Patent ID: 11879389
Assignee: TURBO SYSTEMS SWITZERLAND LTD.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 0:
1. An exhaust turbines comprising:
a turbine wheel comprising a plurality of rotor blades;
an exhaust outlet duct arranged downstream of the rotor blades of the turbine wheel, wherein the exhaust outlet duct is delimited radially on an outside by an axial turbine diffusor, wherein an exhaust mass flow can be discharged in an axial direction of flow through the exhaust outlet duct, and wherein the axial turbine diffusor opens downstream, radially outward, at a non-constant diffusor opening angle, in such a way that a first diffusor opening angle deviates from a second diffusor opening angle by at least 1°; and
a waste gate duct, an outlet region of which opens into the axial turbine diffusor or directly downstream of the axial turbine diffusor into the exhaust outlet duct and through which a waste-gate mass flow can be injected into the exhaust mass flow, wherein the waste gate duct is designed to generate a substantially axial direction of flow of the waste-gate mass flow at the outlet region of the waste gate duct, wherein the axial turbine diffusor has a first diffusor portion having an increasing diffusor opening angle and a second diffusor portion, located downstream of the first diffusor portion, having a decreasing diffusor opening angle, and wherein a transition angle in a transition region between the axial turbine diffusor and a radial inner wall of the waste gate duct is less than 5°.