Flap device and intake system

摘要

A valve device for an intake system of an internal combustion engine may include a housing and a flap arrangement. The housing may have one inlet duct per cylinder of the internal combustion engine. The flap arrangement may have a flap for each inlet duct for varying the cross-section of the respective inlet duct through which a flow can pass. The respective flap may be a trough-shaped flap having a curved stirrup region. The respective flap may be arranged between the stirrup ends eccentrically with respect to a flap pivot axis. The flap arrangement may have a common actuating shaft for the common pivoting of the flaps about the flap pivot axis. The actuating shaft may be coupled with an adjusting drive via a lever element having a metallic insert and a plastic body injected onto the insert.

主权项

1. A valve device for an intake system of an internal combustion engine, comprising:
a housing having one inlet duct per cylinder of the internal combustion engine, a flap arrangement having a flap for each inlet duct for varying the cross-section of the respective inlet duct through which a flow can pass, wherein: the flap arrangement has for all flaps a common actuating shaft for the common pivoting of the flaps about a flap pivot axis, the actuating shaft carries a magnet carrier in a torque-proof manner, which in turn carries a permanent magnet which cooperates with a rotation angle sensor for detection of the rotation position of the flap arrangement, the housing has a wall aperture between the permanent magnet and the rotation angle sensor such that no sealing separation exists between the permanent magnet and the rotation angle sensor.