Clamping flange arrangement for connecting an exhaust system to an internal combustion engine

US8201400B2 · kind B2 · utility

Assignee

• AUDI AG · DE

Inventor

• Xaver Stemmer · Reichertshofen, DE

Key dates

• Filing date: Jan 15, 2008
• Grant date: Jun 19, 2012
• Expiry date: Jun 20, 2029

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01N2450/24
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

A connection of an exhaust manifold section to an opening of an internal combustion engine block generally consisting of an end portion of the exhaust manifold received in a recess of the engine block opening in engageable and sealing relation with a surface thereof, and portions received in diametrically opposed undercuts of the recess; a threaded bolt having an axis disposed in a plane of and at an acute angle to a centerline of the exhaust manifold section, and an end portion engaging the exhaust manifold section; a bearing element in which the bolt is threaded having an arcuate surface disposed radially relative to an axis disposed at a right angle to the axis of the bolt and a section of the engine block having a recess in which the bearing element is disposed, having an arcuate bearing surface engaged by the arcuate surface of the bearing element.