The first prototype of an engine of this type has already been assembled, KAMAZ said in a statement.
Compared to previous models, this engine of the future must have one-fifth the level of emissions of nitrogen oxide, one-third the level of particulate matter and 40 percent of ammonia levels in exhaust gases. Stricter regulations also apply to onboard diagnostics.
The assembled model is undergoing bench tests. Among these is an adaptation of the EGR (Exhaust Gas Recirculation) system under which some of the exhaust gases are reintroduced to the cylinder to burn them off more completely. This process allows for a reduction in the rate of heat release, which contributes to the creation of nitrogen oxide.
“The transition to a new environmental type of KAMAZ engine has never been as complex as with the creation of a Euro 6 engine,” said Alexander Gordeyev, chief specialist on the engine’s operating processes.
“The move from Euro 4 to Euro 5 for KAMAZ engines implied only a considerable reduction in nitrogen oxide emissions. Other indicators, like emissions of particulate matter, carbon monoxide and hydrocarbons, remained at the same level.
“Also noteworthy here was the fact that the method of testing and certification procedures were absolutely identical and straightforward for Euro 6, were limited to bench tests.”
Plans to test the engines within vehicles are set for next year. Mass production of the engines is planned for January 2024 – production of the vehicle itself is to go ahead a year later.
Company documentation calls for the launch a series of engines with a 13-litre capacity and 420-560 horsepower. Production of models with new power units will not require major changes to current assembly lines. Most of the equipment involved will remain unchanged, with new components introduced as additional functions.