The Balance Shaft/Oil Pump Module for the new Hyundai Sonata NF Inline 4-cylinder engine family combines excellent NVH (noise, vibration and harshness, or “pleasibility”) and power consumption performance with minimized contribution to oil aeration. A two-stage drive ratio step-up and a balance shaft operating shape control strategy help minimize drive system noise emissions. Oil system noise emissions are minimized by dividing work between two gerotor pumps, and by the avoidance of cavitation at high speeds. Oil system performance benefits include high displacement at low speeds without attendant high power consumption or risk of cavitation at high speeds. A jet pump is used to efficiently recycle unused engine oil at high speeds, to both preserve energy and to resist cavitation, by boosting inlet pressure to the low speed flow-supplementing gerotor.
New “Energy Efficient” Balance Shaft / Oil Pump Module for Hyundai NF
Sae Technical Papers
SAE 2006 World Congress & Exhibition ; 2006
2006-04-03
Conference paper
English
New "energy efficient" balance shaft/oil pump module for Hyundai NF
Automotive engineering | 2006
|New Energy-Effici ent Balance Shaft/Oil Pump Module
British Library Conference Proceedings | 2006
|Kompakter Hyundai - Hyundai i30
Automotive engineering | 2007
|Power pump win for Hyundai in Thailand
Online Contents | 2010