Gupte , Ulf J. Jonsson , Tobias H. Sienel
发明人： Bernd Heinbokel , Siegfried Haaf , Neelkanth S. Gupte , Ulf J. Jonsson , Tobias H. Sienel
IPC分类号： F24F3/16 , F25B1/10 , F25B7/00 , A47F3/04 , F25B1/00
CPC分类号： F25B1/10 , F25B9/008 , F25B29/00 , F25B29/003 , F25B2309/061 , F25B2339/047 , F25B2400/075 , F25B2400/22 , F25D21/10 , F25D21/12
摘要： A refrigeration device containing CO2 a refrigerant to be circulated, comprising: a compressor (1, 10, 11), a heat-rejecting heat exchanger (3, 30), an expansion device (7a, 7b, 70a, 70b, 71), and an evaporator (8a, 8b, 80a, 80b, 81) which are connected to one another, wherein the refrigeration device comprises a first portion (61, 71, 81, 11, 92, 10) and a second portion (60, 70a, 80a, 90, 10), the second portion having a higher temperature relative to the first portion when the refrigeration device is in operation; and a heat-reclaim heat exchanger (E1, E2, E3, E4) provided at a given location in the second portion, provided to transfer heat to a fluid for further use as a source of heated fluid.
摘要翻译： 1.一种制冷装置，其特征在于，具备：循环的制冷剂，其特征在于，包括：压缩机（1,10,11），排热热交换器（3,30），膨胀装置（7a，7b，70a，70b，71）以及彼此连接的蒸发器（8a，8b，80a，80b，81），其中，所述制冷装置包括第一部分（61,71,81,119,92,10）和第二部分（60,70a），80a，90,10），所述第二部分在所述制冷装置运转时相对于所述第一部分具有较高的温度; 以及设置在第二部分中的给定位置处的热回收热交换器（E1，E2，E3，E4），用于将热量传递到流体以进一步用作加热流体源。

6. 发明申请

US20080271473A1 Refrigerated Case 有权
标题翻译：冷藏箱
公开(公告)号：US20080271473A1
公开(公告)日：2008-11-06
申请号：US12089446
申请日：2005-11-28
申请人： Kwok K. Fung , Neelkanth S. Gupte
发明人： Kwok K. Fung , Neelkanth S. Gupte
IPC分类号： F25D17/06 , F25B39/02 , F28F1/10 , F25B1/00 , F25D17/00
CPC分类号： F25D17/06 , A47F3/0443 , F25B39/02 , F25D17/042
摘要： A refrigerated case (20) has a housing containing an interior volume (36) for storing items. Along an air flow path (510) through the case, a refrigerant-to-air heat exchanger (60) has an evaporator section (112) and a reheat section (114). A preconditioning section (110) may be upstream of the evaporator section (112) and the evaporator section is upstream of the reheat section (114). Along a refrigerant flow path (520), the reheat section (114) is downstream of the preconditioning section (110) (if any) and upstream of the evaporator section (112) and an expansion device (62) is between the reheat (114) and evaporator (112) sections.
摘要翻译：冷藏箱（20）具有容纳用于存放物品的内部容积（36）的壳体。沿着通过壳体的空气流动路径（510），制冷剂对空气热交换器（60）具有蒸发器部分（112）和再热部分（114）。预处理部分（110）可以在蒸发器部分（112）的上游，并且蒸发器部分在再热部分（114）的上游。沿着制冷剂流动路径（520），再热部分（114）在预处理部分（110）的下游（如果有的话）和蒸发器部分（112）的上游，并且膨胀装置（62）在再热）和蒸发器（112）部分。

7. 发明授权

US06532763B1 Evaporator with mist eliminator 有权
标题翻译：带除雾器的蒸发器
公开(公告)号：US06532763B1
公开(公告)日：2003-03-18
申请号：US10139572
申请日：2002-05-06
申请人： Neelkanth S. Gupte
发明人： Neelkanth S. Gupte
IPC分类号： F25B3902
CPC分类号： F28D21/0017 , F25B39/02 , F25B40/00 , F25B2339/0242 , F25B2500/28
摘要： In a refrigeration system having a cooler with liquid refrigerant therein, a heat exchanger is provided above the heat transfer tubes so as to interrupt any liquid refrigerant droplets that tend to be entrained in the refrigerant vapor as it is boiled off from the heat transfer tubes and caused to pass upwardly to the compressor suction inlet. The liquid droplets that collect on the heat exchanger are boiled off with the resultant refrigerant vapor passing on to the compressor suction inlet. The heat exchanger medium passing through the heat exchanger can be the cooling fluid that subsequently passes through the heat transfer tubes, or it may be condensate that is received from the condenser.
摘要翻译：在具有其中具有液体制冷剂的冷却器的制冷系统中，在传热管上方设置有热交换器，以便中断任何液体制冷剂液滴，所述液体制冷剂液滴在从传热管中被蒸发时倾向于夹带在制冷剂蒸气中，导致压缩机吸入口向上传递。在热交换器上收集的液滴被蒸发，所得到的制冷剂蒸汽传递到压缩机吸入口。通过热交换器的热交换器介质可以是随后通过传热管的冷却流体，或者可以是从冷凝器接收的冷凝物。

