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Constant pressure turbocharging

In the constant-pressure turbocharging system each cylinder of exhaust gas is piped to a common exhaust gas manifold.

Constant Pressure turbocharger

From the manifold, a single pipe leads to the turbine. One turbocharger is sufficient. However, two turbochargers are provided for a higher number of cylinders. The heat energy of the exhaust gas is utilized for running the turbine.

Advantages

  • High turbine efficiency
  • Good performance at high load
  • Efficient and smooth turbine operation
  • Less specific fuel consumption
  • Exhaust piping simple
  • Flexibility in turbine positioning

Disadvantages

  • Poor performance at part load
  • Less sensitivity
  • Scavenge assistance essential
  • Auxiliary blower required while running at low load

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