Internal combustion engine including a compressor and method for operating an internal combustion engine

US7246490B2 · kind B2 · utility

Assignee

• Daimlerchrysler AG · US

Inventors

• Siegfried Sumser · Stuttgart, DE
• Peter Fledersbacher · Stuttgart, DE
• Helmut Finger · Echterdingen, DE
• Paul Löffler · Stuttgart, DE
• Manfred Stute
• Klaus Rössler · Altbach, DE

Key dates

• Filing date: Sep 8, 2006
• Grant date: Jul 24, 2007
• Expiry date: Sep 8, 2026

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

In an internal combustion engine and a method of operating the engine which comprises a compressor having an impeller disposed in a housing including a main inlet duct in which the impeller is supported and an additional inlet duct joining the main inlet duct in the area of the compressor impeller, and valving means for controlling the gas supply to the inlet ducts and an electric motor connected to the compressor impeller for rotation therewith so that the compressor is operable by the electric motor and by the pressure drop in the air intake line of the engine, a flywheel is coupled to the impeller for storing rotational energy when the impeller is driven by the intake gas and returning the energy to the impeller when the pressure drop collapses upon a sudden increase in the demand for engine power.