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1. 发明授权

US5884494A Oil flow protection scheme 失效
标题翻译：油流保护方案
公开(公告)号：US5884494A
公开(公告)日：1999-03-23
申请号：US924229
申请日：1997-09-05
申请人： Ronald W. Okoren , Sean A. Smith , Daniel C. Leaver , John R. Moilanen , Paul D. Ulland , Michael D. Carey
发明人： Ronald W. Okoren , Sean A. Smith , Daniel C. Leaver , John R. Moilanen , Paul D. Ulland , Michael D. Carey
IPC分类号： F04C28/28 , F04C29/02 , F25B1/047 , F25B31/00 , F25B43/02
CPC分类号： F04C28/28 , F04C29/02 , F25B31/002 , F04C2270/19 , F04C2270/20 , F04C2270/48 , F25B1/047
摘要： A protection system for a compressor. The system comprises a compressor having a discharge and including at least one rotor and at least one bearing; a lubrication system including at least one oil recovery device for recovering oil from the compressor, and further including bearing conduit connecting the oil recovery device to the compressor bearing and including rotor conduit for connecting the oil recovery device to the compressor rotors; and an oil protection system. The oil protection system includes a compressor discharge temperature sensor located in the discharge for sensing the temperature of a lubricant/refrigerant mixture discharged by the compressor, a differential pressure sensor located in the bearing conduit for measuring a differential pressure in the bearing conduit, and an oil detector located in the rotor conduit for detecting the presence of oil in the rotor conduit.
摘要翻译：一种压缩机保护系统。该系统包括具有放电并包括至少一个转子和至少一个轴承的压缩机; 润滑系统，包括至少一个用于从压缩机回收油的油回收装置，还包括将油回收装置连接到压缩机轴承并包括用于将油回收装置连接到压缩机转子的转子管道的轴承导管; 和油保护系统。油保护系统包括位于排出口中的压缩机排放温度传感器，用于感测由压缩机排出的润滑剂/制冷剂混合物的温度;位于轴承管道中的差压传感器，用于测量轴承导管中的压差;以及油检测器位于转子管道中，用于检测转子管道中油的存在。

2. 发明授权

US5950443A Compressor minimum capacity control 失效
标题翻译：压缩机最小容量控制
公开(公告)号：US5950443A
公开(公告)日：1999-09-14
申请号：US910957
申请日：1997-08-08
申请人： Jonathan M. Meyer , Ronald W. Okoren , Lee L. Sibik , Daniel C. Leaver , Sean A. Smith
发明人： Jonathan M. Meyer , Ronald W. Okoren , Lee L. Sibik , Daniel C. Leaver , Sean A. Smith
IPC分类号： F04C28/00 , F04C28/28 , F25B1/047 , F25B49/02 , F25B1/00
CPC分类号： F04C28/00 , F04C28/28 , F25B49/022 , F04C2270/19 , F25B1/047
摘要： A method of controlling compressor minimum capacity. The method comprises the steps of: measuring a first condition; comparing the first condition to a first setpoint to determine a first conditioned error; modulating compressor capacity relative to the first condition error; measuring a second condition; comparing the second condition to a second setpoint to determine a second condition error; and modulating compressor capacity relative to the second condition error if the magnitude of the second conditioned error is greater than the magnitude of the first conditioned error.
摘要翻译：一种控制压缩机最小容量的方法。该方法包括以下步骤：测量第一条件; 将所述第一条件与第一设定点进行比较以确定第一调节误差; 相对于第一条件误差调节压缩机容量; 测量第二个条件; 将所述第二条件与第二设定值进行比较以确定第二条件误差; 以及如果所述第二调节误差的大小大于所述第一调节误差的幅度，则相对于所述第二条件误差调制压缩机容量。

