The functions of tractor radiators
The most efficient tractor engine will use approximately 35% of its energy in useful actions of driving, plowing, skidding, transporting and other agricultural tasks. Excess 65% of the energy produced will be lost in the form of sound energy, thermal energy, radiant energy, vibrations and friction.
A sufficiently cooled engine and its counterpart, a sufficiently warm engine, are necessary for optimum tractor engine performance. An overcooled engine can cause excessive damage to engine components. Pistons and liners are designed to maintain very specific and minimal clearances.
An overcooled engine will have its liners cooler than hot pistons. Aluminum pistons generally expand faster than steel liners and therefore there will be scarring between the two surfaces. This damages the pistons, piston rings, and liner surface.
An excessively hot engine will cause all internal components to expand beyond normal tolerances, resulting in loose components and burned tractor engine parts. This is a phenomenon mechanics refer to as a “shot” engine or a “stuck” engine. The tractor radiator removes excess heat from the engine. The coolant that circulates through the engine can be cooled through the radiator of the tractor.
Thermostats assist in this cooling process by preventing hot coolant from escaping from the engine during the cranking phase when the engine is cold and by allowing coolant to flow through the radiator when the engine’s temperature is above operating limits. design temperature. The tractor radiator can be made of aluminum or copper or aluminum or copper alloys. Aluminum or copper are used as both have a high heat capacity, which is the ability to absorb and release a large amount of heat very easily.
The tractor radiator basically has rows of tubes, and thin strips of metal are attached to these tubes. The coolant is forced through the tubes of the water pump. Typically, coolant flows from the top of the radiator, down through the tubes, and back to the engine block. Specially designed radiator hoses make these high-temperature connections between the engine and the radiator.
Thin strips of the same or similar metal are laid over these rows of metal tubes. This effectively increases the surface area of the tubes, allowing heat from the refrigerant to conduction to the fins. Fins are typically designed as fins per inch. The 8N Ford tractor radiator and the David Brown 990 model radiator have eight (8) fins per inch, the Allis Chalmers radiator for the D17 has seven (7) fins per inch, the John Deere radiator for the 3020 model has ten (10 ) fins per inch
The other main component of the cooling system is the radiator cap. This serves to maintain a high pressure in the radiator, thus preventing the coolant from boiling over, and acts as a pressure relief valve that releases coolant into the reservoir when hot and into the engine when cold.