Increasingly stringent diesel engine exhaust emissions regulations have, over the past 20 years, reduced output of nitrogen oxides (NOx) by 95% and particulate emissions by 90% in heavy trucks. These ...

One company thinks it has the answer for truck operators that want to use natural gas but are concerned about range issues: a dual-fuel system that can be retrofitted to existing diesel engines.

A retrofit system that converts diesel engines to operate on 90% hydrogen has been prototyped and tested by University of South Wales (UNSW) researchers. This system drastically reduces emissions of ...

The clearances inside diesel injection system parts are closer than those found in any other technology. The plungers and needle valves in injectors need to fit tightly to ensure precise metering and ...

BAE Systems is a multi-national company that says it has built HybriDrive electric powertrains for more than 3,500 transit buses in cities around the world, plus many thousands of straight diesel ...

Honda, the car maker that floored the world in the 1970s with the first gasoline engine to meet U.S. clean air guidelines without a catalytic converter, said it has developed a new and simple diesel ...

As global diesel engine usage remains stable, the importance of reliable spare parts suppliers continues to grow. Xingtai Haoheng Trading Co., Ltd. operates in this segment by focusing on the ...

Greater Bridgeport Transit (GBT) is in the process of transitioning its fleet of buses to zero tailpipe emission propulsion systems. We have been operating two battery electric buses (BEBs) for a ...

DETROIT -- Volkswagen AG 's promise to fix pollution control systems on about 11 million diesel vehicles will involve changes to software, and possibly hardware, that could leave owners with cars that ...

Diesel engines are capable of putting out plenty of power. But if you don't keep up with maintenance, a few issues could make ...