Flap device for an internal combustion engine

US9518514B2 · kind B2 · utility

Assignee

• PIERBURG GMBH · DE

Inventor

• Markus Evers · Konstanz, DE

Key dates

• Filing date: Nov 12, 2013
• Grant date: Dec 13, 2016
• Expiry date: Nov 12, 2033

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16K1/2268
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A flap device for an internal combustion engine includes a flow housing comprising a flow channel, a bore arranged in the flow housing, an actuating shaft which protrudes outwards through the bore, a flap body arranged on the actuating shaft, a first bearing bush, and a sealing element radially surrounding the actuating shaft. The first bearing bush is arranged in the bore and has the actuating shaft mounted therein. An axial end of the first bearing bush protrudes beyond an end of the bore. The sealing element comprises at least one plate spring arranged between a first disc and a second disc. The first disc is secured on the actuating shaft and supports the at least one plate spring. The at least one plate spring rests against the second disc so that the second disc rests against the axial end of the first bearing bush which protrudes beyond the bore.