公开(公告)号：US20100229575A1

公开(公告)日：2010-09-16

申请号：US12401136

申请日：2009-03-10

申请人： David N. Shaw

发明人： David N. Shaw

IPC分类号： F25D21/06 ,  F25D27/00 ,  F25D23/00 ,  F25B13/00

CPC分类号： F25B47/022 ,  F25B13/00 ,  F25B2313/02741 ,  F25B2400/01 ,  F25D21/02

摘要： A system and method for defrosting an air source heat pump are presented. A defrost conduit extends from the discharge from a system compressor to the outdoor coil. The defrost conduit includes a normally closed defrost valve. When the need for defrost exists, the defrost valve is opened, and warm refrigerant is delivered from the compressor discharge to the outdoor coil to effect defrost of the outdoor coil.

摘要翻译： 提出了一种用于除热空气源热泵的系统和方法。 除霜管道从系统压缩机的排放口延伸到室外线圈。 除霜管道包括常闭除霜阀。 当需要除霜时，除霜阀打开，暖式制冷剂从压缩机排放口输送到室外线圈，以实现室外线圈的除霜。

公开(公告)号：US20090304538A1

公开(公告)日：2009-12-10

申请号：US12134389

申请日：2008-06-06

申请人： David N. Shaw

发明人： David N. Shaw

IPC分类号： F04C18/16 ,  B23P15/00

CPC分类号： F04C18/165 ,  F04C2230/60 ,  F04C2240/70 ,  Y10T29/49242

摘要： A multi-rotor compressor and method of manufacturing is provided. The compressor includes a housing with a plurality of identical planet rotors. The planet rotors are equally spaced apart at a fixed distance from a centerline. A single sun rotor is provided that is disposed to cooperate with the plurality of identical planet rotors in the compression of gas. The number and radial spacing of the plurality of identical planet rotors about said single sun rotor may be arranged in different configurations to change an output capacity parameter for said compressor.

摘要翻译： 提供了一种多转子压缩机及其制造方法。 压缩机包括具有多个相同行星转子的壳体。 行星转子在距中心线一定距离处相等间隔开。 提供单个太阳转子，其设置成在压缩气体时与多个相同的行星转子配合。 围绕所述单个太阳转子的多个相同的行星转子的数量和径向间隔可以以不同的构造布置以改变用于所述压缩机的输出容量参数。

公开(公告)号：USRE39625E1

公开(公告)日：2007-05-15

申请号：US10641999

申请日：2003-08-15

申请人： David N. Shaw

发明人： David N. Shaw

IPC分类号： F25B13/00

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。

公开(公告)号：US06217304B1

公开(公告)日：2001-04-17

申请号：US09385645

申请日：1999-08-27

申请人： David N. Shaw

发明人： David N. Shaw

IPC分类号： F04C1816

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。

公开(公告)号：US06186758B1

公开(公告)日：2001-02-13

申请号：US09023271

申请日：1998-02-13

申请人： David N. Shaw

发明人： David N. Shaw

IPC分类号： F04C1800

CPC分类号： F04C29/0021

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 compressor includes a housing and a thrust balance configuration. The thrust balance configuration includes a thrust balance disc mounted to a male rotor shaft in a discharge housing of the compressor. The thrust balance disc is exposed to fluid from the compressor at high pressure. The outside diameter of the thrust balance is sized to provide sufficient area to react thrust loads produced by the first rotor. The thrust balance configuration serves to balance the thrust loads imparted on the male rotor and allows for full axial discharge porting.

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。 压缩机包括壳体和推力平衡构造。 推力平衡构造包括安装到压缩机的排放壳体中的阳转子轴上的推力平衡盘。 推力平衡盘在高压下暴露于来自压缩机的流体。 推力平衡的外径被设计成提供足够的面积来反应由第一转子产生的推力负载。 推力平衡构造用于平衡施加在阳转子上的推力载荷并允许完全轴向排出。

公开(公告)号：US6105378A

公开(公告)日：2000-08-22

申请号：US152548

申请日：1998-09-14

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 ,  F04B23/00 ,  F01C1/16

CPC分类号： F04C29/042 ,  F04C28/10 ,  F04C28/16 ,  F04C29/122 ,  F25B1/047 ,  F25B49/022 ,  F25B2339/0242 ,  F25B2400/075 ,  F25B2400/13 ,  F25B2400/23

摘要： A helical-screw rotary compressor having a twin rotor configuration or a multi-rotor (i.e., at least three) configuration with defined compressor induction and discharge ends has at least one unloader piston disposed at said compressor discharge end. The unloader pistons being opened and closed in fine discrete steps by microprocessor controlled stepping motors which drive linear actuators

