US4659289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine side plate assembly
Assignee: RTX Corp
•
Filing: 1984-07-23
•
Granted: 1987-04-21
•
Expires: 2004-07-23
Abstract
Abstract The sole support for the rear disk rim side plate of the 1st turbine stage is the seal extending between the 1st and 2nd stage turbines. The fir tree broach on the side plate fits into the broached rim of the turbine disk which is extended axially to radially restrain each side plate. This configuration eliminates the heretofore used bolts and nuts or rivets.
Inventors
- 👤 Robert R. Kalogeros
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 22:47
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/30; F01D5/3007; F01D5/3015; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
184 words
A pair of axially spaced turbine rotors for a gas turbine power plant, each of said turbine rotors comprising a disk and a plurality of tubine blades circumferentially supported in recesses formed on the outer diameter of said disk and the recesses having side edges, each of said turbine rotors having a front face and a rear face, a plurality of circumferentially spaced side plates mounted on the rear face of one of said turbine rotors contiguous with said disk and each of said blades at the side edge of said recesses to form an axial seal at the junction where said blades are attached to said disk, sealing means including a rigid annular support member extending between said rear face of one of said pair of turbine rotors and a front face of the other of said pair of turbine rotors and said annular support member bearing against the front surface of each of said side plates for axially supporting each of said side plates, said rigid annular support member being the sole means for securing said plurality of side plates in position.
Claim 2
Dependent Claim
184 words
A pair of axially spaced turbine rotors for a gas turbine power plant, each of said turbine rotors comprising a disk and a plurality of tubine blades circumferentially supported in recesses formed on the outer diameter of said disk and the recesses having side edges, each of said turbine rotors having a front face and a rear face, a plurality of circumferentially spaced side plates mounted on the rear face of one of said turbine rotors contiguous with said disk and each of said blades at the side edge of said recesses to form an axial seal at the junction where said blades are attached to said disk, sealing means including a rigid annular support member extending between said rear face of one of said pair of turbine rotors and a front face of the other of said pair of turbine rotors and said annular support member bearing against the front surface of each of said side plates for axially supporting each of said side plates, said rigid annular support member being the sole means for securing said plurality of side plates in position.
Claim 3
Dependent Claim
64 words
For a gas turbine power plant as in claim 1 wherein said recess is a fir tree shaped receptacle, each of said blades at their roots being complementary shaped in a fir tree dimension to fit into said recess, and each of said circumferentially spaced side plates having a complementary fir tree shaped portion fitting into said recess adjacent said roots of said blades.
Claim 4
Dependent Claim
29 words
For a gas turbine power plant as in claim 2 wherein said disk extends laterally with respect to the circumferentially side spaced plates to restrain said side plates radially.
References Cited (Backward Citations)
US2452782A
Cited
US2656147A
Cited
GB790029A
Cited
US2996280A
Cited
US3094309A
Cited
GB988541A
Cited
US3137478A
Cited
US3295825A
Cited
US3575522A
Cited
US3801220A
Cited
US3733146A
Cited
US3842595A
Cited
US3836279A
Cited
US4035102A
Cited
DE2555911A1
Cited
GB1546783A
Cited
US4127359A
Cited
US4171930A
Cited
US4192633A
Cited
US4484858A
Cited
US4470757A
Cited
US4466239A
Cited
US4507052A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-04-20 | 1990-10-20 | 1991-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-20 | 1994-10-20 | 1995-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-20 | 1998-10-20 | 1999-04-21 | $7700.00 | Window Closed / Lapsed |