Abstract Advancements related to the correlation between pump design parameters and the kinematic flow ripple in balanced vane pumps are addressed in the present work. In particular, the study focuses the attention on the influence of the vane geometry on the oscillations of the flow rate produced by the volume variation of both under-vane pockets and displaced chambers, that is known as one of the most relevant sources of noise in hydraulic systems. The working principle of the machine is detailed and used as starting point to deduce analytical correlations describing both vane kinematics and delivery flow rate ripple. The set of results that can be achieved with the obtained formulation is evaluated by means of a nondimensional parametric study including the two main design parameters defining the vane geometry, i.e. thickness and tip radius. The resulting trends demonstrate that the theoretical delivery flow ripple is closely related to the vane design and the cam ring shape profile.

中文翻译：

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平衡叶片泵叶片几何形状与理论流量脉动的关系

摘要 目前的工作涉及泵设计参数与平衡叶片泵运动学流动脉动之间相关性的相关进展。特别是，该研究将注意力集中在叶片几何形状对由叶片下袋和位移室的体积变化产生的流速振荡的影响上，这被称为最相关的噪声源之一。液压系统。详细介绍了机器的工作原理，并将其用作推导描述叶片运动学和输送流量波动的分析相关性的起点。通过无量纲参数化研究，包括定义叶片几何形状的两个主要设计参数，即厚度和叶尖半径，可以对使用所获得的公式实现的一组结果进行评估。