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US 2019/0153889 A1Published application
Systems and methods for a variable geometry turbine nozzle actuation
AssigneeFord Global Technologies, LLC
InventorsLeon Hu, Dengfeng Yang, Ben Zhao, Jianwen James Yi
Life of this patent
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Abstract
Methods and system are provided for a turbine nozzle adapted with variable geometry guide vanes. In one example, a turbine nozzle may include sliding and fixed vanes arranged between supporting plates. The sliding vanes are engaged by an actuating plate that adjusts a position of the sliding vanes to regulate gas flow to the turbine.
Claims20
A turbine nozzle comprising:
- fixed vanes;
- first and second support plates fixed to opposite ends of the fixed vanes, throughslot guide slots in the first support plate, and blind guide slots in the second support plate;
- sliding vanes each positioned for sliding engagement with the respective fixed vanes, each having guide tongues on opposite ends thereof including a first guide tongue for sliding engagement within respective throughslot guide slots and a second guide tongue for sliding engagement within respective blind guide slots;
- an actuation plate disposed adjacent, and configured for movement relative to, the first support plate, and having blind actuation slots that extend in directions different from directions of the guide slots and that cross over the guide slots at movable intersecting points as viewed in a direction normal to the actuation plate;
- and
- the first guide tongues each including an actuating pin extending into respective actuation slots at the intersecting points and movable upon movement of the actuation plate relative to the support plates.
3 more elements
A method of adjusting a variable geometry turbine (VGT) comprising:
- fixing a number of fixed vanes between first and second support plates;
- positioning the same number of sliding vanes for sliding engagement with each respective fixed vane;
- positioning a first tongue extending from each sliding vane through respective guide slots defined through the first support plate;
- arranging an actuation plate having blind actuation slots defined therein adjacent the first support plate for movement relative thereto and covering the guide slots of the first support plate therewith;
- positioning a pin extending from each sliding vane through respective actuation slots formed in the actuation plate at respective intersection points, the intersection points defined as locations wherein the actuation slots cross the guide slots;
- and
- rotating the actuation plate and causing actuation slots to rotate about a center line, and causing the intersecting points to move along a path defined by the guide slots and providing a force on the pin and effecting a sliding of each sliding vane relative to each respective fixed vane.
4 more elements
A turbine nozzle comprising:
- a first support plate having a first guide slot passing therethrough, the first guide slot extending in a first direction;
- a second support plate substantially parallel with and fixed to the first support plate with a fixed vane;
- an actuating plate adjacent the first support plate and having a blind actuating slot formed therein, the actuating slot extending in a second direction forming an angle with first guide slot, the first guide slot and the actuating slot crossing at a movable intersecting point as viewed in a direction normal to the actuating plate, the movement thereof effected by a relative movement between the actuating plate and first support plate;
- and
- a sliding vane between the first and second support plates in sliding engagement with the fixed vane and having a protrusion with a first first tongue and a pin, the first tongue extending through the first guide slot for sliding engagement therein, and the pin extending into the actuating slot at the movable intersection point and movable with the intersection point in accordance with the respective relative movement between the actuating plate and first support plate.
2 more elements
Dependencies are inferred from the claim text.