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41. 发明授权

US06276148B1 Boosted air source heat pump 有权
标题翻译：增压空气源热泵
公开(公告)号：US06276148B1
公开(公告)日：2001-08-21
申请号：US09505584
申请日：2000-02-16
申请人： David N. Shaw
发明人： David N. Shaw
IPC分类号： F25B1300
CPC分类号： F25B31/002 , F04B9/04 , F04B39/0094 , F25B1/10 , F25B13/00 , F25B49/02 , F25B2400/13
摘要： A boosted source heat pump (BSHP) is presented having a primary compressor, a booster compressor, an economizer, and a lubricant management system. At least the primary compressor is a twin-single compressor. The lubricant management system includes traps to prevent migration of lubricant to a non-operating compressor, and aspiration tubes from the sump to the low pressure intake zone to each compressor.
摘要翻译：提供的增压源热泵（BSHP）具有主压缩机，增压压缩机，节能器和润滑剂管理系统。至少主压缩机是双机压缩机。润滑剂管理系统包括用于防止润滑剂向非操作压缩机迁移的阱，以及从贮槽到低压进入区到每个压缩机的抽吸管。

42. 发明授权

US06003324A Multi-rotor helical screw compressor with unloading 失效
标题翻译：多转螺旋螺杆压缩机卸货
公开(公告)号：US06003324A
公开(公告)日：1999-12-21
申请号：US891453
申请日：1997-07-11
申请人： David N. Shaw
发明人： David N. Shaw
IPC分类号： F04C18/16 , F04C28/10 , F25B1/047 , F25B49/02 , F25D17/02 , F04B49/00
CPC分类号： F04C28/10 , F04C18/165 , F25B1/047 , F25B49/022
摘要： A compressor with rotor unloading is presented. The compressor having a housing for supporting a multi-rotor configuration (e.g., a male rotor and two axially aligned female rotors) and a drive motor. A discharge disk is mounted at the discharge end of the male rotor. The length of the male rotor is slightly longer than the length of the female rotors, thereby providing axial clearance between the female rotors and the discharge disk. Lubrication is leaked (or flashed) through these clearances to upper bearings. The motor is supported in the compressor housing. Evaporated refrigerant from the evaporator is inducted into the compressor. The vapor phase refrigerant is compressed by the compressor. The compressed vapor phase refrigerant is then presented to a condenser, condensing the refrigerant to the liquid phase. Thereafter, liquid phase refrigerant is delivered through an expansion valve to the evaporator. The motor, bearings and the compression process itself are cooled and lubricated by the oil in the vapor refrigerant. The unloading is accomplished by allowing selective axial movement of the female rotors of the compressor to effectively reduce/prevent compression at that rotor. The axial movement is actuated by a stepper motor. The expansion valve is actuated and the female rotors are unloaded (i.e., the stepper motors are driven) in response to microprocessor control. Accordingly, the above describes a complete cycle which can be capacity varied.
摘要翻译：提出了一种具有转子卸载的压缩机。压缩机具有用于支撑多转子构造的壳体（例如，阳转子和两个轴向对准的阴转子）和驱动电动机。放电盘安装在阳转子的排放端。阳转子的长度比阴转子的长度稍长，从而在阴转子和排出盘之间提供轴向间隙。润滑通过这些间隙泄漏（或闪烁）到上轴承。马达支撑在压缩机壳体中。来自蒸发器的蒸发制冷剂被引入压缩机。气相制冷剂被压缩机压缩。然后将压缩的气相制冷剂提供到冷凝器，将制冷剂冷凝至液相。此后，液相制冷剂通过膨胀阀输送到蒸发器。电机，轴承和压缩过程本身由蒸汽制冷剂中的油冷却和润滑。卸载通过允许压缩机的母转子的选择性轴向运动来实现，以有效地减少/防止在该转子处的压缩。轴向运动由步进电机驱动。响应于微处理器控制，膨胀阀被致动并且阴转子被卸载（即，驱动步进电机）。因此，上述描述了可以容量变化的完整循环。

