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US 2020/0291850 A1Published application
Wastegate assembly for a turbocharger
AssigneesElringKlinger AG, Continental Automotive GmbH
InventorsChristian ROEMER, Christian KIRSCHNER, Markus PFLUEGER, Maximilian HOFFMANN
Life of this patent
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Abstract
A wastegate assembly for a turbocharger having a turbine casing has a wastegate flap, a wastegate flap lever, a wastegate spindle and a bearing bush for the wastegate spindle. In addition, the wastegate assembly has a sealing unit formed from a soft-material volume sealing ring and a diaphragm spring that contacts the volume sealing ring.
Claims6
1-9. (canceled)
The wastegate assembly (5) for an exhaust gas turbocharger having a turbine housing, comprising:
- a wastegate flap (5a);
- a wastegate flap lever (5c);
- a wastegate spindle (5b);
- a bearing bush (7) for the wastegate spindle;
- and
- a seal (11, 17) which is formed by a volumetric sealing ring (11) and a plate spring (17) in contact with the volumetric sealing ring (11), wherein the bearing bush (7) has a widening section (7a) arranged in the end region, which faces the wastegate flap lever (5c), of the bearing bush (7),
- wherein
- the volumetric sealing ring comprises soft material and is pressed into the widening section (7a) of the bearing bush (7a);
- a radial bias is present between the wastegate spindle (5b) and the bearing bush (7);
- and
- the plate spring (17) is positioned between the volumetric sealing ring (11) and the wastegate flap lever (5c).
8 more elements
Dependencies are inferred from the claim text.