The compact integration of controller, motor, and pump enables application on various vehicles.
Optimized control of motor lowers the noise.
Product is available from 30W to 80W (input).
Flow is shut at engine start in order to quickly warm-up the engine.
Valve is designed to open by the force of cooling water flow so that the valve could stay open during power off (for fail safe).
An electrically driven coolant pump supplies indirect charge-air cooling fully flexibly and on-demand in the low-temperature circuit and during turbocharger run-on after the engine has been switched off.
Engine cooling through the high-temperature circuit is via the thermostat casing with an integrated water pump driven via the exhaust camshaft by a zero-maintenance toothed belt.
In Figure 4 there is shown a preferred embodiment of the invention, in which the induction manifold 41 is a common manifold and is connected, as in the preceding embodiment, to both the compressors of the two turbo-compressor units, whilst the induction duct 42 is a common duct for the first part of its length where the injectors 43 and butterfly valves 44 are positioned, and then splits into two ducts 45 and 46 connected to the induction valves 47 and 48.
In Figure 2, the reference numeral 30 indicates two exhaust ducts which open into two manifolds 31, connected, as in Figure 1, to two turbo-compressor units.
An arrangement of this type permits a rational installation of only one turbo-compressor unit, whilst the current tendency, above all in racing engines, is to utilise at least two turbo-compressor units for the purpose of reducing the "response time" and the loss of power at low engine speeds to the minimum.
►Temperature 1050 ˚C; High speed 240.000 U/min
► Pneumatic and electrical actuating elements
► Water cooled aluminum housing
With conventional wastegated turbochargers or fixed geometry turbochargers (FGT), a turbine flow area cannot be adjusted during operation.
Knocking is abnormal combustion in which the air-fuel mixture ignites prematurely due to exposure to high temperature and pressure, creating an unwanted high-frequency noise. When the compression ratio is increased, the temperature at compression top dead center (TDC) also rises, increasing the probability of knocking.