* USA - Cummins, Feds Developing Four-Cylinder Diesel for Nissan Titan
Columbus,IND,U.S.A -PickUp Trucks, by Mike Levine -May 18, 2011: -- Cummins is developing a high-efficiency inline-four-cylinder diesel engine with money from the U.S. Department of Energy and in partnership with Nissan for demonstration in the Titan light-duty pickup truck... Most half-ton truck makers are betting on small-displacement direct-injection gasoline engines to meet future fuel economy regulations, but Cummins expects its small displacement oil burner to get 40 percent better fuel economy over current light-duty V-8 truck engines. The Cummins average fuel economy target for this new diesel engine is 28 mpg while meeting tough U.S. Tier 2 Bin 2 emissions limits, according to the presentation... Getting 28 mpg combined mileage could mean more than 30 mpg highway, by our estimate, which could help Nissan meet strong new EPA regulations that will raise fleet fuel efficiency standards for light trucks and SUVs to 30 mpg by 2016. The standard for passenger cars is set at 39 mpg by 2016... Four cylinders might not seem like enough to power a full-size pickup but that architecture would be ideal to meet fuel economy goals while delivering almost as much torque as some small displacement gasoline V-8s... The engine has a 2.8-liter displacement (170 cubic inches). Initial power figures on the engine dyno have the mule test engine producing 350 pounds-feet of torque at around 1,800 rpm. A chart in the presentation shows targeted power levels to be approximately 220 horsepower and 380 pounds-feet... (Photo by Cummins, Nissan as published by the U.S. Department of Energy)
* Italy - Iveco unveils its Euro-6 engine line-up, and they all come without EGR
Turin,Italy -BigLorryBlog (UK) -May 20, 2011: ... The above engine which is the new low-emission Cursor 11 heavy truck diesel engine from Iveco and Fiat Powertrain Technologies which meets Euro-6 using without EGR... Apparently it's all down to Iveco and FPT Industrial's "unique SCR (Selective Catalytic Reduction) technology, which will be introduced on the two new Cursor and Tector engine ranges for heavy-duty trucks and buses" ... Meanwhile, as if you needed reminding, the Euro-6 exhaust emission regs will apply to all new heavy commercial vehicles and buses registered from 1st January 2014, and will see the following changes:
• New world-wide transient and steady state test cycles including cold start and normal running temperature components. The transient cycle will be in two parts; a part in which a cold engine is used and a second part, following a stationary rest time.
• NOx emissions reduced by 80% compared to Euro-5.
• PM mass reduction by 66% compared to Euro V and the further introduction of a particle number limit that will result in an overall particulate matter reduction of 95%.
• The introduction of an ammonia emission limit.
• The inclusion of crank-case emissions if a closed system is not used.
• Enhanced emissions durability requirements of up to 700,000 km or 7 years for the largest vehicles.
• A further enhanced On Board Diagnostic system performance will be required.
* UK - DAF introduces Paccar MX truck engine upgrades
Thame,Oxfordshire,UK -Transport Engineer, by John Challen -23 May 2011: -- DAF is introducing a number of innovations to the 12.9-litre Paccar MX engine in a bid to help operators achieve greater fuel efficiency and lower operating costs... Among the additions are new pistons, optimised fuel injection and a fully encapsulated exhaust manifold unit that together are said to ensure substantially lower fuel consumption and CO2-emissions... The 12.9-litre Paccar MX engine is fitted to the popular DAF CF85 and XF105 truck models, and is known for its reliability and performance... The engine also has an excellent reputation for fuel efficiency... (Image from daf.eu: PACCAR MX engine)
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