公开(公告)号：US20050126190A1

公开(公告)日：2005-06-16

申请号：US10732134

申请日：2003-12-10

Applicant: Alexander Lifson ,  Michael Taras ,  Thomas Dobmeier

Inventor： Alexander Lifson ,  Michael Taras ,  Thomas Dobmeier

IPC: F25B49/00 ,  G01K13/00 ,  F25B45/00

CPC classification number: F25B49/005 ,  F25B2400/13 ,  F25B2500/06 ,  F25B2500/19 ,  F25B2500/222 ,  F25B2700/1931 ,  F25B2700/197 ,  F25B2700/2117

Abstract: An actual superheat value in a refrigerant system is compared to an expected superheat level. If the actual superheat valve exceeds a certain predetermined value, this is an indication of refrigerant charge loss or a malfunctioning expansion device. In one example, the superheat valve is determined by comparing a difference between a saturated vapor temperature and an actual operating vapor temperature. The superheat determination can be made either at evaporator exit, economizer heat exchange exit or near the compressor discharge port.

Abstract translation: 将制冷剂系统中的实际过热值与预期的过热水平进行比较。 如果实际的过热阀超过一定的预定值，则说明制冷剂的充注损失或膨胀装置发生故障。 在一个实例中，通过比较饱和蒸汽温度和实际工作蒸汽温度之间的差来确定过热阀。 过热判定可以在蒸发器出口，节能器热交换出口或压缩机排出口附近进行。

公开(公告)号：US20050097908A1

公开(公告)日：2005-05-12

申请号：US10705319

申请日：2003-11-10

Applicant: Alexander Lifson

Inventor： Alexander Lifson

IPC: F04C28/24 ,  F04C29/04 ,  F04C29/12 ,  F25B1/04 ,  F25B49/02 ,  F25B41/00 ,  F25B41/04 ,  F25B49/00

CPC classification number: F04C29/122 ,  F04C28/24 ,  F04C29/042 ,  F25B1/04 ,  F25B49/022 ,  F25B2400/13 ,  F25B2600/0261 ,  F25B2600/2509 ,  F25B2600/2513 ,  F25B2700/21151

Abstract: A compressor has an economizer injection line communicating into the compressor compression chambers. An unloader valve selectively communicates the economizer injection line back to a point upstream of the evaporator. When the compressor is run in unloaded mode, partially compressed refrigerant is thus returned to a point upstream of the evaporator. In unloaded mode, this results in a higher refrigerant mass flow through the evaporator, as compared to prior art where the bypassed refrigerant was returned downstream of the evaporator. This increases system efficiency by more effectively returning oil which otherwise might be left in the evaporator back to the compressor. Also, the amount of refrigerant superheat entering the compressor in unloaded operation is reduced as compared to the prior art compressor systems, wherein the bypassed refrigerant is returned directly to the compressor suction line. Reduced refrigerant superheat increases system efficiency, improves motor performance and reduces compressor discharge temperature.

Abstract translation: 压缩机具有与压缩机压缩室连通的节能器注入管线。 卸载阀选择性地将节约器注入管路返回到蒸发器上游的一点。 当压缩机以卸载模式运行时，部分压缩的制冷剂因此返回到蒸发器上游的一个点。 与在现有技术中相比，在旁路制冷剂返回蒸发器的下游的情况下，在卸载模式中，这导致通过蒸发器的较高制冷剂质量流量。 这可以通过更有效地将返回的油返回到蒸发器中返回压缩机来提高系统效率。 此外，与现有技术的压缩机系统相比，在卸载操作中进入压缩机的制冷剂过热量减少，其中旁路制冷剂直接返回到压缩机吸入管线。 降低制冷剂过热度可提高系统效率，改善电机性能并降低压缩机排放温度。

公开(公告)号：US06736622B1

公开(公告)日：2004-05-18

申请号：US10447077

申请日：2003-05-28

Applicant: James William Bush ,  Alexander Lifson

Inventor： James William Bush ,  Alexander Lifson

IPC: F04C1804

CPC classification number: F04C18/0269

Abstract: A scroll compressor having a hybrid wrap is defined to have its wrap origin offset from a drive center of both the orbiting and non-orbiting scroll members. The offset is selected in a direction such that it eliminates extremes in the torque curve relative to shaft rotation. In this way, torque reversal is generally eliminated.

