Power and Propulsion
Combustion and combustion processes

Latest Stories

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...

Feature Image

News
Power

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...

Feature Image

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...

Feature Image

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...

Feature Image

Articles
Green Design & Manufacturing

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...

Feature Image

Technical Innovation
Power

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...

Feature Image

Technical Innovation
Energy

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...

Feature Image

Articles
Connectivity

Navistar’s ‘Ground Up’ Approach to All-New Diesel Engine

Though electrification has taken center stage for the commercial trucking industry, diesel ICE powertrains will continue to serve as the preferred propulsion system of many...

Feature Image

Editorial
Green Design & Manufacturing

Zeroing in on Zero-Carbon Fuels

COP27, the 2022 United Nations Climate Change Conference that took place in Sharm El-Sheikh, Egypt, over a two-week span in November, helped bring global attention to the need for significant reductions...

Feature Image

Q&A
Energy

Liebherr Goes All in on Hydrogen Fuel

At the Bauma conference in late October, Liebherr displayed two prototype H2-fueled engines, the H964 and H966, to showcase its hydrogen-engine technology. Each prototype employed a different...

Feature Image

Technical Innovation
Energy

Kohler Doubles down on ICE Development

Kohler announced a new strategy at the Bauma 2022 expo – the company aims to transform itself from a power producer into an energy supplier. “Our business transformation is focused on providing...

Feature Image

Articles
Regulations/Standards

Tension and the Electric Takeover

Something happened in September 2022 that can be seen as emblematic of the auto industry’s accelerating transition to electrification: Tesla’s Model Y was Europe’s best-selling vehicle. An EV as...

Feature Image

Executive Viewpoints
Energy

Electric Mobile Machines Won’t Abandon Hydraulics

Equipment manufacturers in every major global market are launching full-electric and diesel-electric vehicles to respond to increasing market demands, reduce carbon footprints and stay...

Feature Image

Technical Innovation
Energy

New Biodiesel Strains Offer Measurable Gains

Extensive research and development of Hydrotreated Vegetable Oil (HVO) as a renewable and environmentally friendly fuel for diesel engines has been carried out by various OEMs and Tier 1s...

Feature Image

News
Power

SAE WCX 2022: Internal-Combustion’s Life Extension

Whichever way you “slice” it, the future of the 150-year-old internal combustion engine is moving steadily into the hands of global emissions-policy regulators. New ICE programs...

Feature Image

News
Propulsion

Keeping Combustion in the Conversation

The signals are everywhere that the days are numbered for internal-combustion engines (ICE) for passenger vehicles. Volkswagen CEO Ralph Brandsteatter told a German magazine in early 2021 that VW...

Feature Image

News
Power

Powertrain, Propulsion Lead Tech-Paper Topics at SAE’s WCX 2022

For 2022, advanced powertrain/propulsion-related topics continued to dominate the categories of published SAE technical papers, more than doubling the number of papers in...

Feature Image

News
Energy

Mahle, Liebherr Develop Active Pre-Chamber for Hydrogen ICE

The collaboration attempts to resolve issues with heavy-duty, hydrogen-fueled engines, namely avoiding pre-ignition and knock without reduced compression ratios.

Feature Image

News
Energy

Propulsion Tech Tops SAE WCX 2021 Papers and Presentations

The technologies that literally make the world’s wheels go round – the latest combustion systems and battery chemistries, electric machines, drivelines, fuels and more –...

Feature Image

Q&A
Manned Systems

Advancing the OP Engine on Three Fronts

Global demand for cleaner, more power-dense internal combustion engines (ICE) is expected to continue into the middle of this century, for a variety of vehicle applications and markets. San...

Feature Image

Articles
Manufacturing & Prototyping

Charting the ICE Future with Mahle’s Martin Berger

Electrification nets the current headlines and Wall Street fervor, but the internal combustion engine (ICE) will easily soldier on for several decades, serving as the core of many...

Feature Image

News
Energy

Deere Bullish on Biodiesel, Renewable Diesel

Petroleum-based fuels long have been the industry standard for heavy equipment primarily due to the lack of acceptable, cost-effective and reliable alternatives. But with growing interest in...

Feature Image

News
Energy

Mahle’s Hydrogen Focus Spans Fuel Cells, ICEs

Hydrogen fuel cell (HFC) technology is gaining momentum in the mobility sector, with substantial volume expected by 2025 to 2030, according to Dr. Marco Warth, director of corporate...

Feature Image

News
RF & Microwave Electronics

Bigger Processors, Smaller Engines

Engine designers are advancing electronic control systems to eliminate components and generate more power from smaller engines. They also are leveraging networks to integrate transmissions, global...

Feature Image

News
Transportation

Mahle Amps up Its Electrification R&D

Best known for pistons and other reciprocating components inside internal combustion engines (ICE), Stuttgart-based Tier 1 Mahle claims it’s keeping the R&D throttle wide open to cement its...

Feature Image

Briefs
Aerospace

Fast Reacting Nano-Composite Energetic Materials: Synthesis and Combustion Characterization

The advent of nanoparticle fuels enables new kinds of reactions, and new kinds of applications.

Feature Image

Technical Innovation
Power

Electric Actuators Can Benefit Heavy-Duty Diesels

As the heavy-duty diesel (HDD) truck world looks to likely future alternative power sources – battery or fuel cell – R&D into improving internal-combustion engine (ICE)...

Feature Image

News
Propulsion

The IC Future Points to More Downsizing, Lean Mixtures

Three engineers from the front lines of advanced internal-combustion (IC) engine development affirmed that despite the industry’s public promotion of a battery electric future for...

Feature Image

News
Materials

Porsche Partners to Develop 3D-Printed Pistons

Additive manufacturing (AM), aka 3D printing, is not new to Porsche. The German manufacturer heavily leverages AM processes in prototyping, and since May 2020, in production for...

Feature Image