Efficiency and Low Speed Behavior of the Floating Cup Pump
Efficiency and Low Speed Behavior of the Floating Cup Pump
复制标题
DOI：
10.4271/2004-01-2653
复制
发表时间：
2004-10
期刊：
影响因子：
--
通讯作者：
P. Achten;M. A. Schellekens;H. Murrenhoff;M. Deeken
中科院分区：
文献类型：
--
作者：
P. Achten;M. A. Schellekens;H. Murrenhoff;M. Deeken
浮杯原理是一种新的用于静压机器的轴向活塞概念。它具有大量的活塞，排列在一个双环，背靠背配置。此外，活塞被锁定在中心转子上，每个活塞都有自己的杯状气缸。这些“杯子”漂浮在桶板上并由桶板支撑。活塞有一个球形的冠，这是直接密封在气缸没有活塞环。新泵的第一个原型已经建造和测试。为了进行比较，还测试了最先进的滑靴型泵和弯轴泵（均为恒定排量，28 cc/rev）。稳态性能试验证明了浮杯原理的高效性。在低速测试中，泵作为电机进行测试，证实了浮杯原理的低摩擦损失和高启动扭矩。此外，大量的活塞大大减少了扭矩变化。本文描述和分析的测量结果。
The floating cup principle is a new axial piston concept for hydrostatic machines. It features a high number of pistons, arranged in a double ring, back-to-back configuration. Furthermore the pistons are locked onto a central rotor and each piston has its own cuplike cylinder. These 'cups' are floating on and supported by a barrel plate. The pistons have a ball shaped crown, which is sealing directly on the cylinder without a piston ring. A first prototype of the new pump has been built and tested. For comparison a state-of-the-art slipper type pump and a bent axis pump (both constant displacement, 28 cc/rev) have been tested as well. The steady-state performance tests have proven the high efficiency of the floating cup principle. The low speed tests, during which the pumps are tested as a motor, have confirmed the low friction losses and high starting torque of the floating cup principle. Furthermore the high number of pistons strongly reduces the torque variations. This paper describes and analyzes the outcome of the measurements.