Patent ID: 8932008
Filing Date: 2015-01-13
Classification: F16B

Abstract:
1. An exhaust gas turbocharger having variable turbine geometry, the exhaust gas turbocharger comprising: at least one housing component having at least one connecting point; an adjustable VTG-guide vane configuration for changing a turbine flow cross-section, said adjustable VTG-guide vane configuration having at least one recess; and at least one securing element for securing said VTG-guide vane configuration to said at least one housing component, said securing element including a head section, a thread section, and a shank having an axial direction and a cross-section changing in said axial direction; said cross-section of said shank configured with said changing cross-section causing said cross-section to have a substantially uniform bending stress profile in said shank as compared to a securing element with a constant shank cross-section, by taking a qualitative and/or quantitative predetermined bending torque profile in said shank into account; said securing element being secured in said recess of said VTG-guide vane configuration through to said connecting point of said at least one housing component; said shank of said securing element having a narrowed portion being narrowed compared to said thread section, and said adjustable VTG-guide vane configuration having at least one guide vane mounted to pivot about said narrowed portion of said shank of said securing element.