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US 10,648,403 B2Granted
Turbocharger for a motor vehicle
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorsStefan Ehrmann, Hans-Peter Jelinek
Life of this patent
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Abstract
In order for charge air to be conducted with the lowest possible losses in pressure in a turbocharger including a blow-off valve, a flow-guiding element in an inlet region is designed such that neutral zones are formed at the flow openings. The flow openings recirculate charge air from the pressure side to the suction side when the blow-off valve is opened. The flow-guiding element avoids vortices and therefore losses in pressure in the region of the flow openings.
Claims18
A turbocharger for a motor vehicle, comprising:
- a compressor;
- a suction duct for charge air to be compressed, the charge air during operation flowing in a flow direction to the compressor, wherein an inlet region of the suction duct is connected to the compressor;
- a pressure duct configured to receive the charge air compressed by the compressor;
- a bypass duct configured to connect the suction duct to the pressure duct via at least one flow opening provided on a circumference in the inlet region;
- an overrun air recirculation valve for controlled opening and closure of the bypass duct;
- and
- a flow-guiding element upstream in the flow direction of the at least one flow opening, the flow-guiding element being configured such that an area of reduced pressure relative to a pressure at the flow-guiding element forms at the flow opening.
4 more elements
Dependencies are inferred from the claim text.