公开(公告)号：US4276755A

公开(公告)日：1981-07-07

申请号：US952612

申请日：1978-10-18

申请人： Arthur Perez ,  Fayez F. Abraham

发明人： Arthur Perez ,  Fayez F. Abraham

IPC分类号： F25B47/02 ,  F25B41/00 ,  F25B47/00

CPC分类号： F25B47/022 ,  F25B2341/0011 ,  F25B2400/075 ,  F25B2400/22

摘要： A gas defrost system comprising a heat exchange assembly located in close physical proximity with a branch conduit from the compressor discharge; the branch conduit leads, through a gas manifold, to the several remote evaporators comprising the refrigeration system. Liquid refrigerant is supplied to the heat exchanger from the liquid manifold and evaporated refrigerant is returned from the heat exchanger to the suction manifold. Refrigerant flow through the heat exchanger is controlled by an externally equalized expansion valve which has sensors connected to measure the compressor discharge pressure and the defrost gas temperature downstream of the heat exchange section. The expansion valve can be preset to maintain a desired amount of heat exchange so that the temperature of the defrost gas in the manifold will be maintained at or above a predetermined lower limit.

摘要翻译： 一种气体除霜系统，包括一个与来自压缩机排放口的分支导管紧密物理接近的热交换组件; 分支导管通过气体​​歧管引导到包括制冷系统的几个远程蒸发器。 液体制冷剂从液体歧管供应到热交换器，蒸发的制冷剂从热交换器返回到吸入歧管。 通过热交换器的制冷剂流量由外部均衡的膨胀阀控制，该膨胀阀具有连接的传感器，以测量压缩机排出压力和热交换部分下游的除霜气体温度。 可以预先设定膨胀阀以保持期望的热交换量，使歧管中的除霜气体的温度保持在预定的下限以上。

公开(公告)号：US4239518A

公开(公告)日：1980-12-16

申请号：US47869

申请日：1979-06-12

申请人： Melvin W. Steelman

发明人： Melvin W. Steelman

IPC分类号： A47F3/04 ,  F25D17/06 ,  F25D19/00 ,  F25D21/12 ,  F25D21/14 ,  F25D21/10

CPC分类号： A47F3/0408 ,  F25D17/06 ,  F25D19/00 ,  F25D21/125 ,  F25D21/14 ,  F25D2317/0655 ,  F25D2317/0665 ,  F25D2317/0681

摘要： A refrigerator having a storage area for holding and displaying goods to be refrigerated including means for defrosting the coils in the refrigeration system by exposing a portion of the system to the ambient atmosphere. An air flow path is defined in the refrigerator in conjunction with the refrigeration system to refrigerate the goods on display. A closure means which carries a portion of the system is integrated with baffle means to close at least part of the air flow when the closure means is moved to an open position. In the open position the coils are defrosted by exposure to the ambient air, while some cooler air is prevented by the baffle means from being drawn out of the refrigerator.

摘要翻译： 具有用于保持和显示要冷藏的货物的存储区域的冰箱，包括用于通过将系统的一部分暴露于周围大气来对制冷系统中的线圈进行除霜的装置。 冷冻机中与制冷系统一起限定空气流路，以冷藏显示器上的货物。 当闭合装置移动到打开位置时，承载系统的一部分的封闭装置与挡板装置集成以封闭至少一部分空气流。 在打开位置，线圈通过暴露于环境空气中被除霜，同时通过挡板装置阻止一些较冷的空气被从冰箱中取出。

公开(公告)号：US4023378A

公开(公告)日：1977-05-17

申请号：US601576

申请日：1975-08-01

申请人： Thomas E. Kennedy ,  Earl E. Butts ,  Melvin W. Steelman

发明人： Thomas E. Kennedy ,  Earl E. Butts ,  Melvin W. Steelman

IPC分类号： F25D17/08 ,  A47F3/04

CPC分类号： A47F3/0452

摘要： A combined refrigerated display case and walk-in cooler wherein an improved refrigeration system combines a single air circulation means and two distinct refrigeration units, a first refrigeration unit dispersing refrigerated air for a plurality of air curtains travelling across an access opening provided at the front of the display case portion of the combination, a second refrigeration unit dispersing refrigerated air rearwardly to the walk-in cooler portion of the combination. The front access opening provides unimpeded access to the refrigerated space of the display case. Support means are provided between the walk-in cooler portion and display case portion extending between a lower surface of the refrigeration system and the floor for carrying shelves associated with the refrigerated display case portion of the combination. Goods may be removed from the shelves by purchasers through the display case access opening and goods may be deposited thereon by suppliers through a rear access opening between the display case portion and the refrigerated walk-in cooler portion of the combination. A barrier such as a curtain or other protective means is also provided between the refrigerated display case portion and the walk-in cooler portion of the combination to environmentally separate the two sections or portions during normal usage. The refrigerated air forming the curtains in front of the refrigerated display space is recirculated into the walk-in cooler space after passing under the refrigerated display space.

