Evolution of a high-pressure spray from a swirled gasoline injector Università di L'Aquila

Format:

Conference/Event

Author/Creator:

De Vita, De Vita, author.

Contributor:

Alfuso, S.

Allocca, L.

Di Angelo, L.

Conference Name:

2001 Internal Combustion Engines (2001-09-23 : Capri - Naples, Italy)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Naples, ITALY Consiglio Nazionale delle Ricerche 2001

Summary:

An extensive experimental work has been made in order to analyzethe structure of the spray of a large-angle single-holehigh-pressure swirl injector for direct-injection spark-ignited(DISI) gasoline engines. Spatial and temporal evolutionmeasurements of the spray have been carried out in an opticallyaccessible vessel. The spray has been lighted by an 80 mm thicknessand 12 ns duration pulsed laser sheet, generated by a 532 nm Nd-YAGlaser, both along the spray axis and in cross sectionsperpendicularly to it.The scattered light has been collected at 90\mD from the lasersheet direction by a digital CCD camera with a frame grabbersynchronized to the single-shot injection command and the laserstart pulse. A digital image processing system has allowedanalyzing the images collected by the CCD camera. It has beenpossible to visualize the formation and the spatial and temporalevolution of the initial liquid slug (pre-spray) and of thehollow-cone and solid-cone stray structure. Many changes in theinternal spray structure at different distances from the nozzlehave been observed

Notes:

Vendor supplied data

Publisher Number:

2001-24-0055

Access Restriction:

Restricted for use by site license