27/09/2021
How do the turbochargers work in Land Rover?
The 3.0LV6 diesel engine uses two turbochargers, a VGT (varieble geometry turbine) type (the primary turbocharger) and a fixed vane type (the seconday
turbocharger).
Both turbochargers are used in a parellel sequential turbocharging system which enables the engine to achieve quick throttle response at low engine speeds and efficient use of exhaust gas energy at high engine speeds. The primary turbocharger operates through the entire engine speed range, but is at its most efficient at engine speeds of up to 2800 rev/min, running in a mono turbocherger mode. At engine speeds above 2800 rev/min under load, the
secondany turbocharger comes into operation, with both of the turbochargers running in a parallel bi-turbocharger mode.
The parallel sequential turbocharging system comprises the two turbochargers, a charge air intake valve, a turbine intake shut-off valve solenoid and
charge air solenoid. Operation of the system is controlled by the engine control module (ECM). The turbochargers and the charge air intake valve are interconnected by the charge air ducts of the intake air distribution and filtering system.
