Title:
DRUM ROTOR DOVETAIL COMPONENT AND RELATED DRUM ROTOR SYSTEM
Document Type and Number:
Japanese Patent JP2014163386
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide systems and devices adapted to retain dovetail components (e.g., buckets) in a turbine drum rotor and reduce rotor component displacement.SOLUTION: A turbine bucket 200 includes a bucket base portion shaped to complement a bucket shank slot in a rotor of a turbine, the bucket base portion including: a forward portion shaped to extend upstream of a first stage circumferential slot of the rotor into a first rotor post 270 of the rotor; a circumferential protrusion 222 formed in an aft end of the bucket base portion and shaped to connect to the rotor; and a set of axial protrusions formed on tangential sides of the bucket base portion and shaped to connect to the rotor. The turbine bucket also includes a bucket platform 230 extending radially outboard from the bucket base portion, the bucket platform configured to complement a vane 232.
Inventors:
WILLETT JR FRED THOMAS
Application Number:
JP2014032400A
Publication Date:
September 08, 2014
Filing Date:
February 24, 2014
Export Citation:
Assignee:
GEN ELECTRIC
International Classes:
F01D5/30; F01D5/14; F01D11/02
Domestic Patent References:
| JP2011137455A | 2011-07-14 | |||
| JPH05248205A | 1993-09-24 | |||
| JP2011137450A | 2011-07-14 |
Foreign References:
| GB851306A | 1960-10-12 | |||
| US20110268561A1 | 2011-11-03 |
Attorney, Agent or Firm:
Satoshi Arakawa
Hiroshi Ogura
Toshihisa Kurokawa
Takuto Tanaka
Hiroshi Ogura
Toshihisa Kurokawa
Takuto Tanaka