公开(公告)号：US5802860A

公开(公告)日：1998-09-08

申请号：US843097

申请日：1997-04-25

申请人： Richard C. Barrows

发明人： Richard C. Barrows

IPC分类号： F25B1/00 ,  F25B41/04 ,  F25B45/00 ,  F25B49/02 ,  F25B41/00 ,  F25B49/00

CPC分类号： F25B41/04 ,  F25B45/00 ,  F25B49/027 ,  F25B2400/16 ,  F25B2400/19 ,  F25B2600/19

摘要： A refrigeration system which controls subcooling by controlling the amount of refrigerant diverted from the condenser to the receiver based upon the difference in temperature between the phase change transition temperature of the refrigerant in the condenser and the liquid refrigerant temperature at the condenser output. Refrigerant is bled from the receiver to charge the system until the condenser pressure causes the difference between the phase change and liquid temperatures to exceed a predetermined value. A controller responds to this condition by simultaneously operating a bleed valve at the receiver inlet and a release valve at its outlet to draw refrigerant from the condenser into the receiver. As the condenser pressure drops, the difference between the phase change and liquid temperatures decreases toward the desired amount, and the cycle begins again.

摘要翻译： 基于冷凝器中的制冷剂的相变转变温度与冷凝器输出的液体制冷剂温度之间的温度差，通过控制从冷凝器向接收器转移的制冷剂的量来控制过冷的制冷系统。 制冷剂从接收器排出，以对系统充电，直到冷凝器压力导致相变和液体温度之间的差超过预定值。 控制器通过在接收器入口处同时操作泄放阀和在其出口处的释放阀来响应于该状态，以将制冷剂从冷凝器抽吸到接收器中。 随着冷凝器压力下降，相变和液体温度之间的差异朝着期望的量降低，循环再次开始。

公开(公告)号：US4437317A

公开(公告)日：1984-03-20

申请号：US352473

申请日：1982-02-26

申请人： Fayez F. Ibrahim

发明人： Fayez F. Ibrahim

IPC分类号： F25B5/00 ,  F25B47/02 ,  F25B41/00 ,  F25D21/06

CPC分类号： F25B47/022 ,  F25B2400/075 ,  F25B2400/16 ,  F25B2400/22 ,  F25B5/00 ,  Y10S62/17

摘要： A closed circuit refrigeration system includes a compressor, a remote condenser connected to the output of the compressor, and one or more evaporators coupled within the system. A hot gas defrost system is included to rapidly obtain a high operating defrost gas pressure upon the initiation of a defrost cycle and to thereafter maintain an adequate pressure for hot gas defrosting of the evaporators. The hot gas defrost system includes a differential pressure regulated valve which closes the compressor discharge line to shunt the hot gas discharge directly into a hot gas defrost manifold. The differential valve is controlled by a defrost control means. The refrigeration system can also include a receiver tank and a by-pass conduit for shunting refrigerant liquid through the by-pass conduit rather than through the receiver tank depending upon operating conditions. A method of operating a closed circuit refrigeration system with the above features is set forth.

摘要翻译： 闭路制冷系统包括压缩机，连接到压缩机的输出的远程冷凝器以及耦合在系统内的一个或多个蒸发器。 包括热气体除霜系统，以在开始除霜循环之后快速获得高操作除霜气体压力，并且此后保持适当的压力用于蒸发器的热气体除霜。 热气除霜系统包括差压调节阀，其关闭压缩机排放管线，将热气体排放物直接分流到热气体除霜歧管中。 差压阀由除霜控制装置控制。 制冷系统还可以包括接收罐和旁路管道，用于根据操作条件通过旁路管道而不是通过接收罐分流制冷剂液体。 阐述了具有上述特征的闭路制冷系统的操作方法。

公开(公告)号：US4389856A

公开(公告)日：1983-06-28

申请号：US296625

申请日：1981-08-27

申请人： Fayez F. Ibrahim

发明人： Fayez F. Ibrahim

IPC分类号： F25D21/04 ,  A47F3/04 ,  F25B47/00 ,  F25B49/02

CPC分类号： F25B47/006 ,  A47F3/04 ,  F25B49/027 ,  F25B2341/0014 ,  F25B2400/22 ,  F25D21/04

摘要： A low temperature refrigerant gas heater system for warming structural parts of refrigerated display cabinets sufficiently to prevent the formation of moisture condensate. A desuperheating means is provided for an auxiliary gas flow line taken off from a primary refrigeration circuit in order to lower the temperature of a portion of the refrigerant gas flow to within the range of about 80.degree. F. to 130.degree. F. for this purpose. The auxiliary gas have pressure-temperature-enthalpy conditions located in the superheated region or the saturation envelope area of a pressure-enthalpy diagram within these temperature limits. The use of low temperature refrigerant gas in the auxiliary flow line avoids heater line warping and buckling and customer inconvenience and discomfort problems which are incurred by use of high temperature compressor refrigerant gas.

