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公开(公告)号：US4257238A
公开(公告)日：1981-03-24
申请号：US80363
申请日：1979-09-28
CPC分类号： F24F11/085 , F24F11/0009 , F25B49/02 , G05D23/1917 , G05D23/24 , F24F11/0012 , F24F11/0015 , F25B2600/021 , F25B2600/11 , Y02B30/741
摘要： An apparatus and method for controlling continuously and discretely the speed of an indoor evaporator fan motor and the speed of the compressor as a function of the fan speed for regulating the dry bulb temperature and relative humidity of a conditioned space includes a programmed control device which produces a first signal for driving a fan inverter connected to the evaporator fan motor. A second signal, which is a function of the first signal, is also provided by the control device to drive a compressor inverter coupled to the compressor. A microprocessor having a program is operatively connected to the programmed control device for controlling its operation to effect the measured temperature of the conditioned space.
摘要翻译： 用于连续和离散地控制室内蒸发器风扇马达的速度和压缩机的速度的装置和方法，其作为用于调节干球温度和调节空间的相对湿度的风扇速度的函数，包括编程控制装置，其产生 用于驱动连接到蒸发器风扇马达的风扇逆变器的第一信号。 作为第一信号的函数的第二信号也由控制装置提供，以驱动耦合到压缩机的压缩机逆变器。 具有程序的微处理器可操作地连接到编程的控制装置，用于控制其操作以实现调节空间的测量温度。
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公开(公告)号：US4269261A
公开(公告)日：1981-05-26
申请号：US80361
申请日：1979-09-28
CPC分类号： F24D19/1039 , F25B13/00 , G05D23/1917 , G05D23/24 , F25B2313/0293 , F25B2600/025
摘要： An apparatus and method for controlling continuously and discretely the speed of a heat pump compressor as a function of load conditions to run at least up to 150% of its rate-speed when operated in the heating mode to provide initial supplemental heating prior to turning on of electric heaters. The speed of the indoor condenser fan is maintained at its full rated-speed. The operation of the apparatus is controlled by a microprocessor with a program to provide improved performance and minimize energy consumption.
摘要翻译： 一种用于连续和离散地控制热泵压缩机的速度作为负载条件的功能的装置和方法，以在加热模式下运行时运行至少高达其速率的150％的速率，以在开启之前提供初始补充加热 的电加热器。 室内冷凝器风扇的速度保持在其全额定速度。 该装置的操作由具有程序的微处理器控制，以提供改进的性能并最小化能量消耗。
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公开(公告)号：US06530240B1
公开(公告)日：2003-03-11
申请号：US10013243
申请日：2001-12-10
IPC分类号： F25J100
CPC分类号： F04C28/26 , F04C18/16 , F04C28/06 , F04C28/08 , F04C29/026 , F25B1/047 , F25B9/006 , F25B43/02 , F25B45/00 , F25B49/025 , F25B2400/16 , F25B2600/021 , F25J1/0022 , F25J1/0052 , F25J1/0212 , F25J1/0279 , F25J1/0284 , F25J1/0298 , F25J2280/10 , F25J2280/20 , Y02B30/741
摘要： In a natural gas liquefaction system having a refrigerant storage circuit, a refrigerant circulation circuit in fluid communication with the refrigerant storage circuit, and a natural gas liquefaction circuit in thermal communication with the refrigerant circulation circuit, a method for liquefaction of natural gas in which pressure in the refrigerant circulation circuit is adjusted to below about 175 psig by exchange of refrigerant with the refrigerant storage circuit. A variable speed motor is started whereby operation of a compressor is initiated. The compressor is operated at full discharge capacity. Operation of an expansion valve is initiated whereby suction pressure at the suction pressure port of the compressor is maintained below about 30 psig and discharge pressure at the discharge pressure port of the compressor is maintained below about 350 psig. Refrigerant vapor is introduced from the refrigerant holding tank into the refrigerant circulation circuit until the suction pressure is reduced to below about 15 psig, after which flow of the refrigerant vapor from the refrigerant holding tank is terminated. Natural gas is then introduced into a natural gas liquefier, resulting in liquefaction of the natural gas.
