Housing-side structure of a turbomachine
AssigneeMTU Aero Engines AG
InventorWilfried Weidmann
Life of this patent
Estimating the term…
Abstract
A housing-side structure of a turbomachine, in particular of a gas turbine, including an in particular segmented jacket ring (16), which carries an abradable lining for radially outer ends of rotor-side moving blades of a moving blade ring, wherein the jacket ring (16) carrying the abradable lining is connected by means of at least one constriction (18) to a stator-side housing part (19), which is radially adjacent to the jacket ring (16) on the outside and the jacket ring is thermally decoupled from said stator-side housing.
Claims18
A housing-side structure of a turbomachine comprising:
- a stator side housing part, a flange, and a jacket ring formed as a single piece;
- the jacket ring having an inner side and an outer side opposite the inner side, the inner side carrying an abradable lining;
- at least one constriction formed between the stator-side housing part and the jacket ring, the stator-side housing being opposite from and radially adjacent to the outer side of the jacket ring, the stator-side housing being thermally decoupled from the jacket ring via the at least one constriction, the flange being radially adjacent to the jacket ring;
- and
- a support fastened to the flange and in contact with a downstream end of the jacket ring for stabilizing the jacket ring, the support forming a seal with the downstream end of the jacket ring.
A turbomachine comprising:
- a stator having a housing, the stator having guide blades;
- the stator including a stator side housing part, a flange and a jacket ring formed as a single piece at least one constriction formed between the stator-side housing part and the jacket ring, the stator-side housing being opposite from and radially adjacent to the outer side of the jacket ring, the flange being radially adjacent to the jacket ring;
- a support fastened to the flange and in contact with a downstream end of the jacket ring for stabilizing the jacket ring, the support forming a seal with the downstream end of the jacket ring;
- and
- a rotor having moving blades forming at least one moving blade ring, the moving blade ring being radially adjacent to the jacket ring, and being surrounded by the jacket ring to define a clearance with the jacket ring, the jacket ring carrying an abradable lining, the abradable lining being opposite the radially outer ends of the rotor-side moving blades of the moving blade ring, the housing being thermally decoupled from the jacket ring via the at least one constriction.
A housing-side structure of a turbomachine comprising:
- a stator side housing part, a flange, and a jacket ring formed as a single piece;
- the jacket ring having an inner side and an outer side opposite the inner side, the inner side carrying an abradable lining;
- and
- a pair of constrictions formed between the stator-side housing part and the jacket ring, the stator-side housing being opposite from and radially adjacent to the outer side of the jacket ring, the stator-side housing being thermally decoupled from the jacket ring via the pair of constrictions, the pair of constrictions positioned off-center in relation to the jacket ring as viewed in the axial direction, the flange being radially adjacent to the jacket ring.
Dependencies are inferred from the claim text.