Have you ever wondered why diesel engines are used in heavy vehicles? Well, there are many reasons to find an accurate answer to this question.
Diesel engines possess huge properties. Different people have different viewpoints regarding the advantages and use of a diesel engine. However, the characteristics of a diesel engine can vary from one vehicle to another.
So let’s look at the main reasons for using a diesel engine in giant vehicles.
Main Reasons Why Diesel Engines Are Used in Heavy Vehicles
The merging of various parts in an engine defines the purpose and performance of the vehicle.
Therefore, the diesel engine has everything to do with the performance, power, and durability of a particular automobile. So let’s start by exploring the fundamental reasons that justify the specific use of diesel engines in heavy vehicles.
1. Highest Torque
Bulky automobiles such as trucks and cars require enormous force to run at low speeds. As almost everyone knows that gasoline burns faster than diesel, the diesel engine achieves higher torque at low speed.
This is the first requirement of any heavy vehicle. The lowest gasoline RPM leads to rapid combustion, which increases the economic cost of the automobile.
If you use a bulky vehicle to make money, using the gasoline engine can represent a big loss.
The diesel engine, on the other hand, is the best source of income, as there is no need to refuel frequently. This is why diesel engines are used in heavy vehicles.
2. Greater Efficiency
The higher temperature and power needs of heavy automobiles such as trains or ships lead to a rapid ignition spark.
In this scenario, slow-burning diesel has proven to be the most efficient fuel that burns at a moderate temperature.
Locomotives and ships have nothing to do with the size of the vehicle, as speed is not the concern of these automobiles, but energy efficiency plays an imperative role.
However, the engine displacement of cars can vary. Regardless of the size of the diesel engine, it will certainly offer the greatest efficiency.
One can even use effective maintenance tips to modify the engine as well. Their efficiency makes diesel engines ideal for heavy vehicles.
3. Maximum Compression Ratio
The larger size of the diesel engine for cars is built taking into account its extreme compression ratio and vibration level.
As the larger vehicle does not care about weight or vibrations, the diesel engine suits it perfectly. The huge body of the bulky vehicle is enough to entirely diffuse or dampen these vibrations.
Furthermore, the advanced diesel engine has managed to minimize NVH (Noise, Vibration, and Harshness) for small cars as well. This is why many small cars opt for diesel engines.
How to Maintain Heavy Vehicles Equipped with Diesel Engines
Regular maintenance is crucial for heavy industrial vehicles equipped with diesel engines to extend their lifespan. The main maintenance tasks include:
Fuel Filter Replacement
Diesel engines are equipped with two fuel filters that need to be replaced every ten to fifteen thousand kilometers. Diesel fuel often absorbs water due to condensation in the fuel tank.
Regularly changing these filters prevents water particles from compromising the diesel engine’s performance.
Air Filter Maintenance
The air filter should be changed approximately every twelve thousand miles. However, it is essential to periodically inspect the air filter because a dirty filter can restrict airflow to the engine, causing it to consume more fuel than usual during acceleration.
Radiator Maintenance
Diesel engines operate at higher temperatures than gasoline engines, which puts extra strain on the radiator.
Good radiator maintenance is essential to prevent overheating, which can damage the gasket, cylinders, seals, and other critical engine components.
FAQ on Diesel Engines Used in Heavy Vehicles
- Are diesel engines more fuel-efficient than gasoline engines in heavy vehicles?
Diesel engines tend to be more fuel-efficient in heavy vehicles due to their higher thermal efficiency and lower fuel consumption per kilometer, making them cost-effective for long-distance transport.
- Do diesel engines produce more emissions than gasoline engines?
Diesel engines traditionally produced more nitrogen oxides (NOx) and particulate emissions than gasoline engines.
However, modern diesel engines have advanced emission control technologies to reduce these pollutants and meet strict environmental standards.
- Are there any disadvantages to using diesel engines in heavy vehicles?
Diesel engines can be noisier and emit more visible exhaust gases than gasoline engines. Additionally, diesel fuel can be more expensive than gasoline in some regions.
- How do diesel engines contribute to fuel savings in heavy vehicles?
Diesel engines offer better fuel economy due to their higher compression ratios and the energy density of diesel fuel, leading to more power and longer ranges between refueling stops.
- Can heavy vehicles use alternative fuels instead of diesel?
Heavy vehicles can use alternative fuels like compressed natural gas (CNG) or liquefied natural gas (LNG) to reduce emissions. However, these options may require engine modifications and infrastructure changes.
- Are there environmental concerns associated with diesel engines in heavy vehicles?
Diesel engines have been criticized for their emissions, but modern diesel technology includes emission reduction systems such as diesel particulate filters (DPF) and selective catalytic reduction (SCR) to mitigate environmental impact.
Watch this video from Truck Tropia to find out why the huge semi-trailers running on highways are diesel-powered!
The Verdict
Cost, compression, combustion, torque, and many other characteristics are the reasons why diesel engines are used in heavy vehicles. So make the most of your bulky automobile with a clever diesel engine today.