摘要翻译： 在具有制冷剂储存回路，与制冷剂储存回路流体连通的制冷剂循环回路和与制冷剂循环回路热连通的天然气液化回路的天然气液化系统中，液化天然气的方法，其中压力 在制冷剂循环回路中，通过制冷剂与制冷剂储存回路的交换而调节到低于约175psig。 启动变速电动机，从而启动压缩机的操作。 压缩机以全放电容量运行。 启动膨胀阀的操作，由此压缩机的吸入压力端口处的吸入压力保持在约30psig以下，压缩机的排出压力端口处的排出压力保持在约350psig以下。 制冷剂蒸气从制冷剂储存罐引入制冷剂循环回路，直到吸入压力降低到约15psig以下，此后制冷剂储存罐的制冷剂蒸汽流过终止。 然后将天然气引入天然气液化器中，导致天然气液化。
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公开(公告)号：US5771947A
公开(公告)日：1998-06-30
申请号：US878871
申请日：1997-06-19
CPC分类号： F17C5/06 , F17C13/02 , F17C13/025 , F17C13/026 , F17C2201/0109 , F17C2201/0119 , F17C2205/0326 , F17C2205/0364 , F17C2221/033 , F17C2223/0123 , F17C2223/036 , F17C2227/0157 , F17C2227/04 , F17C2250/032 , F17C2250/0421 , F17C2250/0426 , F17C2250/043 , F17C2250/0439 , F17C2250/0495 , F17C2250/0621 , F17C2250/0636 , F17C2265/065 , F17C2270/0139 , Y10T137/1987
摘要： A method and apparatus for dispensing natural gas into the natural gas vehicle cylinder of a motor vehicle is disclosed. The natural gas dispensing system includes a pressure transducer and a temperature transducer for measuring the pressure and temperature, respectively, of the supply gas as it is passed toward a dispenser, a second pressure transducer for measuring the pressure within the natural gas vehicle cylinder, an ambient air temperature transducer for measuring ambient air temperatures at the dispensing site, and a mass flow meter for measuring the gas mass injected into the vehicle cylinder. Each transducer and the mass flow meter emits a data signal to a control processor which automatically dispenses compressed gas to the vehicle cylinder, as well as maximizing the amount of gas mass injected into the cylinder. The control processor maximizes the mass of compressed gas injected into the vehicle cylinder by injecting a first mass of compressed gas into the cylinder and calculating a first volume estimate in response thereto, estimating a second mass of compressed gas required to fill the cylinder to a first predetermined fill state, and then estimating a third mass of compressed gas required to fill a reference gas cylinder to the first predetermined fill state in response thereto. Thereafter, the second mass of compressed gas is injected into the cylinder, the gas mass being injected into the cylinder from the initial state being measured, as well as the pressure of the compressed gas within the container resulting from the injection of the second gas mass being measured, whereupon the control processor estimates a second volume of the gas container in response thereto. Thereafter, the control process may be used to either perform a final fill step to complete the gas mass injection into the cylinder, or may perform a second intermediate fill step prior to the final fill step for greater accuracy in determining tank volume during the fill process.
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公开(公告)号：US4282719A
公开(公告)日：1981-08-11
申请号：US75044
申请日：1979-09-12
CPC分类号： F25B49/022 , F25B49/025 , F25B2600/021 , Y02B30/741
摘要： The control system disclosed herein regulates a centrifugal compressor which has inlet guide vanes adjustable to vary the compressor capacity. A variable speed motor is connected to drive the compressor, and variation of this motor speed provides another input for regulating the compressor capacity. A control system achieves optimum energy efficiency, while avoiding surge, by the manner in which the motor speed and the inlet guide vane positions are regulated. To do this, a control signal must be derived to indicate the compressor head value. This signal is achieved by providing two signals, one related to the absolute condenser pressure, and the second related to the absolute evaporator pressure. The control system operates on these two signals to provide a third signal which is a function of a ratio, in which the numerator is the difference between the condenser and evaporator pressures, and the denominator is the evaporator pressure. Alternative measurement and processing techniques are described. This signal affords a very good indication of the compressor head and thus achieves increased efficiency of system operation, with consequent energy conservation, especially at lighter loads and low heads.
