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    • 2. 发明授权
    • Electrical insulating oil
    • 电绝缘油
    • US4755275A
    • 1988-07-05
    • US698327
    • 1985-02-05
    • Atsushi SatoYoshikazu MuraiTatsuo YamaguchiKanji MochizukiKunio Sugisawa
    • Atsushi SatoYoshikazu MuraiTatsuo YamaguchiKanji MochizukiKunio Sugisawa
    • C10G69/12C10M101/02H01B3/22C10L1/10
    • H01B3/22C10G69/12C10M101/02
    • A process for preparing an electrical insulating oil comprising a reaction product having a boiling range of higher than 260.degree. C. obtained by treating a hydrocarbn feed at a reaction temperature in the range of 0.degree. to 300.degree. C. in liquid phase in the presence of an acid catalyst, said hydrocarbon feed comprising a distillate from a thermal-cracked oil obtained in a thermal cracking process for thermally cracking a petrolic heavy residual oil at a temperature not lower than 400.degree. C. and not exceeding 700.degree. C., said distillate consisting mainly of hydrocarbons boiling in the range of 120.degree. to 290.degree. C. and said distillate containing at least 30 weight percent of paraffins and at least 10 weight percent of aliphatic olefins, and separating said reaction product from the resulting mixture containing at least said reaction product and unreacted hydrocarbons.
    • 一种制备电绝缘油的方法,该方法包括沸点范围高于260℃的反应产物,该反应产物通过在0-300℃范围内的反应温度下处理烃原料, 的酸催化剂,所述烃进料包含来自在热裂解方法中获得的热裂化油的馏出物,用于在不低于400℃且不超过700℃的温度下热裂化石油重质残油,所述 主要由120-290℃范围内沸腾的烃组成的馏出物,所述馏出物含有至少30重量%的链烷烃和至少10重量%的脂族烯烃,并将所得反应产物与至少含有至少 所述反应产物和未反应的烃。
    • 9. 发明申请
    • TRACTOR
    • 拖拉机
    • US20090223312A1
    • 2009-09-10
    • US11988421
    • 2005-09-30
    • Tatsuo Yamaguchi
    • Tatsuo Yamaguchi
    • B60K17/28
    • B60K17/28B60Y2200/221F16H37/043
    • The present invention can easily determine a specification which includes a PTO clutch mechanism or a specification which includes no PTO clutch mechanism. According to the present invention, in a tractor which detachably mounts a PTO portion on a transmission portion, a PTO clutch mechanism is arranged in the inside of the PTO portion. Accordingly, it is possible to easily determine the specification which includes the PTO clutch mechanism or the specification which includes no PTO clutch mechanism depending on whether the PTO clutch mechanism is preliminarily assembled in the PTO portion or not in a stage that the PTO portion is assembled and, at the same time, it is possible to easily complete the assembling by merely mounting the PTO portion on the transmission portion. Further, by taking steps opposite to the above-mentioned steps, it is possible to easily perform the maintenance of the PTO clutch mechanism or the like.
    • 本发明可以容易地确定包括PTO离合器机构或不包括PTO离合器机构的规格的规格。 根据本发明,在可拆卸地将PTO部分安装在传动部分上的拖拉机中,PTO离合器机构布置在PTO部分的内部。 因此,根据PTO离合器机构是否预先组装在PTO部分中,在PTO部分组装的阶段中,可以容易地确定包括PTO离合器机构或不包括PTO离合器机构的规格的规格 同时,通过仅将PTO部分安装在传动部分上,可以容易地完成组装。 此外,通过与上述步骤相反的步骤,可以容易地执行PTO离合器机构的维护等。