公开(公告)号：US07543456B2

公开(公告)日：2009-06-09

申请号：US11477902

申请日：2006-06-30

Applicant: Sunil Kumar Sinha ,  Asoke Deysarkar

Inventor： Sunil Kumar Sinha ,  Asoke Deysarkar

IPC: F25B27/00

CPC classification number: F28F9/26 ,  F24H4/04 ,  F24H2240/01 ,  F25B39/04 ,  F25B2339/047 ,  F28D7/024 ,  F28F1/003 ,  F28F1/02 ,  Y02B30/52

Abstract: A heat pump liquid heater for heating a liquid comprising: a heat pump; a liquid tank in heat communication with the heat pump, wherein the liquid tank comprises the liquid; and at least one metal condenser tube immersed into the liquid, wherein the metal condenser tube forms at least one coil. The metal condenser tube has a flattened double-tube configuration and a cross-section defined by concentric ovals such that at least a portion of the concentric ovals is in contact with one another thereby minimizing space between the flattened double-tubes. The heat pump comprises a tube-in-tube heat exchanger and a compressor, wherein the tube-in-tube heat exchanger recovers heat from refrigerant returning from the liquid tank and transfers the recovered heat to refrigerant going to the compressor thereby superheating the refrigerant.

Abstract translation: 一种用于加热液体的热泵液体加热器，包括：热泵; 与所述热泵热连通的液体罐，其中所述液体罐包括所述液体; 和至少一个金属冷凝管浸入液体中，其中金属冷凝管形成至少一个线圈。 金属冷凝器管具有扁平的双管构造和由同心椭圆形限定的横截面，使得至少一部分同心椭圆形彼此接触，从而最小化扁平双管之间的空间。 热泵包括管中管热交换器和压缩机，其中管内管热交换器从从液罐返回的制冷剂回收热量，并将回收的热量传递到进入压缩机的制冷剂，从而过热制冷剂。

公开(公告)号：US20080159869A1

公开(公告)日：2008-07-03

申请号：US11617911

申请日：2006-12-29

Applicant: William Carl Ruehr ,  Michael Harvey Schneider ,  Sunil Kumar Sinha ,  Jay L. Cornell

Inventor： William Carl Ruehr ,  Michael Harvey Schneider ,  Sunil Kumar Sinha ,  Jay L. Cornell

IPC: F01D5/14

CPC classification number: F01D5/20 ,  F01D5/147 ,  F05D2250/314 ,  Y10T29/49318 ,  Y10T29/49321 ,  Y10T29/49325 ,  Y10T29/49336

Abstract: In one aspect, a method for assembling a rotor assembly is provided. The method comprises providing a rotor blade including a first sidewall, a second sidewall, where the first and second sidewalls are connected at a leading edge and a trailing edge and extend in span from a root portion to a tip portion, removing blade material from the tip portion to form a tip portion rake angle that enables the tip portion to extend obliquely between the first and second sidewalls, and coupling the rotor blade to a shaft such that during tip rubs the tip portion rake angle facilitates reducing radial loading induced to the blade during tip rubs.

Abstract translation: 一方面，提供了组装转子组件的方法。 该方法包括提供包括第一侧壁和第二侧壁的转子叶片，其中第一和第二侧壁在前缘和后缘处连接，并且从根部到顶端部分的跨度延伸， 尖端部分以形成尖端部前角，其能够使尖端部分在第一和第二侧壁之间倾斜地延伸，并且将转子叶片联接到轴上，使得在末端摩擦期间尖端部分前角有助于减小引起叶片的径向负载 在尖端磨擦。