摘要翻译： 本文公开的控制系统调节离心式压缩机，其具有可调节的入口导向叶片以改变压缩机容量。 连接变速电动机来驱动压缩机，并且该电动机速度的变化提供用于调节压缩机容量的另一个输入。 控制系统通过电动机速度和入口导向叶片位置的调节方式实现最佳的能量效率，同时避免浪涌。 为此，必须导出控制信号以指示压缩机机头值。 该信号通过提供两个信号来实现，一个与绝对冷凝器压力相关，另一个与绝对蒸发器压力相关。 控制系统对这两个信号进行操作，以提供第三个信号，它是一个比例的函数，其中分子是冷凝器和蒸发器压力之差，分母是蒸发器压力。 描述了替代测量和处理技术。 该信号提供了压缩机头的非常好的指示，从而实现了系统操作的更高的效率，从而节约了能量，特别是在较轻的负载和低的头部。
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公开(公告)号：US5641005A
公开(公告)日：1997-06-24
申请号：US349484
申请日：1994-12-02
CPC分类号： F17C5/06 , F17C2205/0329 , F17C2221/033 , F17C2223/0123 , F17C2223/036 , F17C2227/0135 , F17C2227/0353 , F17C2227/04 , F17C2250/032 , F17C2250/0439 , F17C2250/075 , F17C2260/025 , F17C2265/065
摘要： A method and system for charging a container with a pressurized gaseous fuel. The gaseous fuel is transferred from a gas supply through a heat exchanger to a fueling dispenser. The gaseous fuel is cooled as a function of one or both of a fueling station pressure availability or a container pressure rating. This method and system ensure that a pressurized gas cylinder can be completely charged regardless of the ambient temperature.
摘要翻译： 一种用加压气体燃料对容器充电的方法和系统。 气体燃料从气体供应通过热交换器传送到加油分配器。 作为加油站压力可用性或容器压力等级之一或两者的函数，气态燃料被冷却。 该方法和系统确保加压气瓶可以完全充电，而不管环境温度如何。
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7.发明授权Apparatus and method for controlling the charging of NGV cylinders from natural gas refueling stations 失效从天然气加油站控制NGV气瓶充气的装置和方法
公开(公告)号：US5488978A
公开(公告)日：1996-02-06
申请号：US237001
申请日：1994-05-02
CPC分类号： F17C5/007 , F17C13/02 , F17C2205/0335 , F17C2221/033 , F17C2223/0123 , F17C2223/036 , F17C2227/04 , F17C2250/043 , F17C2250/0439 , F17C2250/0636 , F17C2250/072 , F17C2260/021 , F17C2260/026 , F17C2265/065 , F17C2270/0139 , F17C2270/0168
摘要： An apparatus and method for the fast-filling of cylinders for natural gas powered vehicles, employing a simplified physical arrangement and an improved control method to obtain maximum safe filling of the cylinders, which takes into account the presence of residual gas in the cylinders.
摘要翻译： 一种用于天然气动力车辆的气瓶快速充填的装置和方法，采用简化的物理布置和改进的控制方法来获得气缸的最大安全填充，其考虑到气缸中残留气体的存在。
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公开(公告)号：US4355948A
公开(公告)日：1982-10-26
申请号：US235266
申请日：1981-02-17
申请人： Kenneth J. Kountz , Dean K. Norbeck
发明人： Kenneth J. Kountz , Dean K. Norbeck
CPC分类号： F04D27/02 , F04D27/0246
摘要： An adjustable surge and capacity control system for matching a capacity control system to an inverter-driven centrifugal compressor based liquid chiller having unknown surge characteristics. The necessary adaptation of the capacity control circuit to a particular chiller is attained by the provision of two potentiometers which are adjustable to develop a functional which avoids surge and operates the system in an efficient manner at all feasible operating point loads and heads. The use of a circuit employing a pair of potentiometers permits the formation of the appropriate functional with two degrees of shaping flexibility.
