Exhaust-gas turbocharger
AssigneeBorgWarner Inc.
InventorMichael Loewenberg
Life of this patent
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Abstract
An exhaust-gas turbocharger (1), having a shaft (2) which has an outer diameter (A2); a turbine wheel (5) which is fastened to the shaft (2); and a connecting device (8) via of which the shaft (2) is fastened to the turbine wheel (5). The shaft (2) has, in the region of an end side (3), a shaft shoulder (4) with an outer diameter (A4) larger than the outer diameter (A2) of the shaft (2), The turbine wheel (5) has an external thread portion (7) integrally formed on its wheel rear side (6) The connecting device (8) has a sleeve nut (8A) which is screwed onto the external thread portion (7) and, in a process, engages behind the shaft shoulder (4) in order to brace the shaft (2) against the turbine wheel (5).
Claims14
An exhaust-gas turbocharger (1), having
- a shaft (2) which has an outer diameter (A2);
- a turbine wheel (5) which is fastened to the shaft (2);
- and
- a connecting device (8) by means of which the shaft (2) is fastened to the turbine wheel (5);
- wherein
- the shaft (2) has, in the region of an end (3), a shaft shoulder (4) which comprises an outer diameter (A4) larger than the outer diameter (A2) of the shaft (2);
- the turbine wheel (5) has a wheel rear side (6) and has an external thread portion (7) integrally formed on its wheel rear side (6);
- and
- the connecting device (8) has a sleeve nut (8A) which is screwed onto the external thread portion (7) and engages behind the shaft shoulder (4) in order to brace the shaft (2) against the turbine wheel (5).
A rotor (12) of an exhaust-gas turbocharger (1), having
- a shaft (2) which has an outer diameter (A2);
- a turbine wheel (5) which is fastened to the shaft (2);
- and
- a connecting device (8) by means of which the shaft (2) is fastened to the turbine wheel (5);
- wherein
- the shaft (2) has, in the region of an end side (3), a shaft shoulder (4) which has an outer diameter (A4) larger than the outer diameter (A2) of the shaft (2);
- the turbine wheel (5) has an external thread portion (7) integrally formed on its wheel rear side (6);
- and
- the connecting device (8) has a sleeve nut (8A) which is screwed onto the external thread portion (7) and engages behind the shaft shoulder (4) in order to brace the shaft (2) against the turbine wheel (5).
Dependencies are inferred from the claim text.