HVAC system with refrigerant venting
    121.
    发明授权
    HVAC system with refrigerant venting 有权
    HVAC系统与制冷剂排放

    公开(公告)号:US06907748B2

    公开(公告)日:2005-06-21

    申请号:US10606874

    申请日:2003-06-26

    摘要: Each blow-off valve includes a valve body with a first movable wall defining a portion of the liquid fluid passage therein and a second movable wall defining a portion of the suction fluid passage therein. An actuator interconnects the movable walls for simultaneously moving the walls and opening the fluid passages in response to the electrical leakage-warning signal. In the species of FIGS. 2 and 3, the movable walls are integrally united with the valve body and include frangible sections that are fractured by an explosive squib to separate the movable walls from the body to simultaneously open the liquid and suction fluid passages. In the species of FIG. 5, the movable walls are separate valve elements disposed in a circular bore that opens the passages to the ambient surroundings. The actuator includes a spring, for biasing each of the valve elements out of its respective bore, and a holding device that weakens in response to the electrical leakage-warning signal.

    摘要翻译: 每个排放阀包括具有限定其中的液体流体通道的一部分的第一活动壁的阀体和限定其中的吸入流体通道的一部分的第二活动壁。 致动器互连可动壁,用于同时移动壁并响应于漏电警告信号打开流体通道。 在图的物种中 如图2和图3所示,可移动壁与阀体整体地结合在一起,并且包括由爆炸物点燃器断裂的易碎部分,以将活动壁与主体分开以同时打开液体和抽吸流体通道。 在图的物种 如图5所示,可移动壁是设置在圆形孔中的分离的阀元件,其将通道打开到周围环境。 致动器包括用于将每个阀元件偏压出其相应的孔的弹簧以及响应于漏电警告信号而变弱的保持装置。

    Blowoff valve assembly with integrated pressure switch
    123.
    发明申请
    Blowoff valve assembly with integrated pressure switch 失效
    带集成压力开关的排气阀组件

    公开(公告)号:US20050061010A1

    公开(公告)日:2005-03-24

    申请号:US10911123

    申请日:2004-08-04

    摘要: A blowoff valve assembly includes a diaphragm separating a refrigerant connection from an ambient port open to the atmosphere. The refrigerant connection is preferably connected to air conditioning system such that the diaphragm is in contact with refrigerant from the system. The diaphragm is deflectable based on the pressure of the refrigerant and is operatively connected to a switch. When pressure of the refrigerant drops to a predetermined level, the diaphragm deflects to activate the switch. Additionally, the assembly also includes a detonable squib that explodes and ruptures the diaphragm, allowing the refrigerant to flow from the refrigerant connection to the atmosphere. Additional features, such as sensors for detecting refrigerant outside of the system, a collision subsystem, and an associated controller are also disclosed.

    摘要翻译: 排气阀组件包括将制冷剂连接与大气开放的环境端口分开的隔膜。 制冷剂连接优选地连接到空调系统,使得隔膜与来自系统的制冷剂接触。 隔膜可基于制冷剂的压力而偏转并且可操作地连接到开关。 当制冷剂的压力下降到预定水平时,隔膜偏转以激活开关。 此外,组件还包括爆炸和破裂隔膜的可爆炸爆管,允许制冷剂从制冷剂连接流到大气。 还公开了诸如用于在系统外部检测制冷剂的传感器,碰撞子系统和相关联的控制器的附加特征。

    HVAC system with refrigerant venting
    124.
    发明申请
    HVAC system with refrigerant venting 有权
    HVAC系统与制冷剂排放

    公开(公告)号:US20050039475A1

    公开(公告)日:2005-02-24

    申请号:US10942338

    申请日:2004-09-16

    摘要: Each blow-off valve includes a valve body with a first movable wall defining a portion of the liquid fluid passage therein and a second movable wall defining a portion of the suction fluid passage therein. An actuator interconnects the movable walls for simultaneously moving the walls and opening the fluid passages in response to the electrical leakage-warning signal. In the species of FIGS. 2 and 3, the movable walls are integrally united with the valve body and include frangible sections that are fractured by an explosive squib to separate the movable walls from the body to simultaneously open the liquid and suction fluid passages. In the species of FIG. 5, the movable walls are separate valve elements disposed in a circular bore that opens the passages to the ambient surroundings. The actuator includes a spring, for biasing each of the valve elements out of its respective bore, and a holding device that weakens in response to the electrical leakage-warning signal.