3. 发明授权

US6116046A Refrigeration chiller with assured start-up lubricant supply 有权
标题翻译：制冷冷冻机，确保启动润滑油供应
公开(公告)号：US6116046A
公开(公告)日：2000-09-12
申请号：US263389
申请日：1999-03-05
申请人： Daniel C. Leaver , Sean A. Smith
发明人： Daniel C. Leaver , Sean A. Smith
IPC分类号： F04C28/28 , F04C29/00 , F04C29/02 , F25B1/047 , F25B31/00 , F25B43/02
CPC分类号： F04C28/28 , F04C29/0007 , F04C29/02 , F25B1/047 , F25B31/002
摘要： An assured supply of lubricant to the compressor in a refrigeration chiller is provided by a reservoir that is connected in parallel with the main line by which lubricant is supplied to the compressor. The reservoir is connected to the main lubricant supply line in a manner such that if the lubricant supply line is blown dry, as can occur as a result of an unusual or abnormal chiller shutdown condition, a critical portion of the supply line will be refilled by the reservoir relatively very quickly which assures the immediate availability of lubricant to the compressor from that portion of the lubricant supply line when it next starts up.
摘要翻译：通过与主管并联连接的储存器，为冷冻机中的压缩机提供有保证的润滑剂供给润滑剂供给压缩机。储存器以这样的方式连接到主润滑剂供应管线，使得如果润滑剂供应管线被吹干，则可能由于异常或异常的冷却器关闭条件而发生，供应管线的关键部分将被重新填充油箱相对非常快，确保当下一次启动时从润滑剂供应管路的该部分立即获得润滑剂到压缩机。

4. 发明申请

US20110005251A1 Compressor discharge valve providing freeze and charge migration protection 有权
标题翻译：压缩机排放阀提供冻结和电荷迁移保护
公开(公告)号：US20110005251A1
公开(公告)日：2011-01-13
申请号：US12459852
申请日：2009-07-08
申请人： Dennis M. Beekman , Jay H. Johnson , Rodney L. Lakowske , Sean A. Smith , John R. Moilanen
发明人： Dennis M. Beekman , Jay H. Johnson , Rodney L. Lakowske , Sean A. Smith , John R. Moilanen
IPC分类号： F25B1/00 , F16K31/44
CPC分类号： F16K31/1223 , F25B1/047 , F25B41/04 , F25B2600/0261
摘要： A refrigerant system includes a compressor with a discharge valve that temporarily restricts the compressor's outflow at startup so that the discharge pressure can quickly rise to force lubricant back to the compressor. The discharge valve also helps prevent an axial face of a rotor of a screw compressor from rubbing against a bearing housing axial face of the compressor's housing. When the system turns off under certain low ambient air temperature conditions, the valve closes to help prevent the system's evaporator from freezing up. The discharge valve includes a novel arrangement of a piston, a valve stem extending from the piston, and a valve plug pivotally attached to the valve stem. The pivotal connection ensures a positive seal between the valve plug and a valve seat. A somewhat restricted fluid passageway between the valve's discharge chamber and piston chamber helps prevent the valve from chattering as the valve opens.
摘要翻译：制冷剂系统包括具有排气阀的压缩机，其在启动时临时限制压缩机的流出，使得排出压力可以快速上升以迫使润滑剂返回到压缩机。排放阀还有助于防止螺杆压缩机的转子的轴向面摩擦压缩机壳体的轴承座轴向面。当系统在某些低环境空气温度条件下关闭时，阀关闭，以防止系统的蒸发器冻结。排放阀包括活塞的新颖结构，从活塞延伸的阀杆和可枢转地连接到阀杆的阀塞。枢轴连接确保阀塞和阀座之间的正密封。在阀的排出室和活塞室之间有一定程度的流体通道有助于防止阀在阀打开时颤动。

