Numerical Simulation on Influence of the Spray Injector Type in a DISI Engine at Part-Load under Stratified Operation Volvo do Brasil

Format:

Conference/Event

Author/Creator:

de Queiroz Hindi, de Queiroz Hindi, author.

Contributor:

Pimenta, Amilcar Porto

Conference Name:

SAE Brasil 2011 Congress and Exhibit (2011-10-04 : Sao Paulo, Brazil)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2011

Summary:

This work investigates through numerical simulation the influence of two types of hollow cone fuel injectors, an inwardly and an outwardly opening types, on a direct injection spark ignition engine, at part load and under stratified charge operation. By maintain fixed spark timing, the end of injection is varied and compared among the two cases, while targeting for the same gross imep output. The main results are that the outwardly opening injector case resulted in better fuel-air mixture preparation, even with a late end of injection. This led to higher combustion efficiency and lower unburned hydrocarbon, CO and soot emissions, while increasing NOx emissions. The 10-90% MFB burn duration is higher for the outwardly opening injector case

Notes:

Vendor supplied data

Publisher Number:

2011-36-0026

Access Restriction:

Restricted for use by site license