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公开(公告)号：EP0602936A3
公开(公告)日：1995-01-25
申请号：EP93310079.4
申请日：1993-12-14
CPC分类号： B60H1/3208 , F25B27/00 , F25D29/003
摘要： A method of operating a refrigeration system (10) having a compressor (12) driven by an engine (14), with the refrigeration system being operable in a first control mode to hold the temperature of a conditioned space (48) at a selected set point temperature, and in a second control mode to maintain the engine in a ready-to-start condition. The second control mode includes monitoring (122,116,214) the ambient temperature, and determining (216) a dynamic set point temperature as a function of ambient temperature. The engine is started (222) and stopped (242) to maintain engine startability, and also as a function of the dynamic set point temperature, to maintain the temperature of the conditioned space at the dynamic set point temperature while maintaining the engine in a ready-to-start condition. Control is changed from the second to the first control mode, when a programmed start feature is activated, with the time of such mode change being a function (279) of the difference between the ambient temperature and the selected set point temperature.
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43.发明公开Pratical implementations for ion mobility sensor 失效PraktischeAusführungeneines Ionenbeweglichkeitssensors。
公开(公告)号：EP0616213A2
公开(公告)日：1994-09-21
申请号：EP94301094.2
申请日：1994-02-16
IPC分类号： G01N27/64
CPC分类号： G01N27/622
摘要： A system for signalling the presence of selected ion species in a gaseous sample of an ion mobility sensor (10), having a unidirectional field provided between first and second electrodes (16, 18) positioned a selected distance apart. An ionization source (35) generates ions in the sensor and a trigger controller (42) allows ions to enter the region (12) between the first and second electrodes at a time t₁. The ions then arrive at the second electrode at a time t₂. A transimpedance amplifier (38) converts the ion charges to voltage signals. The presence of selected ion species is determined by circuitry that is activated by the trigger controller at t₂. The species are preferably analyzed by directing the amplifier output to an analog to digital converter (56) and then to a digital signal processor (58). The ions may alternatively be analyzed by generating a logic pulse representing a selected ion species when the amplifier output exceeds a preset value. An alarm signal is output when the logic pulse is coincident at an AND gate (46) with a logic pulse representing the species' travel time from the first electrode to the second electrode.
摘要翻译： 用于在离子迁移率传感器（10）的气体样品中用信号通知所选择的离子物质的存在的系统，其具有设置在选定距离之间的第一和第二电极（16,18）之间的单向场。 电离源（35）在传感器中产生离子，并且触发控制器（42）允许离子在时间t1进入第一和第二电极之间的区域（12）。 离子然后在时间t2到达第二电极。 跨阻放大器（38）将离子电荷转换为电压信号。 选择的离子种类的存在由在t2时由触发控制器激活的电路确定。 优选通过将放大器输出引导到模拟数字转换器（56）然后再到数字信号处理器（58）来分析物种。 当放大器输出超过预设值时，也可以通过产生表示所选择的离子种类的逻辑脉冲来分析离子。 当逻辑脉冲与AND门（46）重合时，输出报警信号，逻辑脉冲表示从第一电极到第二电极的种类行进时间。
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公开(公告)号：EP0611934A2
公开(公告)日：1994-08-24
申请号：EP94301093.4
申请日：1994-02-16
CPC分类号： B60H1/3202 , F24F3/06 , F24F11/30 , F24F11/64 , F24F2001/0081 , F24F2005/0039 , F24F2110/10 , F24F2221/56 , F25D29/001
摘要： A refrigeration system (10) which controls the temperature of a conditioned space (12) to a predetermined temperature range adjacent to a selected set point temperature (SP) via a cooling cycle which includes evaporation a cryogen, such as CO₂ or N₂, in a heat exchanger (44). In an apparatus embodiment, a controller (66) determines a desired evaporation vapor pressure value (EPX) of the cryogen as a function of the selected set point temperature (SP), and then controls (EPV) the evaporation pressure (EP) in the heat exchanger means as a function of the determined desired evaporating vapor pressure value. The controller further determines a desired superheat value (SHX) of the cryogen exiting the heat exchanger means as a function of the selected set point temperature (SP), and controls (FCV) the mass flow rate of liquid cryogen evaporating in the heat exchanger as a function of the determined desired superheat value. A method embodiment includes the steps of providing (178,179) a desired evaporation vapor pressure value (EPX) of the cryogen as a function of the selected set point temperature (SP), controlling (180-196) the evaporation pressure in the heat exchanger means as a function of the desired evaporation vapor pressure value, providing (208,179) a desired superheat value (SHX) of the cryogen exiting the heat exchanger means as a function of the selected set point temperature (SP), and controlling (202-216) the mass flow rate of liquid cryogen from the cryogenic cooling means to the heat exchanger means as a function of the desired superheat value.