Abstract translation: 具有混合涡卷的涡旋式压缩机被限定为使其卷绕原点偏离轨道和非轨道运动的涡旋构件的驱动中心。 在一个方向上选择偏置，使得它消除了扭矩曲线相对于轴旋转的极限。 以这种方式，扭矩反转通常被消除。

公开(公告)号：US06658867B1

公开(公告)日：2003-12-09

申请号：US10195697

申请日：2002-07-12

Applicant: Michael F. Taras ,  Alexander Lifson ,  Thomas J. Dobmeier ,  Howard Fraser

Inventor： Michael F. Taras ,  Alexander Lifson ,  Thomas J. Dobmeier ,  Howard Fraser

IPC: F25B500

CPC classification number: F25B5/04 ,  F25B40/02 ,  F25B2400/06 ,  F25B2400/13

Abstract: In an air conditioning system including a compressor, a condenser, and an evaporator, a process includes the steps of feeding discharged refrigerant from the compressor to the condenser so as to provide a condensed refrigerant flow; splitting the condensed refrigerant flow into a main flow and an auxiliary flow wherein the auxiliary flow includes between about 8 and about 12% wt. of total mass flow rate of the condensed refrigerant flow; reducing temperature and pressure of the auxiliary flow so as to provide an economizer flow; passing the economizer flow and the main flow through a heat exchanger so as to provide a sub-cooled main flow and an economizer discharge flow; feeding the economizer discharge flow to the compressor; and feeding the sub-cooled main flow through the evaporator to the compressor. The system and process in accordance with the present invention advantageously allow for parameter optimization, circuit combination, and performance improvement through integration of economized and non-economized circuits.

Abstract translation: 在包括压缩机，冷凝器和蒸发器的空调系统中，包括以下步骤：将排出的制冷剂从压缩机输送到冷凝器，以提供冷凝的制冷剂流; 将冷凝的制冷剂流分解成主流和辅助流，其中辅助流包括约8至约12重量％ 冷凝制冷剂流量的总质量流量; 降低辅助流的温度和压力，从而提供节约器流量; 使节能器流和主流通过热交换器，以提供次冷主流和节能器排出流; 将节能器排出流送到压缩机; 并将次冷主流通过蒸发器供给压缩机。 根据本发明的系统和过程有利地通过集成经济和非经济的电路来允许参数优化，电路组合和性能改进。

公开(公告)号：US06517332B1

公开(公告)日：2003-02-11

申请号：US09032554

申请日：1998-02-27

Applicant: Alexander Lifson ,  James W. Bush

Inventor： Alexander Lifson ,  James W. Bush

IPC: F04C1804

CPC classification number: F04C27/005 ,  F04C18/0261 ,  F04C18/0292

Abstract: An improved control over the pressure vented or tapped to a back pressure chamber in a scroll compressor is achieved by maintaining a vent hole closed for the majority of the operational cycle of the scroll compressor. The hole is preferably selectively exposed to a discharge pressure for a small portion of the cycle, and to an intermediate pressure for a second small portion of the cycle. Other than those two small portions, the hole is preferably closed. The invention reduces pulsation in the back pressure chamber and also reduces pumping losses caused by fluid moving into and out of the back pressure chamber through the hole. In one embodiment, grooves are formed in the fixed scroll member to communicate a selected intermediate pressure and a discharge pressure to locations on the base plate of the fixed scroll member. A vent hole in the wrap of the orbiting scroll member cyclically moves over the two grooves. The vent hole is closed by the base plate of the fixed scroll member for the majority of its operational cycle. In a second embodiment, a pair of holes are formed through the base plate of one of the scroll members. The holes are covered by the wrap of the other scroll member for the majority of the operational cycle of the scroll compressor. Each hole is open for a small portion of the operational cycle to selectively tap an intermediate and discharge pressure to the back pressure chamber.