43. 发明授权

US5807091A Multi-rotor helical-screw compressor 失效
标题翻译：多转子螺旋压缩机
公开(公告)号：US5807091A
公开(公告)日：1998-09-15
申请号：US808470
申请日：1997-03-03
申请人： David N. Shaw
发明人： David N. Shaw
IPC分类号： F04C18/08 , F04C18/16
CPC分类号： F04C18/084 , F04C18/165
摘要： A compressor in accordance with the present invention includes a male rotor which is axially aligned with and in communication with two female rotors. The male rotor is driven by a motor, in other words the male rotor is the drive rotor. The male rotor has a plurality of lobes which intermesh with a plurality of flutes on each of the female rotors. The male rotor comprises an inner cylindrical metal shaft with an outer composite material ring mounted thereon. The ring includes the lobes of the male rotor integrally depending therefrom. The lobes of the male rotor being comprised of a composite material allows positioning of the female rotors at a small clearance from the male drive rotor. This clearance is small enough that the liquid refrigerant itself provides sufficient sealing, cooling and lubrication. The positioning of the female rotors on opposing sides of the male rotor balances the radial loading on the male rotor thereby minimizing radial bearing loads. The interface velocity between the male and female rotors during operation is low, whereby damage suffered as a result of lubrication loss is reduced. The compressor includes a housing having an inlet housing portion, a main housing portion and a discharge housing portion. An induction side plate and a discharge side plate are mounted on the male rotor. The outside diameter of the induction plate is equal to the root diameter of the male rotor. The outside diameter of the discharge plate is equal to the crest diameter of the male rotor. These plates serve two purposes, to secure the male rotor components and to equalize suction pressure at both ends of the male rotor, thereby virtually eliminating the thrust loads. Discharge porting is defined in the discharge housing portion wherein trap pocket relief is provided.
摘要翻译：根据本发明的压缩机包括与两个母转子轴向对准并与之连通的公转子。阳转子由电动机驱动，换句话说，公转子是驱动转子。阳转子具有多个凸角，其与每个阴转子上的多个凹槽相互啮合。阳转子包括内圆柱形金属轴，其上安装有外复合材料环。环包括与其一体地悬挂的阳转子的叶。阳转子的凸起由复合材料构成，允许阴转子与阳驱动转子间隔很小的位置。该间隙足够小，使得液体制冷剂本身提供足够的密封，冷却和润滑。阴转子在阳转子的相对侧上的定位平衡了阳转子上的径向负载，从而使径向轴承负载最小化。在运行中，公转轮与转子之间的界面速度较低，因此减少了由于润滑损失而造成的损坏。压缩机包括具有入口壳体部分，主壳体部分和排出壳体部分的壳体。感应侧板和排出侧板安装在阳转子上。感应板的外径等于公转子的根直径。排出板的外径等于公转子的峰值直径。这些板具有两个目的，用于固定阳转子部件并使雄转子的两端的吸入压力相等，从而实际上消除了推力负载。放电端口被限定在放电容纳部分中，其中提供陷阱袋释放。

44. 发明授权

US5806324A Variable capacity vapor compression cooling system 失效
标题翻译：可变容量蒸汽压缩冷却系统
公开(公告)号：US5806324A
公开(公告)日：1998-09-15
申请号：US550254
申请日：1995-10-30
申请人： David N. Shaw
发明人： David N. Shaw
IPC分类号： F04C28/10 , F04C28/16 , F04C29/04 , F04C29/12 , F25B1/047 , F25B49/02 , F25D17/02 , F25B41/00
CPC分类号： F04C28/10 , F04C28/16 , F04C29/042 , F04C29/122 , F25B1/047 , F25B49/022 , F25B2339/0242 , F25B2400/075 , F25B2400/13 , F25B2400/23
摘要： A variable capacity vapor compression cooling system is presented. In the system of the present invention, air conditioning requirements are entered into a microprocessor which controls the system. Liquid phase refrigerant entering an evaporator is regulated by a microprocessor controlled electronic expansion valve. Evaporated refrigerant is delivered to a pair of compressors from the evaporator. The motors for the compressors are controlled by a controller. Each of the compressors has a feed back loop attached thereto for feeding back some of the inducted vapor phase refrigerant. The amount of vapor fed back in each loop is regulated by a corresponding microprocessor controlled multi-purpose valve. The compressed vapor phase refrigerant is then presented to a condenser which condenses the refrigerant to the liquid phase which is used for cooling, as is well known in the art. Thereafter, liquid phase refrigerant is presented to an economizer where vapor phase refrigerant (i.e., flash gas) is drawn off. The amount of vapor phase refrigerant drawn off is regulated by a microprocessor controlled electronic expansion valve. This vapor phase refrigerant is presented to the multi-purpose valves where it is directed to the respective compressors. The liquid phase refrigerant is delivered to the evaporator with the flow thereof being regulated by a microprocessor controlled electronic expansion valve. Accordingly, the above describes a complete cycle which can be capacity varied without unloading of the compressors, as described more completely below. It is an important feature of the system of the present invention that capacity is varied without unloading the compressors.
摘要翻译：提出了一种可变容量蒸气压缩冷却系统。在本发明的系统中，空调要求被输入到控制系统的微处理器中。进入蒸发器的液相制冷剂由微处理器控制的电子膨胀阀调节。蒸发的制冷剂从蒸发器输送到一对压缩机。压缩机的电机由控制器控制。每个压缩机具有附接到其上的反馈回路，用于反馈一些引入的气相制冷剂。在每个回路中反馈的蒸汽量由相应的微处理器控制的多用途阀调节。然后，压缩的气相制冷剂被提供到冷凝器，冷凝器将制冷剂冷凝成用于冷却的液相，如本领域中公知的。此后，液相制冷剂被提供给节能器，其中抽出气相制冷剂（即闪燃气体）。抽出的气相制冷剂的量由微处理器控制的电子膨胀阀来调节。该气相制冷剂被提供给多用途阀，其中它被引导到相应的压缩机。液相制冷剂被输送到蒸发器，其流量由微处理器控制的电子膨胀阀调节。因此，如上文更全面地描述的，上述描述了可以容量变化而不卸载压缩机的完整循环。本发明的系统的一个重要特征是在不卸载压缩机的情况下改变容量。

