In anticipation of ever tighter noise emission limits for motor vehicles it is necessary to reduce the noise emitted by diesel engines. Within the program "Road Noise Abatement" a new heavy-duty ...

Future noise regulations for trucks require a i m engine noise level of 95 dBA or below at rated speed and load. To achieve this goal, noise reductions at source - lowering the excitation forces and ...

Diesel engines, often criticized for the disturbing noise they are generating, are getting closer to reaching another important milestone in their evolution. Ford's new 6.7-liter Power Stroke diesel ...

Anyone who has lived near an airport can attest that airplane engines are loud. If you've ever lived near a military air base ...