The major source of all types of noise in hydraulic systems is usually the positive displacement pump. Fluidborne noise (pulsations) produced by the pump are particularly troublesome because almost all system components convert it into airborne noise. The most straightforward means of reducing fluidborne noise is to use a quiet pump.This paper reports the development of an external gear pump which utilizes controlled leakage to drastically reduce its flow ripple output. The theoretical basis for the technique is presented, along with an example of pump design using controlled leakage. An experimental evaluation is presented demonstrating the effectiveness of the technique.
A Ripple — Free Gear Pump Using Controlled Leakage
Sae Technical Papers
1980 SAE International Off-Highway and Powerplant Congress and Exposition ; 1980
1980-09-01
Aufsatz (Konferenz)
Englisch
Gears , Hydraulic systems , Pumps , Noise
A Ripple-Free Gear Pump Using Controlled Leakage
Kraftfahrwesen | 1980
|SAE Technical Papers | 2002
|Kraftfahrwesen | 2002
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