Rail

Oil & Gas

Marine

Mining

Caterpillar Dynamic Gas Blending (DGB) is a dual fuel technology that uses existing gas engine hardware to allow Caterpillar diesel engines to burn natural gas and save owners significant fuel costs while maintaining diesel engine performance levels.

Caterpillar designed kit hardware includes the gas fuel system components, engine controls and software, sensors, valves and brackets. This technology is a positive build design with additions to the existing diesel engine and no change to diesel engine components.

These engines can be run on diesel or a combination of diesel and gas. In a dual fuel engine, the diesel acts as an igniter to get the gas to ignite inside the combustion chamber. These engines are started as a pure diesel engine and as the inlet air temperature rises, natural gas is injected into the cylinder from an additional intake valve. As the natural gas is injected, the amount of diesel being consumed is reduced.

Caterpillar will offer emissions capable DGB kits for both existing engines on a retrofit basis and on new engines from the factory in a variety of applications.

As the quantity and quality of the natural gas changes, the sophisticated DGB control software adjusts the engine control to accommodate and dynamically adjusts the amount of gas or diesel fuel. It automatically detects gas presence, gas quality and gas pressure to optimize fuel savings while maintaining engine performance and protection.

Advantages of Caterpillar DGB Kits are as follows:

• Significantly lower fuel costs with up to 70 percent replacement of diesel fuel with gas
• Fuel flexibility of dual fuels so operator can use gas when available and diesel when it is not
• Continuously adjusts engine operation during changing gas supply quality and pressure conditions
• Maintain diesel power, transient response and torque performance while burning gas
• Maintain engine service intervals and component life
• Meet emissions requirements
• Designed and offered by the original engine manufacturer