Compressor arrangement for an internal combustion engine and method for operating a compressor arrangement
AssigneeAudi AG
InventorsMaximilian KÖHNLEIN, Robert SOLBECK
Life of this patent
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Abstract
A compressor arrangement for an internal combustion engine, having a compressor which is arranged in a compressor housing and has a low pressure side and a high pressure side, and having a negative pressure provision unit, which has a propellant channel that is fluidically connected, on the one hand, via a propellant inlet fitting to the high pressure side of the compressor and, on the other hand, via a propellant outlet fitting to the low pressure side of the compressor and has a nozzle, and which has a negative pressure channel opening into the propellant channel fluidically between the propellant inlet fitting and the propellant outlet fitting.
Claims21
1-9. (canceled)
A compressor arrangement for an internal combustion engine, comprising:
- a compressor which is arranged in a compressor housing and has a low pressure side and a high pressure side, and having a negative pressure provision unit, which has a propellant channel that is fluidically connected, on the one hand via a propellant inlet fitting to the high pressure side of the compressor and, on the other hand, via a propellant outlet fitting to the low pressure side of the compressor and has a nozzle, and which has a negative pressure channel opening into the propellant channel fluidically between the propellant inlet fitting and the propellant outlet fitting, wherein the propellant channel is formed in a housing separate from the compressor housing, on which the propellant inlet fitting and/or the propellant outlet fitting is/are formed as plug fittings,
- wherein the propellant inlet fitting can be brought into fluidic connection with a first fitting and the propellant outlet fitting can be brought into fluidic connection with a second fitting, wherein the first fitting and the second fitting are formed on the compressor housing or on a flow guiding element connected to the compressor housing.
A method for operating a compressor arrangement for an internal combustion engine, comprising:
- compressor arrangement, wherein the compressor arrangement has a compressor, which is arranged in a compressor housing and has a low pressure side and a high pressure side, and a negative pressure provision unit, which has a propellant channel that is fluidically connected, on the one hand, via a propellant inlet fitting to the high pressure side of the compressor and, on the other hand, via a propellant outlet fitting to the low pressure side of the compressor and has a nozzle, and which has a negative pressure channel opening into the propellant channel fluidically between the propellant inlet fitting and the propellant outlet fitting, wherein the propellant channel is formed in a housing separate from the compressor housing, on which the propellant inlet fitting and/or the propellant outlet fitting is/are formed as plug fittings wherein the propellant inlet fitting can be brought into fluidic connection with a first fitting and the propellant outlet fitting can be brought into fluidic connection with a second fitting, wherein the first fitting and the second fitting are formed on the compressor housing or on a flow guiding element connected to the compressor housing, and wherein a pressure in the negative pressure channel or on the high pressure side of the compressor is measured by means of a pressure sensor and if the pressure falls below or exceeds a limiting value, a leak is detected.
Dependencies are inferred from the claim text.