摘要翻译： 一种可调节的浪涌和容量控制系统，用于将容量控制系统与具有未知浪涌特性的变频器驱动的离心式压缩机基液体冷却器相匹配。 容量控制电路对特定冷却器的必要调整是通过提供两个电位计来实现的，这两个电位计是可调节的，以开发避免浪涌的功能，并且在所有可行的工作点负载和磁头上以有效的方式操作系统。 使用采用一对电位器的电路允许形成具有两度成形灵活性的适当的功能。
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公开(公告)号：US5165254A
公开(公告)日：1992-11-24
申请号：US739200
申请日：1991-08-01
摘要： A heat exchange system for a heat pump in which the cooled fluid and the cooling fluid are maintained in a counterflow heat exchange relationship in a heat exchanger in both the heating and cooling modes of operation of the heat pump. The heat exchange system comprises a refrigeration coil, a liquid distributor, a vapor distributor, an outlet manifold, expansion means, vapor refrigerant/inlet distributor valve means, vapor refrigerant/outlet manifold valve means, liquid refrigerant/inlet distributor valve means and liquid refrigerant/outlet manifold valve means.
摘要翻译： 一种用于热泵的热交换系统，其中冷却流体和冷却流体在热泵的加热和冷却运行模式下在热交换器中保持逆流热交换关系。 热交换系统包括制冷盘管，液体分配器，蒸汽分配器，出口歧管，膨胀装置，蒸汽制冷剂/入口分配器阀装置，蒸汽制冷剂/出口歧管阀装置，液体制冷剂/入口分配器阀装置和液体制冷剂 /出口歧管阀装置。
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10.发明授权Capacity control systems for inverter-driven centrifugal compressor based water chillers 失效基于变频驱动离心压缩机的冷水机组容量控制系统
公开(公告)号：US4546618A
公开(公告)日：1985-10-15
申请号：US652401
申请日：1984-09-20
申请人： Kenneth J. Kountz , Richard A. Erth
发明人： Kenneth J. Kountz , Richard A. Erth
CPC分类号： F25B49/02 , F25B1/053 , F25B2600/021 , Y02B30/741
摘要： A capacity control system for a refrigeration system including a compressor, a condensor, and an evaporator, all connected in a closed refrigeration circuit is provided. The compressor includes a plurality of adjustable inlet guide vanes, a motor connected to regulate the inlet guide vanes position, and an electrical speed motor connected to drive the compressor. The capacity control system includes a microprocessor responsive to continual measurements of a PRV signal, a compressor head signal and a suction flow signal for calculating a current operating point. The microprocessor determines whether the operating point is sufficiently away from a surge surface. The microprocessor will cause the operating point to move to a new operating point of a lower compressor speed and a more open PRV position if the operating point is sufficiently away from surge. In order to accomplish this, the microprocessor generates control signals to adjust both the speed of the compressor drive motor and the position of the inlet guide vanes. In an alternate embodiment, the microprocessor is responsive to continual measurements of a PRV signal, a motor speed signal, and a suction flow signal for generating such control signals.
摘要翻译： 提供一种全封闭制冷回路连接的包括压缩机，冷凝器和蒸发器的制冷系统的容量控制系统。 压缩机包括多个可调节的入口引导叶片，连接以调节入口导向叶片位置的马达以及连接以驱动压缩机的电动马达。 容量控制系统包括响应于PRV信号的连续测量的微处理器，压缩机头信号和用于计算当前工作点的吸入流信号。 微处理器确定工作点是否足够远离浪涌表面。 如果工作点远离浪涌，微处理器将使工作点移动到较低压缩机转速和更开放的PRV位置的新工作点。 为了实现这一点，微处理器产生控制信号以调节压缩机驱动马达的速度和入口导叶的位置。 在替代实施例中，微处理器响应于PRV信号的连续测量，电动机速度信号和用于产生这种控制信号的吸入流信号。
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