Influence of the lubricating oil pressure and temperature on the performance at low speeds of a centrifugal compressor for an automotive engine

Pierre Podevin (1) , Adrian Clenci (2) , Georges Descombes (1)

1 CMGPCE - Laboratoire de Chimie moléculaire, génie des procédés chimiques et énergétiques
2 Automotive Department

Currently, turbocharged common rail high pressure direct injection Diesel engines are regarded as state-of-the-art. The use of the turbocharging technique in gasoline engines is also increasing, in order to achieve further fuel consumption reductions via downsizing. As the specific power outputs of both Diesel and gasoline engines rise, the low-end torque behavior of such engines and turbo-lag are becoming increasingly critical. This is primarily a result of the specific characteristics of turbochargers and internal combustion engines themselves.

Mots clés: friction losses; mechanical efficiency; Compressor; torquemeter; isentropic efficiency

Domaines: Thermique [physics.class-ph]; Thermique [physics.class-ph]

Pierre Podevin, Adrian Clenci, Georges Descombes. Influence of the lubricating oil pressure and temperature on the performance at low speeds of a centrifugal compressor for an automotive engine. Applied Thermal Engineering, 2010, 31 (2-3), pp.194. ⟨10.1016/j.applthermaleng.2010.08.033⟩. ⟨hal-00692332⟩