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    • 1. 发明授权
    • Apparatus and method for head pressure control valve disabling for an
icemaker
    • 用于制冰机的头部压力控制阀禁用的装置和方法
    • US5937658A
    • 1999-08-17
    • US30534
    • 1998-02-24
    • William J. BlackMatthew W. AllisonMelvin A. BakerGary L. Van Riper
    • William J. BlackMatthew W. AllisonMelvin A. BakerGary L. Van Riper
    • F25B49/02F25C5/10
    • F25C5/10F25B49/027F25C2600/04Y10S62/17
    • An icemaker having a means for bypassing a head pressure control valve thereof depending upon the ambient air temperature surrounding a remotely located condenser of the icemaker. The method and apparatus involve a first bypass conduit which is coupled to an outlet of the condenser upstream of the head pressure control valve and a first bypass valve disposed in the first bypass conduit. A second bypass conduit is in communication with an inlet of the condenser and also with the head pressure control valve. A second bypass valve is disposed in the second bypass conduit. A thermostat controls each of the bypass valves such that the first bypass valve is closed and the second bypass valve opened when the sensed ambient air temperature around the condenser is below a predetermined temperature, to thereby permit normal operation of the head pressure control valve. When the ambient air temperature is at or above the predetermined temperature, the first bypass valve is opened and the second bypass valve is closed, which causes condensed refrigerant to bypass the head pressure control valve completely. The above-described arrangement permits a high set point of the head pressure control to build more heat in a compressor during the freeze cycle of the icemaker when the condenser is experiencing low ambient air temperature conditions, and further allows the head pressure control valve to be bypassed entirely when the ambient air conditions are relatively high during the freeze cycle, and the head pressure control valve is therefore not needed.
    • 一种制冰机,其具有根据围绕制冰机的位于远处的冷凝器周围的环境空气温度旁路头压力控制阀的装置。 该方法和装置包括第一旁路管道,其连接到头部压力控制阀上游的冷凝器的出口和设置在第一旁通管道中的第一旁通阀。 第二旁通管道与冷凝器的入口以及头部压力控制阀连通。 第二旁通阀设置在第二旁通管道中。 恒温器控制每个旁通阀,使得第一旁通阀关闭,并且当冷凝器周围的感测到的环境空气温度低于预定温度时第二旁通阀打开,从而允许头部压力控制阀的正常操作。 当环境空气温度等于或高于预定温度时,第一旁通阀打开并且第二旁通阀关闭,这使得冷凝的制冷剂完全绕过头部压力控制阀。 上述布置允许在冷凝器经历低的环境空气温度条件时,在制冰机的冷冻循环期间,头部压力控制的高设定点在压缩机中建立更多的热量,并且还允许头部压力控制阀为 在冷冻循环期间环境空气条件相对较高时完全旁路,因此不需要头部压力控制阀。
    • 2. 发明授权
    • Hot gas bypass system for an icemaker
    • 制冰机的热气旁路系统
    • US5794452A
    • 1998-08-18
    • US846860
    • 1997-05-01
    • William J. BlackMatthew W. AllisonMelvin A. BakerGary L. Van Riper
    • William J. BlackMatthew W. AllisonMelvin A. BakerGary L. Van Riper
    • F25B41/04F25B47/02F25C5/10
    • F25C5/10F25B41/04F25B47/022
    • An icemaker incorporating a hot gas bypass system for introducing a supplemental quantity of refrigerant from a condenser into a compressor of the icemaker during a harvest cycle. The system includes a harvest bypass valve disposed in a bypass conduit coupled between an input port of the compressor and the inlet of a remotely disposed condenser. The harvest bypass valve is opened by a system controller of the icemaker during a harvest cycle which allows refrigerant in the condenser to migrate back into the input port of the compressor during the harvest cycle. In this manner, it can be insured that a sufficient quantity of refrigerant is available to carry out the harvest cycle. The adding of a supplemental quantity of refrigerant is further accomplished through a single valve and does not add appreciably to the overall cost or complexity of the icemaker.
