专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5596878A Methods and apparatus for operating a refrigeration unit 失效
标题翻译：用于操作制冷单元的方法和装置
公开(公告)号：US5596878A
公开(公告)日：1997-01-28
申请号：US494453
申请日：1995-06-26
申请人： Jay L. Hanson , James E. Nixon , Stanley O. Hoium , Peter W. Freund
发明人： Jay L. Hanson , James E. Nixon , Stanley O. Hoium , Peter W. Freund
IPC分类号： B60H1/00 , F25B1/047 , F25B5/02 , F25B27/00 , F25B29/00 , F25B49/02 , F25B13/00
CPC分类号： B60H1/00007 , F25B1/047 , F25B27/00 , F25B29/003 , F25B49/02 , F25B5/02 , F25B2400/13
摘要： A refrigeration unit of the type having an economizer cycle driven by a prime mover cooled by a liquid coolant. Electrical control configures refrigerant flow paths of the unit to provide heating and cooling cycles, as required to control the temperature of a conditioned space to a predetermined set point temperature. Heat from the liquid coolant is used to enhance the heating cycle. A heating cycle is initiated immediately, when required, when the temperature of the liquid coolant is above a predetermined temperature. A heating cycle is delayed by a special refrigeration cycle which increases the load on the prime mover, when the temperature of the liquid coolant is not above the predetermined temperature. In a preferred embodiment of the invention, the special refrigeration cycle provides simultaneous heating and cooling cycles, which include evaporating liquid refrigerant in an evaporator associated with the conditioned space, as in a cooling cycle, while condensing hot gas refrigerant from the compressor in a condenser associated with the conditioned space, as in a heating cycle.
摘要翻译：这种类型的制冷装置具有由由液体冷却剂冷却的原动机驱动的节能循环。电气控制根据需要配置单元的制冷剂流动路径以提供加热和冷却循环，以将调节空间的温度控制到预定的设定点温度。来自液体冷却剂的热量用于增强加热循环。当需要时，当液体冷却剂的温度高于预定温度时立即开始加热循环。当液体冷却剂的温度不高于预定温度时，加热循环被延迟特殊的制冷循环，这增加了原动机的负荷。在本发明的优选实施例中，专用制冷循环提供同时的加热和冷却循环，其包括在与冷却循环中相关联的蒸发器中蒸发液体制冷剂，同时冷凝来自压缩机的热气体制冷剂在冷凝器与调节空间相关联，如在加热循环中。

2. 发明授权

US5454229A Refrigeration unit control with shutdown evaluation and automatic restart 失效
标题翻译：制冷单元控制具有关机评估和自动重启功能
公开(公告)号：US5454229A
公开(公告)日：1995-10-03
申请号：US245266
申请日：1994-05-18
申请人： Jay L. Hanson , Doyle G. Herrig , Stanley O. Hoium , James M. Roush , James E. Nixon
发明人： Jay L. Hanson , Doyle G. Herrig , Stanley O. Hoium , James M. Roush , James E. Nixon
IPC分类号： B60H1/32 , F25B27/00 , F25B49/00 , F25D29/00 , F25B49/02
CPC分类号： B60H1/3208 , F25B27/00 , F25B49/005 , F25D29/003 , F25B2500/26
摘要： Methods and apparatus for monitoring conditions which may cause shut down of a refrigeration unit. When a condition of the refrigeration unit is detected which requires shut down, a shut down counter is incremented and the shut down is made with the provision for automatic restart of the refrigeration unit in response to predetermined parameters of the refrigeration unit. When the predetermined parameters initiate automatic re-start of the refrigeration unit, a timer is started. If the refrigeration unit operates for a predetermined period of time without shut down, the counting means is reset. A shut down before expiration of the predetermined timing period again increments the shut down counter. In one embodiment, when a predetermined condition which may cause shut down approaches a predetermined shut down value, the methods and apparatus modify the operation of the refrigeration unit one or more times in an attempt to prevent shut down. A predetermined count value on the shut down counter prevents further automatic re-starts of the refrigeration unit. In a preferred embodiment, the monitored conditions which may cause shut down are the high side pressure of the refrigeration unit, and, when a refrigerant compressor is driven by an internal combustion engine, the temperature of the engine.
摘要翻译：用于监测可能导致制冷单元关闭的状况的方法和装置。当检测到需要关闭的制冷单元的状态时，关闭计数器增加，并且响应于制冷单元的预定参数而使制冷单元自动重新启动进行关闭。当预定参数启动制冷单元的自动再启动时，启动定时器。如果制冷单元在预定时间段内操作而不关闭，则计数装置被复位。在预定时间期限到期之前关闭再次增加关闭计数器。在一个实施例中，当可能导致关闭的预定条件接近预定的关闭值时，方法和装置一次或多次地修改制冷单元的操作，以试图防止关闭。关闭计数器上的预定计数值防止制冷单元进一步自动重启。在一个优选实施例中，可能导致关闭的监视条件是制冷单元的高侧压力，并且当制冷剂压缩机由内燃机驱动时，发动机的温度。

