Dual Fuel : Diesel – Natural Gas Conversion Kits
Retrofitting diesel engines to reduce a business’ dependence on burning diesel alone has become much easier. The addition of a gas train, an air-gas mixer and a control panel/HMI requires no modifications to the core engine system or its diesel components. Today’s dual fuel systems offer one-button switchback or automatically switch to diesel-only mode when required — meaning the same performance in a wide ranges of applications and temperatures while reducing fuel costs and emissions. Optiblend® has developed a closed-loop displacement algorithm embedded in its controller to allow the system to automatically adjust to changing gas composition (BTU value specifically) without needing to recommission the system. Optiblend® dual fuel kits are proven in the field with conversions on a wide range of engines, including Caterpillar®, Cummins®, Kohler®, MTU, John Deere®, Mitsubishi®, and many others.
The Optiblend® gas train can be connected to gas sources such as liquefied or compressed natural gas, wellhead gas, methane, low/high BTU methane, propane and bio-methane. A gas train assembly includes a filter, manual ball valve, gas lock-off solenoid, and zero pressure regulator. The supply gas pressure must be in the 3–5 psi range, and a primary pressure regulator may be required to lower the supply pressure if over 5psi. The filter prohibits particulate contaminants that may be present in the gas supply from entering the gas train and engine. The gas lock-off solenoid is controlled by the Programmable Logic Controller (PLC). The last component in the train is the zero pressure regulator which detects fluctuations in engine vacuum through the mixer to maintain atmospheric pressure and prevent over-fueling.
The Optiblend® air gas mixer is sized specific to your engine and application by our team of engineers. Proper system design of the dual fuel conversion kit ensures site installation, start-up, and tuning phases go smoothly.
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