Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator
    5.
    发明授权
    Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator 有权
    从氧气浓缩器产生液体动态氧气的方法和装置

    公开(公告)号:US06651653B1

    公开(公告)日:2003-11-25

    申请号:US09342890

    申请日:1999-06-29

    IPC分类号: A62B706

    摘要: The present invention is directed to a much safer and less expensive way of providing portable oxygen from a gas concentrator for patients who do not want to be tied to a stationary machine or restricted by present oxygen technology. In one preferred embodiment, the present invention splits off some of the excess capacity gas flow from a gas concentrator which is then stored via liquefaction. The stored gas can then be used as a portable supply. A portion of the oxygen gas flow generated by the oxygen concentrator is channeled to a condenser which receives and liquefies the oxygen gas using cryocooler. A storage dewar is used for storing the oxygen liquefied by the condenser. Liquid is then selectively transferred to a smaller portable dewar. A controller can be used for monitoring the parameters of liquefaction, including oxygen concentration, the amount of liquid oxygen in the dewar, and for controlling the parameters of liquid oxygen generation and transfer. In one embodiment, the flow rate into the condenser is chosen to exceed the capacity of the condenser to minimize the liquefaction of argon, nitrogen and trace gases, and to purge the system. In another embodiment, condenser parameters are controlled in certain ranges and a unique condenser design is also disclosed. Also disclosed is a representative method for controlling the system using a microprocessor with a database and control functions which senses various parameters relating to the liquefaction, provides the microprocessor with the sensed parameters, calculates optimal conditions, and controls the liquefaction process.

    摘要翻译: 本发明涉及一种从气体浓缩器提供便携式氧气的安全性和价格较低的方法,用于不希望被固定式机器束缚或受现有氧气技术限制的患者。 在一个优选实施例中,本发明从气体浓缩器中分离出一些过剩容量的气流,然后通过液化将其储存。 然后可以将储存的气体用作便携式电源。 由氧浓缩器产生的氧气流的一部分被引导到冷凝器,该冷凝器使用低温冷却器接收和液化氧气。 储存杜瓦瓶用于储存由冷凝器液化的氧气。 然后将液体选择性地转移到较小的便携式杜瓦瓶中。 控制器可用于监测液化参数,包括氧浓度,杜瓦瓶中的液氧量,以及用于控制液氧生成和转移的参数。 在一个实施例中,进入冷凝器的流量被选择为超过冷凝器的容量以最小化氩气,氮气和痕量气体的液化并清除系统。 在另一个实施例中,冷凝器参数被控制在一定范围内,并且还公开了独特的冷凝器设计。 还公开了一种使用具有数据库和控制功能的微处理器来控制系统的代表性方法,该功能检测与液化有关的各种参数,向微处理器提供所感测的参数,计算最佳条件并控制液化过程。

    Gas liquifier
    7.
    发明授权
    Gas liquifier 有权
    燃气液化器

    公开(公告)号:US08671698B2

    公开(公告)日:2014-03-18

    申请号:US11869810

    申请日:2007-10-10

    申请人: Chao Wang

    发明人: Chao Wang

    摘要: A cryocooler for liquefying gas in which the neck of the dewar or cryostat includes a cold end of a cryocooler with the first stage cooling station, the first stage regenerator, the second stage cooling station, the second stage regenerator, and a condenser thermally coupled to the second cooling station. Radiation baffles are also present within the neck portion of the dewar between the storage portion for the dewar and the condenser, such that when the cryocooler is turned off, the radiation baffles reduce heat radiation on the cryogen in the storage section of the dewar.

    摘要翻译: 用于液化气体的低温冷却器,其中杜瓦瓶或低温恒温器的颈部包括具有第一级冷却站的冷却器的冷端,第一级再生器,第二级冷却站,第二级再生器和冷凝器, 第二个冷却站。 辐射挡板也存在于杜瓦瓶的储存部分和冷凝器之间的杜瓦瓶的颈部内,使得当低温冷却器关闭时,辐射挡板减少杜瓦瓶的储存部分中的冷冻剂上的热辐射。

    ARRANGEMENT FOR ACOUSTICAL PHASE CONVERSION
    8.
    发明申请
    ARRANGEMENT FOR ACOUSTICAL PHASE CONVERSION 审中-公开
    声学相变换装置

    公开(公告)号:US20110243796A1

    公开(公告)日:2011-10-06

    申请号:US13130922

    申请日:2009-11-26

    申请人: Bengt Ovelius

    发明人: Bengt Ovelius

    IPC分类号: B06B1/00

    摘要: A method and an arrangement for phase conversion. The arrangement has a space including a working gas and is arranged to include a generated standing sound wave, whereby said sound wave is generated such that the sum of added and consumed wave energy is greater than or equal to zero. Furthermore, the arrangement has a valve mechanism for provision and outflow of a quantity of a working gas or composition, including at least one substance, in the space and is arranged to work synchronously with the generated sound wave. The generated sound wave exposes the working gas or composition to pressure and temperature changes, whereby a gas compression creates an elevated temperature and a gas decompression creates a reduced temperature; and whereby a phase conversion, caused by the pressure and temperature changes, is obtained.

    摘要翻译: 一种用于相位转换的方法和装置。 该装置具有包括工作气体的空间,并且被布置成包括产生的立体声波,由此产生所述声波,使得相加和消耗的波能量之和大于或等于零。 此外,该装置具有阀机构,用于在空间中提供和流出一定量的包括至少一种物质的工作气体或组合物,并且被布置成与产生的声波同步地工作。 所产生的声波将工作气体或组合物暴露于压力和温度变化,由此气体压缩产生升高的温度,并且气体减压产生降低的温度; 从而获得由压力和温度变化引起的相变。