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    • 7. 发明授权
    • Gear and a fluid machine with a pair of gears
    • 齿轮和具有一对齿轮的流体机械
    • US06709250B1
    • 2004-03-23
    • US10009717
    • 2002-06-07
    • Wei Xiong
    • Wei Xiong
    • F03C200
    • F01C1/082F01C1/084F01C1/102F01C17/02F01C20/12F01C21/006F01C21/18F04C2/123F04C2240/30F04C2250/10F04C2270/12Y10T74/19972
    • A kind of gear is provided with shorter teeth, transition teeth and at least one longer tooth. The cross-section of the longer tooth is of a hawk beak shape, and the profile of the longer tooth is smoothly connected in series by a convex section, a tip section, a concave section, and a leading section The two sides of the longer tooth are each provided with a transition tooth which neighbors a shorter tooth on the opposite side of the longer tooth. The pair of engaging gears according to this invention have advantages of reducing the fluid leakage, canceling the inertia of the rotors, and minimizing the vibration and noise. This invention also discloses a fluid machine for conveying, compressing or expanding liquid or gaseous fluids, which includes a casing comprising a housing, an upper end cover and a lower end cover. At least one pair of engaging gears which includes one driving rotor according to this invention and one driven rotor according to this invention is accommodated in the housing. As a result, the leakage between the rotors can be reduced, therefore the compression ratio can be improved. In addition, over compression and under compression can be avoided in operation.
    • 一种齿轮具有较短的齿,过渡齿和至少一个较长的牙齿。 长齿的横截面为鹰嘴形状,长齿的轮廓通过凸部,前端部,凹部和前端部分串联连接。两侧较长 齿各自设置有过渡齿,该过渡齿在较长的齿的相对侧邻近较短的齿。 根据本发明的一对啮合齿轮具有减少流体泄漏,消除转子惯性并使振动和噪声最小化的优点。 本发明还公开了一种用于输送,压缩或膨胀液体或气体流体的流体机械,其包括壳体,其包括壳体,上端盖和下端盖。 根据本发明的包括一个驱动转子和根据本发明的一个从动转子的至少一对啮合齿轮容纳在壳体中。 结果,可以减小转子之间的泄漏,因此可以提高压缩比。 此外,在操作中可以避免过度压缩和欠压缩。