Compressor with directly driven variable iris diaphragm, and charging device
AssigneeVitesco Technologies Germany GmbH
InventorsMathias Bogner, Hartmut Claus
Life of this patent
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Abstract
A compressor for a supercharging device of an internal combustion engine and a supercharging device are described. The compressor has an iris diaphragm mechanism that has a special drive. The drive includes an adjusting ring as an integral constituent part of an actuator of the drive and is formed as a rotor, which surrounds an air supply channel, of an electric motor. This results in a significantly simplified structural form of the drive.
Claims12
A compressor for a supercharging device of an internal combustion engine, the compressor comprising:
- a compressor wheel arranged rotationally conjointly on a rotor shaft;
- an air supply channel for conducting an air mass flow to the compressor wheel;
- an iris diaphragm mechanism comprising multiple lamellae, a rotatably mounted adjusting ring, and a multiplicity of permanent magnets disposed on the adjusting ring, the iris diaphragm mechanism arranged upstream of the compressor wheel and, adjustable by the adjusting ring, for closing and opening a diaphragm opening, such that variable setting of a flow cross section for the air mass flow for incident flow on the compressor wheel is possible;
- an actuator for rotating the adjusting ring;
- and
- a compressor housing;
- wherein the adjusting ring forms an integral constituent part of the actuator and is formed as a torque generating electric motor rotor which surrounds the air supply channel.
A supercharging device for an internal combustion engine, the supercharging device comprising:
- a compressor including:
- a compressor wheel arranged rotationally conjointly on a rotor shaft;
- an air supply channel for conducting an air mass flow to the compressor wheel;
- an iris diaphragm mechanism comprising multiple lamellae, a rotatably mounted adjusting ring, and a multiplicity of permanent magnets disposed on the adjusting ring, the iris diaphragm mechanism arranged upstream of the compressor wheel and adjustable by the adjusting ring, for closing and opening a diaphragm opening, such that variable setting of a flow cross section for the air mass flow for incident flow on the compressor wheel is possible;
- an actuator for rotating the adjusting ring;
- and a compressor housing;
- wherein the adjusting ring forms an integral constituent part of the actuator and is formed as a torque generating electric motor rotor which surrounds the air supply channel.
Dependencies are inferred from the claim text.