Throttle arrangement and exhaust system equipped with same

Details Throttle arrangement and exhaust system equipped with same Throttle arrangement and exhaust system equipped with same

2007-02-21

2010-10-05

Denion, Thomas E (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

Divider, collector, valve means, or boundary layer device...

C137S527000, C251S303000

Reexamination Certificate

active

07805933

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.

REFERENCES:
patent: 1330265 (1920-02-01), Hinton
patent: 6176347 (2001-01-01), Chae et al.
patent: 0622538 (1994-11-01), None
patent: 0657317 (1995-06-01), None
patent: 2588806 (1987-04-01), None
patent: WO 99/63184 (1999-12-01), None
European Search Report dated May 24, 2007 for related EP Application No. EP 07 10 2347.

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