Secondary air induction system
AssigneeMann+Hummel GmbH
InventorKarl-Ernst Hummel
Life of this patent
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Abstract
A secondary air induction system (1) for an internal combustion engine of a motor vehicle, including a turbine (2) and a compressor (3), in which a turbine wheel (4) of the turbine (2) and a compressor wheel (5) of the compressor (3) are mounted on a rotatable common shaft (6) supported by a bearing assembly (8) including at least one roller bearing (17) inside a turbocharger housing (7). An insulating or noise damping material (9) externally encloses at least a portion of the housing (7) to provide sound insulation in the area of the bearing assembly (8).
Claims11
A secondary air turbocharger for an internal combustion engine of a motor vehicle, said turbocharger comprising a turbine and a compressor, wherein a turbine wheel of the turbine and a compressor wheel of the compressor are mounted on a rotatable common shaft supported by a bearing assembly inside a turbocharger housing;
- said bearing assembly comprising at least one roller bearing, and at least a portion of the housing being enclosed externally in the area of the bearing assembly by a sound absorbing insulating material.
A secondary air turbocharger according to claim 9, wherein the shell is provided as a mold into which a synthetic resin foam is injected.
Dependencies are inferred from the claim text.