Patent ID: 6945046

Claim:
Casing aggregate for the turbine of an exhaust turbocharger, comprising: a. a spiral casing adapted to surround the running wheel of the turbine; b. a tongue-like wall part (tongue) in the inside of the spiral casing; c. an inlet connection; d. an outlet connection; e. a flange adapted for connecting to a bearing casing of the turbocharger; f. wherein the casing aggregate is manufactured by thin-walled precision casting; g. wherein the casing aggregate is comprised of at least two parts, so that at least one separation joint is present; and h. wherein the separation joint is arranged as follows: i. it runs in an axially perpendicular level; ii. it runs along the apex line of the spiral casing; iii. it extends over an arc of a circle of approximately 270 degrees; iv. it lies outside of the area of the tongue.