摘要翻译： 一种组合的冷藏展示柜和步入式冷却器，其中改进的制冷系统结合了单个空气循环装置和两个不同的制冷单元，第一制冷单元将用于多个气帘的冷藏空气分散， 组合的显示器壳体部分，第二制冷单元将冷藏空气向后分散到组合的步入式冷却器部分。 前通道开口提供无阻碍地进入展示柜的冷藏空间。 在步入式冷却器部分和在制冷系统的下表面之间延伸的显示壳体部分之间提供支撑装置，用于承载与组合的冷藏陈列柜部分相关联的货架。 商品可以由购买者通过展示柜进口开口从货架上取出，货物可以通过展示柜部分和组合的冷藏步入式冷却器部分之间的后部进入开口在供应商上沉积。 在冷藏陈列柜部分和组合的步入式冷却器部分之间还设有诸如窗帘或其它保护装置的屏障，以在正常使用期间环境地分离两个部分或部分。 形成冷藏展示空间前方的窗帘的冷藏空气在通过冷藏陈列空间之后再循环进入步入冷却器空间。

公开(公告)号：USD172517S

公开(公告)日：1954-06-29

申请日：1954-02-11

申请人： Tyler Refrigeration Corporation

设计人： Sheldon Rwtter

公开(公告)号：US4457139A

公开(公告)日：1984-07-03

申请号：US361798

申请日：1982-03-25

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： A47F3/0447 ,  A47F3/0443 ,  F25D21/12 ,  F25D21/125 ,  F25D2317/0684

摘要： A refrigerated display case having an ambient air automatic defrost system and a method of operating such a case. The display case has an access opening in one wall for enabling products within the display section to be removed. The access opening can be either in the top of front wall of the display case. At least one air conduit extends in an approximately C-shaped formation around the display case. The air conduit has openings at both ends, with such openings being located on opposite sides of the access opening. 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 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 so as to move away from the interior of the case. An air flow control means is provided for accomplishing this purpose.

摘要翻译： 具有环境空气自动除霜系统的冷藏展示柜和操作这种情况的方法。 显示器壳体在一个墙壁上具有进入开口，用于使显示部分内的产品能够被移除。 进出口可以在展示柜的前壁的顶部。 至少一个空气管道以大致C形的形式围绕显示器壳体延伸。 空气管道在两端具有开口，这些开口位于进入开口的相对侧上。 在空气管道内布置有至少一个可逆风扇和一组制冷盘管。 在制冷循环期间，风扇沿着第一方向将空气通过空气管道循环到制冷盘管。 当陈列柜内的霜冻达到一定水平时，系统切换到除霜循环。 在除霜循环期间，风扇以相反的方向通过空气管道循环，并从显示壳体的外部吸入环境空气。 由于这种环境空气的温度高于通常的冷藏空气，所以它用于对系统进行除霜。 环境空气在经过蒸发器盘管并通过空气管道之后，沿着朝向冷藏箱外侧的方向从空气管道中排出，从而远离壳体的内部。 提供了一种用于实现该目的的气流控制装置。

公开(公告)号：US4367632A

公开(公告)日：1983-01-11

申请号：US261872

申请日：1981-05-08

申请人： Fayez F. Ibrahim ,  Elmer J. Subera ,  James E. Myers

发明人： Fayez F. Ibrahim ,  Elmer J. Subera ,  James E. Myers

IPC分类号： A47F3/04 ,  E05F15/12 ,  F25D21/12 ,  F25D23/02

CPC分类号： F25D23/028 ,  A47F3/0408 ,  E05F15/611 ,  F25D21/125 ,  E05Y2900/202

摘要： A door operating mechanism for use with refrigerated display cases in which provision is made for one or more circulated air bands and an air defrost means. The door operating mechanism functions to selectively create a gap between the barrier door and the associated access opening of the case to carry out defrosting and to also permit the gap to be closed by the application of outside force. A motion take-up means is provided within the door operating mechanism to permit closing of a door through the operation of a flexing means which is preferably a compression spring. Temporary closing of the door gap by customers and employees is operatively provided for by the door operating mechanism.