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45.发明公开Air conditioning and refrigeration methods and apparatus utilizing a cryogen 失效Luftkonditionierungs- undKühlmethodenund Apparat mit Nutzung eines Kryogens。
公开(公告)号：EP0599610A2
公开(公告)日：1994-06-01
申请号：EP93309346.0
申请日：1993-11-24
CPC分类号： F25D29/001 , B60H1/3202 , F24F5/0017 , Y02E60/147
摘要： Methods and apparatus for controlling the air temperature of a conditioned space (24) to a selected set point temperature, utilizing a supply (12) of cryogen in liquid and vapor states (14,16). The two states are drawn from the supply and maintained in first and second separate, independent flow paths (63,84). The liquid cryogen provides a cooling mode for the conditioned space via a heat exchanger (62) disposed in the first flow path, and the vaporized cryogen provides a cooling mode for the conditioned space via a heat exchanger (90) disposed in the second flow path. Cryogen flowing in at least one of the flow paths is used to drive a vapor motor (70) connected to a fan (70), with the fan moving air (56,58) between the conditioned space and at least one of the heat exchangers. Heat (182,168,188) is applied to the cryogen as required to hold the set point temperature, or to defrost a heat exchanger.
摘要翻译： 利用液态和蒸汽状态的冷冻剂供应源（12,16），将调节空间（24）的空气温度控制到选定的设定点温度的方法和装置。 这两个状态来自供应，并保持在第一和第二独立的独立流动路径（63,84）。 液体冷冻剂通过设置在第一流动路径中的热交换器（62）为调节空间提供冷却模式，并且蒸发的冷冻剂通过设置在第二流动路径中的热交换器（90）为调节空间提供冷却模式 。 在至少一个流路中流动的低温流体用于驱动连接到风扇（70）的蒸气马达（70），风扇移动空气（56,58）在调节空间与至少一个热交换器 。 根据需要将热量（182,168,188）应用于冷冻剂以保持设定点温度，或者将热交换器除霜。
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46.发明公开Method of monitoring a transport refrigeration system 失效Methode zum Betrieb einesKühlsystemsfürTransportzwecke。
公开(公告)号：EP0559334A1
公开(公告)日：1993-09-08
申请号：EP93300915.1
申请日：1993-02-09
IPC分类号： F25D29/00
CPC分类号： B60H1/3232 , B60H1/00978 , F25D29/003 , F25D2700/14
摘要： A method of monitoring a transport refrigeration system (20) which is effective regardless of the temperature of a served space (90) relative to a selected set point temperature (109). Different "windows" of acceptable and marginal performance are provided in the form of different minimum magnitudes of ΔT (184,196,208,242,244,250), ie., the algebraic difference between the return and discharge air temperatures, as a function of ambient and return air temperatures. The transport refrigeration system is thus monitored at all times, during both cooling and hot gas heating modes, and also including during initial temperature pull down of the cargo space, enabling an early warning (202,260) to be generated for a marginal performance, and an early shut down (216,232,276,286) to be initiated for unacceptable performance. In one embodiment, a maximum value of ΔT is also provided (306), which, if exceeded by the actual ΔT, indicates a restricted air flow (318) in the cargo space.
摘要翻译： 一种监测运输制冷系统（20）的方法，该运输制冷系统（20）相对于所选择的设定点温度（109）而言与有效空间（90）的温度无关。 以不同的最小值DELTA T（184,196,208,242,244,250）的形式提供了可接受和边际性能的不同“窗口”，即回归和排出空气温度之间的代数差，作为环境和回风温度的函数。 因此，在冷却和热气体加热模式期间，运输制冷系统始终被监控，并且还包括在货物空间的初始温度下拉期间，能够为边缘性能产生预警（202,260），并且 提前关闭（216,232,276,286），以开展不可接受的表现。 在一个实施例中，还提供了最大值DELTA T（306），如果超过实际的DELTA T，则表示货物空间中的限制空气流（318）。
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公开(公告)号：EP0514014A3
公开(公告)日：1993-03-24
申请号：EP92303446.6
申请日：1992-04-16
IPC分类号： B60H1/32
CPC分类号： F25B27/00 , B60H1/3232
摘要： A transport refrigeration system (10) having a frame (22) which supports a refrigerant compressor (30), a prime mover (24) for the compressor, condenser and evaporator coils (32,34), and an air delivery assembly (36) for moving air through the condenser and evaporator coils. The air delivery assembly includes a single shaft (38) having first and second condenser blowers (40,44) mounted adjacent the ends of the shaft, and an evaporator blower (42) mounted on the shaft between the first and second condenser blowers. A drive arrangement (72) for the air delivery assembly (36) includes a jack shaft (72) between the shaft (38) of the air delivery assembly and the prime mover (24), with the prime mover being linked (98,104) to drive the jack shaft, and with the jack shaft being linked (99) to drive the shaft (38) of the air delivery assembly (36).
