1993-03-01

A Numerical and Experimental Study of the Effect of Aeration of Oil on Valve Trains Equipped with Hydraulic Lash Adjusters 930997

A model of a valve train equipped with a direct acting hydraulic lash adjuster (HLA) is presented. Possible aeration of oil in the HLA is taken into account. Moreover the evolution of the aeration in the HLA, due to dissolution and to aeration of oil circuit, is calculated by the model.
Experimental validation of the model was conducted on an engine head. The model correctly predicted measurements on the valve train.
As the engine head was fed by oil which could be mixed with air, parameters influencing the aeration in the HLA could be studied.

SAE MOBILUS

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

Access SAE MOBILUS »

Members save up to 43% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.
X