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1. 发明授权

US5123256A Method of compressor staging for a multi-compressor refrigeration system 失效
标题翻译：多压缩机制冷系统的压缩机分级方法
公开(公告)号：US5123256A
公开(公告)日：1992-06-23
申请号：US696896
申请日：1991-05-07
申请人： Robert L. Oltman
发明人： Robert L. Oltman
IPC分类号： F25B49/02
CPC分类号： F25B49/022 , F25B2400/075 , F25B2500/26 , F25B2600/111 , F25B2600/2513 , Y02B30/743 , Y10T307/469
摘要： A method of staging a plurality of compressors in a refrigeration system. The method comprises the steps of: accumulating a first operative condition for each compressor; accumulating a second operative condition for each compressor; initiating operation of whichever compressor has the lowest accumulation of the first operative condition whenever a system controller calls for an increase in system capacity; and terminating operation of whichever compressor has the greatest accumulation of the second operative condition whenever the system controller calls for a reduction in system capacity.
摘要翻译：一种在制冷系统中分级多个压缩机的方法。该方法包括以下步骤：为每个压缩机累积第一操作条件; 累积每个压缩机的第二操作条件; 每当系统控制器要求增加系统容量时，无论哪个压缩机具有最低累积的第一操作条件的启动操作; 以及每当系统控制器要求降低系统容量时，无论哪个压缩机具有第二操作条件的最大累积的终止操作。

2. 发明授权

US5431025A Apparatus and method of oil charge loss protection for compressors 失效
标题翻译：压缩机油损失保护装置及方法
公开(公告)号：US5431025A
公开(公告)日：1995-07-11
申请号：US266539
申请日：1994-06-27
申请人： Robert L. Oltman , Michael D. Carey
发明人： Robert L. Oltman , Michael D. Carey
IPC分类号： F04C28/28 , F04C29/00 , F25B1/047 , F25B31/00 , F25B43/02
CPC分类号： F04C28/28 , F04C29/0007 , F25B1/047 , F25B31/002 , F04C2270/19 , F05B2270/303 , F25B2700/2105 , F25B2700/21155
摘要： A method of compressor over temperature protection. The method comprises the steps of monitoring the temperature of oil entering a compressor, determining an oil temperature differential between the entering and exiting oil temperatures, comparing the oil temperature differential to first and second predetermined limits, terminating compressor operation if the first limit is exceeded by the oil temperature differential, and terminating compressor operation if the second temperature limit is exceeded by the oil temperature differential for longer than a first time period.
摘要翻译：一种压缩机过温保护方法。该方法包括以下步骤：监测进入压缩机的油的温度，确定进入和退出油温之间的油温差，将油温差与第一和第二预定极限进行比较，如果超过第一限度则终止压缩机运行油温差，以及如果第二温度极限超过油温差超过第一时间段，则终止压缩机操作。

3. 发明授权

US5347821A Apparatus and method of oil charge loss protection for compressors 失效
标题翻译：压缩机油损失保护装置及方法
公开(公告)号：US5347821A
公开(公告)日：1994-09-20
申请号：US96801
申请日：1993-07-23
申请人： Robert L. Oltman , Michael D. Carey
发明人： Robert L. Oltman , Michael D. Carey
IPC分类号： F04C28/28 , F04C29/00 , F25B1/047 , F25B31/00 , F25B43/02
CPC分类号： F04C28/28 , F04C29/0007 , F25B1/047 , F25B31/002 , F04C2270/19 , F05B2270/303 , F25B2700/2105 , F25B2700/21155
摘要： A method and apparatus for monitoring oil charge loss for use with a refrigeration system. The refrigeration system has a compressor for compressing a refrigerant gas, an oil/gas separator for separating compressed refrigerant from lubricating oil, a condenser for condensing the compressed refrigerant gas, an oil cooler for cooling oil separated from the refrigerant, the refrigerant and oil both having known and differing coefficients of heat transfer, and an injection system for injecting the cooled oil into the compressor.
摘要翻译：一种用于监测与制冷系统一起使用的油费损失的方法和装置。制冷系统具有用于压缩制冷剂气体的压缩机，用于将压缩的制冷剂与润滑油分离的油/气分离器，用于冷凝压缩的制冷剂气体的冷凝器，用于冷却从制冷剂分离的油的油冷却器，制冷剂和油两者具有已知和不同的传热系数，以及用于将冷却的油喷射到压缩机中的喷射系统。

