Patent · US Active

Exhaust gas turbocharger for an internal combustion engine

US7870731B2 · kind B2 · utility

7Cited by

14References

10Claims

0Family size

Assignee

Daimler AG · DE

Inventors

Peter Fledersbacher · Stuttgart, DE
Torsten Hirth · Rutesheim, DE
Siegfried Sumser · Stuttgart, DE

Key dates

Filing date	Oct 27, 2007
Grant date	Jan 18, 2011
Priority date	—
Expiry date	Jun 14, 2029

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04D29/4213
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

In an exhaust gas turbocharger for an internal combustion engine having a turbine wheel connected, by means of a shaft, to the compressor wheel of a compressor which includes a variable inlet geometry comprising a plunger and a sleeve-shaped partition for controlling an auxiliary duct leading radially to the compressor wheel, which is provided with compressor wheel blades to which air is supplied axially via an axial inlet passage and radially via a radial wheel inlet area, the compressor wheel includes a contoured ring provided at its outer circumferential surface with auxiliary blades disposed over, and aligned with, the compressor wheel blades in the radial and the axial wheel inlet region of the compressor wheel.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.