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The M2 is also used by bus manufacturers, with both cowled-chassis and cutaway-cab configurations supporting body assemblies. The M2 has been produced by Freightliner in its Mount Holly, North Carolina since June 2002; [3] for Latin American markets, Freightliner has assembled the M2 in Mexico in Santiago Tianguistenco since 2003. [4]
Oil cooling is the use of engine oil as a coolant, typically to remove surplus heat from an internal combustion engine. The hot engine transfers heat to the oil which then usually passes through a heat-exchanger, typically a type of radiator known as an oil cooler. The cooled oil flows back into the hot object to cool it continuously.
The viscosity of oil can be ten times greater than water, increasing the energy required to pump oil for cooling, and reducing the net power output of the engine. Comparing air and water, air has vastly lower heat capacity per gram and per volume (4000) and less than a tenth the conductivity, but also much lower viscosity (about 200 times lower ...
Expansion tank in a 1987 Saab 90 (brown plastic tank with white lid at top of picture) An expansion tank, also known as "overflow bottle", is also used in the cooling system of most internal combustion engines, to allow the coolant, such as antifreeze, and the air in the system to expand with rising temperature and pressure. The tank is also ...
In 2019 alone, Freightliner was forced to issue safety recalls 24 separate times by the NHTSA, and there have been over 100 recalls total on its flagship truck, the Cascadia. The judge found that Freightliner had no system in place to track faults, and ordered $5 million of the fine be applied to upgrading outdated paper-based systems and ...
A coolant is a substance, typically liquid, that is used to reduce or regulate the temperature of a system. An ideal coolant has high thermal capacity, low viscosity, is low-cost, non-toxic, chemically inert and neither causes nor promotes corrosion of the cooling system. Some applications also require the coolant to be an electrical insulator.
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Cooling water, for instance, cools an engine, while heating water in a hydronic heating system heats the radiator in a room. Water is the most common heat transfer fluid because of its economy, high heat capacity and favorable transport properties.