Study of the Dynamic Characteristics of Piston Chamber Pressure and its Optimizing

Abstract:

In order to develop a new type of high-performance axial piston pump, the impact of the dynamic response characteristics of piston chamber pressure to the stability of cylinder block were analyzed. This paper a new type of valve plate which combined two fixed throttling grooves with a triangular groove (called three-level gain) was put forward so as to reducing the excessive pressure adjustment of the dynamic response of piston chamber pressure and improving the stability of cylinder block. The simulation results indicate that not only the cavitation is reduced, but also the stability of the dynamic response of piston chamber pressure is remained at various swash plate angle which makes it applicable to variable piston pump. The results also indicate that the flow pulsation of variable displacement pump is significantly decreased in different operating conditions.

• Periodical: Applied Mechanics and Materials (Volumes 602-605)
• Pages: 277-282
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.602-605.277
• Online since: August 2014
• Authors: Bin Qu Yan, Shu Mei Chen*, Chuan Ming Chen
• Keywords: Axial Piston Pump, Pressure of Piston Chamber, Pressure Pulsation, Valve Plate

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