45. 发明授权

US5062274A Unloading system for two compressors 失效
标题翻译：卸载两台压缩机系统
公开(公告)号：US5062274A
公开(公告)日：1991-11-05
申请号：US546211
申请日：1990-06-28
申请人： David N. Shaw
发明人： David N. Shaw
IPC分类号： F25B1/00 , F25B1/10 , F25B5/02 , F25B40/02 , F25B49/02
CPC分类号： F25B5/02 , F25B1/10 , F25B40/02 , F25B49/022 , F25B2400/13 , F25B2600/0251 , F25B2600/0261
摘要： An economizer is connected to a fluid line connecting the booster compressor and high stage compressor of a refrigeration system at a point downstream of the bypass for unloading the booster compressor. The economizer flow controls the discharge temperature of the second stage and, in addition, coacts with the bypassing of the booster compressor such that all of the flow supplied to the high stage is at system suction pressure when the bypass is fully open. When the booster compressor is fully unloaded and the unloading valve is fully open, the booster compressor is shut off and bypass flow for unloading reverses direction to permit flow from the condenser to the second stage past the shut off booster compressor.
摘要翻译：节能器连接到在旁路下游的点连接增压压缩机和制冷系统的高级压缩机的流体管路，用于卸载增压压缩机。节能器流量控制第二级的排放温度，并且另外与增压压缩机的旁路共同作用，使得当旁路完全打开时，供应到高压段的所有流量都处于系统吸入压力。当增压压缩机完全卸载并且卸载阀完全打开时，增压压缩机被切断并且用于卸载的旁路流反转方向以允许通过关闭增压压缩机从冷凝器流到第二级。

46. 发明授权

US4947655A Refrigeration system 失效
标题翻译：制冷系统
公开(公告)号：US4947655A
公开(公告)日：1990-08-14
申请号：US265402
申请日：1988-10-31
申请人： David N. Shaw
发明人： David N. Shaw
IPC分类号： F25B1/10 , F25B5/02 , F25B41/04
CPC分类号： F25B1/10 , F25B41/04 , F25B5/02 , F25B2400/072 , F25B2400/075 , F25B2400/13 , F25B2400/16 , F25B2400/22 , F25B2600/021 , F25B41/043 , Y02B30/741
摘要： There is disclosed a refrigeration system employing multi-stage compressors, several unique modes of operation thereof, a sub-cooler/economizer for sub-cooling the condensed refrigerant prior to vaporization in the evaporator, as well as an improved expansion valve arrangement for controlling second stage discharge temperature, another valve arrangement for controlling economizer liquid discharge temperature, an interstage intercooler for use in a hot water system, a satellite compressor arrangement for ultra-low temperature applications, and an improved liquid-suction heat exchange arrangement.
摘要翻译：公开了使用多级压缩机的制冷系统，其几种独特的操作模式，用于在蒸发器中蒸发之前对冷凝的制冷剂进行副冷却的副冷却器/节能器，以及用于控制第二级的改进的膨胀阀装置阶段排放温度，用于控制节能器液体排出温度的另一阀装置，用于热水系统的级间中间冷却器，用于超低温应用的卫星压缩机装置以及改进的吸液热交换装置。