摘要翻译： 一种低温制冷剂气体加热器系统，用于对冷藏陈列柜的结构部件进行加热，以充分防止水分冷凝物的形成。 为了将一部分制冷剂气体流的温度降低到大约80°F至130°F的范围内，为从主制冷回路中取出的辅助气体流路提供减温装置。为此目的 。 辅助气体具有位于过热区域内的压力 - 温度 - 焓条件或在这些温度范围内的压力 - 焓图的饱和包络面积。 在辅助流水线中使用低温制冷剂气体可以避免使用高温压缩机制冷剂气体引起的加热器线翘曲和弯曲以及客户不便和不适的问题。

公开(公告)号：US4373348A

公开(公告)日：1983-02-15

申请号：US226843

申请日：1981-01-21

申请人： Fayez Ibrahim ,  Edward Bowman

发明人： Fayez Ibrahim ,  Edward Bowman

IPC分类号： F25B1/00 ,  F25B29/00 ,  F25B47/02 ,  F25B49/02

CPC分类号： F25B47/022 ,  F25B1/00 ,  F25B29/003 ,  F25B49/027 ,  F25B2400/075 ,  F25B2400/22

摘要： A refrigeration system having an increasing efficiency of operation and reduction in power consumption. Low head pressure and subcooling the liquid refrigerant emitted from the remote condenser, the efficiency of operation of the compressor of the refrigeration system can be substantially increased. The particular type of refrigeration system of concern generally includes a compressor for compressing a gaseous refrigerant, a condenser for condensing the gaseous refrigerant and subcooling the liquid refrigerant, a receiver for receiving the liquid and a plurality of display cases having evaporators for evaporating the liquid refrigerant. The gaseous refrigerant passing through the condenser is first condensed into a liquid at a condensing temperature of approximately 10.degree. to 25.degree. F. above a preselected cooling temperature. The condensed liquid is then subcooled to the preselected cooling temperature which should be preferably either approximately 50.degree. F. or the temperature of the ambient atmosphere surrounding the condenser, whichever is higher.

摘要翻译： 一种具有增加的操作效率和降低功耗的制冷系统。 低压头并对从远程冷凝器排出的液体制冷剂进行过冷，能够显着提高制冷系统的压缩机的运转效率。 关注的制冷系统的特定类型通常包括用于压缩气态制冷剂的压缩机，用于冷凝气态制冷剂并过冷液体制冷剂的冷凝器，用于接收液体的接收器和具有用于蒸发液体制冷剂的蒸发器的多个显示器 。 通过冷凝器的气态制冷剂首先在高于预选冷却温度的约10°至25°F的冷凝温度下冷凝成液体。 然后将冷凝的液体过冷至预选的冷却温度，该冷却温度应优选为约50°F或冷凝器周围环境气氛的温度（以较高者为准）。

公开(公告)号：US4361012A

公开(公告)日：1982-11-30

申请号：US184033

申请日：1980-09-04

申请人： Fayez F. Ibrahim

发明人： Fayez F. Ibrahim

IPC分类号： A47F3/04 ,  F25D21/04 ,  F25D21/12

CPC分类号： F25D21/125 ,  A47F3/0408 ,  F25D21/04

摘要： An energy efficient refrigerated display cabinet having glass barrier doors and one or more guard air bands to protect the primary refrigerated air band. A single guard air band is circulated about the primary refrigerated air band in order to protect the same from contact with the inner walls of the cabinet or the ambient air upon opening of the barrier doors. The cabinet can be provided with an air defrost system in which ambient air is taken in through ports in the cabinet which are selectively closed by gates or through a gap between the barrier doors and the associated access opening. An ambient air band can also be provided for circulation across the outer surface of the barrier doors in order to slightly raise the heat transfer into the glass panes in order to aid reduction of moisture condensate formation on the glass panes.

