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    • 3. 发明授权
    • Method of operating a refrigerated merchandiser system
    • 操作冷藏商品销售系统的方法
    • US06298673B1
    • 2001-10-09
    • US09652353
    • 2000-08-31
    • Kwok Kwong FungRobert Hong Leung ChiangEugene Duane Daddis, Jr.
    • Kwok Kwong FungRobert Hong Leung ChiangEugene Duane Daddis, Jr.
    • F25D2112
    • F25B47/02F25B39/02F25B41/043F25B41/062F25B2347/023F25B2400/22F25B2700/1933F25B2700/2117F25D21/04
    • A refrigerated merchandiser system (10) includes a compressor (20), a condenser (30), a display case (100) having an evaporator (40), an expansion device (50), and an evaporator pressure control device (60) connected in a closed refrigerant circuit via refrigerant lines (12, 14, 16 and 18). The evaporator pressure control device (60) operates to maintain the pressure in the evaporator at a set point pressure so as to maintain the temperature of the refrigerant expanding from a liquid to a vapor within the evaporator (40) at a desired temperature. A controller (90) operatively associated with the evaporator pressure control device (60) maintains the set point pressure at a first pressure for the refrigerant equivalent to a first refrigerant temperature during a first refrigeration mode and at a second pressure for the refrigerant equivalent to a second refrigerant temperature about 2 to about 12 degrees warmer than the first temperature during a second refrigerant mode. The controller (90) sequences operation between said first refrigeration mode and said second refrigeration mode.
    • 一种冷藏商品销售系统(10)包括压缩机(20),冷凝器(30),具有蒸发器(40)的展示柜(100),膨胀装置(50)和与之连接的蒸发器压力控制装置 在通过制冷剂管线(12,14,16和18)的封闭的制冷剂回路中。 蒸发器压力控制装置(60)操作以将蒸发器中的压力保持在设定点压力,以便将制冷剂的温度从蒸发器(40)内的液体膨胀到蒸气在期望的温度。 与蒸发器压力控制装置(60)可操作地相关联的控制器(90)将设定点压力保持在与第一制冷模式期间的第一制冷剂温度相当的制冷剂的第一压力,并且在第二压力下将制冷剂等效于 第二制冷剂温度在第二制冷剂模式期间比第一温度加热约2至约12度。 控制器(90)对所述第一制冷模式和所述第二制冷模式之间的操作进行排序。
    • 7. 发明授权
    • Refrigerated merchandiser system
    • 冷藏商品系统
    • US06311512B1
    • 2001-11-06
    • US09573308
    • 2000-05-18
    • Kwok Kwong FungEugene Duane Daddis, Jr.Robert Hong Leung Chiang
    • Kwok Kwong FungEugene Duane Daddis, Jr.Robert Hong Leung Chiang
    • F25D2100
    • F25B41/043F25B39/02F25B41/062F25B2400/22F25D21/04
    • A refrigerated merchandiser system (10) includes a compressor (20), a condenser (30), a display case (100) having an evaporator (40), an expansion device (50) and an evaporator pressure control device (60) connected in a closed refrigerant circuit via refrigerant lines (12, 14, 16 and 18). The evaporator pressure control device (60) operates to maintain the pressure in the evaporator at a predetermined pressure so as to maintain the temperature of the refrigerant expanding from a liquid to a vapor within the evaporator (40) in the range of about 27 degrees F to about 32 degrees F. The evaporator (40) has a fin and tube heat exchanger coil having a relatively high fin density of at least 5 fins per inch, and most advantageously in the range of 6 to 15 fins per inch.
    • 冷藏商品销售系统(10)包括压缩机(20),冷凝器(30),具有蒸发器(40)的展示柜(100),膨胀装置(50)和蒸发器压力控制装置(60) 通过制冷剂管线(12,14,16和18)的封闭的制冷剂回路。 蒸发器压力控制装置(60)操作以将蒸发器中的压力保持在预定压力,以便使制冷剂的温度从蒸发器(40)内的液体膨胀至蒸汽的温度在约27华氏度 蒸发器(40)具有翅片和管式热交换器盘管,其翅片密度相对高于每英寸至少5个翅片,并且最有利地在每英寸6至15个翅片的范围内。
    • 8. 发明申请
    • DISPLAY CASE INCLUDING HEAT EXCHANGER FOR REDUCING RELATIVE HUMIDITY
    • 显示器包括用于减少相对湿度的热交换器
    • US20100236752A1
    • 2010-09-23
    • US12675710
    • 2007-09-28
    • Kwok Kwong Fung
    • Kwok Kwong Fung
    • F25B29/00F25D11/00
    • A47F3/0443
    • A refrigerated case includes a housing including an interior display volume and a heat exchanger. The heat exchanger includes a circuit defined by a heat exchanger section including a plurality of tubes that define a flow path, a reheat section including a reheat tube, and a connecting tube fluidly connecting the flow path of the heat exchanger section with the reheat tube. Air flows over the plurality of tubes of the heat exchanger section and rejects heat to a refrigerant flowing through the plurality of tubes to heat the refrigerant. The heated refrigerant then flows through the reheat tube. As the air passes over the reheat tube, the air accepts heat from the heated refrigerant flowing through the reheat tube.