    • 一种制冰机,其包括热气旁路系统,用于在收集循环期间将补充量的制冷剂从冷凝器引入制冰机的压缩机。 该系统包括设置在联接在压缩机的输入端口和远程设置的冷凝器的入口之间的旁路管道中的收获旁路阀。 收获旁路阀在收获循环期间由制冰机的系统控制器打开,这允许冷凝器中的制冷剂在收获循环期间迁移回压缩机的输入端口。 以这种方式,可以确保足够量的制冷剂可用于进行收获循环。 通过单个阀进一步实现补充量的制冷剂的添加,并且不会明显地增加制冰机的整体成本或复杂性。
    • 3. 发明授权
    • Fault restart method
    • 故障重启方法
    • US5901561A
    • 1999-05-11
    • US873633
    • 1997-06-12
    • Matthew W. AllisonWilliam J. BlackChristopher J. Wilson
    • Matthew W. AllisonWilliam J. BlackChristopher J. Wilson
    • F25C1/10F25C1/12F25C1/24G05B9/03G05B19/042G05B23/02F25C1/00
    • G05B23/0262F25C1/12G05B19/0428F25C2600/04F25C2700/04G05B2219/24198
    • A fault restart routine for an icemaker having a microprocessor-based system controller. The fault restart routine provides at least a limited number of attempts at automatically restarting the icemaker after a shutdown has occurred because of a detected fault condition. If the fault condition is not a water inlet fault, the routine waits a first predetermined period of time before attempting to restart the icemaker. If the fault is detected as being a water inlet fault, then the system controller waits for a second predetermined time period before restarting the icemaker. If after restarting the icemaker, the icemaker completes one complete cycle of operation (i.e., a complete FREEZE cycle and a complete HARVEST cycle), then the fault restart routine is exited and a previously generated fault code is cleared. If the icemaker does not full one complete cycle of operation within a predetermined number of restart tries, then the system controller generates a fault signal to the LED display and no further attempts at restarting the icemaker are made. The method alleviates the need for an operator or attendant to manually attempt to restart the icemaker in the event a fault condition occurs, which fault condition may only be temporary and/or due to environmental conditions such as power surges or brown-outs, and which does not require operator intervention. The method further protects the icemaker by automatically shutting down the icemaker if after the predetermined number of restart tries the fault condition is still present.
    • 具有基于微处理器的系统控制器的制冰机的故障重启程序。 由于检测到的故障状况,故障重启程序至少提供了在关闭发生后自动重新启动制冰机的尝试次数。 如果故障条件不是进水口故障,则程序在尝试重新启动制冰机之前等待第一预定时间段。 如果检测到故障是进水故障,则系统控制器在重新启动制冰机之前等待第二预定时间段。 如果在重新启动制冰机后,制冰机完成一个完整的操作周期(即完全冻结循环和完整的HARVEST循环),则退出故障重启程序,并清除先前生成的故障代码。 如果制冰机在预定次数的重新启动尝试中没有完成一个完整的循环,则系统控制器向LED显示器产生故障信号,并且不再进行重新启动制冰机的尝试。 该方法减轻了操作员或服务员在发生故障情况的情况下手动尝试重新启动制冰机的需要,该故障状况可能仅仅是临时的和/或由于诸如电源浪涌或掉电的环境条件而导致的,以及哪个 不需要操作员干预。 如果在预定次数的重启尝试故障状态仍然存在之后,该方法还通过自动关闭制冰机来保护制冰机。
    • 5. 发明授权
    • Method for preventing formation of ice slush in an ice maker
    • 防止在制冰机中形成冰雪的方法
    • US5582018A
    • 1996-12-10
    • US520623
    • 1995-08-30
    • William J. BlackMark A. McKinneyMatt W. Allison
    • William J. BlackMark A. McKinneyMatt W. Allison
    • F25C1/12
    • F25C1/12F25C2700/04
    • A method for preventing the formation of icy slush within the sump of an ice maker. The method includes the steps of monitoring the temperature of the water being circulated through the ice maker and detecting when the temperature reaches about 32.degree. F. When the water reaches about 32.degree. F., the water pump is turned-off to allow residual water on evaporator plates of the ice maker to freeze and form ice crystals thereon. The water pump is turned-off for a predetermined period of time sufficient to allow the residual water remaining on the evaporator plates to freeze, which is preferably about 40 seconds, before it is turned back on. Thereafter, circulating water gradually freezes to the ice crystals formed on the evaporator plates. This prevents the water in the sump from cooling below about 32.degree. F. which would cause an icy slush to form in the sump. The above cycle is repeated after ice is harvested from the evaporator plates.