8. 发明授权

US08011192B2 Method for defrosting an evaporator in a refrigeration circuit 有权
标题翻译：用于对制冷回路中的蒸发器进行除霜的方法
公开(公告)号：US08011192B2
公开(公告)日：2011-09-06
申请号：US11993499
申请日：2005-06-23
申请人： Neelkanth S. Gupte
发明人： Neelkanth S. Gupte
IPC分类号： F25B41/00
CPC分类号： F25B47/022 , F25B39/02 , F25B2400/22 , F25B2700/11 , F28D7/0066
摘要： Method for defrosting an evaporator in a refrigeration circuit (2) for circulating a refrigerant in a predetermined flow direction, the refrigeration circuit (2) comprising in flow direction a compressor unit (4), a heat-rejecting heat exchanger (6), an expansion device (12) and an evaporator (14), wherein the evaporator (14) comprises at least two refrigerant conduits (42; 44) and the method comprises the following steps: (a) operating the refrigeration circuit (2) in the normal cooling mode where the refrigerant exiting the heat-rejecting heat exchanger (6) flows through the expansion device (12) and through the evaporator (14) and towards the compressor unit (4); (b) terminating the cooling mode by interrupting the flow of the refrigerant exiting the heat-rejecting heat exchanger (6) into the evaporator (14); and (c) directing hot gas refrigerant through only a portion of the refrigerant conduits (42; 44) of the evaporator (14) for defrosting the evaporator (14).
摘要翻译：制冷回路（2）中的用于使制冷剂在预定流动方向上循环的蒸发器的除霜方法，所述制冷回路（2）沿流动方向包括压缩机单元（4），排热热交换器（6），膨胀装置（12）和蒸发器（14），其中所述蒸发器（14）包括至少两个制冷剂管道（42; 44），并且所述方法包括以下步骤：（a）将所述制冷回路（2）冷却模式，其中离开排热热交换器（6）的制冷剂流过膨胀装置（12）并通过蒸发器（14）并朝向压缩机单元（4）流动; （b）通过中断从排热热交换器（6）流出的制冷剂流入蒸发器（14）来终止冷却模式; 和（c）引导热气体制冷剂仅通过蒸发器（14）的制冷剂管道（42; 44）的一部分，用于对蒸发器（14）进行除霜。

9. 发明申请

US20100192600A1 AIR COOLED DISPLAY CASE SHELF 审中-公开
标题翻译：空气冷却展示柜
公开(公告)号：US20100192600A1
公开(公告)日：2010-08-05
申请号：US12602044
申请日：2007-06-08
申请人： Charles R. Schenk , Neelkanth S. Gupte
发明人： Charles R. Schenk , Neelkanth S. Gupte
IPC分类号： F25D17/06 , A47F3/04 , F25B1/00 , F28D7/02
CPC分类号： A47F3/0413
摘要： A refrigerated display case is provided that includes a display chamber for displaying product. The display chamber includes a product tray for supporting the product. A cooling chamber is arranged beneath the product and is in communication with a surface of the product tray. The cooling chamber is sealed from the display chamber, in one example, and includes a cooling coil. A fan is in communication with the cooling chamber and cooling coil. The fan circulates a cooling flow through the cooling coil. The cooling flow moves across the surface and absorbs heat from the product tray by convection. The cooled product tray removes heat from the product by conduction.
摘要翻译：提供了一种冷藏陈列柜，其包括用于显示产品的显示室。显示室包括用于支撑产品的产品托盘。冷却室布置在产品下方并与产品托盘的表面连通。在一个示例中，冷却室与显示室密封，并且包括冷却盘管。风扇与冷却室和冷却盘管连通。风扇使冷却流通过冷却盘管。冷却流动通过表面移动，并通过对流从产品托盘吸收热量。冷却的产品托盘通过传导从产品中除去热量。

10. 发明申请

US20090320504A1 Method for Defrosting an Evaporator in a Refrigeration Circuit 有权
标题翻译：在制冷回路中除霜蒸发器的方法
公开(公告)号：US20090320504A1
公开(公告)日：2009-12-31
申请号：US11993499
申请日：2005-06-23
申请人： Neelkanth S. Gupte
发明人： Neelkanth S. Gupte
IPC分类号： F25B41/00 , F25B1/00 , F25B39/02
CPC分类号： F25B47/022 , F25B39/02 , F25B2400/22 , F25B2700/11 , F28D7/0066
摘要： Method for defrosting an evaporator in a refrigeration circuit (2) for circulating a refrigerant in a predetermined flow direction, the refrigeration circuit (2) comprising in flow direction a compressor unit (4), a heat-rejecting heat exchanger (6), an expansion device (12) and an evaporator (14), wherein the evaporator (14) comprises at least two refrigerant conduits (42; 44) and the method comprises the following steps: (a) operating the refrigeration circuit (2) in the normal cooling mode where the refrigerant exiting the heat-rejecting heat exchanger (6) flows through the expansion device (12) and through the evaporator (14) and towards the compressor unit (4); (b) terminating the cooling mode by interrupting the flow of the refrigerant exiting the heat-rejecting heat exchanger (6) into the evaporator (14); and (c) directing hot gas refrigerant through only a portion of the refrigerant conduits (42; 44) of the evaporator (14) for defrosting the evaporator (14).
摘要翻译：制冷回路（2）中的用于使制冷剂在预定流动方向上循环的蒸发器的除霜方法，所述制冷回路（2）沿流动方向包括压缩机单元（4），排热热交换器（6），膨胀装置（12）和蒸发器（14），其中所述蒸发器（14）包括至少两个制冷剂管道（42; 44），并且所述方法包括以下步骤：（a）将所述制冷回路（2）冷却模式，其中离开排热热交换器（6）的制冷剂流过膨胀装置（12）并通过蒸发器（14）并朝向压缩机单元（4）流动; （b）通过中断从排热热交换器（6）流出的制冷剂流入蒸发器（14）来终止冷却模式; 和（c）引导热气体制冷剂仅通过蒸发器（14）的制冷剂管道（42; 44）的一部分，用于对蒸发器（14）进行除霜。

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