    • 冷藏箱包括包括内部显示体积和热交换器的壳体。 热交换器包括由包括限定流路的多个管的热交换器部分,包括再热管的再热部分和将热交换器部分的流动路径与再热管流体连接的连接管限定的回路。 空气流过热交换器部分的多个管,并且将热量排除到流过多个管的制冷剂以加热制冷剂。 然后加热的制冷剂流过再热管。 当空气通过再热管时,空气从流经再热管的受热制冷剂接受热量。
    • 9. 发明申请
    • SECONDARY AIRFLOW DISTRIBUTION FOR A DISPLAY CASE
    • 用于显示器的二次气流分配
    • US20090205351A1
    • 2009-08-20
    • US12374406
    • 2006-10-26
    • Kwok Kwong Fung
    • Kwok Kwong Fung
    • A47F3/04F24F9/00
    • A47F3/0447
    • A display case cools and displays products. A first fan system circulates cool air through the display case. The cool air is directed downwardly along a front of the display case to form a primary air curtain. A second fan system circulates ambient air to generate a secondary air curtain. The secondary air curtain is located between the primary air curtain and the outside environment, trapping the primary air curtain near an interior display volume of the display case. Each end of the second fan system is several inches shorter than the display case to allow for case to case attachment. The second fan system includes a louver near each of the side walls and a front of the second fan system. Each louver includes a plurality of slanted panels. The louvers direct the ambient air towards the side walls of the display case to improve the secondary discharge air velocity in a front corner area of the display case.
    • 展示柜冷却并显示产品。 第一个风扇系统将冷气循环通过显示屏。 冷空气沿着显示器壳体的前部向下引导以形成一次空气幕。 第二风扇系统循环环境空气以产生二次气帘。 二次气帘位于主气帘和外部环境之间,将主气幕捕获在显示器壳体的内部显示体积附近。 第二风扇系统的每个端部比显示器壳体短几英寸,以允许壳体附接。 第二风扇系统包括在每个侧壁附近的百叶窗和第二风扇系统的前部。 每个百叶窗包括多个倾斜面板。 百叶窗将环境空气引向显示壳体的侧壁,以改善显示壳体的前角区域中的二次排出空气速度。
    • 10. 发明授权
    • Display case including heat exchanger for reducing relative humidity
    • 显示箱包括减少相对湿度的换热器
    • US08910488B2
    • 2014-12-16
    • US12675710
    • 2007-09-28
    • Kwok Kwong Fung
    • Kwok Kwong Fung
    • F25D17/06A47F3/04
    • A47F3/0443
    • A refrigerated case includes a housing including an interior display volume and a heat exchanger. The heat exchanger includes a circuit defined by a heat exchanger section including a plurality of tubes that define a flow path, a reheat section including a reheat tube, and a connecting tube fluidly connecting the flow path of the heat exchanger section with the reheat tube. Air flows over the plurality of tubes of the heat exchanger section and rejects heat to a refrigerant flowing through the plurality of tubes to heat the refrigerant. The heated refrigerant then flows through the reheat tube. As the air passes over the reheat tube, the air accepts heat from the heated refrigerant flowing through the reheat tube.
    • 冷藏箱包括包括内部显示体积和热交换器的壳体。 热交换器包括由包括限定流路的多个管的热交换器部分,包括再热管的再热部分和将热交换器部分的流动路径与再热管流体连接的连接管限定的回路。 空气流过热交换器部分的多个管,并且将热量排除到流过多个管的制冷剂以加热制冷剂。 然后加热的制冷剂流过再热管。 当空气通过再热管时,空气从流经再热管的受热制冷剂接受热量。