金融界2025年5月31日消息，国家知识产权局信息显示，ITT制造企业有限责任公司申请一项名为“包含叶轮的流体泵”的专利，公开号CN120077202A，申请日期为2022年10月。
专利摘要显示，一种叶轮组合件，其包含：叶轮壳体，其具有用于接收和排出工作流体的壳体入口和壳体出口；以及叶轮，其位于所述叶轮壳体内且可相对于所述叶轮壳体旋转。所述叶轮具有用于接收所述工作流体的叶轮入口、形成与所述叶轮入口连通的多个叶轮流道的多个叶轮片，以及各自与所述叶轮流道中的一个连通以排出所述工作流体的多个叶轮出口。所述叶轮包含叶轮轮毂，所述叶轮轮毂具有形成轮毂流体通道以接收辅助流体的一个或多个轮毂叶片，其中所述轮毂流体通道与所述多个叶轮流道中的至少一个连通且配置成引起所述叶轮轮毂的旋转。成角度的轮毂叶片和/或倾斜的定向推力平衡开口配置成引起所述叶轮轮毂的旋转。
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