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    • 9. 发明授权
    • Double screw rotor assembly
    • 双螺杆转子总成
    • US06176694B1
    • 2001-01-23
    • US09372674
    • 1999-08-12
    • Hong-Sheng FangZhang-Hua FongHann-Tsong WangCheng-Chan TsaiJiun-Hung ChenMing-Fong Chen
    • Hong-Sheng FangZhang-Hua FongHann-Tsong WangCheng-Chan TsaiJiun-Hung ChenMing-Fong Chen
    • F03C200
    • F04C2/086F04C2/084F04C18/16
    • A power-saving, low-noise double screw rotor assembly, which includes a casing and a pair of screw rotors, wherein the casing has an inside wall defining a compression chamber, an inlet port and an outlet port communicating with the compression chamber. The screw rotors are mounted in the compression chamber and meshed together, each having a spiral thread around the periphery. The thread defines an equidistant pitch. The addendum of the thread defines an outside diameter and is abutted against the inside wall of the casing, the dedendum defines a root diameter. A thread height is defined between the addendum of thread and the dedendum of thread, the thread height gradually reduces in direction from the inlet port toward the outlet port. The dedendum of thread and side walls of the thread of each screw rotor define with the inside wall of the casing at least one transfer chamber having a volume gradually reducing in direction from the inlet port toward the outlet port.
    • 一种节能低噪音的双螺杆转子组件,其包括壳体和一对螺杆转子,其中壳体具有限定压缩室的内壁,入口和与压缩室连通的出口。 螺杆转子安装在压缩室中并啮合在一起,每个螺旋转子围绕周边具有螺旋形螺纹。 螺纹定义了等距离的间距。 螺纹的齿顶限定了外径并且抵靠在壳体的内壁上,齿根限定根直径。 在螺纹齿顶和螺纹齿根之间定义螺纹高度,螺纹高度从入口朝向出口方向逐渐减小。 每个螺杆转子的螺纹和侧壁的螺纹和侧壁的齿根限定了壳体的内壁,至少一个传送室具有从入口朝向出口的方向逐渐减小的容积。