Drum rotor for an impulse steam turbine having blades mounted in longitudinal grooves, and an impulse steam turbine including such a motor
US5308227A · kind A · utility
14Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 7, 1993 |
| Grant date | May 3, 1994 |
| Priority date | — |
| Expiry date | Jan 7, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D11/122
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A drum rotor for an impulse steam turbine having moving wheels constituted by rotor blades whose roots are provided with dovetails are locked in dovetail shaped grooves formed in the rotor. The grooves are longitudinal over at least a portion of the rotor. The roots of the blades of a moving wheel are separated from the roots of the blades of an adjacent moving wheel by dovetail shaped spacers. An optimum filling of the longitudinal grooves is effected for better interconnection of the caps of the rotor blades.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.