    • 一种防止在制冰机的贮槽内形成冰冷的方法。 该方法包括监测通过制冰机循环的水的温度并检测何时达到32°F的步骤。当水达到约32°F时,关闭水泵以允许残留水 在制冰机的蒸发板上冷冻并在其上形成冰​​晶。 关闭水泵预定的一段时间,足以允许残留在蒸发器板上的剩余水在其被重新打开之前冻结,优选约40秒。 此后,循环水逐渐冻结在蒸发器板上形成的冰晶上。 这样可防止油底壳中的水冷却至低于约32°F,这将导致在油底壳中形成冰冷的泥浆。 在从蒸发器板收获冰后,重复上述循环。
    • 7. 发明授权
    • Beverage dispensing system with a head capable of dispensing plural different beverages
    • 饮料分配系统,具有能够分配多种不同饮料的头部
    • US07828175B2
    • 2010-11-09
    • US11118535
    • 2005-04-29
    • Timothy W. BethuyWilliam J. BlackBrian T. CahillRonald SchillingPaul NovotnyFabio NebbiaGiovanni Perucca
    • Timothy W. BethuyWilliam J. BlackBrian T. CahillRonald SchillingPaul NovotnyFabio NebbiaGiovanni Perucca
    • B67D7/74
    • B01F15/026B01F3/08B01F5/0077B67D1/0021B67D1/0044B67D1/0081B67D1/1272B67D7/06B67D7/74Y10T137/0385
    • A beverage dispensing system with a base to which a dispensing head is removably attached without additional fasteners, wherein beverage forming liquids are supplied through a plurality of separate conduits in the base. Each base conduit has a normally closed valve that normally blocks fluid flow. The dispensing head has at least one passageway that receives liquid from an associated one of the base conduits. A projection associated with each dispensing head passageway opens the associated conduit valve to allow fluid flow from the base to the head. Dispensing valves in the dispensing head are independently accountable to regulate the dispensing of the beverage. In one version of the invention, four liquids are supplied to the dispensing head through the conduits, namely two liquid concentrates; carbonated water; and non-carbonated water. By selective opening of the dispensing valves, a plurality of beverages are formed from combinations of one or more of the liquids. A dispensing head for dispensing at least one carbonated fluid includes an inlet opening and an outlet opening at each end of a passage extending through a body, the inlet opening having a smaller cross-sectional area than the outlet opening.
    • 一种具有底座的饮料分配系统,其中分配头可移除地附接到其上,而没有附加的紧固件,其中饮料形成液体通过基座中的多个分离的管道供应。 每个底部管道具有通常阻塞流体流动的常闭阀。 分配头具有至少一个从相关联的一个基管导管接收液体的通道。 与每个分配头通道相关联的突起打开相关联的导管阀,以允许流体从基部流到头部。 分配头中的分配阀独立地负责调节饮料的分配。 在本发明的一个方案中,通过导管,即两个液体浓缩物将四种液体供应到分配头部; 碳酸水; 和非碳酸水。 通过选择性地打开分配阀,由一种或多种液体的组合形成多种饮料。 用于分配至少一个碳酸液体的分配头包括在通过主体的通道的每个端部处的入口和出口,所述入口具有比出口开口更小的横截面面积。