Optimization Design of Pre-boost Zone for Spherical Valve Pair of Miniature Axial Piston Pump
In order to improve the flow distribution performance of the spherical valve pair of the high-speed and high-pressure miniature axial piston pump,taking the spherical valve pair of the unidirectional rotating miniature axial piston pump as the research ob-ject,the structure of pre-boost zone was optimized.The mathematical models of the instantaneous pressure in the pre-boost transition zone,the flow area of the triangular groove and the depth angle of the triangular groove were established.Then particle swarm optimiza-tion algorithm was used to optimize the structure of the pre-boost zone.Finally,the original model and the optimized model were impor-ted into Fluent for comparative analysis.The structure optimization results are as follows:depth angle β=16.1°,width angle α=56.3°,opening angle φ=12.7°,error angle φ0=1.2°.After optimization,the pressure pulsation rate in the pre-boost overpressure zone is re-duced by 4.6％compared with the original structure,the flow distribution performance of the spherical valve pair of the miniature axial piston pump is improved.
miniature axial piston pumpspherical valve pairpre-boost zoneoptimization research
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