Valve flap device for a bypass valve of a turbocharger

US11359637B2 · kind B2 · utility

Assignee

• VITESCO TECHNOLOGIES GMBH · DE

Inventors

• Christian Römer · Konstanz, DE
• Christian Kirschner · Wurmannsquick, DE

Key dates

• Filing date: Apr 9, 2020
• Grant date: Jun 14, 2022
• Expiry date: Apr 9, 2040

Classification

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

Abstract

A valve flap device for opening and closing a bypass valve of a turbocharger is provided. The valve flap device includes a valve spindle, a flap support arranged on the valve spindle and having a through aperture, a cover disk in the form of a circular ring, and a valve flap arranged on a support lower side of the flap support on the support lower side. The valve flap includes a flap plate and a flap support pin arranged on the flap plate rear side and is passed through the through aperture of the flap support and is firmly connected to the cover disk. A spring element is installed in the spring gap under a preload. A centering device, provided on the support upper side, is arranged concentrically with the central axis of the through aperture and keeps the spring element in a centered position relative to the central axis.