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A report from Automotive News quotes Klaus Frohlich, BMW Group board member for development, declaring that the diesel engine still has at least 20 more years, and the gasoline engine, at least 30 years. Also, he toned down the general rhetoric surrounding electric cars and their impending takeover.
Engine Technology International discusses the future of boosting. Using Turbochargers or superchargers started out as an exotic performance technology, now, turbocharging has become the default position for all diesel engines and the majority of today’s gasoline engines.
The future looks set to get a boost from both technologies, with turbocharger technology continuing on a similar path of improvement. VTG is already common in smaller diesel cars and two-stage turbo systems are now moving increasingly into that segment because of the economy benefits they offer.
Research and development in turbocharging has mainly been to reduce friction and inertia to improve response and driveability. Variable turbine geometry (VTG) have optimised the compressor response at low engine speed when exhaust gas energy is low, while still delivering enough air during maximum load operation.
Two-stage turbocharging has been in use on premium diesels for a number of years. A smaller turbo gives good response at low engine speeds when exhaust energy is low, and a larger turbo takes over at high load to meet air mass requirements of high power and torque output. VTG remains somewhat of a rarity on gasoline engines, mainly due to the high temperatures involved, but it is starting to make an appearance.
“The obvious next step is the application of variable geometry turbines for both small and mid-size gasoline engines”
Nisar Al-Hasan, head of technical business development – turbocharger, Continental
Other stories;
https://www.melett.com/industry-articles/diesel-to-retain-dominance-diesel-technology-forum/
Article from the IAAF.
The Society of Motor Manufacturers and Traders (SMMT) has warned the average CO2 emissions have climbed almost three per cent to 124.5g/km.
The rise has been blamed on a diesel sales slump and experts say if CO2 emissions continue to rise it could have detrimental effects on the environment and also see countries miss their targets for slashing emissions.
Just over 750,000 new UK diesel cars were registered in 2018 compared to 1.06 million in 2017.
The overall market percentage of diesel cars also slumped from 42 per cent to under 32 per cent over the space of 12 months.
[Source – IAAF, January 2019 – http://iaafnewsletter.co.uk/2019/01/18/diesel-decline-sees-co2-emissions-rise/?utm_source=wysija&utm_medium=email&utm_campaign=Issue+832]
More news from the SMMT – https://www.smmt.co.uk/2018/02/uk-motor-industry-issues-warning-shot-co2-targets-anti-diesel-backlash-means-uk-miss-environmental-goals/
[Source – SMMT, January 2019 – https://www.smmt.co.uk/2018/02/uk-motor-industry-issues-warning-shot-co2-targets-anti-diesel-backlash-means-uk-miss-environmental-goals/]Other stories;
Improving global air quality by speeding up the introduction of cleaner fuels and the newest generations of diesel tech.
Tremendous progress has been made in virtually eliminating criteria emissions from today’s generation of diesel engines. Continuar a ler “Diesel technologies enhance the overall quality of life”
The Sportage is Kia’s global and European best-selling model and here it represents a quarter of the brand’s sales.
The updated version gets a new front-end design for sharper looks and an EcoDynamics+ power train cuts Co2 emissions by 4pc under the new, strict WLTP rules, helped by the addition of Stop&Go.
Continuar a ler “Kia hopes to buck trend with cleanest-ever diesel”