摘要翻译： 一种运输制冷系统（10），具有支撑制冷压缩机（30）的框架（22），用于压缩机，冷凝器和蒸发器盘管（32,34）的原动机（24）以及空气输送组件（36） 用于移动空气通过冷凝器和蒸发器盘管。 空气输送组件包括具有安装在轴端部附近的第一和第二冷凝器鼓风机（40,44）的单个轴（38），以及安装在第一和第二冷凝器鼓风机之间的轴上的蒸发器鼓风机（42）。 用于空气输送组件（36）的驱动装置（72）包括在空气输送组件的轴（38）和原动机（24）之间的千斤顶轴（72），其中原动机连接到（98,104） 驱动千斤顶轴，并且连接千斤顶轴（99）以驱动空气输送组件（36）的轴（38）。
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公开(公告)号：EP0365351B1
公开(公告)日：1993-02-24
申请号：EP89310831.6
申请日：1989-10-20
CPC分类号： F25B29/003 , F25B5/00 , F25B27/00 , F25B41/04 , F25B47/022 , F25B2400/13
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公开(公告)号：EP0522849A1
公开(公告)日：1993-01-13
申请号：EP92306283.0
申请日：1992-07-08
发明人： Hanson, Jay Lowell
摘要： Methods and apparatus for detecting fuel problems of an internal combustion engine (30), including low fuel, a plugged fuel filter, a pinched fuel line, air in the fuel system, and gelled fuel. The detection (268) of a fuel system problem is followed by engine shutdown (282), with shutdown being initiated quickly enough to retain sufficient fuel in the fuel system to re-start the engine without the necessity of priming. The invention includes the detection (260) and counting (266) of predetermined engine speed fluctuations. A timer (232) is started upon the detection (262) of the first predetermined speed fluctuation. If a predetermined count (268) is reached before the timer (230) reaches a predetermined time value (278), the engine (30) is shutdown (282) when the count is reached. If the timer (232) reaches (278) the time value before the count value is reached, the counter and timer are reset (280) to await another predetermined engine speed fluctuation.
摘要翻译： 用于检测内燃机（30）的燃料问题的方法和装置，包括低燃料，堵塞燃料过滤器，夹紧燃料管线，燃料系统中的空气和凝胶燃料。 燃油系统问题的检测（268）之后是发动机关闭（282），其关闭正在迅速启动，足以在燃料系统中保留足够的燃料以重新起动发动机而不需要起动。 本发明包括预定发动机转速波动的检测（260）和计数（266）。 在第一预定速度波动的检测（262）时启动计时器（232）。 如果在定时器（230）达到预定时间值（278）之前达到预定计数（268），则当达到计数时，发动机（30）关闭（282）。 如果计时器（232）达到（278）达到计数值之前的时间值，则计数器和定时器被复位（280）以等待另一个预定的发动机速度波动。
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公开(公告)号：EP0358638B1
公开(公告)日：1992-08-05
申请号：EP88900426.3
申请日：1987-12-03
IPC分类号： F25D19/00
CPC分类号： B60H1/3232 , F25D19/003
摘要： A transport refrigeration system (10) suitable for mounting on the front wall (14) of a narrow post highway trailer (15) in which the refrigeration system (10) intrudes into the trailer cargo space (17) only to the extent necessary to direct trailer air (89) into an evaporator coil (72). The evaporator coil (72) is completely serviceable external to the trailer (15), with its inlet surface (76) being substantially co-planar with the inside surface (80) of the front wall (14) of the trailer (15). An air delivery assembly (98) is manufactured as an integral unit and mounted in a main support frame (12) of the transport refrigeration system (10) without requiring further adjustment. Mounting of the air delivery assembly (98) on an intermediate wall (50) of support frame (12) completes a plenum chamber (119) for the evaporator coil (72), placing an axially narrow blower (106) into an air flow path in which the blower (106) draws trailer air (89) through the evaporator coil (72) and forces conditioned air (91) back into the trailer (15). Mounting of the air delivery assembly (98) also creates a condenser plenum (123) and places a fan (110) into an air flow path in which outside air (93) is directed upwardly through a condenser coil (90), and laterally through an engine radiator (94).
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