Refrigerant compositions
    3.
    发明授权
    Refrigerant compositions 有权
    制冷剂组合物

    公开(公告)号:US6117356A

    公开(公告)日:2000-09-12

    申请号:US242807

    申请日:1999-05-07

    IPC分类号: F25B1/00 C09K3/30 C09K5/04

    摘要: ?PPA composition is described which comprises carbon dioxide (CO2), at least one hydrofluorocarbon selected from the group consisting of 1,1,1,2tetrafluoroethane (R-134a), 1,1,2,2-tetrafluoroethane (R-134) and 1,1difluoroethane (R-152a), and at least one hydrofluorocarbon selected from the group consisting of 1,1,1,3,3,3-hexafluoropropane (R-236fa) and 1,1,1,2,3,3-hexafluoropropane (R-236ea). The composition may additionally comprise at least one hydrocarbon and can be used as a replacement for refrigerant R-12 in automobile air conditioning and domestic refrigeration systems.

    摘要翻译: PCT No.PCT / GB97 / 02198 Sec。 371日期1999年5月7日 102(e)日期1999年5月7日PCT 1997年8月18日PCT公布。 第WO98 / 08912号公报 日期:1998年3月5日描述了一种组合物,其包含二氧化碳(CO 2),至少一种选自1,1,1,2-四氟乙烷(R-1​​34a),1,1,2,2-四氟乙烷 (R-134)和1,1-二氟乙烷(R-1​​52a),和至少一种选自1,1,1,3,3,3-六氟丙烷(R-236fa)和1,1,1 ,2,3,3-六氟丙烷(R-236ea)。 该组合物可另外包含至少一种烃,并可用作汽车空调和家用制冷系统中制冷剂R-12的替代物。

    Heat pumps
    7.
    发明授权
    Heat pumps 失效
    热泵

    公开(公告)号:US4559154A

    公开(公告)日:1985-12-17

    申请号:US636272

    申请日:1984-07-31

    申请人: Richard L. Powell

    发明人: Richard L. Powell

    CPC分类号: C09K5/047

    摘要: An absorption heat pump system wherein the working fluid is a saturated fluorohydrocarbon or fluorohydrocarbon ether having from 3 to 5 carbon atoms.

    摘要翻译: 一种吸收热泵系统,其中工作流体是具有3至5个碳原子的饱和氟代烃或氟代烃醚。

    Laser weapon simulator apparatus with firing detection system
    9.
    发明授权
    Laser weapon simulator apparatus with firing detection system 失效
    具有点火检测系统的激光武器模拟器装置

    公开(公告)号:US5591032A

    公开(公告)日:1997-01-07

    申请号:US409336

    申请日:1995-03-23

    IPC分类号: F41G3/26

    CPC分类号: F41G3/2683

    摘要: A laser weapon simulator apparatus for practice in the shooting of a firearm at a target having reflective material thereon. The apparatus includes a laser beam transmitter that is actuable to emit a laser beam of short duration, a laser beam receiver for collecting and processing a reflected portion of the laser beam, circuitry for detecting the emission of the laser beam by the transmitter, and a visual display. The receiver includes circuitry adapted to produce a "hit" signal upon receiving the reflected portion of the laser beam and the detecting circuitry is adapted to produce a "try" signal in response to the emission of the laser beam. The visual display produces an output "hit" display signal upon the concurrent receipt of a "hit" signal from the receiver and a "try" signal from the detecting circuitry.

    摘要翻译: 一种激光武器模拟装置,用于在其上具有反光材料的目标枪上射击枪械。 该装置包括可致动以发射短持续时间的激光束的激光束发射器,用于收集和处理激光束的反射部分的激光束接收器,用于检测由发射器发射激光束的电路,以及 视觉显示。 接收机包括适于在接收到激光束的反射部分时产生“命中”信号的电路,并且检测电路适于响应于激光束的发射而产生“尝试”信号。 视觉显示器在从接收器同时接收“命中”信号和来自检测电路的“尝试”信号时产生输出“命中”显示信号。