Home / Technology / CHFA Technology
Controlled Hydrogen Fuel Assist
Patent-applied precision HHO generation for engines. Low-volume, precisely measured hydrogen injection optimized for diesel engines, DG sets, and mobile applications. Delivers 3-22% fuel savings depending on engine age and type.
Research-Backed Technology

Fuel Efficiency
3-22%
Improvement
Testing
3L+
km Verified
Precision hydrogen injection optimized for variable-load engine applications
Water electrolysis produces HHO gas on-demand. No storage required - zero safety risk from stored hydrogen.
Low-volume HHO precisely measured and injected based on engine load, RPM, and operating conditions.
HHO increases flame speed and combustion efficiency, resulting in better fuel utilization and lower emissions.
150-3000 ml/min capacity range. Precise dosing based on real-time engine parameters and application requirements.
Automatically adjusts HHO generation based on engine load, RPM, and operating conditions for optimal performance.
Integrates with existing engines without modification. Installation on air intake - no engine changes required.
Savings depend on engine age and emission standard (Euro/BS). Older engines show higher savings due to carbon cleaning effect. Newer engines deliver 3-8%, older engines achieve 12-22%.
On-demand generation eliminates storage risks. Multiple fail-safe systems and automatic shutdown protection.
Integrated with GreenVision platform for live performance tracking and predictive maintenance.
Fuel savings from CHFA technology range from 3% to 22%, depending on the engine's age, emission standard, and baseline condition. Older engines show significantly higher savings due to carbon cleaning effects.
Modern engines with advanced emission controls already operate at higher baseline efficiency. CHFA provides incremental efficiency gains.
Moderate carbon buildup over operating life. CHFA improves efficiency and begins carbon cleaning process.
Significant carbon buildup reduces baseline efficiency. CHFA delivers substantial efficiency gains through improved combustion and carbon cleaning.
HHO combustion breaks down accumulated carbon deposits in combustion chambers, valves, and piston crowns, restoring engine efficiency.
Older engines operate at lower baseline efficiency, providing more room for improvement compared to optimized modern engines.
Immediate combustion improvement plus gradual carbon cleaning creates compounding efficiency gains over time.
ROI Impact: Older engines typically achieve ROI in 6-12 months due to higher fuel savings, while newer engines achieve ROI in 12-24 months.
Proven across multiple engine applications with consistent results
Diesel and CNG generator sets from 125 kVA to 1,500 kVA capacity.
Auxiliary engines and ship boilers. All marine fuels - HFO, MDO, MGO, diesel.
Trucks, mining, construction equipment. Diesel engine applications.
SGT's research on CHFA technology and hydrogen dosing for engines has been published in the ARAI (Automotive Research Association of India) scientific journal.
SGT's Unique Position
Through published research and extensive testing, SGT has developed the most comprehensive understanding of hydrogen dosing technology for engines. This enables us to optimize CHFA systems for maximum fuel savings across applications.

| Parameter | Specification |
|---|---|
| HHO Generation Capacity | 150 - 3000 ml/min (application dependent) |
| Power Supply | 12V DC or 24V DC |
| Power Consumption | 80W - 450W (load dependent) |
| Operating Temperature | 0°C to 55°C ambient |
| Water Requirement | Distilled water or DM (demineralized) water |
| Control System | Microcontroller-based with load sensing |
| Safety Features | Pressure relief, flashback arrestor, auto-shutdown |
| Installation | Retrofit to air intake, no engine modification |
| Maintenance | Water refill every 3-6 months (usage dependent) |
| Certifications | CE, UL, RoHS, EMC, ISO 9001 |
| Warranty | 1 year standard warranty, 2 years support via annual AMC |
Contact our engineering team to discuss your specific application