Share:

Internal Combustion Forklift Operation

IC_Engine

Need forklift service support? ProLift helps customers with any forklift make or model. CONTACT PROLIFT

An engine is a device that uses chemical energy – a fuel – to produce mechanical energy. Engines operating on this principle are called internal combustion engines and are used in an internal combustion forklift.

Because automobiles use the same type of engine, many people are familiar with an internal combustion (IC) engine. While it operates similar to your vehicle, four unique engine types are used in forklifts.

Types of Forklift Engines

  • Gasoline engines use the same fuel as an automobile.
  • Liquefied Petroleum Gas (LPG) engines run on a gas that occurs naturally. LPG is commonly used for gas grills.
  • Compressed Natural Gas (CNG) engines use the same fuel supplied to homes and businesses to power stoves, furnaces and other appliances.
  • Diesel engines use diesel fuel, a lower grade fuel not as refined as gasoline and therefore, not as combustible.

Internal Combustion Forklift Operation

An ignition battery and gear-driven starter forces the engine to “crank over,” starting the internal combustion process. The carburetor mixes a combustible, liquid fuel with air and injects it into the cylinders through the valve. Within the cylinder, the piston is attached to a rod, which in turn is attached to the crankshaft.

Mechanical energy is produced when the spark plug introduces a spark to the compressed fuel/air mixture, igniting the explosion. The explosion drives the piston and rod down in the cylinder. Because of the way the crankshaft is designed, it will convert the downward energy of the piston and rod to the mechanical energy (RPMs).

A series of these cylinders is connected to the crankshaft in the block. The block contains other mechanisms, like the cam shaft, which uses the RPMs to open and close the valves in precise timing sequence. This mechanical energy also drives the alternator or generator (found mounted to the engine and driven by a belt) which supplies current to the lift truck’s electrical components. Additionally, the electricity produced in this way is used to drive the power steering and lift/tilt hydraulic pumps.

Internal Combustion Forklift Application

An IC forklift is used where power requirements are more demanding and when exhaust fumes are not a concern. It provides more lugging power for heavier loads on uneven surfaces. IC forklifts, like your car, are not affected by unpredictable weather conditions and can operate in rain or snow.

Have questions about your internal combustion forklift’s engine? Contact ProLift for service and parts support! 

Contact ProLift

Resource Center Articles

IC_Engine

Internal Combustion Forklift Operation

An engine is a device that uses chemical energy – a fuel – to produce mechanical energy. Engines operating on this principle are called internal combustion engines and are used in an internal combustion forklift. Because automobiles use the same type of engine, many people are familiar with an internal combustion (IC) engine. While it […]

forklift forks

Worn Forks Can Take Your Forklift Out Of Service

Regular inspection of your forklift forks will help you determine when it’s time for forklift forks replacement. At minimum, your forklift’s forks are required to be inspected every 12 months and in case of severe application, more often. Forklift Forks Wear Standards During your fork inspection, you may find 10% or more wear. This discovery […]

Forklift Safety Accessories

Forklift Safety Parts

A forklift operator has a responsibility to be aware of pedestrians and other operators. In a busy warehouse this is not an easy task. To help keep their employees safe, many companies are investing in forklift safety parts and accessories. Forklift Mirrors Mirrors are affordable, easy to install and can be placed either indoors or […]