Abstract
The article solves problem of synthesizing a lever-cam motion transducer that converts rotary motion of input shaft of a rotary pump into motion of its vanes required for volumetric pumping of gases and liquids. Analytical expressions for theoretical profile of cam of lever-cam transducer of the movement of rotary vane pump are obtained. The cam profile was built according to analytical expressions.
Highlights
The creation of a pump that provides volumetric pumping of a working fluid regardless of the working fluid type that enters the pump inlet is very important for a number of industriesAn alternative to existing types of pumps with volumetric pumping is a rotary vane pump with a levercam motion converter [1] – [3].Structurally pump consists of a rotary vane group and a lever-cam motion transducer (Fig. 1).The rotor-vane group consists of a body and two coaxial rotors, each of which carries a vane of two diametrically located pistons
It is required to synthesize a cam profile that would ensure that one vane stops, while other blade would move at which the angle ψψ between axes of vanes either decreases from value ψψmmmmmm to ψψmmmmmm, or increases from ψψmmmmmm to ψψmmmmmm, and the movement of the inlet isolated volume to the outlet/inlet area
The configuration of rhomboid is completely determined by links length 2ll and the angles φφ1 and φφ2 of vanes axes CC1CC3 and CC2CC4 with the x-axis
Summary
The creation of a pump that provides volumetric pumping of a working fluid regardless of the working fluid type (gas, liquid and gas-liquid mixture) that enters the pump inlet is very important for a number of industries (gas, oil, pharmaceutical, etc.). An alternative to existing types of pumps with volumetric pumping is a rotary vane pump with a levercam motion converter [1] – [3]. Pump consists of a rotary vane group and a lever-cam motion transducer (Fig. 1). Volume of chamber opposite open inlet window increases to a maximum value and is filled with a working fluid. This volume of working fluid with closed inlet port is transferred to outlet zone, and with open outlet port, release occurs with a decrease in chamber volume to a minimum value. Perminov A., et al Synthesis of a Lever-Cam Motion Transducer for a Rotary Vane Pump. The type of working fluid affects only power of drive motor
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