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Improved Design of Sprocket Pump

Ricardo Chicurel  José León  
【摘要】:正The sprocket pump, patented in 1988, is used in applications such as fuel pumping in boilers, transfer of fluids, water pumping in treatment plants, and oil pumping in lubrication systems. Design modifications to improve its performance are described. These include: (1) changing the cross section of the pins that produce the pumping action, from circular to a combination of circular arcs and straight segments, in order to achieve surface rather than line sealing; (2) introduction of an extension to the sprocket wheel resulting in a hydrostatically balanced condition; and (3) providing pressure zones on the back face of the drive disk to partially balance the force due to the pressure distribution on the front face.

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