H2 ignition systems Altronic

AdaptH2 system

For ultra-lean H2 combustion enabling high performance H2 ICEs with zero emissions (CH4 suitable).

Gain back the 20-30% of performance loss

Injectors and ignition systems are critical components for hydrogen internal combustion engines (H2 ICE), which are seen as a viable alternative to fuel cells for mid to heavy-duty applications due to their robustness and power delivery. HOERBIGER and Altronic (a member of the HOERBIGER Group), in cooperation with Prometheus Applied Technologies, provider of hydrogen combustion system know-how, are now advancing development of a solution for hydrogen ignition with prototypes already being available!

Currently, the performance of H2 ICEs faced difficulties resulting in 20 to 30% loss in power density and efficiency due to combustion instabilities. To overcome these difficulties and to achieve power and efficiency parity with diesel engines the AdaptH2 consists of 3 major components:

  • Injectors with an adaptable nozzle design for a homogeneous injection of H2
  • A predictive same cycle spark ignition control for proper ignition and prevetion of hot spots
  • A unique prechamber design for fast combustion of ultra-lean flames.
AdaptH2 Hoerbiger hydrogen
AdaptH2 Hoerbiger hydrogen
Homogeneous injection for H2 or CH4

Having homogenous mixtures is key to prevent the occurrence of LOP at BMEP levels. The sophisticated HOERBIGER H2 PFI injection system ensures a homogeneous H2 or CH4 mixture preventing rich pockets and combustion instability.

Same-Cycle Ignition energy control

To ensure proper ignition of ultra-lean H2 mixtures and preventing hot spots on the electrodes the Altronic ignition system delivers an adaptive spark energy with same-cycle spark control. It predicts the start of combustion (SOC) and adjusts the spark energy keeping a constant SOC and reducing electrode surface wear.

AdaptH2 Altronic Hydrogen Ignition
AdaptH2 Prometheus prechamber hydrogen
Fast combustion of ultra-lean flames

H2 mixtures must operate ultra-lean to achieve high efficiencies. The in the AdaptH2 system innovatively designed prechamber ignition device greatly enhances combustion speed of ultra-lean mixtures. Additionally, the unique design eliminates fuel residues avoiding preiginition.

Contact us directly via

enginetech@hoerbiger.com

See also...

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