Revolutionary New Engine Design Optimizes Fuel Economy

                                                                                         

Until now, car manufacturers faced the dilemma of having to weigh fuel economy against performance. A small engine provides better fuel economy than a large one of the same type, but the larger engine is more powerful. Wouldn't it be nice to have an economical small engine for cruising on a freeway, but one that would grow bigger and stronger when it needed to climb a steep hill? This scenario is now possible with the Hefley X1 engine.

The unique Hefley engine has been designed to provide a variable piston displacement. By displacement is meant the amount of space covered by the piston when it moves up and down within the engine's cylinder. In a conventional engine the displacement is constant for a given engine, but in a Hefley engine the displacement varies. If not much power is needed it has a small displacement, but the displacement increases as the demand for power increases.

The Hefley design allows the engine to always run at full throttle, which means that it runs at maximum efficiency at all times. Running at full throttle has the advantage that the engine receives the maximum amount of oxygen, which will burn the fuel in the most effective manner. And, because the fuel burns at its cleanest, there will be fewer harmful emissions than with a conventional engine running at less than full throttle.

In a conventional engine, the piston in the engine moves up and down a fixed distance. A fuel and air mixture is injected into the cylinder, which is then compressed by the piston, followed by an explosion when the fuel is ignited, which then drives the piston down. The degree to which the fuel-air mixture is compressed inside the cylinder by the upward motion of the piston is referred to as the compression ratio. Each type of fuel has an optimum compression ratio for optimum performance. The Hefley X1 engine, even though it has a variable displacement, has a constant compression ratio. In other words, even though the distance the piston travels varies, it compresses the fuel-air mixture to the same degree. This means that the engine always burns most effectively for the chosen fuel.

The latest model Hefley engine, the X2, is even more advanced. In addition to all the features of the X1, the X2 can be adjusted for different fuels, by adjusting the compression ratio. Regular gasoline may require a 12:1 compression ratio, while diesel fuel may need 20:1. Thus, depending on price, performance and availability, one can choose what fuel is best suited under the circumstances and be assured of optimum performance.

The Hefley engine is a truly novel design that may well bring about some major changes in the future of motor vehicles. In a related field, Biofriendly Corporation has developed as fuel saving additive. Their Green Plus® liquid fuel catalyst causes a cleaner, more linear burn of fuel in internal combustion engines, which results in fewer harmful emissions, increased torque and better fuel economy.

For more information about Green Plus, visit the Biofriendly website at www.biofriendly.com.

About the author:
Author, Peter Verhoeff, contributes articles on environmental issues for Biofriendly Corporation. More information on these and other topics can be found on the Biofriendly site.

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