Dual Fuel Engine
DF or Duel Fuel Engines are the type of engines which could run on a mixture of diesel fuel and gas fuel or it could work on diesel fuel alone. Duel Fuel engines are not able to run on gas alone as they do not have an ignition system, nor do they possess any spark plugs.
As diesel is not a pure gas, and it is not a pure diesel designed engine, it has some disadvantages in the department of Methane slippage as well as fuel efficiency.. For example, the fuel efficiency may be 5% to 8% less than in a comparable spark-ignited, lean burn engine at 100% load. It can even be lower or higher loads.
Lift Truck Classification and Fuel Sources
There are some applications that have proved a challenge for the forklift. Like for example, scrap metal is one of these problems. To be able to successfully handle items like this requires using the right type of machine for the task.
There are 7 major lift truck classes, including power sources such as liquid propane gas, hydrogen fuel cell, diesel, electric and gasoline. The power source is linked to some of these specific classes. The main power sources for forklifts comprise Gasoline, Battery, Diesel, Fuel Cell and Propane.
The most common overall are electric powered trucks, mainly in Class III, II and class I forklifts. In Classes V and IV, internal combustion trucks are more common. The most common electric power source is the lead-acid battery. Amongst internal combustion trucks, about over 90 percent are powered by propane.
The battery is the forklifts most popular power source. Battery fueled models make up around 60% of the new forklifts sold within the United States. Their benefits include: less maintenance requirements, quiet operation, the ability to be utilized inside and outdoors with no harmful emissions.