Turbocharger shafting structure for improving radial bearing capacity of turbine end

• Main Authors: ZHANG JIAOJIAO, SHAN JIAHAO, SUI GUIYONG, SUN XUEZHI, DU ZHIPING
• Format: Patent
• Language: Chinese; English
• Published: 09.04.2024
• Subjects: BLASTING; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MACHINES OR ENGINES IN GENERAL; 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; STEAM ENGINES; WEAPONS

The utility model provides a turbocharger shafting structure for improving the radial bearing capacity of a turbine end, which belongs to the technical field of engine turbocharging and comprises a middle shell, a heat shield, a central shaft, a turbine end floating bearing, a bearing spacer sleeve, a compressor end floating bearing, a compressor impeller and a turbine. The middle shell is installed on the center shaft in a sleeved mode, and a turbine end floating bearing, a bearing spacer sleeve and a gas compressor end floating bearing are sequentially and fixedly arranged between the middle shell and the center shaft in a sleeved mode in the axial direction. The two ends of the bearing spacer sleeve abut against the turbine end floating bearing and the gas compressor end floating bearing respectively. The turbine end floating bearing is longer than the gas compressor end floating bearing, and the turbine end floating bearing and the gas compressor end floating bearing are asymmetrically arranged; the shaft