Exhaust butterfly system

US5632304A · kind A · utility

Assignee

• Mercedes-Benz Group AG · DE

Inventors

• Karl-Heinz Kempka · Eßlingen, DE
• Dietmar Froese · Landau, DE
• Georg Reuther · Hochstädt, DE
• Christian Kroeger · Neustadt, DE
• Harald Bressler · Wassertrüdingen, DE

Key dates

• Filing date: Jul 24, 1995
• Grant date: May 27, 1997
• Expiry date: Jul 24, 2015

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/87161
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An exhaust butterfly in an exhaust conduit of an internal combustion engine is supported by way of bearing journals by positive plug-in connections. To simplify installation, the bearing journals and the bearing sleeves are designed in such a way that, to install the exhaust butterfly, the bearing journals are each pressed completely into the respective bearing sleeves counter to the force of a spring. In the case of a multiflow exhaust line, between adjacent exhaust lines cylindrical transverse passages are provided in each of which a driver is rotatably mounted. At one end, the driver has a recess which is designed as a bearing sleeve and into which the bearing journal of the first exhaust butterfly is inserted to produce a driving connection. The other end of the driver is designed as a bearing journal which is likewise inserted into a recess in the second exhaust butterfly to produce a driving connection.