摘要翻译： 一种用于冷藏展示柜的门操作机构，其中为一个或多个循环空气带和空气除霜装置提供设备。 门操作机构用于选择性地在防护门和相关联的进入开口之间形成间隙以进行除霜，并且还允许间隙通过施加外力而封闭。 在门操作机构内提供运动吸收装置，以允许通过操作优选为压缩弹簧的弯曲装置来关闭门。 客户和员工临时关闭门间隙由门操作机构可操作地提供。

公开(公告)号：US4347710A

公开(公告)日：1982-09-07

申请号：US145750

申请日：1980-05-01

申请人： Fayez F. Ibrahim

发明人： Fayez F. Ibrahim

IPC分类号： A47F3/04 ,  F25D21/12 ,  F25D21/08

CPC分类号： A47F3/0408 ,  F25D21/125

摘要： A refrigerated display case having a display section within a cabinet and a movable door covering a front access opening to such display section. A refrigeration air conduit extends along the top, bottom and rear walls of the cabinet. The air conduit has an outlet opening and an inlet opening at opposing ends thereof with the openings being in alignment so that air leaving the outlet opening will be directed towards and received by the inlet opening thereby forming an air curtain across the front opening of the cabinet along the path inside the door. During a refrigeration cycle of operation of the display case, refrigerated air is circulated through the air conduit and a refrigeration mechanism arranged within the conduit so as to establish a refrigerated air band and a refrigerated air curtain across the front opening in the cabinet. During a defrost cycle of operation, the refrigeration mechanism is turned off and the door covering the front access opening is slightly opened. An ambient air conduit propels ambient air along the front of the display case during a defrost cycle so that the ambient air then can be drawn into the refrigeration air conduit and circulated through the conduit. Such ambient air serves to defrost the refrigeration mechanism and the interior of the refrigeration air conduit.

摘要翻译： 一种具有在柜内的显示部分的冷藏展示柜和一个覆盖到该显示部分的前进入口的活动门。 制冷空气导管沿机柜的顶壁，底壁和后壁延伸。 空气管道在其相对端处具有出口开口和入口，其开口处于对准状态，使得离开出口开口的空气将被引导入入口并被入口开口接纳，从而形成穿过柜体的前开口的气幕 沿着门内的路径。 在展示柜的操作的制冷循环期间，冷藏空气通过空气管道和布置在管道内的制冷机构循环，以便在机柜的前开口处建立冷藏空气带和冷藏空气幕。 在操作的除霜循环期间，制冷机构被关闭，并且覆盖前进入口的门略微打开。 环境空气管道在除霜循环期间沿着显示器壳体的前部推进环境空气，使得环境空气然后可以被吸入冷冻空气管道中并且通过导管循环。 这种环境空气用于对制冷机构和制冷空气管道的内部进行除霜。

公开(公告)号：US4341081A

公开(公告)日：1982-07-27

申请号：US70882

申请日：1979-08-29

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 ,  F25D21/12

摘要： An open front refrigerated display case having mechanisms for establishing an inner refrigerated air band encircling the display portion of the case and secondary air band also encircling the display portion and being positioned outside of the inner air band. An inner air conduit passes around the cabinet of the display case and has an outlet opening at one end of the access opening in the front of the cabinet and an inlet opening at the other end of the front access opening in the cabinet. A fan circulates air through this inner air conduit with the air leaving the outlet opening and being directed toward and received by the inlet opening of the conduit, thereby establishing an inner air band along with an inner air curtain across the access opening in the front of the cabinet. An evaporator coil arranged within the inner air conduit serves to refrigerate the air passing along the inner air band during a refrigeration cycle of operation. A secondary air conduit surrounds the inner air conduit within the cabinet and during a refrigeration cycle carries air which is cooler than ambient air, but unrefrigerated. A second fan is provided within this secondary air conduit for circulating air through the conduit and establishing a secondary air band and secondary curtain across the opening in the front of the cabinet. During a defrost cycle of operation, the evaporator coil is turned off and the direction of air flow through the inner air conduit is reversed and unrefrigerated air is caused to pass through the inner air conduit, thereby serving to defrost that conduit. During the defrost operation, the air flow through the secondary air conduit is either turned off or reversed in its flow direction.

