003241t
Figure 4
The engine cooling system, closed circuit forced circulation
type, generally incorpor ates the following components:
- Expansion tank; placement, shape and dimensions are
subject to change according to the engine’s equipment.
- Radiator, which has the duty to dissipate the heat
subtracted to the engine by the coolin g liquid. Also this
component will have specific peculiarities based on the
equipment developed , both for what concerns the
placement and the dimensions.
- Visc pusher fan, having the duty to increase the heat
dissipating power of the radiator. This component as well
will be specifically equipped based on the engine’s
development.
COOLING SYSTEM LAYOUT (4 cyl. engines)
Water coming out from thermostat
Water recircu latin g in engine
Water coming into pump
- Heat exchanger to cool the lubrication oil: even this
component is part of the engine’s specific equipment.
- Centrifugal water pump, placed in the front part of the
engine block.
- Thermostat regulating the c irc ulation of the cooling
liquid.
- The circuit may eventually be extended to the
compressor, if this is included in th e equipment.
TO RADIATOR
FROM RADIATOR
E NG I NE S SECTION 1 − GENERAL SPECIFICATIONS 9
ED. FEBUARY 2003
COOLING SY STEM
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