Cummins Develops a New Turbocharger for Hydrogen Engines

Due to hydrogen’s lower density compared to gasoline, forced induction can significantly enhance the performance of hydrogen engines

Cummins informed a known automotive media outlet that the new turbocharger is still under development. This article has been updated to reflect that.

Hydrogen-powered vehicles are already in use, with internal combustion hydrogen engines being deployed in commercial applications across Europe. Meanwhile, automakers worldwide are securing patents for hydrogen engines designed for both commercial and performance applications.

Similar to gasoline or diesel engines, hydrogen engines mix air with fuel to generate power, and Cummins is developing a specialized turbocharger to enhance these engines, known as the CCS H2 ICE.

This variable geometry turbocharger is specifically designed to “meet the unique requirements of hydrogen engines,” according to Cummins. While the exact design details remain undisclosed, the turbo incorporates a custom aerodynamic setup tailored to hydrogen’s unique characteristics, such as its lower density compared to gasoline or diesel.

Burning hydrogen produces water as a by-product, and since the turbocharger is driven by the engine’s exhaust, it has been engineered to manage water effectively, ensuring both performance and durability.

Currently, turbocharged hydrogen engines are limited to commercial vehicles like trucks. However, with manufacturers such as Ferrari patenting hydrogen engine designs, it’s likely only a matter of time before high-performance hydrogen supercars featuring large turbochargers hit the market. Notably, in Europe, hydrogen combustion engines are classified as zero-emission.

The main challenge facing hydrogen-powered vehicles is infrastructure. Transporting and storing hydrogen is more complex than fossil fuels, requiring specialized high-pressure tanks and pipelines.

Refueling also demands advanced connectors far beyond standard gas pumps. Additionally, while hydrogen is volatile, it’s actually less explosive than gasoline when mixed with air.

Cummins has not yet specified a timeline for the release of its new turbocharger.

Author:

  • Growing up with a father who was a mechanic I had an appreciation for cars and motorcycles from an early age. I shared my first bike with my brother that had little more than a 40cc engine but it opened up a world of excitement for me, I was hooked. As I grew older I progressed onto bigger bikes and...

    View all posts