摘要翻译： 具有双转子结构或具有限定的压缩机感应和排出端的多转子（即至少三个）构型的螺旋螺杆式旋转式压缩机具有至少一个卸载器活塞，其设置在所述压缩机排出端。 卸载器活塞通过微处理器控制的步进电机以微小的离散步骤打开和关闭，驱动线性致动器

公开(公告)号：US5839886A

公开(公告)日：1998-11-24

申请号：US644744

申请日：1996-05-10

申请人： David N. Shaw

发明人： David N. Shaw

IPC分类号： F04B39/02 ,  F04B41/06 ,  F25B1/10 ,  F25B13/00 ,  F25B31/00 ,  F04B3/00

CPC分类号： F25B31/002 ,  F04B39/0207 ,  F04B41/06 ,  F25B1/10 ,  F25B13/00 ,  F25B2400/075 ,  F25B2400/13

摘要： A primary compressor and a booster compressor connected in series is presented. A first conduit connects the low side of a heating/cooling or refrigeration system to the inlet of the booster compressor, the outlet of the booster compressor and the inlet of the primary compressor. A second conduit connects the outlet of the primary compressor to the high side of the system. The first conduit includes a check valve for closing or opening the connection between the first conduit and the outlet of the booster compressor. A sump conduit is positioned near the bottom of the primary and booster compressors to allow lubricant to flow from the booster compressor to the primary compressor.

摘要翻译： 介绍了串联连接的主压缩机和增压压缩机。 第一导管将加热/制冷或制冷系统的低侧连接到增压压缩机的入口，增压压缩机的出口和主压缩机的入口。 第二导管将主压缩机的出口连接到系统的高侧。 第一管道包括用于关闭或打开第一管道和增压压缩机出口之间的连接的止回阀。 一个储槽导管位于主和增压压缩机的底部附近，以允许润滑剂从增压压缩机流到主压缩机。

公开(公告)号：US5642992A

公开(公告)日：1997-07-01

申请号：US550253

申请日：1995-10-30

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。

公开(公告)号：US5170640A

公开(公告)日：1992-12-15

申请号：US664168

申请日：1991-03-04

申请人： Erric L. Heitmann ,  David N. Shaw ,  Arthur G. Mensing ,  Michael G. Field

发明人： Erric L. Heitmann ,  David N. Shaw ,  Arthur G. Mensing ,  Michael G. Field

IPC分类号： B01D17/04 ,  B01D17/00 ,  B01D17/02 ,  B01D17/025 ,  B01D17/028 ,  B01D17/12 ,  B01D35/02 ,  F04B39/16 ,  F25B43/02

CPC分类号： F25B43/02 ,  B01D17/0214 ,  F04B39/16 ,  F25B2400/02

摘要： Oil laden refrigerant is supplied tangentially into an oil separator for a primary removal of oil and then into a coalescer for a secondary removal of oil. Flow between the oil separator and coalescer is controlled by a valve so as to insure that a rapid build up of pressure takes place in the sump to insure adequate lubrication to the compressor.

公开(公告)号：US5065591A

公开(公告)日：1991-11-19

申请号：US646021

申请日：1991-01-28

申请人： David N. Shaw

发明人： David N. Shaw

IPC分类号： F25B5/02 ,  F25B49/02 ,  F25D29/00

CPC分类号： F25B49/022 ,  F25B5/02 ,  F25D29/00 ,  F25B2400/075 ,  F25B2400/0751 ,  F25B2400/22 ,  F25B2500/06 ,  F25D2700/12

摘要： A refrigeration system includes a rack or bank of compressors located in parallel and feeding a common condenser. Liquid refrigerant from the condenser is supplied to a plurality of evaporators located in parallel and feeding a common suction manifold. The suction manifold is connected to the compressors and contains a valve for selectively isolating one or more compressors and evaporators whereby the isolated compressor acts as a satellite compressor and the isolated evaporators are operated at a lower temperature than the other evaporators.

摘要翻译： 制冷系统包括平行定位并供给公共冷凝器的一个或多个压缩机组。 来自冷凝器的液体制冷剂被供给到并联设置的多个蒸发器，并且供给共同的抽吸歧管。 吸入歧管连接到压缩机并且包含用于选择性地隔离一个或多个压缩机和蒸发器的阀，由此隔离的压缩机用作卫星压缩机，并且隔离的蒸发器在比其他蒸发器低的温度下操作。