Transportation

ClearFlame Engine Technologies takes aim at cleaning up diesel engines

Comment

ClearFlame Engine Technologies
Image Credits: ClearFlame Engine Technologies

Diesel engines are the workhorses of freight transportation and agriculture — and by extension keep the economy fed and well supplied. They also have a dirty side.

The founders of ClearFlame Engine Technologies, a four-year-old startup based in Geneva, Illinois, say they have found a way to clean them up.

The company, which participated in TechCrunch Disrupt’s 2020 Startup Battlefield competition, has developed a novel way to get diesel style engines to operate on renewable fuels like ethanol. The technology essentially combines the performance benefits of the diesel engine design with the low costs and the low emissions associated with these alternative fuels, co-founder and CEO BJ Johnson said in a recent interview with TechCrunch.

By replacing 100% of the petroleum fuel with a decarbonized fuel like ethanol, ClearFlame says its technology reduces net greenhouse gas emissions by at least 40%, and reduces particulate matter and smog (NOx) to near zero levels.

ClearFlame isn’t redesigning the diesel engine. Instead, Johnson and co-founder and CTO Julie Blumreiter have developed a way to modify the internal components of the engine to alter its thermodynamics to be able to quickly ignite and combust decarbonized fuels. The company’s technology means 80% to 90% of the diesel engine parts remain unchanged, according to Johnson.

The upshot is a technology that provides a fast and low cost way to reduce emissions, Johnson told TechCrunch. It’s the kind of solution that companies might need as local, state and national governments tighten emissions regulations.

The technology can be retrofitted into existing older diesel engines or applied to new engines that have yet to be installed in trucks or used in other industrial applications. ClearFlame is aiming to work directly with the engine manufacturer, which will still give the company access to the secondary market because every OEM has its own aftermarket parts group, Johnson said.

“We want to leverage their supply chain, their ability to scale and reach these markets, and the trusted name that comes with them,” Johnson said, explaining the company’s reasoning for targeting OEMs.

The technology was first developed in a Stanford University lab, where Blumreiter and Johnson earned their Ph.D. degrees. At Stanford, they were focused mostly on ethanol and methanol, which are simple liquid alcohols. However, Johnson noted that further research has shown that the same concept works equally well on natural gas and ammonia.

“The big difference here is that you have to tweak the injection system if you want to move away from a regular ambient liquid fuel,” Johnson said. “There’s just a ton of business value in being able to run an engine efficiently and cleanly on a fuel that just sits in a glass at ambient conditions, which is what those alcohols do.”

ClearFlame has already made headway with its technology, including landing partnerships and raising capital. The company completed a proof-of-concept demonstration of their technology on a Caterpillar engine at Argonne National Laboratory. ClearFlame is also conducting a demonstration on a Cummins engine platform supported by funding from the Department of Energy.

In April, ClearFlame announced it raised $3 million in a round led by CleanEnergy Ventures. The company has also landed several million dollars in grant money, including Small Business Innovation Research awards from the National Science Foundation, DOE and U.S. Department of Agriculture.

More TechCrunch

Welcome back to TechCrunch’s Week in Review. This week had two major events from OpenAI and Google. OpenAI’s spring update event saw the reveal of its new model, GPT-4o, which…

OpenAI and Google lay out their competing AI visions

Expedia says Rathi Murthy and Sreenivas Rachamadugu, respectively its CTO and senior vice president of core services product & engineering, are no longer employed at the travel booking company. In…

Expedia says two execs dismissed after ‘violation of company policy’

When Jeffrey Wang posted to X asking if anyone wanted to go in on an order of fancy-but-affordable office nap pods, he didn’t expect the post to go viral.

With AI startups booming, nap pods and Silicon Valley hustle culture are back

OpenAI’s Superalignment team, responsible for developing ways to govern and steer “superintelligent” AI systems, was promised 20% of the company’s compute resources, according to a person from that team. But…

OpenAI created a team to control ‘superintelligent’ AI — then let it wither, source says

A new crop of early-stage startups — along with some recent VC investments — illustrates a niche emerging in the autonomous vehicle technology sector. Unlike the companies bringing robotaxis to…

VCs and the military are fueling self-driving startups that don’t need roads

When the founders of Sagetap, Sahil Khanna and Kevin Hughes, started working at early-stage enterprise software startups, they were surprised to find that the companies they worked at were trying…

Deal Dive: Sagetap looks to bring enterprise software sales into the 21st century

Keeping up with an industry as fast-moving as AI is a tall order. So until an AI can do it for you, here’s a handy roundup of recent stories in the world…

This Week in AI: OpenAI moves away from safety

After Apple loosened its App Store guidelines to permit game emulators, the retro game emulator Delta — an app 10 years in the making — hit the top of the…

Adobe comes after indie game emulator Delta for copying its logo

Meta is once again taking on its competitors by developing a feature that borrows concepts from others — in this case, BeReal and Snapchat. The company is developing a feature…

Meta’s latest experiment borrows from BeReal’s and Snapchat’s core ideas

Welcome to Startups Weekly! We’ve been drowning in AI news this week, with Google’s I/O setting the pace. And Elon Musk rages against the machine.

