Labyrinthine turbine-rotor-blade tip seal
US4682933A · kind A · utility
22Cited by
9References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 14, 1986 |
| Grant date | Jul 28, 1987 |
| Priority date | — |
| Expiry date | May 14, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D5/20
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Means for sealing the tip 18 of a rotor turbine blade 10 against tip leakage flow comprising a multiplicity of recesses 30 formed in the surface of the tip 18. The recesses 30 are preferably formed in a labyrinthine or slaggered pattern which interposes at least one recess 30 in every leakage flow path across the tip 18 from the pressure side 26 to the suction side 28 of the blade 10.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.