Browse Publications Technical Papers 2000-01-1799
2000-06-19

Investigation of the Primary Spray Breakup Close to the Nozzle of a Common - Rail High Pressure Diesel Injection System 2000-01-1799

Many details of the diesel spray breakup in real technical applications are still quite unknown because of the difficulties in the measurement techniques to obtain data inside the dense spray within the first millimeters downstream the nozzle exit. At the LTT-Erlangen the time-resolved Mie scattering technique in combination with a high resolving long distance-microscope is used to investigate this region. In contrast to previous works published by the LTT, the presented investigations have been carried out using a passenger car common-rail injection system equipped with six different injection nozzles. The aim of the presented investigations is to identify the influence of the nozzles geometry on the primary spray break up. With the taken 2D Mie scattering images many information can be extracted according to this topic, e. g., the development of the microscopic spray angle and local droplet size distributions. Additionally, the velocity vectors at the boundaries of the spray close to the nozzle hole have been determined by using double pulse techniques. If possible, microscopic and macroscopic structures of the spray are compared.

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

Microscopic Characterization of Diesel Sprays at VCO Nozzle Exit

982542

View Details

TECHNICAL PAPER

Investigation of Diesel Spray Primary Break-up and Development for Different Nozzle Geometries

2002-01-2775

View Details

TECHNICAL PAPER

Liquid Phase Thermometry of Common Rail Diesel Sprays Impinging on a Heated Wall

2007-01-1891

View Details

X