Traitement en cours

Veuillez attendre...

Paramétrages

Paramétrages

Aller à Demande

1. WO2020023372 - TURBOCOMPRESSEUR POUR MOTEUR À COMBUSTION

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

Claims

1 A turbocharger for a combustion engine, comprising

a housing (3),

at least one driven compressor blade (4),

in particular at least one driving turbine blade (5), and

an actuating arrangement (2) for regulating the turbocharger (1),

wherein a bushing (9) of the actuating arrangement (2) is fixed in an opening (10) of the housing (3),

characterized in that,

the bushing (9) is connected to the housing (3) in a bonded connection by means of a weld (11).

2. The turbocharger according to claim 1, characterized in that the weld (11) is fabricated by means of a laser beam.

3. The turbocharger according to claim 1, characterized in that the weld (11) is effected by means of electron beam welding or metal inert gas (MIG) welding or Wolfram inert gas (WIG) welding.

4. The turbocharger according to one of the preceding claims, characterized in that an auxiliary material (12) is provided in the area of the weld (11), wherein the auxiliary material (12) differs from a material of the bushing (9) and a material of the housing

(3)·

5. The turbocharger according to claim 4, characterized in that the auxiliary material (12) is in the form of a ring (12) in front of the weld at least partially encompassing, in particular completely encompassing, the bushing (9).

6. The turbocharger according to claim 4 or 5, characterized in that the bushing (9) comprises a retaining sleeve (9c), wherein the auxiliary material (12) is arranged between the retaining sleeve (9c) and the housing (3).

7. The turbocharger according to one of claims 4 to 6, characterized in that at least either, or both, the housing (3) or the bushing (9) consists of a steel having a high carbon content of greater than 0.22%, in particular greater than 0.4%.

8 The turbocharger according to one of claims 4 to 7, characterized in that at least either, or both, the housing (3) or the bushing (9) is formed as a cast steel component.

9. The turbocharger according to one of claims 4 to 8, characterized in that the auxiliary material (12) consists of an alloy with good weldability and a nickel content of greater than 5%, in particular greater than 10%.

10. The turbocharger according to one of the preceding claims, characterized in that the actuating arrangement (2) comprises a valve, in particular a turbine regulating valve on the exhaust gas side, more particularly a wastegate, to reduce the load on the turbine blade (5) in a controllable manner.

11. The turbocharger according to one of the preceding claims, characterized in that a weld (14) for a shaft (7) which comprises a swing arm (8) and is guided into the bushing (9) is effected on the same jig as the weld (11) for the bushing (9).

The turbocharger according to one of the preceding claims, characterized in that the bushing (9) is mechanically pressed into the opening (10) of the housing (3) before the welding process.