    摘要翻译: 每个排放阀包括具有限定其中的液体流体通道的一部分的第一活动壁的阀体和限定其中的吸入流体通道的一部分的第二活动壁。 致动器互连可动壁,用于同时移动壁并响应于漏电警告信号打开流体通道。 在

    Receiver-drier for use in an air conditioning system
    125.
    发明授权
    Receiver-drier for use in an air conditioning system 有权
    用于空调系统的接收干燥器

    公开(公告)号:US06742355B2

    公开(公告)日:2004-06-01

    申请号:US10028975

    申请日:2001-12-28

    IPC分类号: F25B4300

    摘要: The invention relates to a receiver-drier for use in an air conditioning system. This receiver-drier has (a) a lower portion defining a lower chamber in the receiver-drier; (b) an upper portion defining an upper chamber in the receiver-drier; and (c) a strainer for removing foreign particles from the refrigerant. The lower portion has an inlet for allowing the refrigerant to flow into the lower chamber and an outlet for allowing the refrigerant to flow out of the lower chamber. Each of the inlet and the outlet is formed at a bottom of the lower portion. The upper chamber is on top of the lower chamber and is charged with a desiccant for removing moisture from the refrigerant. The strainer is disposed at a position in a flow of the refrigerant from the inlet to the outlet.

    摘要翻译: 本发明涉及一种用于空调系统的接收干燥机。 该接收干燥器具有(a)在接收器 - 干燥器中限定下室的下部; (b)在接收干燥器中限定上室的上部部分; 和(c)用于从制冷剂中除去外来颗粒的过滤器。 下部具有用于允许制冷剂流入下室的入口和用于允许制冷剂从下腔室流出的出口。 入口和出口中的每一个形成在下部的底部。 上部腔室位于下部腔室的顶部,并带有用于从制冷剂中除去水分的干燥剂。 过滤器设置在从入口到出口的制冷剂流中的位置。

    Air conditioner and method of detecting refrigerant leakage therein
    126.
    发明授权
    Air conditioner and method of detecting refrigerant leakage therein 有权
    空调及其中检测制冷剂泄漏的方法

    公开(公告)号:US06701722B1

    公开(公告)日:2004-03-09

    申请号:US10295961

    申请日:2002-11-18

    IPC分类号: F25B4500

    摘要: An air conditioner and method of detecting a refrigerant leakage in the air conditioner in which the entire refrigerant pipe of the air conditioner is sectioned based on expansion valves into a plurality of sections, the sections are checked one by one to quickly detect a refrigerant leakage from the sections and an exact position of a broken or loosened area of the refrigerant pipe causing such a refrigerant leakage is found. In the method of detecting a refrigerant leakage in the air conditioner, comprising a compressor, an expansion valve, an outdoor heat exchanger, and an indoor heat exchanger connected to one another by a refrigerant pipe, the refrigerant pipe is sectioned into a high pressure section extending from the outlet port of the compressor to the inlet port of the expansion valve, and a low pressure section extending from the outlet port of the expansion valve to the inlet port of the compressor. A pressure sensor is provided on the refrigerant pipe within the low pressure section. A control unit detects a refrigerant leakage in the low pressure section by comparing a variation in refrigerant pressure sensed by the pressure sensor with a preset variation in the refrigerant pressure in accordance with a normal operation without the refrigerant pipe having a refrigerant leakage, during a refrigerant leakage detection mode.

    摘要翻译: 一种空气调节器和空调机中的制冷剂泄漏检测方法,其中空调器的整个制冷剂管道基于膨胀阀分成多个部分,这些部分逐一检查以快速检测制冷剂从 发现制冷剂管道断裂或松动区域的精确位置,导致制冷剂泄漏。 在通过制冷剂配管连接的压缩机,膨胀阀,室外热交换器和室内热交换器的空调机中检测制冷剂泄漏的方法中,将制冷剂管分成高压部 从压缩机的出口延伸到膨胀阀的入口,以及从膨胀阀的出口延伸到压缩机的入口的低压部分。 压力传感器设置在低压段内的制冷剂管上。 控制单元在制冷剂泄漏期间,通过比较压力传感器检测到的制冷剂压力的变化与制冷剂压力的预设变化,通过正常操作来检测低压部分中的制冷剂泄漏。 泄漏检测模式。

    METHOD AND APPARATUS FOR DETECTING LOW REFRIGERANT CHARGE
    128.
    发明申请
    METHOD AND APPARATUS FOR DETECTING LOW REFRIGERANT CHARGE 有权
    用于检测低制冷剂充电的方法和装置

    公开(公告)号:US20020121100A1

    公开(公告)日:2002-09-05

    申请号:US09798315

    申请日:2001-03-02

    IPC分类号: F25B045/00 F25B001/00

    摘要: Apparatus for detecting low charge of a working fluid in a heat transfer system of the type having a fluid circuit comprising a compressor for pressurizing working fluid received from an evaporator, a condenser and condenser fan for cooling the working fluid received from the compressor, and an expansion device for controlling flow of the working fluid between the condenser and the evaporator, the apparatus comprising: a working fluid state sensor operative in response to a control signal and disposed in the fluid circuit on the outlet side of the evaporator to produce a working fluid state signal; and a control circuit for providing the control signal to the sensor and for controlling operation of the heat transfer system based on a comparison of the working fluid state signal with a state set point; the control circuit detecting a low charge condition of the working fluid when the state signal indicates the working fluid superheat exceeds a first predetermined threshold over a first predetermined time with the expansion device in a fully open condition.

