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Hydrogen Engine Development

We see hydrogen as the driving force of a cleaner future. Our mission is to turn this vision into powerful engines that deliver real-world performance. From heavy-duty trucks to passenger cars, motorsport, motorcycles and power generators – the possibilities are broad and ambitious. Zero CO₂, ultra-low NOx and uncompromising high power.

Cutting H₂ICE project timelines with simulation

Hydrogen Engine Development

Developing a hydrogen engine requires more than adapting fossil-fuel expertise. Gasoline or diesel know-how alone is not enough. You need true hydrogen specialists. By seamlessly integrating simulation, testing and combustion science, we optimize every step for hydrogen, minimizing risks and ensuring maximum performance. With our unique expertise, we accelerate your path from concept to prototype.

Concept & Design

Every successful hydrogen engine begins with a solid concept. At Felsaris we translate visions into precise technical designs, combining advanced CAD, thermodynamic modeling and system-level analysis. From layout and air-path design to combustion chamber geometry and injection strategy, every decision is guided by hydrogen-specific requirements. By integrating manufacturability, safety and performance from the outset, we avoid costly redesigns and create a robust foundation for development. Our structured concept phase ensures that each project enters simulation and testing with a clear roadmap, reducing risks and accelerating time-to-prototype.

Simulation & Pre-Development

Using proprietary H₂ combustion models and advanced 1D/3D CFD simulations, we predict performance with high accuracy, optimize combustion and detect abnormal combustion risks at an early stage. This shortens development cycles, increases efficiency and avoids costly iterations. With our patented and highly reliable simulation approach, we can pre-calibrate the engine, minimizing expensive and potentially risky trial-and-error during testing. Simulation is our core competence: we develop the entire engine virtually to a very advanced level, achieving a mature design before physical testing even begins. This is why our patented hydrogen simulation approach enables development that is up to three times faster, at 50% lower cost, and with more reliable power output compared to conventional methods.

Testing & Calibration

Once the virtual development reaches maturity, we transfer it seamlessly to real-world validation. Working with leading test bench facilities, we refine every parameter – from ignition timing and injection pressure to turbo-matching, knock prevention and emissions control. Our pre-calibrated approach minimizes trial-and-error, turning testing into a confirmation process rather than costly exploration. By focusing on zero CO₂, ultra-low NOx and stable high-power operation, we deliver engines that perform reliably across all duty cycles. Whether heavy-duty, passenger car, motorsport, motorcycle or power generator, our calibration ensures performance and durability that set new benchmarks in hydrogen propulsion.

Accelerating Hydrogen Engine Development

With unmatched expertise in hydrogen combustion, simulation and testing, we deliver rapid development cycles, reliable performance and engines ready for real-world application. Our unique fossil-to-hydrogen approach is based on years of research and more than 30 development projects, patents and theses. Today, this expertise is available to you within a compact, highly efficient project timeline. For hydrogen engines, trust the partner who turns innovation into proven results.

3x Faster

Our H₂-Engine rapid development approach allows you to reduce project implementation time and cut project costs by up to 50% compared to competitors offering the same high quality.

30+ Projects & Studies

Our unique Fossil-to-Hydrogen Conversion approach builds on more than 30 projects, patents, and academic theses, making it both robust and highly reliable.

Why partner with Felsaris on H₂ICE?

Developing a hydrogen engine requires specialist expertise beyond knowledge of petrol or diesel powertrains. Felsaris combines advanced simulation, precise testing and in-depth combustion expertise in an integrated process. This minimises risks, maximises performance and accelerates the path from concept to prototype.

Others

  • Often focus on conventional gasoline and diesel solutions, with little to no dedicated hydrogen experience.
  • Standard modeling tools are not fully adapted to hydrogen, which can slow progress and reduce performance.
  • Practical hydrogen engine testing is still at an early stage in many companies. Some focus only on simulation, others only on experiments.
  • Typical project durations often exceed two years.
  • No comparable track record of scientific studies, patents, or theses specifically dedicated to hydrogen conversion.
  • Hydrogen projects are usually treated as side topics rather than core expertise.

Felsaris

  • We combine deep hydrogen expertise with proven combustion and engine know-how.
  • More than 30 scientific studies, patents, and theses went into our unique fossil-to-hydrogen conversion approach. A foundation no other provider can match.
  • Our proprietary hydrogen combustion simulation modules deliver fast and precise results, cutting development timelines by 1-2 years.
  • We have extensive testing experience across engine sizes and power ranges, working closely with academic and industrial partners.
  • We deliver H₂ engine prototypes in just 8–18 months, ready for real-world application.
  • We are fully dedicated to hydrogen engines like no other service provider.

Engineering projects on request or with flexible on-demand support:

Contact us for a tailored quotation for your project, or explore whether our flexible CFD on-demand services are the right fit for getting started quickly.

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