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    • 144. 发明授权
    • Synthetic method for forming ammonium dinitrammide (ADN)
    • 形成二硝基铵(ADN)的合成方法
    • US5659080A
    • 1997-08-19
    • US653833
    • 1996-05-28
    • Shigeru SuzukiShigefumi MiyazakiHideo HatanoKazuo ShiinoToshio Onda
    • Shigeru SuzukiShigefumi MiyazakiHideo HatanoKazuo ShiinoToshio Onda
    • C01B21/20C06B25/00C06B31/00C07C241/00
    • C06B31/00
    • A synthetic method for ammonium dinitramide comprising a process for the formation of urea nitrate by reacting urea with diluted nitric acid; a process for the formation of nitrourea by reacting the urea nitrate with sulfuric acid; a process of reacting the nitrourea with a nitration reagent such as nitronium tetrafluoroborate, and then adding ammonia gas to the reaction mixture; and a process of filtering off the resultant by-product of crystals, concentrating its filtrate, adding ethyl acetate to this concentrated filtrate, filtering off the precipitate, concentrating again its filtrate under vacuum, and finally separating ADN as crystals by adding chloroform to the concentrated filtrate.Effects:ADN can be synthesized with the following features: urea as starting material is readily available and is cheaper in price, the process is uncomplicated and more simplified, the operation is safe, and the final product gives a high yield.
    • 二硝基铵的合成方法,其包括通过使尿素与稀硝酸反应形成尿素硝酸盐的方法; 通过使硝酸尿素与硫酸反应形成硝基脲的方法; 使硝基脲与硝化试剂如四氟硼酸硝鎓反应,然后向反应混合物中加入氨气的方法; 过滤掉所得到的晶体副产物,浓缩滤液,向该浓缩滤液中加入乙酸乙酯,滤出沉淀物,再次浓缩滤液,真空浓缩,最后通过向浓缩的 滤液。 效果:ADN可以合成,具有以下特点:尿素作为起始原料易于获得,价格便宜,工艺简单,操作更简便,最终产品成品率高。
    • 147. 发明授权
    • Automotive heating apparatus
    • 汽车加热装置
    • US5230326A
    • 1993-07-27
    • US967017
    • 1992-10-27
    • Shigeru SuzukiKunifumi GotoWataru MinamiNobuaki HoshinoShigeki Kanzaki
    • Shigeru SuzukiKunifumi GotoWataru MinamiNobuaki HoshinoShigeki Kanzaki
    • B60H1/03B60H1/14F04C15/00
    • B60H1/14B60H1/038F04C15/0096
    • An automotive heating apparatus includes a cylinder block forming an enclosed space therein, the gear pump means enclosed in the cylinder block, and a water jacket formed in the cylinder block outside the gear pump means. The gear pump means includes an input shaft connected to an engine and disposed in the enclosed space, a driving gear fixed to the input shaft and disposed in the enclosed space, a driven gear meshing with the driving gear and disposed in the enclosed space, and a viscous fluid sealed in the enclosed space. In the automotive heating apparatus, the viscous fluid is forcibly transferred from a suction side to a discharge side by the rotation of the driving gear and the driven gear, and at the same time there is caused a back flow of the viscous fluid resulting from an internal leakage from the discharge side to the suction side. Thus, the automotive heating apparatus stirs and shears the viscous fluid and increases the viscous fluid internal energy in the enclosed space, and it converts the heat generated by the viscous fluid to a temperature increment of circulating water through the water jacket. Hence, the automotive heating apparatus can not only achieve the heating in the automotive passenger room relatively quickly after starting the engine, but also produces a good on-boardability and a reduction in the manufacturing cost.
    • 汽车加热装置包括在其中形成封闭空间的气缸体,封闭在气缸体中的齿轮泵装置和形成在齿轮泵装置外部的气缸体中的水套。 齿轮泵装置包括连接到发动机并设置在封闭空间中的输入轴,固定到输入轴并设置在封闭空间中的驱动齿轮,与驱动齿轮啮合并设置在封闭空间中的从动齿轮,以及 密封在封闭空间中的粘性流体。 在汽车加热装置中,通过驱动齿轮和从动齿轮的旋转,将粘性流体从吸入侧强制地输送到排出侧,同时,由 从排出侧到吸入侧的内部泄漏。 因此,汽车加热装置搅动和剪切粘性流体并增加封闭空间中的粘性流体内部能量,并且将由粘性流体产生的热量转换成通过水套的循环水的温度增量。 因此,汽车加热装置不仅可以在启动发动机之后相对较快地实现汽车乘客室内的加热,而且还能够实现良好的车载性和制造成本的降低。
    • 150. 发明授权
    • Water pump
    • 水泵
    • US5125795A
    • 1992-06-30
    • US597156
    • 1990-10-15
    • Shigeru SuzukiSatoru IkedaTakayuki UsuiYutaka YamadaIsamu Suzuki
    • Shigeru SuzukiSatoru IkedaTakayuki UsuiYutaka YamadaIsamu Suzuki
    • F04D29/12F04D29/42
    • F04D29/426F04D29/126F05B2260/603
    • A water pump including a pump housing having a central axial through-hole; a pump shaft inserted in the through-hole; a pulley fixed on the pump shaft at one end thereof; an impeller fixed on the pump shaft at the other end thereof; a bearing fitted with the through-hole for rotatably supporting the pump shaft in the vicinity of the pulley; a water seal provided between the impeller and the bearing for sealing water in a pump chamber where the impeller is installed, wherein an intermediate chamber is defined among the pump housing, the bearing and the water seal. A first ventilation passage is formed in a wall of the pump housing so as to induce an atomspheric air into the intermediate chamber. A second ventilation passage is formed in the wall of the pump housing so as to discharge a water vapor in the intermediate chamber to an outside of the pump housing. A vacuum generating portion is formed by rotation of the pulley in the vicinity of an outlet of the second ventilation passage opening to a space defined between the pulley and the pump housing, whereby when the pulley is rotated, the water vapor in the intermediate chamber is positively ventilated through the second ventilation passage by vacuum to be generated in the vacuum generating portion.
    • 一种水泵,包括具有中心轴向通孔的泵壳体; 插入通孔中的泵轴; 滑轮,其一端固定在泵轴上; 在另一端固定在泵轴上的叶轮; 装配有用于在所述滑轮附近可旋转地支撑所述泵轴的所述通孔的轴承; 设置在叶轮和轴承之间的水封,用于密封安装叶轮的泵室中的水,其中在泵壳体,轴承和水封之间限定中间室。 第一通风通道形成在泵壳体的壁中,以便将空气引入中间室。 第二通风通道形成在泵壳体的壁中,以将中间室中的水蒸气排放到泵壳体的外部。 通过使皮带轮在第二通气通道开口的出口附近旋转到滑轮与泵壳体之间的空间形成真空产生部分,由此当滑轮旋转时,中间室中的水蒸气为 通过在真空产生部分中产生的真空通过第二通风通道正向通风。