Quick Takeaways
  • Johnson Matthey has expanded its hydrogen testing capabilities with a new hydrogen internal combustion engine (H₂-ICE) facility in Sweden.
  • The facility enables full-engine, high-power testing to support future heavy-duty hydrogen combustion and emissions compliance.
Johnson Matthey Plc announced the launch of its first hydrogen internal combustion engine testing facility, marking a strategic expansion of its hydrogen and emissions testing capabilities. The new center, established at the company’s Gothenburg site in Sweden, represents a GBP 2.5 million investment spread over three years and reflects the growing industry focus on hydrogen-powered combustion technologies.
Hydrogen Internal Combustion Engine Testing Facility Enhances Capabilities
The hydrogen internal combustion engine testing facility is designed to support advanced evaluation of emission control systems for heavy-duty applications. By extending existing testing operations, the site strengthens Johnson Matthey’s ability to validate catalyst performance under real-world hydrogen combustion conditions while addressing regulatory and efficiency requirements for future powertrains.
The facility is equipped with dedicated test cells capable of handling medium- and heavy-duty diesel engines, while also enabling full-engine testing at outputs of up to 600 kW or 800 horsepower. This marks the first time the company can conduct complete engine-level testing at such power levels within its internal infrastructure.
Advanced Hydrogen Infrastructure and Measurement Systems
A core feature of the hydrogen internal combustion engine testing facility is its integrated hydrogen supply and storage setup. The site includes high-pressure hydrogen storage of up to 413 bar, supported by a compressor and intermediate storage tank to ensure stable and controlled hydrogen delivery during testing operations.
To ensure precise analysis, the facility incorporates a hydrogen flow meter and analyzer alongside comprehensive exhaust measurement equipment. These systems allow engineers to assess catalyst behavior within the broader engine after-treatment and control architecture, providing accurate data on emissions performance and system efficiency.
Key technical components include:
  • On-site high-pressure hydrogen storage and compression systems
  • Full-engine test capability up to 600 kW output
  • Hydrogen flow measurement and analysis tools
  • Exhaust measurement, control, sensing, and safety systems

By combining hydrogen handling infrastructure with advanced diagnostics, the new testing center positions Johnson Matthey to support the evolving requirements of hydrogen-based internal combustion engines in heavy-duty transport.
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