Power and Propulsion

Combustion and combustion processes

Latest Stories

Articles

Propulsion

Designs on a Diverse Powertrain Future

Many manufacturers in the construction and mining vehicle sectors have tabbed the Bauma trade show in April as the venue for major product debuts. Perkins is one of those, though it provided select...

Road Ready

Imaging

2026 Escalade IQL Is Cadillac’s Biggest, Roomiest EV Yet

Cadillac today unveiled the 2026 Escalade IQL electric vehicle, which maintains the Escalade IQ’s class-leading range but adds additional passenger and cargo space.

Technology Report

Propulsion

The International Fight over EFuels, Internal Combustion’s Would-Be Savior

Efuels, synthetic gasolines made from captured carbon dioxide and renewable energy (usually wind and solar power) are“ a valuable part of the solution” said...

Articles

Green Design & Manufacturing

SwRI Rolls out Hydrogen Demonstration Truck

For decades, the running joke around hydrogen being a viable fuel for commercial trucks has been that its “ten years away from being ten years away.” Though H2-fueled rigs operating at scale...

Technical Innovation

Electronics & Computers

Donaldson Filters Keep Fuel Cells Clean

One of the advantages of the internal combustion engine is that it can function with relatively simple intake air filtration. Provided that dust is kept out, air entering the engine can ensure that...

Articles

Defense

A New Look at Ignition: Refining Our Understanding of Combustion Dynamics in Gun Chambers

Every time a soldier pulls the trigger on a 7.62 rifle or pulls the wire of a 155 Howitzer, a complex chain reaction ensues over the next millisecond that we refer to as the ignition event. Read on to gain a new look at ignition.

Technical Innovation

Green Design & Manufacturing

Mercedes: H2-ICE Is Ready for Primetime in Commercial Trucks

Mercedes-Benz has unveiled a pair of prototypes powered by hydrogen combustion engines that were created in collaboration with Mörtlbauer Baumaschinen Vertriebs. The prototypes...

Technical Innovation

Propulsion

In Pursuit of a Dedicated Hydrogen ICE for Heavy-Duty Vehicles

Heavy-duty vehicle regulations from the European Union specify a 43% carbon emissions reduction by 2030. The EU’s carbon emissions reduction mandate climbs to 64% by 2035...

Q&A

Energy

Renewable Diesel Offers Drop-In Solution for Decarbonization

Renewable diesel fuels represent an opportunity to decarbonize on- and off-highway diesel ICE vehicles with a minimal investment in infrastructure and little to no disruption of...

Technical Innovation

Manned Systems

Westport Awarded LNG Development Program

Westport Fuel Systems announced that it has been awarded a development program by a global heavy truck manufacturer to adapt its LNG HPDI fuel system to meet Euro 7 emissions requirements for...

News

Green Design & Manufacturing

Hydrogen ICE Is Heating Up

In the past three months, at least four major announcements have detailed the kickstart of development programs or real-world demonstrations of hydrogen-fueled internal combustion engines (ICE). As OEMs and...

Technical Innovation

Power

The Future of Carbon-Neutral Fuels for Heavy-Duty Machines

Decarbonization of commercial vehicles and off-highway machines is rapidly becoming a hot-button topic among regulators in the EU, Asia and North America. In addition to cracking...

Articles

Manufacturing & Prototyping

Bosch Begins Production of Fuel-Cell Power Modules for Nikola

At its oldest and largest location – a site long accustomed to manufacturing parts for combustion engines – Bosch is now producing what it calls the most complex system it...

Articles

Power

E-Fueling for the Future

Synthetic and bio-based liquid “e-fuels” have in various forms enjoyed fits and starts of industry attention and R&D investment in recent years, but got the most significant boost ever in March 2023 when a...

Articles

Motion Control

Designing for 200 BMEP and 22,000 Rpm

Fire-bombing destroyed Japan’s 66 largest cities and their industry during World War II. After the war, over 200 makers of light motorbikes sprang into being because such transportation could be...

Q&A

Regulations/Standards

Kubota Engine High on HVO, Hydrogen and Hybrids

As part of its path to carbon neutrality, Kubota Engine engineers have developed a new 3.8-liter hydrogen engine that was introduced at CONEXPO 2023 in Las Vegas. The 4-cylinder spark-ignited...

Editorial

Propulsion

Sunset for the American V8

Technologies transition from dominance to nearly dead at different speeds and for various reasons. That’s particularly true for motive power. Pistons, cams and valves are giving way to anodes, cathodes and...

Articles

Energy

JCB Debuts Clean-Sheet Hydrogen Combustion Engine

JCB unveiled their clean-sheet hydrogen combustion engine, the 448 ABH2, at CONEXPO 2023 in Las Vegas. The company is touting their engine as a zero-emissions solution for construction and...

Articles

Energy

Building Out the EV Battery-Recycling Ecosystem

A robust EV battery-recycling industry has moved to a necessity as automakers, and their suppliers, transition away from internal combustion.

Technical Innovation

Transportation

Hydrogen Shows Increased Commercial Interest

While several commercial vehicle OEMs, including Tesla and Nikola, are in the latter phase of testing battery-electric semi-tractors on the road, action in the hydrogen space continues to grow...

Technical Innovation

Test & Measurement

Tula’s DMD Promises Gains in EV Efficiency

Nestled in San Jose, California just south of the San Francisco Bay, the small but mighty team at Tula Technologies continues to develop advancements for optimizing the efficiency of ICE and...