Remove Commercial Remove Conversion Remove Exhaust Remove Fuel Economy
article thumbnail

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

Green Car Congress

Engine controller with dDSF: Tula’s proprietary SW for smooth, efficient operation and fuel economy gains. 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. dDSF offers the opportunity to decreased after-treatment costs.

Diesel 221
article thumbnail

SwRI develops D-EGR demonstrator highlighting fuel-efficient, cost-effective engine; 10% and above fuel economy improvements

Green Car Congress

D-EGR is an engine and control concept that combines fuel reforming to produce hydrogen with high levels of exhaust gas recirculation (EGR) to achieve very high levels of thermal efficiency. In 2013, SwRI reported a 2.0-liter As will be presented at SAE World Congress, SwRI engineers modified the 2.0-liter

article thumbnail

XL Hybrids introduces the first hybrid electric upfit for Ford F-250 pickups and chassis for commercial fleets

Green Car Congress

This will be the first time that Ford F-250 trucks can be ordered by fleet customers with hybrid-electric drive technology; the XL3 system can provide up to a 25% increase in fuel economy. The XL3 technology leaves the original equipment manufacturer’s (OEM) engine, transmission, fuel system and exhaust system completely intact.

Fleet 191
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

The collaboration work was carried out on a Cummins X15 Efficiency Series 6-cylinder diesel engine, which already offers class-leading fuel economy. The reduction of tailpipe NO x is achieved primarily by optimized exhaust temperature control, resulting in significantly improved conversion efficiency of the aftertreatment system.

Diesel 286
article thumbnail

MECA report finds additional NOx emission reductions from new heavy-duty trucks achievable and cost-effective

Green Car Congress

In this report, MECA provides our assessment of technologies being commercialized by component suppliers, including MECA members, to help their customers comply with future lower NO x standards. Furthermore, catalyst development has produced higher activity catalysts that can provide higher NO x conversion with lower catalyst loading.

Emissions 291
article thumbnail

Cummins developing 15-liter on-highway natural gas engine; latest EcoFit technologies at MATS

Green Car Congress

The ISX15 G will be based on the ISX15 diesel engine and will build on Cummins technology with spark-ignited, stoichiometric cooled exhaust gas recirculation (SEGR) technology, first introduced on the 8.9 SEGR combustion also improves power density and fuel economy vs. lean burn and traditional stoichiometric engines.

Gas 240
article thumbnail

NSF and DOE form Partnership on Advanced Combustion Engines; goal 25-40% better LDV fuel economy and 55% BTE in heavy-duty engines; $12M in awards for FY 2012-2014

Green Car Congress

The goal of the partnership is to leverage the complementary missions of deployment and commercialization (DOE) and fundamental research and education (NSF) to address the efficiency of the internal combustion engine (ICE). bio-derived) fuels have the potential to dramatically increase fuel economy.