Intake device for an internal combustion engine having impulse charging

US6886517B2 · kind B2 · utility

Assignee

• Filterwerk Mann & Hummel GmbH · DE

Inventors

• Jochen Linhart · Waiblingen, DE
• Michael Fasold · Auenwald, DE

Key dates

• Filing date: Dec 3, 2002
• Grant date: May 3, 2005
• Expiry date: Dec 10, 2022

Classification

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

Abstract

An intake head device for an internal combustion engine, which is suitable for impulse charging and/or residual exhaust gas purging, including a pressure accumulator (24) which may apply overpressure to the pressure passage via a pressure passage, so that this produces residual exhaust gas purging of the cylinder (16) when the inlet valve (18) is open and the impulse flap (21) is closed. The impulse charging is performed by a partial vacuum which is generated in the accumulator passage (22) by the air intake of the cylinder (16). The pressure accumulator arrangement of the invention has the advantage that the closing time of the flap (21) may be longer.