Air filter is an essential component of a tractor that helps fuel to burn efficiently and enables the engine to deliver required power. The purpose of an air filter is to filter the particulate matter present in the air and allow only clean air to enter the internal combustion chamber of the engine and mix with fuel to generate power. Air filters in a tractor are of two types, namely dry filter, and wet filter. In this blog we will understand the difference between dry air filter and wet air filter in detail.
Air filters are fibrous or porous material located near the tractor engine and are easily serviceable. Air filter helps filter particulate matter like dust and grime before the air enters the cylinders of an engine for combustion.
Air filters are a must in a tractor because tractors work in an environment full of dust. If an air filter is not provided, then the dust particles will enter causing wear and damage to the engine parts like valves and piston affecting the peak performance. Hence, air filter is a must in a tractor.
The engine of a tractor is known as an internal combustion engine, wherein the fuel’s heat energy is converted into mechanical energy through the burning of fuel inside the engine itself. The fuel used in a tractor engine is essentially diesel and its working is different from the engine of CNG Tractors and Electric Tractors.
Combustion in a diesel engine takes place when clean air is sucked in through an inlet valve and the hot compressed air mixes with the diesel at the end of the compression stroke to produce an explosion pushing the piston down in the firing stroke. As a result, the exhaust valve opens, and the piston moves up, driving the burnt gases out of the cylinder. For a detailed explanation, you can read How Tractor Engine Works.
In the complete combustion process, the passing of clean air into the engine is necessary, which is ensured through either a dry air filter or a wet air filter.
The dry air filter is a common and widely used type in tractors. It has a folded paper or fabric part that catches tiny particles from the air passing through it. This design helps the dry filter capture contaminants while allowing the filtered air to pass through to the engine.
Some popular tractors that are fitted with dry filters include Sonalika DI 30 Baagban and John Deere 5105.
The wet air filter, also known as an oil bath filter, operates on a different principle. It consists of a filter element submerged in oil. When air goes through the oil, contaminants stick to the oil, effectively trapping them and stopping them from reaching the engine.
Some popular tractors that are fitted with wet air filters include Swaraj 744 XM and New Holland 3600 TX Heritage Edition.
Usually, dry filters are good at cleaning the air, capturing a lot of different particles. The folded design and the material used in the filter help make them work well.
On the other hand, wet filters also work well, but how well depends on the oil quality and particle size. They are good at catching smaller particles.
Choosing between dry and wet filters isn't a one-size-fits-all decision. Each type has its advantages and works better in specific conditions. Knowing the differences in these filters helps tractor owners and operators make smart choices that match their needs. It ensures the engine works well and lasts longer. Always refer to the tractor manufacturer's air filter types and maintenance recommendations. They know best about what works well with your tractor model.
Whether driving through dry farmlands or dealing with humid weather, having the right air filter is crucial for a tractor's health. By understanding how dry and wet filters work, farmers can make informed decisions, protecting their tractors and making them more efficient in the field.