2024年3月15日发(作者：)

专利内容由知识产权出版社提供

专利名称：Volumetric test stand cylinder

monitor/controller

发明人：William Power

申请号：US09305267

申请日：19990504

公开号：US06318167B1

公开日：20011120

专利附图：

摘要：A test device and a process for determining the accuracy of positive

displacement gear pumps includes hydraulic cylinders which are fluidly connected to the

output fluid flow(s) from a test pump. Each outlet flow is directed to a separate hydraulic

cylinder. The test pump is driven by a motor for a preset number of revolutions. The

length of stroke of the piston in each hydraulic cylinder is then determined, which

corresponds to the volume of fluid provided from each pump outlet during the

revolution of the gears in the pump. It can then be determined if the volumetric accuracy

and efficiency of the pump is within acceptable limits.

申请人：PARKER-HANNIFIN CORP.

代理人：Christopher H. Hunter

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