Browse Publications Technical Papers 2019-26-0300
2019-01-09

Study of Effect of Air Content in Lubrication Oil on Gerotor Pump Performance Using CFD Simulations 2019-26-0300

Fill speed and volumetric efficiency are two important performance characteristics for positive displacement pumps. Gerotor pump is a positive displacement internal type gear pump with a smaller inner rotor and an internal ring rotor. Dissolved air and entrained air content in the lubrication oil significantly affects the filling characteristics of suction chambers of the Gerotor pump. This leads to reduction in the pump flow rate and fill speed which limits maximum operating speed of the pump. In this paper, effect of dissolved air and entrained air is studied by modeling cavitation in detail using PumpLinx® CFD software and the importance of these parameters on Gerotor pump performance is described. The simulated results are validated with experiments with more than 95% accuracy in predictions. Key takeaway of present work suggests that design engineers should take dissolved air and entrained air effects into consideration while designing a pump.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Effects of Timing and Odd/Even Number of Teeth on Noise Generation of Gerotor Lubricating Pumps for IC Engines

2000-01-2630

View Details

TECHNICAL PAPER

Overview on Design of Electric Coolant Pump for Automotive Application

2019-26-0114

View Details

TECHNICAL PAPER

High Pressure Gear Pumps

920925

View Details

X