4. 发明授权

US5231846A Method of compressor staging for multi-compressor multi-circuited refrigeration systems 失效
标题翻译：多压缩机多回路制冷系统的压缩机分级方法
公开(公告)号：US5231846A
公开(公告)日：1993-08-03
申请号：US8917
申请日：1993-01-26
申请人： Craig M. Goshaw , Robert L. Oltman
发明人： Craig M. Goshaw , Robert L. Oltman
IPC分类号： F04C28/02 , F04C28/06 , F25B6/00 , F25B49/02 , G05D23/19
CPC分类号： F04C28/02 , F04C28/06 , F25B49/022 , F25B6/00 , G05D23/1912 , F25B2400/075 , F25B2600/0251
摘要： A method of staging and modulating compressors in a multi-circuited refrigeration system including a plurality of condensing heat exchange circuits where each condensing heat exchange circuit includes a plurality of compressors. The method comprises the steps of: accumulating a first operative condition for each compressor; accumulating a second operative condition for each compressor; determining the status of each compressor in each circuit and designating therefrom a first list of circuits having compressors available to be turned on and a second list of circuits having compressors available to be turned off. The method also comprises the steps of: initiating operation of the compressor from the first list with the lowest accumulation of the first operative condition whenever the system calls for an increase in capacity; terminating operation of the compressor from the second list having the greatest accumulation of the second operative condition whenever the system calls for a decrease in capacity; determining the number of compressors which should be modulating; and modulating, subject to the modulating compressor number determining step, the compressors necessary to meet the modulating compressor number in accordance with the greatest accumulation of the second operative condition.
摘要翻译：一种在包括多个冷凝热交换电路的多回路制冷系统中分段和调节压缩机的方法，其中每个冷凝热交换回路包括多个压缩机。该方法包括以下步骤：为每个压缩机累积第一操作条件; 累积每个压缩机的第二操作条件; 确定每个电路中的每个压缩机的状态并由此指定具有可打开的压缩机的第一列表电路和具有可被关闭的压缩机的第二电路列表。该方法还包括以下步骤：每当系统要求增加容量时，从第一列表起动压缩机的操作，其中第一操作条件的累积最低; 每当系统要求降低容量时，压缩机从第二列表中终止具有最大累积第二操作条件的操作; 确定应调节的压缩机的数量; 并且根据调节压缩机数量确定步骤，根据第二操作条件的最大累积调制满足调制压缩机数量所必需的压缩机。

5. 发明授权

US5138844A Condenser fan control system for use with variable capacity compressor 失效
标题翻译：冷凝器风扇控制系统，用于可变容量压缩机
公开(公告)号：US5138844A
公开(公告)日：1992-08-18
申请号：US503482
申请日：1990-04-03
申请人： Thomas J. Clanin , Dennis R. Dorman , Robert L. Oltman , Merle A. Renaud , Paul C. Rentmeester
发明人： Thomas J. Clanin , Dennis R. Dorman , Robert L. Oltman , Merle A. Renaud , Paul C. Rentmeester
IPC分类号： F25B49/02 , G05D23/19
CPC分类号： F25B49/027 , G05D23/1912 , F25B2600/111 , Y02B30/743
摘要： A method of controlling a multiplicity of condenser fans in a refrigeration system comprising the steps of: calculating a first difference in state between a high pressure side and a low pressure side of the refrigeration system; determining an optimum state for the refrigeration system; determining a second difference in state between the first difference and the optimum difference; and controlling the multiplicity of condenser fans if the second difference exceeds a predetermined value.
摘要翻译：一种在制冷系统中控制多个冷凝器风扇的方法，包括以下步骤：计算制冷系统的高压侧和低压侧之间的第一差异状态; 确定制冷系统的最佳状态; 确定第一差异和最佳差异之间的第二状态差; 以及如果所述第二差异超过预定值则控制所述多个冷凝器风扇。

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