Startups Weekly: It’s the dawning of the age of AI — plus,  Musk is raging against the machine

IndieBio’s Bay Area incubator is about to debut its 15th cohort of biotech startups. We took special note of a few, which were making some major, bordering on ludicrous, claims…

IndieBio’s SF incubator lineup is making some wild biotech promises

YouTube TV has announced that its multiview feature for watching four streams at once is now available on Android phones and tablets. The Android launch comes two months after YouTube…

YouTube TV’s ‘multiview’ feature is now available on Android phones and tablets

Featured Article

Two Santa Cruz students uncover security bug that could let millions do their laundry for free

CSC ServiceWorks provides laundry machines to thousands of residential homes and universities, but the company ignored requests to fix a security bug.

1 day ago
Two Santa Cruz students uncover security bug that could let millions do their laundry for free

TechCrunch Disrupt 2024 is just around the corner, and the buzz is palpable. But what if we told you there’s a chance for you to not just attend, but also…

Harness the TechCrunch Effect: Host a Side Event at Disrupt 2024

Decks are all about telling a compelling story and Goodcarbon does a good job on that front. But there’s important information missing too.

Pitch Deck Teardown: Goodcarbon’s $5.5M seed deck

Slack is making it difficult for its customers if they want the company to stop using its data for model training.

Slack under attack over sneaky AI training policy

A Texas-based company that provides health insurance and benefit plans disclosed a data breach affecting almost 2.5 million people, some of whom had their Social Security number stolen. WebTPA said…

Healthcare company WebTPA discloses breach affecting 2.5 million people

Featured Article

Microsoft dodges UK antitrust scrutiny over its Mistral AI stake

Microsoft won’t be facing antitrust scrutiny in the U.K. over its recent investment into French AI startup Mistral AI.

2 days ago
Microsoft dodges UK antitrust scrutiny over its Mistral AI stake

Ember has partnered with HSBC in the U.K. so that the bank’s business customers can access Ember’s services from their online accounts.

Embedded finance is still trendy as accounting automation startup Ember partners with HSBC UK

Kudos uses AI to figure out consumer spending habits so it can then provide more personalized financial advice, like maximizing rewards and utilizing credit effectively.

Kudos lands $10M for an AI smart wallet that picks the best credit card for purchases

The EU’s warning comes after Microsoft failed to respond to a legally binding request for information that focused on its generative AI tools.

EU warns Microsoft it could be fined billions over missing GenAI risk info

The prospects for troubled banking-as-a-service startup Synapse have gone from bad to worse this week after a United States Trustee filed an emergency motion on Wednesday.  The trustee is asking…

A US Trustee wants troubled fintech Synapse to be liquidated via Chapter 7 bankruptcy, cites ‘gross mismanagement’

U.K.-based Seraphim Space is spinning up its 13th accelerator program, with nine participating companies working on a range of tech from propulsion to in-space manufacturing and space situational awareness. The…

Seraphim’s latest space accelerator welcomes nine companies

OpenAI has reached a deal with Reddit to use the social news site’s data for training AI models. In a blog post on OpenAI’s press relations site, the company said…

OpenAI inks deal to train AI on Reddit data

X users will now be able to discover posts from new Communities that are trending directly from an Explore tab within the section.

X pushes more users to Communities

For Mark Zuckerberg’s 40th birthday, his wife got him a photoshoot. Zuckerberg gives the camera a sly smile as he sits amid a carefully crafted re-creation of his childhood bedroom.…

Mark Zuckerberg’s makeover: Midlife crisis or carefully crafted rebrand?

Strava announced a slew of features, including AI to weed out leaderboard cheats, a new ‘family’ subscription plan, dark mode and more.

Strava taps AI to weed out leaderboard cheats, unveils ‘family’ plan, dark mode and more

We all fall down sometimes. Astronauts are no exception. You need to be in peak physical condition for space travel, but bulky space suits and lower gravity levels can be…

Astronauts fall over. Robotic limbs can help them back up.

Microsoft will launch its custom Cobalt 100 chips to customers as a public preview at its Build conference next week, TechCrunch has learned. In an analyst briefing ahead of Build,…

Microsoft’s custom Cobalt chips will come to Azure next week

What a wild week for transportation news! It was a smorgasbord of news that seemed to touch every sector and theme in transportation.

Tesla keeps cutting jobs and the feds probe Waymo