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公开(公告)号：US06631621B2
公开(公告)日：2003-10-14
申请号：US10187459
申请日：2002-07-01
申请人： David J. VanderWoude , Herman H. Viegas , Jayaram Seshadri , Joseph Louis Glentz , Bryan Edward Schwichtenberg , J. J. Shaw
发明人： David J. VanderWoude , Herman H. Viegas , Jayaram Seshadri , Joseph Louis Glentz , Bryan Edward Schwichtenberg , J. J. Shaw
IPC分类号： F25D1702
CPC分类号： B60H1/00014 , B60H1/3202 , F17C7/04 , F17C13/026 , F17C2201/0109 , F17C2201/035 , F17C2201/056 , F17C2205/0326 , F17C2221/013 , F17C2221/014 , F17C2221/033 , F17C2223/0161 , F17C2223/033 , F17C2227/0313 , F17C2227/0337 , F17C2250/032 , F17C2250/0439 , F17C2250/0626 , F17C2250/0631 , F17C2250/0636 , F17C2260/031 , F17C2270/0171 , F25D3/105 , F25D17/06 , F25D19/003 , F25D29/001 , F25D29/003 , F25D2700/02 , G05D23/1931
摘要： A method of temperature control in a cryogenic temperature control apparatus comprises providing a heat exchanger in thermal communication with an air-conditioned space. The heat exchanger includes an air inlet and an evaporator coil having an outlet. The method further comprises providing a first temperature sensor being operatively coupled to a controller, measuring the temperature in the outlet and sending the temperature in the outlet to the controller, providing a second temperature sensor being operatively coupled to the controller, measuring the temperature in the air inlet, and sending the temperature in the air inlet to the controller, and providing a plurality of temperature control values. The flow of cryogen from a storage tank to the evaporator coil is altered each time the temperature in the outlet passes one of a first plurality of temperature control values and each time the temperature in the air inlet passes one of a second plurality of temperature control values.
摘要翻译： 一种低温温度控制装置中的温度控制方法包括提供与空调空间热连通的热交换器。 热交换器包括空气入口和具有出口的蒸发器盘管。 该方法还包括提供可操作地耦合到控制器的第一温度传感器，测量出口中的温度并将出口中的温度发送到控制器，提供可操作地耦合到控制器的第二温度传感器， 空气入口，并将空气入口中的温度传送到控制器，并提供多个温度控制值。 每当出口温度通过第一多个温度控制值中的一个时，每当空气入口中的温度通过第二多个温度控制值中的一个时，冷冻剂从储罐到蒸发器盘管的流动被改变 。
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公开(公告)号：US06609382B2
公开(公告)日：2003-08-26
申请号：US10162436
申请日：2002-06-04
申请人： David J. Vander Woude , Herman H. Viegas , Jayaram Seshadri , Joseph Louis Glentz , Bryan Edward Schwichtenberg , William Ehrich Stuart
发明人： David J. Vander Woude , Herman H. Viegas , Jayaram Seshadri , Joseph Louis Glentz , Bryan Edward Schwichtenberg , William Ehrich Stuart
IPC分类号： F17C902
CPC分类号： F17C13/026 , F17C7/04 , F17C13/02 , F17C13/025 , F17C2221/013 , F17C2221/014 , F17C2223/0161 , F17C2223/033 , F17C2250/032 , F17C2250/036 , F17C2250/043 , F17C2250/0439 , F17C2250/0631 , F17C2250/0694 , F17C2260/031 , F17C2270/0171 , F25D17/06 , F25D29/001 , F25D29/003 , F25D2700/14
摘要： A method of temperature control in a cryogenic system, wherein the system includes a cryogenic tank. The method comprises providing a motor speed sensor which determines a motor speed, providing a pressure sensor which determines a cryogenic pressure, providing a temperature sensor in the conditioned space which measures a temperature within the conditioned space, providing a deprived integral region, and generating an overriding control signal at the proportional-integral-derivative controller when the temperature and the pressure are beyond a temperature set point and a pressure set point.
