公开(公告)号：US4302948A

公开(公告)日：1981-12-01

申请号：US73247

申请日：1979-09-06

申请人： Fayez F. Ibrahim ,  Elmer Subera ,  William deBruyn

发明人： Fayez F. Ibrahim ,  Elmer Subera ,  William deBruyn

IPC分类号： A47F3/04

CPC分类号： A47F3/0447

摘要： A refrigerated display case having at least two outlet air conduits with a unitary grid member covering the outlet openings of such conduits. The display case is formed by a cabinet having an interior display space for holding refrigerated products. A primary air conduit encircles the cabinet and has an outlet opening at one end adjacent to an access opening in the cabinet and an inlet opening at its other end adjacent to the access opening. The inlet and outlet openings of the primary air conduit are aligned so that air leaving the outlet opening is directed across the access opening of the cabinet and received by the inlet opening. A set of evaporator coils are arranged within the primary air conduit for refrigerating the air passing through such conduits. The air is circulated through the primary air conduit by a set of fans. A secondary air conduit extends along the cabinet and is positioned outside of the primary air conduit. The secondary air conduit has an outlet opening for directing air across the access opening of the cabinet. The outlet opening of the secondary air conduit is aligned with and positioned adjacent to the outlet opening of the primary air conduit. A unitary grid member extends across the outlet opening of the primary air conduit and the outlet opening of the secondary air conduit. Due to the temperature differential between the air emitted from the outlet openings there is normally a tendency for condensation to accumulate at the juncture of the two outlet openings. In order to minimize and substantially eliminate such condensation and any resulting frost buildup, in insulating member separates the two air conduits and is either in contact with or actually extended into the unitary grid structure.

摘要翻译： 具有至少两个出口空气管道的冷藏陈列柜，其具有覆盖这种管道的出口的单一格栅构件。 显示器壳体由具有用于容纳冷藏产品的内部显示空间的机柜形成。 主空气导管围绕机柜，并且在与柜体中的进入开口相邻的一端处具有出口开口，在其另一端处与入口开口相邻的入口开口。 主空气导管的入口和出口开口对准，使得离开出口的空气被引导穿过机柜的进入开口并被入口开口接收。 一组蒸发器盘管布置在主空气管道内，用于冷却通过这种管道的空气。 空气通过一组风扇通过主空气管道循环。 二次空气管道沿着机柜延伸并且位于主空气管道的外部。 二次空气管道具有用于引导空气穿过机柜的进入开口的出口。 二次空气管道的出口与第一空气管道的出口开口对准并邻近其定位。 整体网格构件延伸穿过主空气管道的出口开口和二次空气管道的出口。 由于从出口开口排出的空气之间的温度差异，通常会在两个出口开口的接合点处凝结积聚的倾向。 为了最小化并基本上消除这种冷凝和所产生的结霜，在绝缘构件中，两个空气导管分离，并与之接合或实际上延伸到整体网格结构中。

公开(公告)号：USRE31909E

公开(公告)日：1985-06-11

申请号：US543468

申请日：1983-10-19

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 ,  F25D2317/0684

摘要： An open top refrigerated display case having an ambient air automatic defrost system and a method of operating such a case. A single air conduit extends in a U-shaped formation along opposing side walls and the bottom wall of the display case. The air conduit has openings at both ends in the location of the upper portions of the side walls. Arranged within the air conduit is at least one reversible fan and a set of refrigeration coils. During a refrigeration cycle the fan circulates air through the air conduit in a first direction towards the refrigeration coils. When frost buildup within the display case has reached a certain level, the system is switched to a defrost cycle. During the defrost cycle, the fan circulates the air in the opposite direction through the air conduit and draws in ambient air from outside of the display case. Since such ambient air is of a higher temperature than the normally refrigerated air, it serves to defrost the system. The ambient air, after passing over the evaporator coils and through the air conduit, is expelled from the air conduit in a direction towards the outer side of the refrigerated case and away from the interior of the case.

公开(公告)号：US4424685A

公开(公告)日：1984-01-10

申请号：US256996

申请日：1981-04-24

申请人： Fayez F. Ibrahim

发明人： Fayez F. Ibrahim

IPC分类号： A47F3/04

CPC分类号： A47F3/0469

摘要： An automatically operated flexible barrier cover for the access openings of refrigerated display cabinets. The barrier cover limits the contact between the refrigerated air within the cabinet and the ambient air. The barrier cover can be moved over the access opening during non-customer use time periods when the retail food outlet is closed. The barrier cover can be arranged as a unitary assembly which can be manufactured and sold separately from the display cabinet as a retrofit device to effect energy savings.The flexible barrier cover can be stored in a reeled-up position or can be arranged as a folded flexible barrier which can be fanned out across the access opening. Various traction means are provided for moving the flexible barrier across the access opening.

摘要翻译： 一种用于冷藏展示柜进出口的自动操作的柔性防护罩。 防护罩限制机柜内的冷藏空气与环境空气之间的接触。 在零售食品出口关闭的非客户使用时间段期间，阻挡层可以移动进入开口。 阻挡罩可以被布置为整体组件，其可以作为改装装置与展示柜分开制造和销售以实现节能。 柔性防护罩可以被存放在卷绕位置，或者可以被布置为折叠的柔性屏障，该屏障可以跨越进入开口扇形。 提供了各种牵引装置，用于使柔性屏障穿过进入开口移动。

公开(公告)号：US4370867A

公开(公告)日：1983-02-01

申请号：US244959

申请日：1981-03-18

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 ,  F25D2317/0684

摘要： An open top refrigerated display case having an ambient air defrost system and a method of operating such display case, at least one air conduit extends in a U-shaped formation along opposing side walls and a bottom wall of the refrigerated display case. Each of the air conduits has an opening at both ends with such openings being located at upper portions of the side walls and in alignment so as to direct air across the access opening for recirculation through the air conduit during a refrigeration cycle of operation. Arranged within the primary air conduit is a set of refrigeration coils and at least one reversible fan for circulating air through such air conduit. During a refrigeration cycle of operation, the fan circulates air through the air conduit in a first direction through the refrigeration coils. During a defrost cycle of operation, the fan circulates air through the air conduit in the opposite direction and draws in ambient air from outside of the display case. During such defrost cycle of operation, the air leaving the air conduit is directed and supplied with a sufficient momentum so that such air travels along a path over the opposing side wall of the display case so that the air does not reenter the air conduit.