Abstract translation: 通过在涡旋压缩机的大部分操作循环中保持关闭通气孔来实现对涡旋压缩机中的背压室排出或抽吸的压力的改进控制。 该孔优选地选择性地暴露于循环的一小部分的排出压力，并且优选地暴露于循环的第二小部分的中间压力。 除了两个小部分之外，孔最好是封闭的。 本发明减少了背压室中的脉动，并且还降低了流体通过孔进入和离开背压室所引起的泵送损失。 在一个实施例中，在固定涡旋构件中形成槽，以将选定的中间压力和排出压力连通到固定涡旋构件的基板上的位置。 绕动涡旋件的涡卷中的通气孔循环地移动到两个凹槽上。 在其大部分操作周期中，通气孔由固定涡旋件的基板封闭。 在第二实施例中，通过一个涡旋件的基板形成一对孔。 在涡旋压缩机的大部分操作循环中，这些孔被另一个涡旋件的包裹物覆盖。 每个孔在操作循环的一小部分打开，以选择性地分离中间体并将压力排出到背压室。

公开(公告)号：US06354822B1

公开(公告)日：2002-03-12

申请号：US09571824

申请日：2000-05-16

Applicant: Alexander Lifson ,  James W. Bush

Inventor： Alexander Lifson ,  James W. Bush

IPC: F01C102

CPC classification number: F16C33/1075 ,  F01C21/02 ,  F04C18/0215 ,  F04C29/028 ,  F04C2240/50

Abstract: Oil retention recesses are formed in an outer periphery of the slider block of a scroll compressor. The recesses insure that a quantity of oil is captured and maintained during operation and after shutdown of the scroll compressor. If the scroll compressor is operated or started back up during a “starved” lubricant condition, the captured oil insures the scroll compressor can operate without damage for a period of time such that lubricant can be returned to the sealed compressor.

Abstract translation: 在涡旋式压缩机的滑动块的外周形成有油保持凹部。 凹槽确保在操作期间和在关闭涡旋压缩机之后捕获并维持一定量的油。 如果涡轮压缩机在“饥饿”的润滑条件下被操作或开始备份，则所捕获的油确保涡旋压缩机能够在不损坏的情况下运行一段时间，使得润滑剂可以返回到密封的压缩机。

公开(公告)号：US06290480B1

公开(公告)日：2001-09-18

申请号：US09467266

申请日：1999-12-20

Applicant: Alexander Lifson

Inventor： Alexander Lifson

IPC: F03C200

CPC classification number: F01C19/085 ,  F01C1/084 ,  F01C1/086 ,  F01C1/16

Abstract: A screw machine (10) has a rotor housing (12) defining overlapping bores (13, 15). Female rotor (14) is located in bore (13) and male rotor (16) is located in bore (15). Either or both of the facing surface (51) of the outlet casing (53) or the end faces (24, 26) of the female and male rotors, respectively, has a surface formed by a plurality of discrete cavities (70) separated by a network of interconnected wall members (80).

Abstract translation: 螺旋机器（10）具有限定重叠孔（13,15）的转子壳体（12）。 母转子（14）位于孔（13）中，阳转子（16）位于孔（15）中。 出口壳体（53）的相对表面（51）或阴和阳转子的端面（24,26）中的任一个或两者分别具有由多个分离的空腔（70）形成的表面，该表面由 互连的壁构件（80）的网络。

公开(公告)号：US6122924A

公开(公告)日：2000-09-26

申请号：US340257

申请日：1999-06-30

Applicant: Alexander Lifson ,  Boris Karpman

Inventor： Alexander Lifson ,  Boris Karpman

IPC: F25B1/00 ,  F04B39/02 ,  F04B49/24 ,  F25B31/00 ,  F25B41/04 ,  F25B43/02

CPC classification number: F25B31/004 ,  F04B49/24 ,  F25B41/04

Abstract: Hot gas bypass of compressed fluid is accomplished using standard components of an oil separation circuit. In this method, an electronically controlled valve, which is selectively opened and closed for returning oil accumulated in the oil separator is also selectively opened when a determination is made that hot gas bypass is desired. This electronically controlled valve is placed in the oil separator return line. When the valve is opened, hot gas is bypassed from compressor outlet into compressor inlet through the oil separator.