5. 发明授权

US08234877B2 Compressor discharge valve providing freeze and charge migration protection 有权
标题翻译：压缩机排放阀提供冻结和电荷迁移保护
公开(公告)号：US08234877B2
公开(公告)日：2012-08-07
申请号：US12459852
申请日：2009-07-08
申请人： Dennis M. Beekman , Jay H. Johnson , Rodney L. Lakowske , Sean A. Smith , John R. Moilanen
发明人： Dennis M. Beekman , Jay H. Johnson , Rodney L. Lakowske , Sean A. Smith , John R. Moilanen
IPC分类号： F25B31/00 , F25B43/02 , F25B41/00 , F16K31/44
CPC分类号： F16K31/1223 , F25B1/047 , F25B41/04 , F25B2600/0261
摘要： A refrigerant system includes a compressor with a discharge valve that temporarily restricts the compressor's outflow at startup so that the discharge pressure can quickly rise to force lubricant back to the compressor. The discharge valve also helps prevent an axial face of a rotor of a screw compressor from rubbing against a bearing housing axial face of the compressor's housing. When the system turns off under certain low ambient air temperature conditions, the valve closes to help prevent the system's evaporator from freezing up. The discharge valve includes a novel arrangement of a piston, a valve stem extending from the piston, and a valve plug pivotally attached to the valve stem. The pivotal connection ensures a positive seal between the valve plug and a valve seat. A somewhat restricted fluid passageway between the valve's discharge chamber and piston chamber helps prevent the valve from chattering as the valve opens.
摘要翻译：制冷剂系统包括具有排出阀的压缩机，其在启动时临时限制压缩机的流出，使得排出压力可以快速上升以迫使润滑剂返回到压缩机。排放阀还有助于防止螺杆压缩机的转子的轴向面摩擦压缩机壳体的轴承座轴向面。当系统在某些低环境空气温度条件下关闭时，阀关闭，以防止系统的蒸发器冻结。排放阀包括活塞的新颖结构，从活塞延伸的阀杆和可枢转地连接到阀杆的阀塞。枢轴连接确保阀塞和阀座之间的正密封。在阀的排出室和活塞室之间有一定程度的流体通道有助于防止阀在阀打开时颤动。

6. 发明授权

US5761914A Oil return from evaporator to compressor in a refrigeration system 失效
标题翻译：在制冷系统中从蒸发器返回到压缩机
公开(公告)号：US5761914A
公开(公告)日：1998-06-09
申请号：US801545
申请日：1997-02-18
申请人： Michael D. Carey , Sean A. Smith
发明人： Michael D. Carey , Sean A. Smith
IPC分类号： F25B43/02 , F25B1/047 , F25B31/00
CPC分类号： F25B1/047 , F25B31/004 , F25B2339/0242
摘要： A refrigeration system employing a screw compressor and a falling film evaporator makes use of high-side pressure to drive lubricant, which escapes the compressor and collects as a lubricant-rich mixture of lubricant and refrigerant in the system evaporator, back to the compressor. The mixture is cyclically exposed to high-side pressure for a period of time which (i) varies in accordance with the difference between a sensed condenser-related pressure and a sensed evaporator-related pressure and (ii) is calculated to maintain a predetermined oil concentration in the lubricant-rich mixture in the evaporator so as to minimize the parasitic losses to system efficiency associated with the oil return process.
摘要翻译：使用螺杆式压缩机和降膜蒸发器的制冷系统利用高侧压力来驱动润滑剂，该润滑剂逸出压缩机，并将其作为润滑剂和系统蒸发器中的制冷剂的富含润滑剂的混合物回收到压缩机。混合物循环暴露于高侧压力一段时间，其中（i）根据感测到的冷凝器相关压力和感测的蒸发器相关压力之间的差异而变化，并且（ii）被计算以维持预定的油浓缩在蒸发器中富含润滑剂的混合物中，以便最小化与回油过程相关的系统效率的寄生损失。