摘要翻译： 一种具有玻璃阻挡门和一个或多个保护空气带的节能冷藏展示柜，用于保护初级冷藏空气带。 单个防护空气带围绕主冷藏空气带循环，以便在打开阻挡门时保护其免受与机壳内壁或周围空气的接触。 机柜可以设置有一个空气除霜系统，其中环境空气通过机柜中的通过门选择性地关闭的环境空气或通过隔离门和相关联的进入开口之间的间隙被吸入。 也可以设置环境空气带，以便跨阻挡门的外表面循环，以便稍微升高进入玻璃板的热传递，以帮助减少玻璃板上的水分凝结物的形成。

公开(公告)号：US4341083A

公开(公告)日：1982-07-27

申请号：US145711

申请日：1980-05-01

申请人： Fayez F. Ibrahim ,  Elmer J. Subera

发明人： Fayez F. Ibrahim ,  Elmer J. Subera

IPC分类号： A47F3/04 ,  E05F15/12 ,  F25D21/12

CPC分类号： A47F3/043 ,  E05F15/611 ,  F25D21/125 ,  E05Y2900/202 ,  F25D2317/0684 ,  F25D2323/024

摘要： An improved refrigerated merchandiser cabinet for food products storage and displaying which is equipped with transparent barrier doors which are openable by a door operating mechanism which selectively creates a gap between the door and the covered access opening to permit flow-through of ambient air for use during the defrost cycle. The door operating mechanism also permits the gap to be closed by imposition of an outside force by provision of a motion take-up means. Normal product entry and customer usage is provided for. Operation of the refrigerated cabinet with either a single or multiple air bands during a refrigeration cycle is provided for. During the defrost cycle a number of ambient air flow patterns can be employed, including the use of an auxiliary air fan. Reversal of the air band flow pattern during a defrost cycle is provided for. The method of operating the improved refrigeration display cabinet is also included.

摘要翻译： 一种改进的用于食品储存和展示的冷藏商品柜，其具有可由门操作机构打开的透明隔离门，该门可选择性地在门和被覆盖的进入开口之间形成间隙，以允许环境空气流过以供在 除霜循环。 门操作机构还允许通过设置运动牵引装置施加外力来关闭间隙。 提供正常的产品入口和客户使用。 提供了在制冷循环中使用单个或多个空气带的冷藏柜的操作。 在除霜循环期间，可以使用许多环境空气流动模式，包括使用辅助空气风扇。 提供除霜循环期间空气带流动模式的逆转。 还包括操作改进的制冷显示柜的方法。

公开(公告)号：US4338792A

公开(公告)日：1982-07-13

申请号：US225997

申请日：1981-01-19

申请人： Fayez F. Ibrahim

发明人： Fayez F. Ibrahim

IPC分类号： A47F3/04 ,  F25D21/12

CPC分类号： F25D21/125 ,  A47F3/0447 ,  A47F3/0452

摘要： An improvement in a refrigerated display case in which an air flow restriction baffle is positioned adjacent to the discharge end of the air conduit containing the defrost ambient air band. The baffle increases the linear velocity of the air band and the air momentum sufficiently to cause the band to flow away from the access opening of the display case whereby continuous recirculation of the defrost air is avoided. The baffle can form a restricted air flow cross-sectional area which is about 50% to 90% of the cross-sectional area of the air flow conduit immediately proceeding the position of the baffle. A restricted air flow area of these amounts enable a linear velocity increase of about 10% to 100% based on the air band velocities normally used during defrost cycles.

摘要翻译： 一种冷藏展示柜的改进，其中空气流量限制挡板邻近包含除霜环境空气带的空气管道的排放端定位。 挡板增加了空气带的线速度和空气动量，足以导致带从显示器壳体的进入开口流出，从而避免除霜空气的连续再循环。 挡板可以形成受限制的空气流横截面积，其是直接进入挡板位置的空气流动导管的横截面积的约50％至90％。 这些量的限制空气流动面积基于除霜循环期间通常使用的空气带速度，可以实现约10％至100％的线速度增加。

公开(公告)号：US4329852A

公开(公告)日：1982-05-18

申请号：US8111

申请日：1979-01-31

申请人： Fayez F. Ibrahim ,  Arthur Perez

发明人： Fayez F. Ibrahim ,  Arthur Perez

IPC分类号： A47F3/04 ,  F25D21/12

CPC分类号： A47F3/0452 ,  F25D21/125

摘要： An open top refrigerated display case having an upper display portion for displaying refrigerated products and a lower storage portion for storing refrigerated products. A cooling mechanism cools both the display portion and storage portion. The cooling mechanism establishes a refrigerated air band which encircles the display portion. This refrigerated air band is established by circulating air through an air conduit which surrounds the display portion and is positioned above the storage portion of the display case. Mounted within the air conduit is a fan and a set of evaporation coils. Air is expelled from one end of the conduit at an outlet opening located near the top of the display case and such air is propelled across the opening in the display case towards the opposite end of the case where it is received by an inlet opening of the air conduit. In this manner, an air curtain is formed across the top of the display case. During a refrigeration cycle the air passing along this air band is cooled thereby cooling the display portion of the display case. In addition, air from the air conduit is diverted after it has passed through the evaporation coils into the lower storage portion where it is directed around the storage portion and flows into the air conduit where it is recirculated by the fan within such conduit.

