TURBINE HOUSING AND ASSOCIATED EXHAUST-GAS TURBOCHARGER

摘要

A turbine housing of an exhaust-gas turbocharger may include at least two spiral-shaped exhaust-gas channels separated from one another via a partition. The at least two channels may be delimited radially to the outside by the turbine housing and radially to the inside by at least two spiral tongues. A first spiral tongue may be associated with one of the channels and a second spiral tongue may be associated with the other of the channels. The at least two spiral tongues may extend in opposite directions away from the partition in a direction towards the turbine housing. According to an example, the at least two spiral tongues may be configured such that, under an increasing thermomechanical loading, the first spiral tongue fails before the second spiral tongue.

主权项

1. A turbine housing of an exhaust-gas turbocharger, comprising:
at least two spiral-shaped exhaust-gas channels separated from one another via a partition, the at least two spiral-shaped exhaust-gas channels being delimited radially to the outside by an inner surface of the turbine housing and radially to the inside by at least two spiral tongues, wherein the at least two spiral tongues are respectively associated with one of the at least two spiral-shaped exhaust-gas channels and extend in opposite directions away from the partition, wherein the at least two spiral tongues include a first spiral tongue and a second spiral tongue, wherein the first spiral tongue extends between the partition and an exhaust pipe-side region of the turbine housing, and the second spiral tongue extends between the partition and a bearing housing-side region of the turbine housing, and wherein the at least two spiral tongues are configured such that, under an increasing thermomechanical loading, the first spiral tongue fails before the second spiral tongue.