Potential of Additional Mechanical Supercharging for Commercial Vehicle Engines Mercedes-Benz AG

Format:

Conference/Event

Author/Creator:

Schmitz, Thomas N., author.

Conference Name:

International Truck and Bus Meeting & Exposition (1994-11-07 : Seattle, Washington, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1994

Summary:

Modern commercial vehicle engines are equipped with turbocharging and intercooling. This results in low emissions and fuel consumption. In the lower speed and load range and under transient conditions, these engines have disadvantages, as the fuel injection rate has to be limited to avoid excessive smoke emission.Also, the engine braking performance of highly charged, small displacement engines is also lower than that of large displacement engines.Mercedes-Benz decided to develop a combination of turbocharger and mechanical supercharger.In the lower speed range higher torque levels are possible and maximum torque is available without any lag especially in the transient mode with low smoke emission and fuel consumption.Vehicle performance during acceleration can be improved by up to 30%.During engine braking operation, the mechanical supercharger is activated throughout the whole engine speed range which results in a distinctive increase in braking power.Possible vehicle performance with and without additional Supercharging is discussed under fired and braking operation

Notes:

Vendor supplied data

Publisher Number:

942268

Access Restriction:

Restricted for use by site license