摘要翻译： 一种在低温系统中的温度控制方法，其中该系统包括一个低温罐。 该方法包括提供确定电动机速度的电动机速度传感器，提供确定低温压力的压力传感器，在调节空间中提供温度传感器，测量调节空间内的温度，提供被剥夺的整体区域，并产生 当温度和压力超过温度设定点和压力设定点时，比例积分微分控制器上的超控制信号。
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公开(公告)号：US06698212B2
公开(公告)日：2004-03-02
申请号：US10185757
申请日：2002-06-27
IPC分类号： F17C902
CPC分类号： B60H1/3202 , F17C7/04 , F17C13/026 , F17C2201/0109 , F17C2201/035 , F17C2201/056 , F17C2205/0326 , F17C2221/013 , F17C2221/014 , F17C2221/033 , F17C2223/0161 , F17C2223/033 , F17C2227/0313 , F17C2227/0337 , F17C2250/032 , F17C2250/0439 , F17C2250/0626 , F17C2250/0631 , F17C2250/0636 , F17C2260/031 , F17C2270/0171 , F25D3/105 , F25D17/06 , F25D29/001 , F25D29/003 , F25D2700/02 , F25D2700/10 , G05D23/1931
摘要： A cryogenic temperature control apparatus comprises a storage tank housing a quantity of cryogenic fluid, a housing defining a conditioned space, and a heat exchanger in thermal communication with the conditioned space. A first flow path fluidly connects the storage tank and the heat exchanger. A first valve is positioned along the first flow path to selectively fluidly seal the first flow path between the storage tank and the heat exchanger. A second flow path fluidly connects the storage tank and the heat exchanger. A second valve is positioned along the second flow path to selectively fluidly seal the second flow path between the storage tank and the heat exchanger.
摘要翻译： 低温温度控制装置包括容纳一定数量的低温流体的容器，限定空间的壳体和与调节空间热连通的热交换器。 第一流路将储罐和热交换器流体连接。 第一阀沿着第一流动路径定位，以选择性地流体地密封储罐和热交换器之间的第一流动路径。 第二流路将储罐和热交换器流体连接。 第二阀沿着第二流动路径定位以选择性地流体地密封存储罐和热交换器之间的第二流动路径。
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4.发明授权Environmentally friendly method and apparatus for cooling a temperature controlled space 有权用于冷却温度控制空间的环保方法和装置公开(公告)号：US06895764B2
公开(公告)日：2005-05-24
申请号：US10428717
申请日：2003-05-02
申请人： Herman H. Viegas , Jayaram Seshadri
发明人： Herman H. Viegas , Jayaram Seshadri
IPC分类号： B60P3/20 , B60H1/00 , F25B19/00 , F25D3/10 , F25D11/00 , F25D16/00 , F25D29/00 , F17C9/02 , F25D15/00
CPC分类号： F25D3/105 , B60H1/00257 , F25D29/003 , Y02T10/88
摘要： An apparatus and a method for conditioning air in a plurality of spaced apart and thermally separated conditioned spaces with a cryogenic temperature control apparatus. The apparatus includes a storage tank housing a cryogen, an evaporator coil being selectively moveable into and out of thermal communication with the plurality of conditioned spaces for alternately conditioning air in the plurality of conditioned spaces, and a flow path fluidly connecting the storage tank and the evaporator coil.
摘要翻译： 一种利用低温温度控制装置调节多个间隔和热分离的调节空间中的空气的装置和方法。 该装置包括容纳冷冻剂的储存罐，蒸发器盘管可以选择性地与多个调节空间进行热连通，以便交替地调节多个调节空间中的空气，以及流体连接储罐和 蒸发器盘管。
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公开(公告)号：US4706468A
公开(公告)日：1987-11-17
申请号：US36539
申请日：1987-04-09
CPC分类号： B60H1/3232 , F25B13/00 , F25B47/022 , F25B5/00 , F25D11/003 , F25B2313/009 , F25B2313/023 , F25B2313/0292 , F25B2400/05 , F25B2400/16 , F25B2600/2523 , F25B2700/1933
摘要： A compartmentalized transport refrigeration system, and method of operating same, in which a host refrigeration unit controls the temperature of the air in a front compartment of a trailer, and a remote evaporator unit controls the temperature of the air in a rear compartment. In order to increase the heating and cooling capacity of the remote evaportor, the host unit is prevented from going into a heating mode in response to predetermined conditions, and more, or all in certain instances, of the discharge gas from the host compressor is made available for the remote evaporator.
