Blade channel having an end wall contour and a turbomachine
AssigneeMTU Aero Engines AG
InventorsInga Mahle, Michaela Niebler
Life of this patent
Estimating the term…
Abstract
A blade channel having a not-axially-symmetric end wall contour in a turbomachine is disclosed, the end wall contour having at least one individual contour in the form of an elevation, on the pressure side, and at least three individual contours in the form of two recesses and one elevation, on the suction side, the elevation being situated between the recesses in the flow direction; a turbomachine having a plurality of blade channels of this type is also disclosed.
Claims13
A blade channel having an end wall contour in a turbomachine comprising:
- a pressure-side wall of a first blade;
- an opposite suction-side wall of an adjoining second blade in a circumferential direction;
- and
- two opposite boundary walls in a radial direction, the pressure side-wall, the suction side wall and the two opposite boundary walls delimiting a channel,
- at least one of the boundary walls having at least one pressure-side elevation in an area of the pressure-side blade wall,
- the at least one boundary wall having at least two suction-side recesses and at least one suction-side elevation in an area of the suction-side blade wall, the suction-side elevation being situated between the at least two suction-side recesses, viewed in a flow direction.
A turbomachine comprising at least one blade cascade having a plurality of blade channels, each blade channel of the plurality of the blade channels comprising:
- a pressure-side wall of a first blade;
- an opposite suction-side wall of an adjoining second blade in a circumferential direction;
- and
- two opposite boundary walls in a radial direction, the pressure side-wall, the suction side wall and the two opposite boundary walls delimiting a channel,
- at least one of the boundary walls having at least one pressure-side elevation in an area of the pressure-side blade wall,
- the at least one boundary wall having at least two suction-side recesses and at least one suction-side elevation in an area of the suction-side blade wall, the suction-side elevation being situated between the at least two suction-side recesses, viewed in a flow direction.
Dependencies are inferred from the claim text.