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US 6,279,528 B1Granted
Intake device
AssigneeSiemens Aktiengesellschaft
InventorsWerner Happenhofer, Mathias Scheytt, Stefan Schmidt, Helmut Schwaiger
Life of this patent
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Abstract
Inlet pipes extend from a collector to the cylinder inlets of the internal combustion engine. The inlet pipes are formed with mutually facing openings in their adjacent walls. Control flaps each have a shaft, which is respectively provided with a damping element and is mounted by way of the damping elements in a bearing bush. The openings in the inlet pipes are selectively closed and opened with the control flaps.
Claims6
An intake device for an internal combustion engine with a plurality of cylinders having inlets, comprising:
- a collector taking in ambient air via an intake connection;
- a plurality of inlet pipes extending from said collector to respective inlets of the cylinders of the internal combustion engine, said inlet pipes being closely adjacent one another in a portion between said collector and the cylinders and being formed with mutually facing openings in mutually facing walls;
- a controlled control flap formed with a shaft and being pivotally disposed to selectively close said facing openings;
- and
- a bearing bush supporting said shaft and a separate, annular damping element inserted in said bearing bush and disposed on said shaft.
2 more elements
Dependencies are inferred from the claim text.