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US 11,143,321 B2Granted
Fluidic valve unit and method for operating a fluidic valve unit
AssigneeAudi AG
InventorsSebastian Wawersig, Thomas Hoffmann
Life of this patent
Estimating the term…
Abstract
A fluidic valve unit having a plurality of rotary slide valves arranged in series and a servo motor for setting the rotary slide valves, wherein each of the rotary slide valves comprises a rotary slide arranged in a rotary slide housing and drivable via a driveshaft by means of the servo motor. It is provided in this case that each two successive ones of the rotary slide valves are mechanically connected to one another via a driver device for the setting by means of the servo motor, wherein the driver device comprises a driver projection arranged on a first of the two rotary slide valves.
Claims11
A fluidic valve unit, comprising:
- a plurality of rotary slide valves arranged in series and a servo motor for setting the rotary slide valves,
- wherein each of the rotary slide valves comprises a rotary slide arranged in a rotary slide housing and are drivable via a driveshaft by means of the servo motor,
- wherein each two successive ones of the rotary slide valves are mechanically connected to one another via a driver device for setting by means of the servo motor,
- wherein the driver device comprises a first driver projection and a second driver projection arranged on a first of the two successive rotary slide valves, which correspondingly and respectively engage with play in a rotational direction in a first driver receptacle and a second driver receptacle formed on a second of the two successive rotary slide valves,
- wherein one of the two successive rotary slide valves is only drivable indirectly by the servo motor via a respective other of the two successive rotary slide valves,
- wherein the first driver projection and the first driver receptacle together comprise a first driver unit, and the second driver projection and the second driver receptacle together comprise a second driver unit,
- wherein the first driver unit and the second driver unit are arranged at different radii of the driver device such that neither the first driver unit nor the second driver unit overlap radially with one another, and
- wherein the first and second driver projections each comprise a curved contact surface and the first and second driver receptacles each comprise a complementary contact surface which respectively matches the curved contact surface, such that when the first and second driver projections each respectively engage with the first and second driver receptacles, continuous curved contact surfaces result between the curved contact surface of the first driver projection and the complementary contact surface of the first driver receptacle and between the curved contact surface of the second driver projection and the complementary contact surface of the second driver receptacle.
5 more elements
A method for operating a fluidic valve unit having a plurality of rotary slide valves arranged in series and a servo motor for setting the rotary slide valves, comprising,
- setting each of the rotary slide valves to a desired position which results in a desired flow rate of the fluidic valve unit,
- wherein each of the rotary slide valves comprises a rotary slide arranged in a rotary slide housing and are drivable via a driveshaft by means of the servo motor,
- wherein each two successive ones of the rotary slide valves are mechanically connected to one another via a driver device for setting by means of the servo motor,
- wherein the driver device comprises a first driver projection and a second driver projection arranged on a first of the two successive rotary slide valves, which correspondingly and respectively engage with play in a rotational direction in a first driver receptacle and a second driver receptacle formed on a second of the two successive rotary slide valves,
- wherein one of the two successive rotary slide valves is only driven indirectly by the servo motor via a respective other of the two successive rotary slide valves,
- wherein the first driver projection and the first driver receptacle together comprise a first driver unit, and the second driver projection and the second driver receptacle together comprise a second driver unit,
- wherein the first driver unit and the second driver unit are arranged at different radii of the driver device such that neither the first driver unit nor the second driver unit overlap radially with one another, and
- wherein the first and second driver projections each comprise a curved contact surface and the first and second driver receptacles each comprise a complementary contact surface which respectively matches the curved contact surface, such that when the first and second driver projections each respectively engage with the first and second driver receptacles, continuous curved contact surfaces result between the curved contact surface of the first driver projection and the complementary contact surface of the first driver receptacle and between the curved contact surface of the second driver projection and the complementary contact surface of the second driver receptacle.
5 more elements
Dependencies are inferred from the claim text.