RESEARCH THE INFLUENCE OF SPARK PLUGS TYPES ON THE PERFORMANCE OF THE ENGINE OPERATING ON GASEOUS FUELS

Problem of vehicle noise has been observed since the appearance of the larger number of vehicles on the roads. Drivers and passengers are exposed to constant noise and vibration originating from their own vehicles and all other vehicles participating in traffic. This paper reviews development of regulations that impose limits for vehicle noise. Chronological development of vehicle noise regulations is presented in order to observe trends in corresponding noise limits and requirements. Required future activities in formulation of new vehicle noise regulations based on vehicle users' demands, developments and trends in automotive industry and requisites for vehicle weight reduction and cutting the costs of vehicle production are analysed in the paper.