Patent ID: 9581045
Date: 2017-02-28
CPC Classifications: F01D,F02B,F05D,Y02T

Claim:
1. A sheet metal turbine housing mounted downstream of an engine exhaust manifold, comprising: a spiral scroll part in which an exhaust gas flows so as to drive a turbine, the spiral scroll part including a first sheet metal scroll part having a first end surface extending in a thickness direction of a first sheet metal forming the first sheet metal scroll part and a second sheet metal scroll part having a second end surface opposing the first end surface and extending in a thickness direction of a second sheet metal forming the second sheet metal scroll part, and a penetration butt welded part that joins the first and second surfaces along an entire circumferential portion of the scroll spiral part; and a center core part, substantially cylindrical in shape, and disposed in a volute center part of the spiral scroll part, the center core part includes: wherein the housing portion, the bearing receiving portion, and the plurality of circumferentially spaced supports are formed integrally in one piece from a steel pipe member in an annular shape by machining.