    摘要翻译: 用于检测在具有流体回路的传热系统中的低工作流体的装置,该流体回路包括用于对从蒸发器接收的工作流体加压的压缩机,用于冷却从压缩机接收的工作流体的冷凝器和冷凝器风扇, 膨胀装置,用于控制冷凝器和蒸发器之间的工作流体的流动,该装置包括:工作流体状态传感器,其响应于控制信号而工作并且设置在蒸发器出口侧的流体回路中,以产生工作流体 状态信号; 以及控制电路,用于根据所述工作流体状态信号与状态设定点的比较,向所述传感器提供所述控制信号并控制所述传热系统的操作; 当所述状态信号指示所述工作流体过热时,所述控制电路在所述膨胀装置处于完全打开状态的情况下,在第一预定时间内超过第一预定阈值时,检测所述工作流体的低充电状态。

    Method of introducing an in situant into a vapor compression system, especially useful for leak detection, as well as an apparatus for leak detection and a composition useful for leak detection
    129.
    发明申请
    Method of introducing an in situant into a vapor compression system, especially useful for leak detection, as well as an apparatus for leak detection and a composition useful for leak detection 审中-公开
    将原位置入特别适用于泄漏检测的蒸汽压缩系统的方法以及用于泄漏检测的装置和用于泄漏检测的组合物

    公开(公告)号:US20020007663A1

    公开(公告)日:2002-01-24

    申请号:US09929348

    申请日:2001-08-15

    IPC分类号: G01M003/04

    摘要: Leaks are detected in a vapor compression system using fluorescent and daylight visible in situants which are introduced to a system by way of a carrier and dissolved into the systems oil or lubricant. This invention teaches the use of POE oil as a universal carrier fluid, alone or in combination with an alcohol, and combined with one or more nullin situantsnull. The in situants are compounds which are the same or substantially similar to compounds already present in oils or lubricants. An on-off UV light source, such as a xenon light, can the be used to visually detect the leak from the vapor compression system components.

    摘要翻译: 在使用荧光和日光可见原位的蒸气压缩系统中检测到泄漏,其通过载体引入系统并溶解到系统油或润滑剂中。 本发明教导了POE油作为通用载体流体,单独使用或与醇组合使用,并与一种或多种“原位”组合使用。 原位是与油或润滑剂中已经存在的化合物相同或基本相似的化合物。 可以使用诸如氙灯的开关式UV光源来目视检测来自蒸汽压缩系统部件的泄漏。

    Refrigerant loss detection
    130.
    发明授权
    Refrigerant loss detection 失效
    制冷剂损失检测

    公开(公告)号:US06330802B1

    公开(公告)日:2001-12-18

    申请号:US09510703

    申请日:2000-02-22

    IPC分类号: F25B4902

    摘要: A method for detecting a low level of refrigerant circulating through a motor vehicle refrigerant circuit having a compressor (12), a condenser (14), an evaporator (16), and an accumulator (18), includes detecting a partial loss of a refrigerant fluid by measuring the temperature difference of the refrigerant fluid between an evaporator inlet and an evaporator outlet. The method further includes detecting a complete loss of refrigerant by measuring the pressure of the refrigerant in the liquid phase between the condenser (14) and the evaporator (16). The temperature and pressure measurements are converted to engineering units and then compared to predetermined engineering units that correspond to separate ranges of ambient temperatures for determining the if the refrigerant level is low.

    摘要翻译: 一种用于检测通过具有压缩机(12),冷凝器(14),蒸发器(16)和蓄能器(18)的机动车辆制冷剂回路循环的低水平制冷剂的方法,包括检测制冷剂的部分损失 流体,通过测量蒸发器入口和蒸发器出口之间的制冷剂流体的温差。 该方法还包括通过测量在冷凝器(14)和蒸发器(16)之间的液相中的制冷剂的压力来检测制冷剂的完全损失。 将温度和压力测量值转换为工程单位,然后与对应于单独的环境温度范围的预定工程单位进行比较,以确定制冷剂水平是否低。