摘要翻译： 一种具有用于显示冷藏产品的上部显示部分和用于存储冷藏产品的下部存储部分的敞开式冷藏陈列柜。 冷却机构冷却显示部分和存储部分。 冷却机构建立围绕显示部的冷藏空气带。 该冷藏空气带是通过围绕显示部分的空气管道循环空气而形成的，并且位于显示壳体的存储部分的上方。 安装在空气管道内的是风扇和一组蒸发盘管。 空气从位于显示器壳体顶部附近的出口处的导管的一端排出，并且这样的空气被推向穿过显示器壳体中的开口的另一端上， 空气管道。 以这种方式，在显示器壳体的顶部形成气帘。 在制冷循环中，沿着该空气带通过的空气被冷却，从而冷却显示壳体的显示部分。 此外，来自空气管道的空气在其通过蒸发盘管之后被转移到下部存储部分中，在该下部存储部分中其被定向在存储部分周围，并且流入空气管道中，在该管道中，风扇在该导管内再循环。

公开(公告)号：US4308975A

公开(公告)日：1982-01-05

申请号：US98613

申请日：1979-11-29

申请人： E. Lee Bowen

发明人： E. Lee Bowen

IPC分类号： B67D1/04 ,  B67D1/06 ,  B67D1/12 ,  B67D5/22

CPC分类号： B67D1/1234 ,  B67D1/04 ,  B67D1/06

摘要： A beverage (wine) cooling and dispensing apparatus comprising a cabinet having an insulated internal compartment enclosing a number of different removable receptacles containing relatively large quantities of different beverages and a self-contained refrigeration system, a plurality of externally located dispensing heads projecting from the cabinet, one for each receptacle, and conduits providing pressurized flow of beverage between each receptacle and its associated dispensing head, with selectively operated controls being provided for each path including selectors at each head whereby any of a plurality of different relatively small quantities from each receptacle may be selectively dispensed.

摘要翻译： 一种饮料（葡萄酒）冷却和分配设备，包括具有封闭多个不同可移除的容器的绝缘内部隔室的柜，所述不同的可移除的容器包含相对大量的不同饮料和独立的制冷系统，多个外部位于从柜体突出的分配头 ，每个插座一个，以及在每个插座和其相关联的分配头之间提供加压饮料流的导管，其中为每个路径提供选择性操作的控制，每个路径包括在每个头部处的选择器，其中来自每个容器的多个不同的相对小量的任何一个可以 有选择地分配。

公开(公告)号：US4304100A

公开(公告)日：1981-12-08

申请号：US78400

申请日：1979-09-24

申请人： Fayez F. Ibrahim

发明人： Fayez F. Ibrahim

IPC分类号： F25B1/00 ,  F25B6/02 ,  F25B7/00 ,  F25B49/02 ,  F25B39/04

CPC分类号： F25B49/027 ,  F25B7/00 ,  F25B2400/22 ,  Y10S62/17

摘要： A refrigeration system employs mechanical subcooling to substantially increase the efficiency of operation and reduce power consumption. The refrigeration system includes a compressor for compressing a gaseous refrigerant, a condenser for condensing the gaseous refrigerant and subcooling the liquid refrigerant, a receiver for receiving the liquid and a plurality of display cases having evaporators for evaporating the liquid refrigerant.A supplemental subcooling system, including a subcooling evaporator associated with the receiver discharge further subcools the condensed refrigerant before it is passed to the display case evaporators. The compressed gaseous refrigerant is first condensed at a condensing temperature of approximately 10.degree. to 25.degree. F. above a preselected cooling temperature. The condensed liquid is then mechanically subcooled if necessary to the preselected cooling temperature which should be preferably approximately 50.degree. F.

摘要翻译： 制冷系统采用机械过冷来显着提高操作效率并降低功耗。 制冷系统包括用于压缩气态制冷剂的压缩机，用于冷凝气态制冷剂并过冷却液体制冷剂的冷凝器，用于接收液体的接收器和具有用于蒸发液体制冷剂的蒸发器的多个显示器壳体。 包括与接收器放电器相关联的过冷度蒸发器的补充过冷系统在冷凝的制冷剂被传递到显示器壳体蒸发器之前进一步将其冷凝。 压缩的气体制冷剂首先在高于预选冷却温度的约10°至25°F的冷凝温度下冷凝。 然后如果必要，冷凝的液体被机械过冷至预选的冷却温度，该冷却温度应优选为约50°F。