摘要翻译： 一种分区式运输制冷系统及其操作方法，其中主机制冷单元控制拖车前隔室中的空气温度，远程蒸发器单元控制后室中空气的温度。 为了提高远程蒸发器的加热和冷却能力，主机单元可以响应于预定条件而被阻止进入加热模式，并且在某些情况下，甚至在某些情况下，主机压缩机的排放气体都被制成 适用于远程蒸发器。
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公开(公告)号：US4685306A
公开(公告)日：1987-08-11
申请号：US915601
申请日：1986-10-06
CPC分类号： B60H1/3232 , F25B13/00 , F25B47/022 , F25B5/00 , F25D11/003 , F25D29/003
摘要： A compartmentalized transport refrigeration system, and method of operating same, in which a host refrigeration unit controls the temperature of the air in a front compartment of a trailer, and a remote evaporator unit controls the temperature of the air in a rear compartment. In order to increase the heating capacity of the remote evaporator, the host's hot gas line is selectively controlled to enable all of the hot gas from the compressor to be directed to the remote evaporator when the host unit is in null. The host unit can only heat when the remote unit is in null. In order to increase the cooling capacity of the remote unit, the host's liquid line in selectively controlled to enable the liquid from the receiver to be all directed to the remote evaporator unit when the host unit is in null.
摘要翻译： 一种分区式运输制冷系统及其操作方法，其中主机制冷单元控制拖车前隔室中的空气温度，远程蒸发器单元控制后室中空气的温度。 为了增加远程蒸发器的加热能力，主机的热气管线被选择性地控制，使得当主机单元处于空值时，来自压缩机的所有热气体都能够被引导到远程蒸发器。 主机单元只能在远程单元处于空值时加热。 为了增加远程单元的冷却能力，当主机单元处于空值时，主机的液体管线被选择性地控制以使来自接收器的液体全部被引导到远程蒸发器单元。
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公开(公告)号：US5172560A
公开(公告)日：1992-12-22
申请号：US858806
申请日：1992-03-27
申请人： Romuald M. Jurewicz , Jay L. Hanson , Jeffrey B. Berge , Jayaram Seshadri , Alan D. Gustafson , David A. Christiansen , Richard A. Johnson , Lowell B. Naley , Doyle G. Herrig
发明人： Romuald M. Jurewicz , Jay L. Hanson , Jeffrey B. Berge , Jayaram Seshadri , Alan D. Gustafson , David A. Christiansen , Richard A. Johnson , Lowell B. Naley , Doyle G. Herrig
CPC分类号： F25B41/04 , B60H1/00014 , B60H1/3226 , B60H1/3232 , F25B27/00 , F25D29/003 , F25B2600/0253 , F25B41/043
摘要： A method of operating a transport refrigeration system having a compressor driven by a prime mover at a selected one of high and low speeds, an evaporator, and an evaporator blower driven by the prime mover. Refrigeration control provides an error value which controls the temperature of a load space to a predetermined set point via heating and cooling modes. The method includes the steps of driving the compressor at high speed during pull down, and injecting hot gas into the evaporator when the error is reduced to a predetermined value. The prime mover is maintained at high speed, to keep evaporator air flow at a high rate, continuing a relatively rapid temperature pull-down across the entire load space. The speed of the prime mover is reduced to low speed when the error is further reduced to a second value, which also initiates suction line modulation while maintaining hot gas injection.
摘要翻译： 一种运行制冷系统的方法，所述运输制冷系统具有由原动机以高速和低速选定的一个驱动的压缩机，蒸发器和由原动机驱动的蒸发器鼓风机。 制冷控制提供了通过加热和冷却模式将负载空间的温度控制到预定设定点的误差值。 该方法包括以下步骤：在下拉期间高速驱动压缩机，当误差减小到预定值时，将热气注入蒸发器。 原动机保持高速运转，以保持蒸发器空气流速高，在整个负载空间上持续相对较快的温度下拉。 当误差进一步降低到第二值时，原动机的速度降低到低速，这也在保持热气体注入的同时启动吸入管线调制。
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8.发明授权
公开(公告)号：US4899549A
公开(公告)日：1990-02-13
申请号：US304686
申请日：1989-01-03
CPC分类号： F25B41/04 , F25B27/00 , F25D29/003 , F25B41/043
摘要： A transport refrigeration system operable in cooling and heating cycles to maintain the temperature of a fresh load in a conditioned space extremely close to a predetermined set point temperature, with the cooling cycle primarily controlling the load temperature in ambients above freezing. The transport refrigeration system includes a compressor driven by a prime mover in one of two selectable speeds, an air delivery system which provides a substantially constant volume of conditioned air for a conditioned load space regardless of prime mover speed, a modulation valve in a suction line of the compressor, and a digital thermostat which senses the temperature of air returning to an evaporator. The digital thermostat controls the modulation valve via modulation control in a predetermined temperature range above and below set point, in both the heating and cooling cycles.
