Keyou

KEYOU offers the fastest and most economical path to carbon-neutral mobility in the heavy-duty vehicle sector. With the "KEYOU-inside" technology—which converts existing engine platforms into Hydrogen Internal Combustion Engines (H2-ICE)—we combine high efficiency, durability, and zero-emission goals into a single solution. We are transforming the logistics industry by providing a more robust and cost-effective alternative to fuel cell systems.

1. KEYOU-inside Combustion Technology

At the core of KEYOU’s success are patented systems designed to manage hydrogen's unique combustion characteristics, such as its high flame speed and wide flammability limits.

• H2-Specific Combustion Process: Ensures stable combustion even in lean burn (very lean mixture) conditions. This increases engine efficiency while reducing the thermal load.

• Advanced Ignition System: High-precision ignition control that eliminates the risk of pre-ignition caused by hydrogen’s low ignition energy.

• Emission Control: CO2 emissions are naturally zero. Nitrogen oxide (NOx) emissions are reduced to "Near-Zero" levels through KEYOU’s proprietary combustion strategy and a standard SCR (Selective Catalytic Reduction) system.

2. Technical Components and Integration

KEYOU-inside optimizes the following components to make a standard diesel engine block hydrogen-compatible:

• Hydrogen Injection System: High-speed injectors that deliver hydrogen to the intake manifold or directly into the combustion chamber.

• Special Turbocharger Management: Turbocharger systems specially calibrated for hydrogen engines to provide high airflow, enabling the engine to produce high torque even at low RPMs.

• Engine Control Unit (ECU): A proprietary software infrastructure developed by KEYOU that manages all parameters at millisecond speeds.

3. Performance Data (Example: 7.8L Engine Platform)

A standard heavy-duty engine equipped with KEYOU technology offers the following values:

• Power Output: Approx. 210 kW (285 HP).

• Maximum Torque: 1000 Nm @ 1200-1600 rpm (Equivalent power feel to a diesel engine).

• Efficiency: 44% and above thermal efficiency (significantly higher than traditional internal combustion engines).

• Range: Depending on tank capacity, a range of 500-700 km for a 40-ton truck on a single fill.

4. Why H2-ICE instead of Fuel Cells (FCEV)?

The technical advantages of hydrogen internal combustion engines in heavy-duty operations include:

• Durability: Hydrogen engines are far more resistant to dusty, vibrating, and harsh working conditions (e.g., construction, mining) than fuel cells.

• Cost: Since existing engine production lines can be utilized, vehicle costs are 30-50% lower than fuel cell vehicles.

• Fuel Quality: While fuel cells require ultra-high purity (99.999%) hydrogen, KEYOU engines can operate smoothly with lower purity (and cheaper) hydrogen.

5. Operational Features

• Refueling: Full refueling in approximately 10-15 minutes at standard hydrogen stations.

• Maintenance Interval: Similar maintenance periods to existing diesel vehicles, ensuring operational habits remain unchanged for fleets.

• Service Life: An engine life of 1 million kilometers and above, which is critical for long-haul transportation.