Throttle arrangement and exhaust system equipped with same

US7805933B2 · kind B2 · utility

Assignee

• J. Eberspaecher GmbH & Co. KG · DE

Inventors

• Robert Hanitzsch · Weingarten, DE
• Bjoern Damson · Stuttgart, DE

Key dates

• Filing date: Feb 21, 2007
• Grant date: Oct 5, 2010
• Expiry date: Aug 6, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/7898
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a throttle arrangement for an exhaust system of an internal combustion engine having a throttle valve for throttling a stream of exhaust gas flowing through a pipe and having a restoring spring which prestresses the throttle valve into a closed position. The throttle valve is pivotable about a pivot axis in the pipe between the closed position [and the open position] and the restoring spring is supported on the valve end on a lever fixedly connected to the throttle valve and is supported at the pipe end on a bearing for accommodating a shaft extending coaxially with the pivot axis. The restoring spring is adapted to support the spring forces on the pipe end in an essentially symmetrical manner with respect to a plane of symmetry that extends perpendicular to the pivot axis and is in the area of the support on the valve end.