Cavitation is a common phenomenon in axial piston pumps that adversely affects their performance and reliability. The conventional approach to reducing cavitation involves increasing the inlet pressure. However, additional equipment is required to pressurize the inlet pipeline, which complicates the system and brings energy losses. This study introduces and analyzes a tapered cylinder block in a piston pump to mitigate cavitation. This method only requires modifying the inclination angle of the piston cylinder bores without additional power source devices. Computational fluid dynamics models of different tapered cylinder block designs were established to analyze the effect of piston bore inclination direction on cavitation. Simulations were then conducted for various tapered cylinder configurations. The results demonstrate that the inclined bore design can effectively reduce cavitation by utilizing the centrifugal effects of rotating fluid.
Huang et al. (Fri,) studied this question.
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