Exhaust gas turbocharger

The wastegate insert in the turbine housing optimizes turbine outflow and mass flow injection, addressing suboptimal outflow behavior and heat losses in exhaust gas turbochargers, enhancing performance and catalyst response.

DE102015017467B4Active Publication Date: 2026-05-28BORGWARNER INC
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Patent Information

Application Number
DE102015017467
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2015-02-03
Publication Date
2026-05-28
Estimated Expiration
2035-02-03

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Abstract

Exhaust gas turbocharger (1) - with a compressor housing (2); - with a bearing housing (3); - with a turbine housing (4), • in which a turbine wheel (5) is arranged, • which has a housing inlet (6), • which has a turbine spiral (7) adjoining the housing inlet (6), • which has a housing outlet (8), and • which has a wastegate arrangement (9) which, in the open state, brings the housing inlet (6) into flow communication with the housing outlet (8) to supply a wastegate mass flow, - wherein a wastegate insert (10) is arranged in the turbine housing (4) between the turbine wheel (5) and the housing outlet (8), into which the open wastegate assembly (9) introduces the wastegate mass flow, - wherein the wastegate insert (10) defines a position and geometry of a turbine diffuser area, characterized in that, - that the wastegate insert (10) has at least one radially inwardly directed through-hole, and that the wastegate insert (10) has a waisted sleeve body (32) which is provided with at least one radially inwardly directed through-hole (33).
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Citation Information

Patent Citations

  • Ring valve device for an exhaust gas turbocharger

    DE102013006369A1

  • Turbocharger design

    DE19708000A1

  • Exhaust gas turbocharger for a motor vehicle

    DE202008011150U1