摘要翻译： 具有用于建立环绕壳体的显示部分的内部冷气带并且还包围显示部分并且位于内部空气带外部的二次空气带的机构的开放式前部冷藏陈列柜。 内部空气管道绕过显示器壳体的机壳，并且在机柜前部的进入开口的一端具有出口开口，并且在机柜的前进入口的另一端具有入口。 风扇将空气循环通过该内部空气管道，空气离开出口开口并被导向并由导管的入口开口接收，从而在内部空气带与内部空气幕一起形成横跨前方的进入开口 内阁。 布置在内部空气管道内的蒸发器盘管用于在运行的制冷循环期间冷却沿着内部空气带通过的空气。 二次空气管道围绕机柜内的内部空气管道，并且在制冷循环期间承载比环境空气更冷却但未冷却的空气。 在该二次空气管道内设置有第二风扇，用于使空气循环通过管道，并在机柜前部的开口处建立二次空气带和次级帘。 在操作的除霜循环期间，蒸发器盘管被关闭，并且通过内部空气管道的空气流动的方向被反转，并且使未冷却的空气通过内部空气管道，从而用于对该管道进行除霜。 在除霜操作期间，通过二次空气管道的空气流在其流动方向上被关闭或反向。

公开(公告)号：US4326385A

公开(公告)日：1982-04-27

申请号：US202626

申请日：1980-10-31

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

摘要： A refrigerated display cabinet having air outlet ports in the top wall thereof for expelling ambient defrost air to the outside of the cabinet so that the air will not reenter the product display space. A baffle plate provided for blocking the passage of ambient defrost air into the top portion of the refrigerated air conduit during the defrost cycle from which it could flow into the product display space. A protective ambient air band is established across the access opening during the defrost cycle during which the flow of ambient defrost air is prevented from entering the internal cabinet product display space. The gate covering the air outlet port is used to mechanically control the closure of the baffle plate blocking the flow of ambient defrost air into the internal product display space. The operation of the display cabinet permits ambient air flow in the primary air conduit in the same direction during both the refrigeration and defrost cycles of operation so that only unidirectional fan motors are required in the cabinet.

摘要翻译： 一种冷藏展示柜，其顶壁具有出气口，用于将环境除霜空气排出到柜体的外部，使得空气不会重新进入产品展示空间。 挡板设置用于在除霜循环期间阻止环境除霜空气进入冷藏空气管道的顶部部分，从而可从中流入产品展示空间。 在除霜循环期间，通过进入开口建立保护性环境空气带，在此期间环境除霜空气的流动被阻止进入内部橱柜产品展示空间。 覆盖空气出口的门用于机械地控制挡板的封闭，阻止环境除霜空气流入内部产品展示空间。 在制冷和除霜操作期间，显示柜的操作允许在一次空气管道中的相同方向的环境空气流动，使得在机柜中仅需要单向的风扇马达。

公开(公告)号：US4299099A

公开(公告)日：1981-11-10

申请号：US6074

申请日：1979-01-24

申请人： James E. Myers ,  Tom E. Kennedy ,  Arthur Perey

发明人： James E. Myers ,  Tom E. Kennedy ,  Arthur Perey

IPC分类号： A47F3/04

CPC分类号： A47F3/0452 ,  A47F2003/066

摘要： A refrigeration system having an open front display portion and a rear storage portion. The display portion has a plurality of shelves that are accessible through an opening in the front of the display portion. Access to the shelves also can be obtained from the rear storage portion of the system. A cooling unit is provided that includes a fan and two sets of refrigerating coils. The cooling unit provides refrigerated air from one set of coils to an air conduit for establishing a primary air curtain across the front of the display portion. The refrigerated air from the other set of coils is supplied to an air conduit which in turn supplies the air to the storage portion. A second air curtain is also provided across the front of the display portion; this secondary air curtain extends along a path positioned towards the outside of the display portion with respect to the primary air curtain. A return path for the air from the primary and secondary air curtain is provided along the bottom of the display portion.

摘要翻译： 一种具有开放的前显示部分和后部存储部分的制冷系统。 显示部分具有可通过显示部分前部的开口接近的多个搁板。 也可以从系统的后部存储部分获得对货架的访问。 提供了包括风扇和两组制冷盘管的冷却单元。 冷却单元将冷却空气从一组线圈提供到空气管道，用于在显示部分的前部建立一次空气幕。 来自另一组线圈的冷藏空气被供应到空气管道，空气管道又将空气供应到存储部分。 第二气帘也设置在显示部分的前部; 该二次气帘沿着相对于一次气帘朝向显示部分的外部定位的路径延伸。 沿着显示部分的底部提供来自主气幕和副气帘的空气的返回路径。