47. 发明授权

US4748831A Refrigeration plant and rotary positive displacement machine 失效
标题翻译：制冷厂和旋转正排量机
公开(公告)号：US4748831A
公开(公告)日：1988-06-07
申请号：US12125
申请日：1986-12-29
申请人： David N. Shaw
发明人： David N. Shaw
IPC分类号： F04C18/16 , F04C28/00 , F04C28/16 , F04C29/04 , F25B1/00 , F25B1/04 , F25B1/047 , F25B31/00
CPC分类号： F04C28/16 , F25B1/047 , F25B2400/05 , F25B2400/13 , F25B2400/23
摘要： A refrigeration type plant comprises a rotary, positive displacement machine which as at least one rotor provided with spiral lobes and intervening grooves. The plant further comprises a condenser communicating with an outlet port (60) of the compressor through a high pressure channel (14), an evaporator communicating with an inlet port (58) of the compressor through a low pressure channel (18), a vessel for an intermediate pressure communicating with an intermediate port (38) of the compressor through an intermediate pressure channel (36), the intermediate port (38) being spaced from the inlet port (58) as well as from the outlet port (60), and a pressure reducer for decreasing the high pressure in the condenser to the intermediate pressure in the vessel and to the low pressure in the evaporator, respectively. A selectively adjustable valve (40) is provided for forming a communication between the intermediate channel (36) and the low pressure channel (18).
摘要翻译： PCT No.PCT / SE86 / 00202 Sec。一九八六年十二月二十九日 102（e）日期1986年12月29日PCT提交1986年5月2日PCT公布。出版物WO86 / 06798 日本1986年11月20日。一种制冷型设备包括旋转式容积式电动机，其作为设置有螺旋形叶片和中间槽的至少一个转子。该设备还包括通过高压通道（14）与压缩机的出口（60）连通的冷凝器，通过低压通道（18）与压缩机的入口（58）连通的蒸发器，容器对于通过中间压力通道（36）与压缩机的中间端口（38）连通的中间压力，中间端口（38）与入口端口（58）以及出口端口（60）间隔开，以及用于将冷凝器中的高压降低到容器中的中间压力和蒸发器中的低压的减压器。提供了一种选择性调节阀（40），用于形成中间通道（36）和低压通道（18）之间的连通。

48. 发明授权

US4667646A Expansion compression system for efficient power output regulation of internal combustion engines 失效
标题翻译：用于内燃机高效功率输出调节的膨胀压缩系统
公开(公告)号：US4667646A
公开(公告)日：1987-05-26
申请号：US815497
申请日：1986-01-02
申请人： David N. Shaw
发明人： David N. Shaw
IPC分类号： F02B41/00 , F02D9/02 , F02B33/00
CPC分类号： F02B41/00 , F02D9/02 , F02D2009/0283
摘要： A system for efficient power output regulation of internal combustion engines employs an engine intake air expansion/compression device coupled to the engine and driven thereby. The device has a variable volume chamber and a control for admitting and abruptly trapping desired volumes of atmospheric air within the chamber. The trapped volume of air is expanded to maximum value and then reduced after expansion until the engine intake displacement volume level is reached. At that point, the device exposes the trapped volume of air to the engine intake manifold. As the device is coupled to the engine, its maximum chamber volume per engine revolution remains essentially a fixed ratio of engine intake displacement per engine revolution.
摘要翻译：用于内燃机高效功率输出调节的系统采用与发动机相连的发动机进气扩张/压缩装置，由此驱动。该装置具有可变容积室和用于允许和突然捕获室内的所需体积的大气的控制器。空气的收集体积扩大到最大值，然后膨胀后减小，直到达到发动机进气排量体积水平。此时，设备将被捕获的空气体积暴露给发动机进气歧管。当该装置联接到发动机时，其每发动机转速的最大室体积基本上保持每发动机转数的发动机进气位移的固定比率。

