Dual Fuel Engine
DF or Duel Fuel Engines are the type of engines that can work on a mixture of diesel fuel and gas fuel or it could run on diesel fuel alone. Duel Fuel engines can not operate on gas alone since they do not posses an ignition system, nor do they have any spark plugs.
Since the engine is not a pure diesel engine and diesel is not a pure gas, this machinery does suffer from Methane slippage and fuel efficiency. Like for example, the fuel efficiency can be 5% to 8% less than in a comparable spark-ignited, lean burn engine at 100 percent load. It can even be greater on lower loads.
Lift Truck Classification and Fuel Sources
There are certain recycling materials handling applications which can prove extremely challenging for lift trucks. For example, scrap metal is amongst these issues. To be able to successfully handle items like this requires using the right type of machine for the job.
There are 7 major lift truck classes, including power sources like hydrogen fuel cell, liquid propane gas, electric, gasoline and diesel. The power source is linked to some of these particular classes. The main power sources for forklifts include Battery, Diesel, Gasoline, Propane and Fuel Cell.
The most popular overall are electric powered trucks, mostly in Class I, II and class III forklifts. In Classes V and IV, internal combustion trucks are more common. The most common electric power source is the lead-acid battery. Out of internal combustion trucks, about over 90% are propane powered.
The most common power source for lift trucks is battery. Battery powered models make up around 60 percent of the new forklifts sold in the USA. Their benefits comprise: quiet operation, less maintenance requirements, the ability to be used inside and outdoors with no harmful emissions.