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US 6,318,086 B1Granted
Turbocharger
AssigneeABB Turbo Systems AG
InventorsEsko Laustela, Karl-Heinz Rohne
Life of this patent
Estimating the term…
Abstract
A small turbocharger (8) is connected for the sealing-air supply for a turbocharger (1), which contains a shaft (2), a compressor (V1) fastened to the shaft, and a turbine wheel (T1) fastened to the shaft. The sealing-air pressure is automatically adapted to the turbine inlet pressure.
Claims5
A turbocharger for loading an internal combustion engine, comprising:
- a first shaft;
- a first compressor fastened to the first shaft and having a first compressor feed line and a first compressor discharge line;
- a first turbine wheel fastened to the first shaft and having a first feedline and a first discharge line;
- a sealing-air supply for the first turbine wheel;
- a second turbocharger working in series with the first turbocharger and the combustion engine, the second turbocharger, being smaller than the first turbocharger, including:
- a second shaft;
- a compressor fastened to the second shaft and having a second compressor feed line and a second compressor discharge line;
- and
- a second turbine wheel fastened to the second shaft and having a second feed line and a second discharge line, the second discharge line is connected directly to a sealing-air entry of the first turbine wheel of the first turbocharger.
6 more elements
Dependencies are inferred from the claim text.