EMISSION AND CONSUMPTION REDUCTION FOR SMALL TWO-STROKE GASOLINE ENGINES D2T, Drecq Daniel Technologies (France)

Format:

Conference/Event

Author/Creator:

DRECQ, D., author.

Conference Name:

Small Engine Technology Conference & Exposition (2001-11-28 : Pisa, Italy)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2001

Summary:

AbstractAutomotive pollutant emissions have been drastically restricted during the last ten years. These emission standards are now concerning small two-stroke engine. A Lot of technologies are offered to automotive engine manufacturers, such as direct injection or catalyst converter, but needs for low production price do not allow small two-stroke engine designers to use such evolutions.So, despite its high weight and complex mechanic, today's trend is towards four-stroke cycle.In order to meet future emission standard, different concepts have been implemented on a small two-stroke engine. An optimum combination between boost pressure and port timing has been found, using CFD, connected with results from hydraulic simulation, in correlation with tests on engine. The intake required conditions are reached through an external device, which is giving the right in-cylinder scavenging flow.Significant gains have been observed, concerning pollutant emissions as well as fuel consumption. These concepts allows small two-stroke engine to meet future regulations, keeping its advantages in price and weight

Notes:

Vendor supplied data

Publisher Number:

2001-01-1827

Access Restriction:

Restricted for use by site license