摘要翻译： 运输制冷系统，其可在冷却和加热循环中操作，以将新鲜负荷的温度维持在非常接近预定设定点温度的调节空间中，其中冷却循环主要控制在高于冰点的环境中的负载温度。 运输制冷系统包括由两个可选速度之一的原动机驱动的压缩机，空气输送系统，其为原动机速度的调节负载空间提供基本恒定体积的调节空气;吸入管线中的调节阀 的压缩机，以及数字恒温器，其感测返回到蒸发器的空气的温度。 在加热和冷却循环中，数字恒温器通过调节控制来控制调制控制在预定温度范围内高于和低于设定值。
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公开(公告)号：US5201185A
公开(公告)日：1993-04-13
申请号：US728472
申请日：1991-07-11
CPC分类号： B60H1/3232 , B60H1/3207 , F25B13/00 , F25B47/022 , F25D21/006 , F25D29/003
摘要： The invention relates to methods of defrosting an evaporator coil of a transport refrigeration unit which includes microprocessor based electrical control. The electrical control maintains the temperature of a conditioned space at a predetermined set point temperature via hot gas heating and cooling cycles. The evaporator coil is defrosted to remove frost and ice by closing a damper to the served space and initiating a heating cycle. At the termination of defrost, a cooling cycle is initiated, but the damper is maintained in a closed position for a predetermined period of time to remove heat built up during the defrost process. The invention also detects damper malfunctions, including failure to close prior to defrost, and failure to open after defrost. The invention also evaluates manual and timed requests for a defrost operation, overriding the requests in response to predetermined conditions.
摘要翻译： 本发明涉及对包括基于微处理器的电气控制的运输制冷单元的蒸发器盘管进行除霜的方法。 电气控制通过热气体加热和冷却循环将调节空间的温度保持在预定的设定点温度。 蒸发器盘管被解冻以通过将阻尼器关闭到所服务的空间并开始加热循环来去除霜冻和冰。 在除霜结束时，开始冷却循环，但将阻尼器保持在关闭位置一段预定的时间以除去除霜过程中积聚的热量。 本发明还检测阻尼器故障，包括在除霜之前未能关闭，以及除霜后未能打开。 本发明还评估用于除霜操作的手动和定时请求，以响应于预定条件来覆盖请求。
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公开(公告)号：US4537047A
公开(公告)日：1985-08-27
申请号：US585683
申请日：1984-03-02
申请人： Jayaram Seshadri , Daniel T. Neimy
发明人： Jayaram Seshadri , Daniel T. Neimy
CPC分类号： F25D19/003 , F25B1/00 , F25B2400/075
摘要： A transport refrigeration unit of the type which has a single or common refrigerant circuit, and a truck engine driven compressor 22 and a mutually, exclusively operable standby compressor 34 is provided with an arrangement of suction line fitting 46 with a pair of check valves 64 and 66 located physically above the fitting which receives the suction side refrigerant through line 48 from below the fitting and is provided with an inversely related pressure side fitting 54 with associated check valves 68 and 70 and the compressors are of substantially identical pumping capacity and oil capacity, all to the end of preventing an interchange of oil between the compressors during operation, and to migration of refrigerant and oil during periods of inoperation.
摘要翻译： 具有单个或普通制冷剂回路的运输制冷单元以及卡车发动机驱动的压缩机22和相互独立操作的备用压缩机34设置有具有一对止回阀64的吸入管线配件46和 66位于配件的物理上方，该配件通过管线48从配件的下方接收吸入侧制冷剂，并且设置有与相关联的止回阀68和70的相反的压力侧配件54，并且压缩机具有基本相同的泵送能力和油容量， 在运行期间防止压缩机之间的油互换，以及在操作期间的制冷剂和油的迁移。
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