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 respective flap is a trough-shaped flap having a curved stirrup region and a shell region projecting therefrom, wherein the respective stirrup region has two stirrup ends spaced apart from each other and arranged coaxially with respect to the flap pivot axis, wherein the respective flap is arranged between the stirrup ends eccentrically with respect to the flap pivot axis, wherein the flap arrangement has a common actuating shaft for the common pivoting of the flaps about the flap pivot axis, wherein the actuating shaft has a projection for each flap, wherein the respective flap is arranged with its stirrup region along the associated projection on the actuating shaft, wherein the actuating shaft is coupled with an adjusting drive via a lever element, and wherein the lever element has a metallic insert and a plastic body injected onto the insert.