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EXHAUST-GAS TURBOCHARGER

  • US 20170107896A1
  • Filed: 05/19/2015
  • Published: 04/20/2017
  • Est. Priority Date: 05/20/2014
  • Status: Active Application
First Claim
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1. An exhaust-gas gas turbocharger (1) comprisinga compressor (2) having a compressor wheel (3),a turbine (4) having a turbine wheel (5) and a turbine housing (6),a shaft (7), which connects the compressor wheel (3) to the turbine wheel (5), anda number of S≧

  • 2 of channels (13, 14), which are formed in the turbine housing (6) and are intended for guiding the exhaust gas onto the turbine wheel (5),wherein an axial direction (8) is defined along the shaft (7), from the compressor (2) to the turbine (4), a radial direction (9) is defined perpendicularly to the axial direction (8), and a circumferential direction (10) is defined around the axial direction (8), counter to the direction of rotation of the turbine wheel (5),wherein each channel (13, 14) directs flow against the turbine wheel (5) over the entire width of the latter, as seen in the axial direction (8), and over a segment, as seen in relation to the circumferential direction (10),wherein the turbine wheel (5) comprises a number of Z≧

    10 turbine blades (12), andwherein the turbine blades (12) are defined in the form of main blades (22) and intermediate blades (23), wherein the intermediate blades (23), at least at their hub-side ends (24), do not extend as far toward the turbine outlet, as seen in the axial direction (8), as the main blades (22).

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