Browse Publications Technical Papers 2001-01-1309
2001-03-05

LDA Investigation on Valve - Wall and Valve - Valve Flow Interaction in High-Performance 4-Valve I.C.E. 2001-01-1309

The fluid dynamic efficiency of two different four-valve high-performance engine heads has been compared both in terms of global mass flow rate and in terms of local velocity distribution around the valve curtain, by means of LDA measurements. The two engine heads have the same bore and valve diameters, but a slightly different valve position and valve stem inclination. Results clearly show that valve-wall distance is a critical factor for head permeability and that even marginal variations in valve position and inclination lead to appreciable differences in flow pattern and total flow rate.

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

Influence of Valve-Wall Distance on the Intake Flow in High Performance I.C.E.

2004-01-1922

View Details

TECHNICAL PAPER

Capillary Limit in a Loop Heat Pipe with a Single Evaporator

2002-01-2502

View Details

TECHNICAL PAPER

Measurement of Air Flow Around an Inlet Valve Using a Pitot Probe

980142

View Details

X