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    • 2. 发明授权
    • Supercharger and housing, bearing plate and outlet port therefor
    • 增压器和外壳,轴承座和出口端口
    • US5527168A
    • 1996-06-18
    • US285256
    • 1994-08-03
    • Ben S. Juday
    • Ben S. Juday
    • F04C18/18F01C21/10F04C18/16F04C29/12F01C1/16
    • F04C29/12F01C21/10F04C18/16F04C2250/102
    • A rotary blower (11) of the backflow type is disclosed including a housing portion (50), an inlet end wall portion (49), and a bearing plate (15), the housing portion defining cylindrical chambers (31,33) within which are disposed meshed rotors (35,37). The inlet end wall portion (49) defines an inlet port (51), and the housing portion (50) defines an outlet port (53) including a port end surface (59). The bearing plate (15) defines an end surface (29) and a relief chamber including a relief surface (29R), and the port end surface (59) is disposed in a plane defined by the relief surface (29R). As a result, resistance to the transfer of air through the blower is reduced, thus reducing required drive horsepower, and increasing the isentropic efficiency of the blower.
    • 公开了一种回流式旋转式鼓风机(11),其包括壳体部分(50),入口端壁部分(49)和轴承板(15),壳体部分限定圆柱形腔室(31,33) 设置网状转子(35,37)。 入口端壁部分(49)限定入口(51),并且壳体部分(50)限定包括端口端面(59)的出口端口(53)。 支承板(15)限定了一个端面(29)和一个包括一浮雕表面(29R)的释放腔,并且该端口表面(59)设置在由该浮雕表面(29R)限定的平面内。 结果,减少了通过鼓风机的空气传递的阻力,从而减少了所需的驱动马力,并且提高了鼓风机的等熵效率。