ENGINE EXPO LIVE NEWS: Aumet introduces all-new engine model

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Aumet has introduced its new ultra-low NOX engine at Engine Expo 2018. The innovative unit is a hybrid between a two- and four-stroke cycle, using single-fuel RCCI combustion.

“The main idea during development was to make a very light and compact engine that produces zero NOX,” said Timo Janhunen, managing director at Aumet Oy. “In the Z-engine we can take out the aftertreatment, which means we can make a diesel engine at the same price as a gasoline engine.

“A diesel engine produces 20% less CO2, which is more harmful to the atmosphere, so in my opinion gasoline engines should be thrown away. In terms of CO2, the Z-engine is a very good answer to that problem.”

The new design allows the Z-engine to boast high efficiency, especially at partial load and with almost zero NOX and particle emissions. This is achieved thanks to a high intercooling rate, which lowers the TDC compression temperature of the engine so that no NOX formation can take place. This removes the need for aftertreatment technology.

The Finnish company claims that the fuel consumption achieved is comparable to that of a dual-fuel RCCI engine, while manufacturing costs are estimated at US$1,200 lower than for a comparable four-cylinder diesel engine.

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Sam joined the UKi Media & Events automotive team in 2017. Having started out as assistant editor for a number of titles including Engine + Powertrain Technology International, Automotive Testing Technology International and Professional Motorsport World, he was appointed editor of E+PTI in 2020. Sam produces content for both the magazine and website.

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