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VariableValveTiming


Variable valve actuation and HCCI could yield 20% efficiency bump

Even with the inexorable move toward electrically driven cars in the next couple of decades, the internal combustion engine will remain with us for some time to come either as the primary powertrain on many vehicles or at least as an auxiliary power unit for series hybrid vehicles. Given that reality, researchers are working feverishly on ways to improve the efficiency of ICEs as much as possible. During the recent SAE World Congress speakers from almost every carmaker and research facility talked about a new combustion process called ... Read more →

GM expands direct injection to 3.6L V-6 Sam Abuelsamid

General Motors' first North American application of direct injection on a gasoline engine was the 2.0L turbo four cylinder in the Pontiac Solstice GXP/Saturn Sky Red Line. The direct injection ...

Trickle down tech: Motorcycles start to get variable-valve-timing Jeremy Korzeniewski

Soon, I plan to write an editorial about which way the motorcycle designers are going when it comes to being a green form of alternative transportation. A sneak peek: motorcycles are getting bigger, ...

Variable valve actuation and HCCI could yield 20% efficiency bump 2 years ago on Autoblog Green

Even with the inexorable move toward electrically driven cars in the next couple of decades, the internal combustion engine will remain with us for some time to come either as the primary powertrain on many vehicles or at least as an auxiliary power unit for series hybrid vehicles. Given that ...

GM expands direct injection to 3.6L V-6 2 years ago on Autoblog Green

General Motors' first North American application of direct injection on a gasoline engine was the 2.0L turbo four cylinder in the Pontiac Solstice GXP/Saturn Sky Red Line. The direct injection allowed the engine to produce more power while getting better fuel economy than the base 2.2L engine. Now ...

Trickle down tech: Motorcycles start to get variable-valve-timing 2 years ago on Autoblog Green

Soon, I plan to write an editorial about which way the motorcycle designers are going when it comes to being a green form of alternative transportation. A sneak peek: motorcycles are getting bigger, faster and less fuel-efficient. Why? The demands of the buyers, of course. But, with the same things ...


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