49. 发明授权

US4583373A Constant evaporator pressure slide valve modulator for screw compressor refrigeration system 失效
标题翻译：螺杆压缩机制冷系统恒定蒸发器压力滑阀调节器
公开(公告)号：US4583373A
公开(公告)日：1986-04-22
申请号：US654911
申请日：1984-09-27
申请人： David N. Shaw
发明人： David N. Shaw
IPC分类号： F25B1/00 , F04C28/12 , F25B1/047 , F25B27/00 , F25B49/02 , G05D23/19 , F25B41/00
CPC分类号： F04C28/125 , F04C28/12 , F25B1/047 , F25B27/00 , F25B49/022 , G05D23/1912 , F25B2600/026
摘要： A space conditioning closed loop refrigeration system, particularly a vehicle air conditioning system utilizing a positive displacement compressor having a slide valve for varying the capacity and shiftable between full load and full unload positions and vice versa and driven therebetween by a linear fluid motor having a movable member coupled to the slide valve and forming a first chamber which is normally dumped via a slide valve modulator to compressor suction pressure and a second chamber open to compressor discharge pressure. A restricted passage between chambers tends to cause the first chamber to reach compressor discharge pressure absent that chamber dumping to suction. The slide valve modulator selectively activates the venting of the first chamber to compressor suction pressure in response to fall of suction pressure below a predetermined value to prevent a serious reduction in evaporator temperature caused by either a reduction in load on the evaporator, an increase in speed of the compressor, or both. A temperature unloader in the form of a normally closed valve is connected within a bypass passage by passing the slide valve modulator to insure dumping of the first chamber to suction in response to a predetermined drop in temperature of the space to be conditioned, irrespective of the level of compressor suction pressure.
摘要翻译：一种空调闭环制冷系统，特别是利用具有滑阀的容积式压缩机的车辆空调系统，所述容积式压缩机具有用于改变容量并在满载和全卸载位置之间移动的反作用力，反之亦然，并通过具有可移动联接到滑阀并构成通常经由滑阀调节器倾倒到压缩机吸入压力的第一室，以及对压缩机排气压力敞开的第二室。室之间的限制通道倾向于导致第一室达到压缩机排放压力，而不是将室倾倒到抽吸。滑阀调节器响应于吸入压力下降到预定值来选择性地启动第一室的排气到压缩机吸入压力，以防止蒸发器温度的严重降低，这是由蒸发器的负载减小引起的，速度的增加的压缩机，或两者。常闭阀的形式的温度卸载器通过使滑阀调节器通过，以确保第一室的倾倒响应待调节空间的预定的下降而被吸入旁通通道内，而与压缩机吸入压力水平。

50. 发明授权

US4342199A Screw compressor slide valve engine RPM tracking system 失效
标题翻译：螺杆压缩机滑阀引擎RPM跟踪系统
公开(公告)号：US4342199A
公开(公告)日：1982-08-03
申请号：US193696
申请日：1980-10-03
申请人： David N. Shaw , Joseph A. L. N. Gagnon
发明人： David N. Shaw , Joseph A. L. N. Gagnon
IPC分类号： B60H1/32 , B60K25/02 , F01C20/00 , F04C28/06 , F04C28/12 , F25B1/047 , F25B49/02 , B60H3/04 , F25B41/00
CPC分类号： F04C28/125 , B60H1/3204 , F04C28/06 , F25B1/047 , F25B49/022
摘要： A vehicle engine driven helical screw compressor for a gas refrigeration system includes a slide valve actuator for shifting the compressor slide valve to load and unload the compressor. In addition to a first solenoid operated control valve selectively connecting the slide valve actuator to compressor high side pressure to effect loading of the compressor and a second solenoid operated control for connecting the slide valve actuator to the compressor low side pressure to effect unloading, a tracking valve responsive to engine acceleration and deceleration connects the slide valve actuator to the low side pressure during engine acceleration for immediate unloading of the compressor and connects the slide valve actuator to the high side pressure during engine deceleration to immediately load the compressor.
摘要翻译：一种用于气体制冷系统的车辆发动机驱动的螺旋式螺杆式压缩机，包括用于移动压缩机滑阀以加载和卸载压缩机的滑阀致动器。除了第一电磁操作控制阀选择性地将滑阀致动器连接到压缩机的高侧压力以实现压缩机的负载以及用于将滑阀致动器连接到压缩机的低侧压力以实现卸载的第二电磁控制控制之外，跟踪响应于发动机加速和减速的阀在发动机加速期间将滑阀致动器连接到低压，以立即卸载压缩机，并且在发动机减速期间将滑阀致动器连接到高压侧，以立即装载压缩机。

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