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Silencer for Hydraulic Piston Pump Pressure Pulsations
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English
Abstract
The hydraulic piston pumps that are used on off-highway vehicles create pressure pulsations that may generate excessive noise in the vehicle. The most effective method of reducing this noise is to decrease the amplitude of the pressure pulsations leaving the pump by using a reactive type of silencer. A reactive silencer changes the load impedance and reflects the pulsations back to the pump. This paper develops the insertion loss for a specific type of side branch resonator, called a cross-loop attenuator, and describes the design parameters that will result in the best insertion loss for a piston pump application.
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Citation
Strunk, R., "Silencer for Hydraulic Piston Pump Pressure Pulsations," SAE Technical Paper 911759, 1991, https://doi.org/10.4271/911759.Also In
References
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- Molten, G. R. “Techniques for Reducing Fluid Borne Noise from Gear Pumps and Their Circuits” SAE Paper # 871683 1987
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- Oldenberger, R. Goodson R. E. “Simulation of Hydraulic Line Dynamics by Use of Infinite Products” Trans. ASME, Journal of Basic Engineering March 1964 1 10
- Morgan, G. W. Kiely J. P. “Wave Propagation in a Viscous Liquid Contained in a Flexible Tube” The Journal of the Acoustical Society of America 26 3 May 1954