Turbocharger comprising a torsional-vibration damper

• Main Author: LOOS MARKUS
• Format: Patent
• Language: English
• Published: 07.02.2007
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; ENGINE PLANTS IN GENERAL; ENGINEERING ELEMENTS AND UNITS; GAS-TURBINE PLANTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MACHINES OR ENGINES IN GENERAL; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; SHOCK-ABSORBERS; SPRINGS; STEAM ENGINES; THERMAL INSULATION IN GENERAL; WEAPONS

The turbocharger has a high-speed rotor unit with turbocharger shaft (14), turbine rotor (22), and compressor rotor. A torsion oscillation damper (36) is located on the shaft to dampen shaft oscillations generated by higher engine operation. The damper is e.g. a viscose torsional vibration damper, oil displacement damper, rubber damper, or silicone oil damper. The damper is fastened to the turbocharger shaft in the area of the compressor, and esp. on the inlet side in front of a compressor hub (25) of the compressor rotor.