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Title: High pressure ratio turbocharger

Abstract

This patent describes a turbocharger system for an internal combustion engine. It comprises means forming a turbine adapted to be driven by exhaust gas from an internal combustion engine comprising: a turbine wheel having a central core and outwardly extending vanes, the turbine wheel being rotatable about a central axis; a meridionally divided volute for exhaust gas surrounding the turbine wheel, the meridionally divided volute including a divider wall defining first and second volute passageways with openings at the turbine wheel; means forming a high-pressure compressor driven by the turbine means, the high-pressure compressor comprising: rotating compressor blades, the compressor blades adapted to be driven in rotation about the central axis by the turbine means to deliver a flow of air at high pressures for an internal combustion engine, and blades being moveable about longitudinal axes generally transverse to the central axis to impart positive or negative pre-whirl motion to the air leaving the stator blades prior to entering the rotating blades of the compressor stage; closure means for providing a flow of engine exhaust gas from one of the first and second volute passageways into the turbine wheel; and a control means for operating the closure means and themore » stator blades in synchronization.« less

Inventors:
Publication Date:
OSTI Identifier:
5742192
Patent Number(s):
US 5025629; A
Application Number:
PPN: US 7-325916
Assignee:
NOV; NOV-91-042126; EDB-92-058568
Resource Type:
Patent
Resource Relation:
Patent File Date: 20 Mar 1989
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; INTERNAL COMBUSTION ENGINES; TURBOCHARGERS; DESIGN; EXHAUST GASES; HIGH PRESSURE; COMPRESSORS; ENGINES; EQUIPMENT; FLUIDS; GASEOUS WASTES; GASES; HEAT ENGINES; MACHINERY; SUPERCHARGERS; TURBOMACHINERY; WASTES; 330603* - Vehicle Design Factors- Engine System; 330103 - Internal Combustion Engines- Turbine

Citation Formats

Woollenweber, W E. High pressure ratio turbocharger. United States: N. p., 1991. Web.
Woollenweber, W E. High pressure ratio turbocharger. United States.
Woollenweber, W E. Tue . "High pressure ratio turbocharger". United States.
@article{osti_5742192,
title = {High pressure ratio turbocharger},
author = {Woollenweber, W E},
abstractNote = {This patent describes a turbocharger system for an internal combustion engine. It comprises means forming a turbine adapted to be driven by exhaust gas from an internal combustion engine comprising: a turbine wheel having a central core and outwardly extending vanes, the turbine wheel being rotatable about a central axis; a meridionally divided volute for exhaust gas surrounding the turbine wheel, the meridionally divided volute including a divider wall defining first and second volute passageways with openings at the turbine wheel; means forming a high-pressure compressor driven by the turbine means, the high-pressure compressor comprising: rotating compressor blades, the compressor blades adapted to be driven in rotation about the central axis by the turbine means to deliver a flow of air at high pressures for an internal combustion engine, and blades being moveable about longitudinal axes generally transverse to the central axis to impart positive or negative pre-whirl motion to the air leaving the stator blades prior to entering the rotating blades of the compressor stage; closure means for providing a flow of engine exhaust gas from one of the first and second volute passageways into the turbine wheel; and a control means for operating the closure means and the stator blades in synchronization.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {6}
}