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LPG TECHNOLOGY
Page 41
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The GSPK Dual Fuel system has been developed by GSPK Multifuel Technology of Knaresborough, North Yorks, over the past six years. Basically, it programmes the truck's engine control unit (ECU) with custom-built software. The vehicle starts on diesel. When required LPG runs from the tank to a vaporiser, which turns it back into gas. It is then injected into the air intake from the gas valve via the manifold; the proportion is dictated by the engine's ECU.
According to Adrian Meakin: Most of the substitution occurs when the truck is cruising at constant speed; the gas creates some of the required power and the only way the truck can maintain the same speed is to reduce the amount of diesel injected.
"In order not to exceed the manufacturers tolerances, no gas is injected at all when the engine is working at its hardest,' he explains.
In terms of specification the size of the tanks will depend on the requirements of the operation. Meakin says it's possible a specific operation will require more diesel than gas or vice-versa, so it is difficult to pin down an exact cost for the system.
Cost depends on volume but for a single conversion the price is around the £7,000 mark and payback will depend on your fuel bill. The tanks' size can be adapted to fit your requirements. An individual conversation will take up to three days.
The system's two main distributors are Future Fuel Technology, from Lancashire, and Ecoblend, based in Devon.
Contact: www.futurefuettechnology.co.uk; www.eco-blend.com