Airflow device
AssigneeFilterwerk Mann & Hummel GmbH
InventorRolf Fuesser
Life of this patent
Estimating the term…
Abstract
An air flow device in which there are adjusters in the flow path to alter the flow geometry of the air. The total cross section of the flow path is divided into individual flow channels (15, 16, 17) or tube sections (1, 3, 4) one inside the other, and there are mechanisms or adjusters (13, 14) by which the flow paths in the individual flow channels (15, 16, 17; 1, 3, 4) can be controlled. In a preferred embodiment there are three flow channels (15, 16, 17) the ends of which are connected to an internal aperture (22 to 27) in the adjusters (13, 14).
Claims20
An air intake device defining an air intake flow path for a stream of air;
- said flow path having a length and a cross sectional area;
- wherein said intake device is divided into a plurality of parallel individual air flow channels;
- said intake device further comprising at least one adjusting element movable between a first position and a second position, said at least one adjusting element selectively blocking or admitting said stream of air to the individual air flow channels to effectively vary the cross sectional area of the air intake flow path;
- wherein said at least one adjusting element in said first position permits air to pass through said plurality of air flow channels simultaneously in the same direction and in said second position directs the air to pass successively in alternating directions through said plurality of flow channels.
An air intake device defining a flow path for aspirated air and comprising an outer tube section, a first inner tube disposed within said outer tube, and a second inner tube disposed within said first inner tube, whereby a first flow channel is defined between said outer tube and said first inner tube, a second flow channel is defined between said first inner tube and said second inner tube, and a third flow channel is defined inside said second inner tube, and means for selectively directing air flowing through said device to pass simultaneously through said first, second and third flow channels in the same direction or to pass sucessively in alternating directions through said first, second and third flow channels.
An air intake device defining an air intake flow path for a stream of air;
- said flow path having a length and a cross-sectional area;
- wherein said intake device is divided into a plurality of air flow channels;
- said intake device further comprising at least one adjusting element movable between a first position and a second position to effectively vary the length and cross-sectional area of the air intake flow path;
- wherein said at least one adjusting element in said first position permits air to pass through said plurality of air flow channels simultaneously in the same direction and in said second position directs the air to pass successively in alternating directions through said plurality of flow channels.
An air intake device defining an air intake flow oath for a stream of air;
- said flow path having a length and a cross sectional area;
- wherein said intake device is divided into a plurality of parallel individual air flow channels;
- said intake device further comprising at least one adjusting element movable between a first position and a second position, said at least one adjusting element selectively blocking or admitting said stream of air to the individual air flow channels to effectively vary the cross sectional area of the air intake flow path, wherein said air flow channels are defined by an outer tube section, a first inner tube disposed within said outer tube, and a second inner tube disposed within said first inner tube so that a first flow channel is defined between said outer tube and said first inner tube, a second flow channel is defined between said first inner tube and said second inner tube, and a third flow channel is defined inside said second inner tube, and wherein said at least one adjusting element comprises means for selectively directing air flowing through said device to pass simultaneously through said first, second and third flow channels in the same direction or to pass successively in alternating directions through said first, second and third flow channels.
Dependencies are inferred from the claim text.