3. 发明授权

US6095427A Temperature control system and method for efficiently obtaining and maintaining the temperature in a conditioned space 失效
标题翻译：用于有效地获得和维持调节空间中的温度的温度控制系统和方法
公开(公告)号：US6095427A
公开(公告)日：2000-08-01
申请号：US296569
申请日：1999-04-22
申请人： Stanley O. Hoium , Peter W. Freund
发明人： Stanley O. Hoium , Peter W. Freund
IPC分类号： F24F11/00 , F25B1/047 , F25B5/02 , F25B27/00 , G05D23/19 , F24F7/00
CPC分类号： F24F11/006 , B60H1/3232 , G05D23/1917 , F24F11/0012 , F24F2011/0064 , F25B1/047 , F25B2400/13 , F25B27/00 , F25B5/02
摘要： A method for efficiently maintaining the temperature of fluid in a conditioned space at a predetermined set point temperature, the method comprising the steps of: (a) operating the temperature control system in a first operating mode; (b) sensing the temperature of the conditioned space fluid; (c) calculating the Integral Error of the temperature of the conditioned space fluid; and (d) if the Integral Error equals or exceeds a predetermined Integral Error threshold value for the first operating mode, switching the unit to a second operating mode.
摘要翻译：一种用于在预定设定点温度下有效地保持调节空间中的流体温度的方法，所述方法包括以下步骤：（a）以第一操作模式操作温度控制系统; （b）感测调节空间流体的温度; （c）计算调节空气流体温度的积分误差; 和（d）如果积分误差等于或超过用于第一操作模式的预定积分误差阈值，则将该单元切换到第二操作模式。

4. 发明授权

US4918932A Method of controlling the capacity of a transport refrigeration system 失效
标题翻译：控制运输制冷系统容量的方法
公开(公告)号：US4918932A
公开(公告)日：1990-04-24
申请号：US356146
申请日：1989-05-24
申请人： Alan D. Gustafson , Lowell B. Naley , David A. Christiansen , Stanley O. Hoium , Robert L. Harrington , Dannis R. Johnson , Gregory R. Truckenbrod
发明人： Alan D. Gustafson , Lowell B. Naley , David A. Christiansen , Stanley O. Hoium , Robert L. Harrington , Dannis R. Johnson , Gregory R. Truckenbrod
IPC分类号： F25B49/02 , F25D29/00 , G05D23/20
CPC分类号： F25B49/02 , F25D29/003 , G05D23/1906 , G05D23/20
摘要： A method of controlling a refrigeration system by determining an average air temperature by sensing and averaging evaporator return and discharge air temperatures, and developing an average error by using the average air temperature and a selected set point temperature. The average air temperature is then used to calculate a proportional error and an integral error, and the discharge air temperature is used to calculate a floor error. The proportional error, integral error and floor error are weighted by predetermined gain factors and then summed to provide an error signal which is used to modulate the capacity of the refrigeration system, with the control mode depending upon the location of the error signal relative to set point.
摘要翻译：通过通过感测和平均蒸发器返回和排出空气温度来确定平均空气温度并通过使用平均空气温度和选定的设定点温度来显现平均误差来控制制冷系统的方法。然后使用平均空气温度来计算比例误差和积分误差，并且使用排出空气温度来计算底部误差。比例误差，积分误差和地板误差由预定的增益因子加权，然后相加以提供用于调制制冷系统的容量的误差信号，其中控制模式取决于误差信号相对于设定的位置点。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式