Engines for Forklifts - An engine, otherwise referred to as a motor, is an apparatus which changes energy into functional mechanical motion. Motors that transform heat energy into motion are called engines. Engines are available in numerous types like for example internal and external combustion. An internal combustion engine normally burns a fuel with air and the resulting hot gases are used for generating power. Steam engines are an illustration of external combustion engines. They use heat to be able to generate motion using a separate working fluid.
In order to produce a mechanical motion through varying electromagnetic fields, the electrical motor has to take and create electrical energy. This particular kind of engine is very common. Other types of engine could be driven making use of non-combustive chemical reactions and some will make use of springs and be driven through elastic energy. Pneumatic motors function by compressed air. There are various designs based on the application needed.
ICEs or Internal combustion engines
Internal combustion occurs when the combustion of the fuel mixes with an oxidizer inside the combustion chamber. In the IC engine, higher temperatures will result in direct force to certain engine parts like for instance the turbine blades, nozzles or pistons. This force produces useful mechanical energy by means of moving the part over a distance. Normally, an ICE has intermittent combustion as seen in the popular 2- and 4-stroke piston motors and the Wankel rotary engine. Nearly all jet engines, gas turbines and rocket engines fall into a second class of internal combustion motors referred to as continuous combustion, which takes place on the same previous principal described.
Steam engines or Stirling external combustion engines very much vary from internal combustion engines. The external combustion engine, where energy is to be delivered to a working fluid such as liquid sodium, pressurized water, hot water or air that is heated in a boiler of some kind. The working fluid is not combined with, comprising or contaminated by combustion products.
A range of designs of ICEs have been created and are now available together with numerous strengths and weaknesses. When powered by an energy dense fuel, the internal combustion engine provides an efficient power-to-weight ratio. Even though ICEs have succeeded in various stationary applications, their real strength lies in mobile applications. Internal combustion engines control the power supply intended for vehicles like for instance cars, boats and aircrafts. Several hand-held power equipments utilize either battery power or ICE equipments.
External combustion engines
In the external combustion engine is made up of a heat engine working using a working fluid like for instance gas or steam that is heated through an external source. The combustion will occur through the engine wall or through a heat exchanger. The fluid expands and acts upon the engine mechanism that produces motion. Next, the fluid is cooled, and either compressed and used again or thrown, and cool fluid is pulled in.
Burning fuel along with the aid of an oxidizer in order to supply the heat is referred to as "combustion." External thermal engines may be of similar operation and configuration but use a heat supply from sources such as exothermic, geothermal, solar or nuclear reactions not involving combustion.
The working fluid can be of whichever constitution. Gas is the most common kind of working fluid, yet single-phase liquid is occasionally used. In Organic Rankine Cycle or in the case of the steam engine, the working fluid changes phases between gas and liquid.
Click to Download the pdf