Abstract translation: 压缩流体的热气旁路通过油分离回路的标准部件完成。 在该方法中，当确定需要热气旁路时，选择性地打开和关闭用于返回积油在油分离器中的油的电子控制阀也被选择性地打开。 该电子控制阀被放置在分油器返回管路中。 当阀门打开时，热气体通过油分离器从压缩机出口旁路到压缩机入口。

公开(公告)号：US6058729A

公开(公告)日：2000-05-09

申请号：US108787

申请日：1998-07-02

Applicant: Alexander Lifson ,  Boris Karpman

Inventor： Alexander Lifson ,  Boris Karpman

IPC: F25D11/00 ,  F25B41/04 ,  F25D29/00

CPC classification number: F25B41/04 ,  F25D29/003 ,  F25B2400/13 ,  F25B2600/2509 ,  F25B41/043

Abstract: A unique method of operating a refrigeration system for rapidly pulling down a refrigerated container temperature includes the use and algorithm for operating several system components. The refrigeration system is preferably provided with a suction modulation valve, a compressor unloader and an economizer circuit. By utilizing each of these components in combination with one another, and at various stages during the pull down capacity and energy efficiency of the refrigeration system are optimized, while maintaining the system operation within preset limits.

Abstract translation: 操作制冷系统用于快速拉下冷藏容器温度的独特方法包括用于操作若干系统部件的用途和算法。 制冷系统优选设置有吸入调节阀，压缩机卸载器和节能器回路。 通过将这些部件中的每一个彼此组合，并且在制冷系统的下拉能力和能量效率的各个阶段被优化，同时将系统操作保持在预设限制内。

公开(公告)号：US5857844A

公开(公告)日：1999-01-12

申请号：US762414

申请日：1996-12-09

Applicant: Alexander Lifson ,  James W. Bush

Inventor： Alexander Lifson ,  James W. Bush

IPC: F04C18/02 ,  F25B1/04 ,  F04C18/04

CPC classification number: F04C18/0276 ,  F04C18/0269

Abstract: An improved scroll compressor has an orbiting scroll wrap that is designed to always be at most equal in height to the fixed scroll wrap. The orbiting scroll wrap is preferably designed shorter than the fixed scroll wrap by a distance equal to the manufacturing tolerances on the height of the two scroll wraps added together. In this way, the present invention insures that in no acceptable parts will the height of the orbiting scroll wrap exceed the height of the fixed scroll wrap. In a situation where the height of the orbiting scroll wrap does exceed the height of the fixed scroll wrap, there is a tendency to limit the stable operational envelope of the system. By insuring that the orbiting scroll wrap height is always at most equal to the fixed scroll wrap height, the present invention avoids this limitation on the operational envelope.

Abstract translation: 一种改进的涡旋式压缩机具有绕涡卷涡卷，其被设计成与固定的涡旋涡卷总是高度相等。 优选地，绕涡旋涡卷被设计成比固定涡卷卷绕的距离等于加在一起的两个涡旋卷筒的高度上的制造公差。 以这种方式，本发明确保在不可接受的部分中，绕动涡卷的高度超过固定涡卷的高度。 在绕动涡卷的高度超过固定涡旋盘的高度的情况下，存在限制系统的稳定运行范围的趋势。 通过确保绕动涡卷的高度总是等于固定的卷绕高度，本发明避免了对操作范围的这种限制。