article thumbnail

Cummins & Tula demonstrate Diesel Dynamic Skip Fire (dDSF) cylinder deactivation; up to 66% reduction in NOx on CARB LLC #7

Green Car Congress

Like DSF for gasoline engines, dDSF uses individual cylinder deactivation control strategies to meet torque demand at optimal fuel and aftertreatment efficiency. dDSF improves fuel efficiency by firing all events at the most efficient ratio of air to fuel, allowing optimal combustion at all engine output levels.

Diesel 286
article thumbnail

Tula presenting diesel Dynamic Skip Fire technology at Future Diesel Powertrain Summit in Shanghai

Green Car Congress

Like DSF for gasoline engines, dDSF uses individual cylinder deactivation control strategies to meet torque demand at optimal fuel and aftertreatment efficiency. dDSF improves fuel efficiency by firing all events at the most efficient ratio of air to fuel, allowing optimal combustion at all engine output levels. Source: Tula.

Diesel 221
article thumbnail

Global Bioenergies and SkyNRG to collaborate on ASTM-certification of bio-isobutene feedstock and conversion for sustainable aviation fuel

Green Car Congress

After having shown last week the reality of renewable gasoline in a first car on the road event with our partner Audi [ earlier post ], we will soon show that our sustainable aviation fuel has a unique potential to concretely decarbonize the skies. —Marc Delcourt, Chief Executive Officer at Global Bioenergies.

Global 170
article thumbnail

bp investing $269M to improve efficiency, reduce emissions and grow renewable diesel production at Cherry Point Refinery

Green Car Congress

The $169-million Hydrocracker Improvement Project (HIP) will improve efficiency and reduce periods of planned maintenance, resulting in fewer unit shutdowns and associated flaring events. In this unit, heavy oils are subjected to high temperatures and pressure in the presence of hydrogen to produce gasoline, diesel and jet fuel.

Renewable 221
article thumbnail

Natural gas plug-in hybrid Class 4 logistics truck with EDI drive system

Green Car Congress

The truck is being officially unveiled at a voice of the customer event hosted by CALSTART at the Southern California Gas Energy Resource Center today. EDI’s technology effectively tripled the miles per gasoline gallon equivalent (GGE) of the baseline 14,500-pound CNG-powered truck from approximately 9 miles per GGE to 27.

Plug-in 150
article thumbnail

SEAT pushes forward with CNG line-up

Green Car Congress

A CNG vehicle reduces CO 2 emissions by about 25% compared to a gasoline-driven equivalent. In normal driving scenarios, SEAT’s CNG vehicles only use gasoline as an alternative fuel when the CNG tanks are empty, although with significant gas ranges, the need to use gasoline should be infrequent.

article thumbnail

Jeep sidesteps EVs with ICE off-road concepts, points to PHEVs

Baua Electric

And this year, unlike other recent years, all of them were gasoline-fueled. Jeep Willys Dispatcher concept Jeep Willys Dispatcher concept Jeep Willys Dispatcher concept Over the past three years the brand has used the spring event as a platform for exploring that shift toward an electric lineup.

Jeep 52