Thermal protection device for peripheral unit of e.g. spark ignition engine, has fixation units traversing orifices of monoblock thermal screen, and connecting turbine block and case that is interposed between turbine and compressor blocks

摘要

The device has a monoblock thermal screen (7) locally arranged around a turbine block enclosing a turbine of a turbocharger. The screen is provided with orifices (11) for its fixation, and a bottom wall (70) peripherally extended by a flanged edge (71). Fixation units i.e. screws, traverse the orifices, and connect the turbine block and a central case. The central case surrounds an area where a connection shaft between the turbine and an associated compressor passes. The central case is interposed between the turbine block and a compressor block enclosing the compressor.