Doosan Diesel Forklifts Arlington

Forklift Engines

Forklifts are classified as small-engine vehicles. Forklift engines all follow the principles of internal combustion, while the numerous makes and models of forklift would have a different design and layout. Forklifts are made more toward producing high torque rather than for speed. They generally are geared to low speeds. The engine powers the drive wheels of the forklift. The engine is also needed to lift and lower the forks through a series of chain pulleys. Most modern lift truck engines are powered by propane since they would be utilized indoors, where gasoline and diesel engines would be unsuitable because of the exhaust they generate.



Typically, the forklift is a four-cylinder engine-block. The engines of the forklift are like automobile engines as they hold pistons connecting to a camshaft. The head of each and every cylinder has an exhaust hatch, a spark plug and an exhaust hatch, each of them one-way and spring-loaded.



Engine Function

Once the operator starts up the engine of the forklift, propane passes through the opened throttle-plate in a fine spray and mixes together with air coming from the mass air intake prior to moving into the cylinder head intake hatches. Each one of the four pistons is staggered to rise in an exact sequence, compressing the mixture of air and propane as each piston rises to the top of the head. With extremely exact timing, the engine's alternator and battery produce an electrical current that passes through the spark plug. The fuel ignites resulting in an explosion which drives the piston back down to the bottom of the cylinder, leading to a continuous turning of the camshaft. In the cylinder, an air pressure imbalance causes the exhaust to be drawn out through the exhaust hatch as more fuel passes into the cylinder. Propane burns much cleaner than gasoline and diesel and the exhaust is not as harmful.

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