公开(公告)号：USD252123S

公开(公告)日：1979-06-19

申请号：US826947

申请日：1977-08-22

申请人： William Searcy

设计人： William Searcy

公开(公告)号：USD252122S

公开(公告)日：1979-06-19

申请号：US826946

申请日：1977-08-22

申请人： William Searcy

设计人： William Searcy

公开(公告)号：US4144720A

公开(公告)日：1979-03-20

申请号：US790654

申请日：1977-04-25

申请人： Elmer J. Subera ,  Melvin W. Steelman

发明人： Elmer J. Subera ,  Melvin W. Steelman

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

CPC分类号： F25D21/125 ,  A47F3/0447 ,  F25D21/12

摘要： An improved upright open front refrigerated display cabinet having primary and secondary air flow conduits, in which air flow directing means are provided for selectively drawing ambient air into the secondary air band conduit during a defrost cycle and for substantially preventing ambient air from entering the secondary conduit during a refrigeration cycle and for directing the flow of air through the secondary conduit in a first direction during the refrigeration cycle and in a second direction, substantially opposite the first direction, during the defrost cycle. Fans are provided in each of the primary and secondary conduits; the direction of air flow in the primary conduit remains constant at all times, during both refrigeration and defrost cycles. The secondary band fans propel air in a first direction (codirectional with air flow in the primary conduit) during the refrigeration cycle and in a second direction, substantially opposite the first direction during the defrost cycle whereby the ambient air is mixed with air propelled by primary fans in the primary conduit. Finally, means are provided for diverting air from the secondary conduit to the primary conduit during the defrost cycle and for substantially preventing the diversion of air from the secondary conduit to the primary conduit during the refrigeration cycle.

摘要翻译： 一种改进的立式敞开式前冷藏展示柜，其具有主空气和二次空气流动导管，其中设置有空气流引导装置，用于在除霜循环期间选择性地将环境空气吸入二次空气带导管，并且基本上防止环境空气进入二次管道 在制冷循环期间，并且在除霜循环期间，在制冷循环期间和在与第一方向基本相反的第二方向上，沿第一方向引导空气流通过次级管道。 每个主管道和二次管道中均设有风扇; 在制冷和除霜循环期间，主管道中的空气流动方向始终保持恒定。 次级带风扇在制冷循环期间沿第一方向（在主管道中与空气流同向地）推进空气，并且在除霜循环期间基本上与第一方向相反的第二方向推进空气，由此环境空气与由主要推进的空气混合 风扇在主要渠道。 最后，提供了用于在除霜循环期间将空气从次级管道转移到主管道的装置，并且用于在制冷循环期间基本上防止空气从次级管道转移到主管道。

公开(公告)号：US4117697A

公开(公告)日：1978-10-03

申请号：US764157

申请日：1977-01-31

申请人： James E. Myers ,  Tom E. Kennedy

发明人： James E. Myers ,  Tom E. Kennedy

IPC分类号： F25D17/08 ,  A47F3/04 ,  F24F9/00

CPC分类号： A47F3/0452

摘要： A commercial refrigerator, having an open front display section and a rear storage section in which first air circulating fans draw air from the storage section and propells it through refrigeration coils to a bifurcated conduit for which directs at least some refrigerated air propelled by the first fans through the refrigeration coils along a first path directly into the storage section and for directing other refrigerated air propelled by the first fans through the coils along a second path directly across the open front of the display section to form an inner air curtain; return fans are provided for directing the downstream end of the inner air curtain along the floor of the display section and into the storage section; a second set of air circulating fans are provided in a further conduit for directing air around the exterior of the storage and display sections and across the access opening to form an outer air curtain; and a divider is provided which separates the display and storage sections, the divider containing an access opening for communicating the storage and display sections.

摘要翻译： 一种商用冰箱，其具有开放的前部显示部分和后部存储部分，其中第一空气循环风扇从所述存储部分抽吸空气并将其推进通过制冷盘管到分叉的导管，所述分叉管道引导由所述第一风扇推动的至少一些冷藏空气 通过制冷盘管沿着第一路径直接进入储存部分，并将第一风扇所驱动的其他冷藏空气沿第二路径引导通过直接穿过显示部分的开放前部的第二路径，以形成内部空气幕; 返回风扇被设置用于沿着显示部分的地板引导内部空气幕的下游端并进入存储部分; 第二组空气循环风扇设置在另外的导管中，用于引导空气围绕存储和显示部分的外部并且穿过进入开口以形成外部空气幕; 并且提供分隔器，其分隔显示和存储部分，分隔器包含用于传送存储和显示部分的访问开口。

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：US4457138A

公开(公告)日：1984-07-03

申请号：US343931

申请日：1982-01-29

申请人： Edward E. Bowman

发明人： Edward E. Bowman

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

CPC分类号： F25B49/02 ,  F25B2400/075 ,  F25B2400/16 ,  F25B2400/22 ,  Y10S62/17

摘要： A closed circuit refrigeration system includes a compressor, a remote condenser coupled to the output of the compressor, a receiver tank coupled downstream of the condenser means, and one or more evaporators coupled between the receiver and compressor return. A bypass conduit is coupled between the condenser output and receiver input at one end and between the receiver output and evaporator input at the other end; and a temperature controlled valve selectively controls the flow of refrigerant through the bypass conduit as a function of the temperature of refrigerant at the condenser output. A check valve in the condenser output conduit prevents backflow of refrigerant during periods of low condenser pressure. A method of operating a closed circuit refrigeration system is included in which a receiver tank bypass line is controlled responsive to the condition of the refrigerant in the condenser output.

摘要翻译： 闭路制冷系统包括压缩机，耦合到压缩机的输出的远程冷凝器，耦合在冷凝器装置下游的接收罐和耦合在接收器和压缩机返回之间的一个或多个蒸发器。 旁路管道在一端处于冷凝器输出端和接收器输入端之间，另一端连接在接收器输出端和蒸发器输入端之间; 并且温度控制阀根据冷凝器输出处的制冷剂的温度选择性地控制通过旁通管道的制冷剂的流动。 冷凝器输出管道中的止回阀可防止制冷剂在低冷凝器压力期间回流。 包括操作闭路制冷系统的方法，其中响应于冷凝器输出中的制冷剂的状态来控制接收罐旁路管线。

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。