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    • 1. 发明授权
    • Lubricant for refrigerators using ammonia refrigerant
    • 使用氨制冷剂的冰箱的润滑剂
    • US06335311B1
    • 2002-01-01
    • US09508961
    • 2000-03-20
    • Masato NamikiGoro YamamotoTakashi KaimaiHitoshi Takahashi
    • Masato NamikiGoro YamamotoTakashi KaimaiHitoshi Takahashi
    • C10M14526
    • C10M171/008C10M107/34C10M2201/00C10M2201/061C10M2201/16C10M2201/18C10M2209/107C10N2220/02C10N2240/00C10N2240/22C10N2240/30C10N2240/50C10N2240/52C10N2240/54C10N2240/56C10N2240/58C10N2240/60C10N2240/66
    • To provide a polyalkylene glycol-based refrigerant oil for refrigerators using ammonia as a refrigerant. The present invention provides a lubricant for refrigerators using ammonia refrigerant, comprising polyethers selected from the group consisting of a polyether represented by the following general formula (1) X—{—O—(AO)n—H}p  (1) (wherein X is a residue of a monool or polyol from which a hydroxyl group is eliminated; (AO)n is a polyoxyalkylene group formed by copolymerization of EO and an AO having 3 or more carbon atoms; n is 2 or more; and p is a valence of X) and having 50% or more of secondary hydroxyl groups among the hydroxyl groups located at the terminal of the structure based on the total hydroxyl groups, or a polyether represented by the following general formula (2) X—{—O—(AO1)a—(AO2)b—H}p  (2) (wherein X is a residue of a monool or polyol from which a hydroxyl group is eliminated; (AO1)n is a polyoxyalkylene group formed by copolymerization of ethylene oxide and propylene oxide and/or butylene oxide; AO2 is an oxyalkylene group having 3 or more carbon atoms; a is 2 or more; b is 1 or more; and p is a valence of X).
    • 提供一种使用氨作为制冷剂的制冷剂的聚亚烷基二醇系冷冻机油。本发明提供一种使用氨制冷剂的制冷机的润滑剂,其包含选自下述通式(1)表示的聚醚的聚醚(其中, X是除去羟基的一元醇或多元醇的残基;(AO)n是通过EO和具有3个或更多个碳原子的AO的共聚形成的聚氧化烯基; n是2以上; p是 X的化合价),并且在基于全部羟基的结构的末端的羟基中具有50%以上的仲羟基,或由以下通式(2)表示的聚醚(其中X为残基 的一元醇或多元醇,其中羟基被除去;(AO1)n是通过环氧乙烷和环氧丙烷和/或环氧丁烷的共聚形成的聚氧化烯基团; AO2是氧化烯 具有3个以上碳原子的基团; a是2以上; b为1以上; 并且p是X的化合价)。
    • 5. 发明授权
    • Toll collection system
    • 收费系统
    • US5872525A
    • 1999-02-16
    • US596866
    • 1996-02-09
    • Kazuo FukasawaMasato NamikiHideaki KojimaKazutoshi NaitoKazuyuki Hashimoto
    • Kazuo FukasawaMasato NamikiHideaki KojimaKazutoshi NaitoKazuyuki Hashimoto
    • G07B15/06G08G1/00
    • G07B15/063
    • A radio communication system is provided at an entrance gate of traffic facilities for radio communicating with a communication device carried by a vehicle. The system includes a first communication unit for transmitting first entrance data relative to the entrance gate of the traffic facilities to the communication device carried by the vehicle coming into the entrance gate, a discriminating unit for determining a vehicle type showing a kind of incoming vehicle, and a second communication unit, provided on an opposite side of the entrance gate from the first communication unit, along a direction of progress of the vehicle, for transmitting a second entrance data including data relative to the determined vehicle type to the communication device when the first communication unit transmits the first entrance data to the communication device.
    • 无线电通信系统设置在用于与由车辆携带的通信设备进行无线电通信的交通设施的入口处。 该系统包括第一通信单元,用于将相对于交通设施的入口的第一入口数据发送到进入入口的车辆携带的通信设备;判别单元,用于确定表示进入车辆的种类的车辆类型, 以及第二通信单元,其沿着所述车辆的进入方向设置在所述入口门的与所述第一通信单元的相反侧的相对侧,用于当所述第一通信单元的所述第一入口数据包括关于所确定的车辆类型的数据时发送到所述通信设备, 第一通信单元将第一入口数据发送到通信设备。