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US 10,704,458 B2Granted
Methods and systems for a turbocharger
AssigneeFord Global Technologies, LLC
InventorsGuenter Grosch, Andreas Kuske, Franz A. Sommerhoff, Rainer Lach
Life of this patent
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Abstract
Methods and systems are provided for a compressor of an exhaust-gas turbocharger. In one example, a system may include where a housing of the compressor comprises two outlets, a first outlet shaped to direct compressed air to an electrically driveable compressor and a second outlet shaped to bypass compressed air around the electrically driveable compressor.
Claims20
A supercharged internal combustion engine comprising:
- an intake system shaped to supply charge air;
- an exhaust-gas discharge system shaped to discharge exhaust gas;
- at least one exhaust-gas turbocharger which comprises a turbine arranged in the exhaust-gas discharge system and a compressor arranged in the intake system, the compressor being equipped with at least one impeller which is arranged on a rotatable shaft in a compressor housing, the compressor housing having a charge-air-conducting flow duct which extends from an inlet region of the compressor and extends downstream of the at least one impeller;
- and
- an electrically driveable compressor, which is arranged in the intake system downstream of the compressor of the at least one exhaust-gas turbocharger, wherein the compressor housing has at least two outlets, the charge-air-conducting flow duct splitting downstream of the at least one impeller into at least two arm-like duct branches, where at least one shut-off element is arranged at a junction of the at least two arm-like duct branches including a first arm-like duct fluidly coupled to a first outlet and a second arm-like duct fluidly coupled to a second outlet, the first outlet directing compressed air from the compressor of the at least one exhaust-gas turbocharger to the electrically driveable compressor and the second outlet to a bypass passage bypassing the electrically drivable compressor, wherein the at least one shut-off element is adjustable via controller in a first mode to block only the compressed air to the electrically drivable compressor and in a second mode to block only the bypass passage.
2 more elements
A system comprising:
- a compressor of an exhaust-gas turbocharger comprising a compressor housing having a plurality of outlets including a first outlet and a second outlet, and where at least one shut off-element is arranged at a junction of a first duct leading to the first outlet and a second duct leading to the second outlet, wherein the first outlet directs compressed air from the compressor to an electrically driveable compressor and the second outlet directs compressed air through a bypass passage to bypass the electrically driveable compressor, wherein the at least one shut-off element is adjustable via controller in a first mode to block only the compressed air to the electrically drivable compressor and in a second mode to block only the bypass passage.
A method comprising:
- flowing charge-air to a compressor of an exhaust-gas turbocharger to provide an amount of boost in response to a boost demand;
- adjusting via controller a shut-off element arranged at a junction of a first duct and a second duct of a housing of the compressor to flow air compressed by the compressor through the first duct to a first outlet arranged in the housing and seal the second duct with the shut-off element in response to the amount of boost being less than an amount of boost demanded, wherein the first outlet directs the compressed air to a passage to an electrically driveable compressor;
- and
- adjusting via the controller the shut-off element to flow air compressed by the compressor through the second duct to a second outlet arranged in the housing and seal the first duct with the shut-off element in response to the amount of boost being equal to the amount of boost demanded, wherein the second outlet directs the compressed air to a bypass passage which bypasses the electrically driveable compressor.
1 more element
Dependencies are inferred from the claim text.