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1. (WO2018195838) IMPELLER TURBINE ASSEMBLY AND TURBOCHARGER

Pub. No.:    WO/2018/195838    International Application No.:    PCT/CN2017/082081
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Thu Apr 27 01:59:59 CEST 2017
IPC: F01D 11/02
F04D 29/08
F04D 29/30
Applicants: LIU, Da
刘大
Inventors: LIU, Da
刘大
Title: IMPELLER TURBINE ASSEMBLY AND TURBOCHARGER
Abstract:
Provided is an impeller turbine assembly, comprising a rotating shaft (3), with one end of the rotating shaft (3) being installed with an impeller (1), and the other end thereof being installed with a turbine (4), wherein the impeller (1) is provided with an impeller through hole (19) matching the rotating shaft (3); the rotating shaft (3) is further provided with a nut (2) compressing the impeller (1), and the nut (2) is close to an end position of the rotating shaft (3); the rotating shaft (3) is further provided with an oil deflector ring (5) fitted with the impeller (1), a distance bush (6) fitted with the oil deflector ring (5), and a thrust ring (7) fitted with the distance bush (6), and the oil deflector ring (5), the distance bush (6) and the thrust ring (7) are all close to a middle position of the rotating shaft (3); and a friction welding point is provided between the rotating shaft (3) and the turbine (4). Firmly fixing the impeller to the rotating shaft ensures the safety of fixation of the impeller and the stability thereof during the operation; and the rotating shaft and the turbine are connected together by means of friction welding, where the friction welding achieves a high strength of connection, thereby achieving a stable connection between the turbine and the rotating shaft, so as to firmly fix the turbine.