摘要翻译： 具有环境空气除霜系统的开顶冷藏展示柜和操作这种展示柜的方法，至少一个空气管道沿着冷藏展示柜的相对侧壁和底壁在U形地层中延伸。 每个空气管道在两端具有开口，其中这些开口位于侧壁的上部并且对准，以便在操作的制冷循环期间引导空气穿过进入开口以再循环通过空气管道。 在主空气管道内布置有一组制冷盘管和至少一个用于使空气通过这种空气管道循环的可逆风扇。 在操作的制冷循环期间，风扇通过空气管道沿第一方向循环通过制冷盘管。 在操作除霜循环期间，风扇以相反的方向使空气通过空气管道循环，并从显示壳体的外部吸入环境空气。 在这种除霜操作循环期间，离开空气管道的空气被引导并提供足够的动量，使得这样的空气沿着显示器壳体的相对侧壁上的路径移动，使得空气不再重新进入空气管道。

公开(公告)号：US4341082A

公开(公告)日：1982-07-27

申请号：US84858

申请日：1979-10-15

申请人： Fayez F. Ibrahim

发明人： Fayez F. Ibrahim

IPC分类号： A47F3/04 ,  F25D21/12

CPC分类号： A47F3/0447 ,  F25D21/125 ,  F25D2317/0684

摘要： An open top refrigerated display case having an ambient air automatic defrost system and a method of operating such a case. A single air conduit extends in a U-shaped formation extends around the case and has openings at both ends in the location of the upper portions of the side walls. At least one reversible fan and a set of evaporator coils are arranged within the air conduit. During a refrigeration cycle the fan circulates air through the air conduit in a first direction towards the evaporator coils. When frost buildup within the display case has reached a certain level, the system is switched to a defrost cycle of operation. During the defrost cycle, the fan circulates the air in the opposite direction through the air conduit and draws in ambient air from outside of the display case for defrosting the evaporator coils. The ambient air, after passing over the evaporator coils and through the air conduit, is expelled from the air conduit and directed along a path towards the outer side of the refrigerated case and away from the interior of the case.

摘要翻译： 一种具有环境空气自动除霜系统的开顶式冷藏展示柜和操作这种箱子的方法。 以U形形式延伸的单个空气导管围绕壳体延伸并且在侧壁的上部位置的两端具有开口。 至少一个可逆风扇和一组蒸发器盘管布置在空气管道内。 在制冷循环期间，风扇沿着第一方向将空气通过空气管道朝向蒸发器盘管循环。 当陈列柜内的霜冻达到一定水平时，系统切换到除霜操作周期。 在除霜循环期间，风扇通过空气管道沿相反方向循环空气，并从显示器外部的外部吸入环境空气，以对蒸发器盘管进行除霜。 环境空气在经过蒸发器盘管并通过空气管道之后从空气管道排出并且沿着朝向冷藏箱体的外侧的路径引导并远离壳体的内部。

公开(公告)号：US4337626A

公开(公告)日：1982-07-06

申请号：US226768

申请日：1981-01-21

申请人： Fayez F. Ibrahim

发明人： Fayez F. Ibrahim

IPC分类号： F25D21/06 ,  A47F3/04 ,  F25D21/12

CPC分类号： F25D21/125 ,  A47F3/0447

摘要： A well type open top refrigerated display case has a primary air conduit extending around the cabinet and main fans for circulating air through the primary conduit and across the open top of the cabinet in the form of an air curtain. A column extends upwardly from and above the well type region; defrost fans are located in a defrost conduit in the column. Defrost control means are provided for energizing the defrost fans at the start of a defrost cycle to draw ambient air from above the refrigerated display case into the upper portion of the defrost conduit at a higher pressure than the air pressure in the region of the open top; a portion of the higher pressure ambient air is directed out of the defrost conduit to collide with the air curtain flowing across the open top, the flow of the air curtain being thereby reversed and caused to flow over the top of and outside the display case. A further portion of ambient air is drawn downwardly by the main fans to flow through the primary conduit and assist in defrosting the coils.

摘要翻译： 井型开顶冷藏展示柜具有围绕机柜延伸的一次空气导管和主风扇，用于以空气幕的形式将空气循环通过主导管并跨过柜体的敞开的顶部。 柱从井型区域上方向上延伸; 除霜风扇位于列中的除霜管道中。 提供除霜控制装置，用于在除霜循环开始时给除霜风扇通电，以将空气从冷藏陈列柜的上方抽出到除霜管道的上部，压力高于开口区域内的空气压力 ; 较高压力环境空气的一部分被引导出除霜管道以与流过敞开的顶部的气帘碰撞，从而空气幕的流动被反转并且使其流过显示壳体的顶部和外部。 另外一部分环境空气被主风扇向下拉，以流过主导管并辅助除霜线圈。

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：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。