Mazda Miata, MX-5, Eunos & Roadster

Short Description
These cars use a conventional cooling system in which the water-based coolant is circulated around the engine by a small centrifugal pump driven by a belt from the crankshaft. Engine heat is transferred to the coolant, which is constantly circulated through the radiator. Air passing though the radiator matrix reduces coolant temperature before it circulates once again through the engine. Hot air is sucked from the engine compartment by the airstream created by the moving car. An electric cooling fan switches on at a predetermined coolant temperature to draw air through the radiator matrix. This ensures adequate cooling in very hot temperatures, or when in slow-moving traffic.

Website: www.veloce.co.uk | Filesize: 319kb
No of Page(s): 5

Content
…
During cold weather, the interior of the car is heated by a system like the engine cooling system running in reverse: hot coolant from the engine is diverted through the heater matrix below the dashboard, and air is passed through the matrix to extract heat to warm the passenger compartment. The heater control allows the occupants to control a combination of recirculated and fresh air, and to boost the incoming airflow with an electric fan. An optional air conditioning system is available. This works pretty much like a domestic refrigerator. An engine-driven compressor circulates refrigerant through the condenser - effectively another radiator - mounted in the nose of the car. The condenser, backed up by an electric fan, is designed to dump unwanted heat into the passing airstream. Refrigerant is piped to the cooling unit (evaporator) mounted under the dashboard. Hot air from the car’s interior is passed through the evaporator, the refigerant absorbing the air’s heat and thus reducing its temperature. The warmed refrigerant evaporates into a gas which is pumped back to the condenser, where it cools and liquefies: the cycle is then repeated.
…

Get the file Download here