7. 发明授权

US06516627B2 Flowing pool shell and tube evaporator 有权
公开(公告)号：US06516627B2
公开(公告)日：2003-02-11
申请号：US09849557
申请日：2001-05-04
申请人： H. Kenneth Ring , Jon P. Hartfield , Sean A. Smith , William J. Peck
发明人： H. Kenneth Ring , Jon P. Hartfield , Sean A. Smith , William J. Peck
IPC分类号： F25B4302
CPC分类号： F25B31/004 , F25B39/02 , F25B2339/0242
摘要： An evaporator for a refrigeration chiller includes a tube bundle in which at least a portion of the tubes of the tube bundle are immersed in a pool which include both liquid refrigerant and is lubricant. Liquid refrigerant and lubricant are deposited into the pool at a first pool location. Because of the vaporization of refrigerant that occurs within the pool, a pattern of flow is established and managed that causes the lubricant in the pool to migrate from the location of its deposit into the pool to a second pool location. An outlet is provided at the second pool location from which lubricant is drawn out of the evaporator.

8. 发明授权

US06266964B1 Use of electronic expansion valve to maintain minimum oil flow 有权
标题翻译：使用电子膨胀阀来保持最小的油流量
公开(公告)号：US06266964B1
公开(公告)日：2001-07-31
申请号：US09480362
申请日：2000-01-10
申请人： Jonathan M. Meyer , Lee L. Sibik , Sean A. Smith
发明人： Jonathan M. Meyer , Lee L. Sibik , Sean A. Smith
IPC分类号： F25D1702
CPC分类号： F04B39/0207 , F25B31/002 , F25B41/065 , F25B2341/065 , F25B2700/04 , Y02B30/72 , Y10T137/7306
摘要： A method of controlling an expansion valve including the steps of: measuring a primary system condition; determining an error in the primary system condition; measuring a secondary system condition; determining an error in the secondary system condition; and modulating the expansion valve based upon the larger of the first or second error.
摘要翻译：一种控制膨胀阀的方法，包括以下步骤：测量主系统状况; 确定主要系统状况的错误; 测量二次系统状况; 确定二次系统状况中的错误; 并且基于第一或第二误差中的较大者来调节膨胀阀。

9. 发明授权

US07233834B2 Computer-aided modeling and manufacture of products 失效
标题翻译：计算机辅助建模与制造产品
公开(公告)号：US07233834B2
公开(公告)日：2007-06-19
申请号：US10884622
申请日：2004-07-02
申请人： John T. McDonald, Jr. , Sean A. Smith , Norman J. Weeks, III , Kevin R. Anderson
发明人： John T. McDonald, Jr. , Sean A. Smith , Norman J. Weeks, III , Kevin R. Anderson
IPC分类号： G06F19/00
CPC分类号： G05B13/0255 , G05B17/02
摘要： Disclosed are modeling and process control techniques for manufacturing products. More specifically, computer-aided modeling techniques are described that allow the manufacturer to predict a profile for a multivariate output that is necessary to achieve a target performance property for a manufactured product.
摘要翻译：公开了用于制造产品的建模和过程控制技术。更具体地，描述了计算机辅助建模技术，其允许制造商预测实现产品的目标性能属性所必需的多变量输出的轮廓。

10. 发明授权

US06382310B1 Stepped heat exchanger coils 失效
标题翻译：步进式热交换器盘管
公开(公告)号：US06382310B1
公开(公告)日：2002-05-07
申请号：US09638347
申请日：2000-08-15
申请人： Sean A. Smith
发明人： Sean A. Smith
IPC分类号： F28F926
CPC分类号： F28B1/06 , F25B39/00 , F25B39/04 , F28D1/0477 , F28F9/26
摘要： A heat exchanger comprising: a plurality of longitudinally extending tubes grouped into at least first, second and third passes; the tubes in the first pass being serially connected with tubes in the second pass; the tubes in the second pass being serially connected with tubes in the third pass; and wherein the number of tubes in the first pass is greater than the number of tubes in the third pass.
摘要翻译：一种热交换器，包括：分成至少第一，第二和第三通道的多个纵向延伸的管; 第一道中的管与第二道中的管串联连接; 第二遍中的管与第三道中的管串联连接; 并且其中第一遍中的管的数量大于第三遍中的管的数量。

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