SEAL STRUCTURE OF TURBOCHARGER AND TURBOCHARGER HAVING THE SEAL STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a seal structure of a turbocharger capable of stably maintaining seal performance even when a seal ring for preventing a lubricating oil from flowing out from the peripheral side of a turbine shaft receives an external pressure such as an exhaust gas pressure and also providing sufficient heat radiating property to a bearing housing and a turbocharger having the seal structure.;SOLUTION: A seal ring stopper 7 is press-fitted to the inner peripheral surface of the bearing housing 4 on the compressor wheel side of the seal ring 5 fitted to the turbine wheel 2 side end of the turbine shaft 3. Thus, the axial movement of the seal ring 5 can be restricted by the seal ring stopper 7 with all the outer peripheral surface of the seal ring 5 brought into contact with the inner surface of the bearing housing 4.;COPYRIGHT: (C)2006,JPO&NCIPI