The Effect of Intake Duct Length on the In-Cylinder Air Motion in a Motored Diesel Engine Centro Ricerche Fiat Orbassano (Torino), Italy

Format:

Conference/Event

Author/Creator:

Margary, R., author.

Conference Name:

International Congress & Exposition (1990-02-26 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1990

Summary:

The effect of intake duct length on volumetric efficiency and in-cylinder flow field is investigated in a four-stroke single cylinder research DI Diesel engine, motored at 1000-3000 rpm. Three lengths of straight duct upstream of the helical inlet port of the engine are considered and measurements of instantaneous mass flow rate and pressure drop across the port are reported as a function of duct length and engine speed. The in-cylinder flow field is characterised by LDV measurements of swirl velocity at inlet valve closure and inside the piston bowl at top dead centre of compression. The results show a significant increase of swirl velocity magnitudes as resonance of the induction system is reached. Turbulence intensity is shown to be less affected by the inlet conditions

Notes:

Vendor supplied data

Publisher Number:

900057

Access Restriction:

Restricted for use by site license