US Patent No: 8,226,365
Number of patents in Portfolio can not be more than 2000
Systems, methods, and apparatus for thermally isolating a turbine rotor wheel
Stats
-
Jul 24, 2012
Issued date -
Apr 22, 2009
filing date -
12/428,067
serial no -
In Force
status
Importance
Loading Importance Indicators...
Abstract
Embodiments of the invention can provide systems, methods, and an apparatus for thermally isolating a turbine rotor wheel. According to one embodiment, a method for thermally isolating a turbine rotor wheel can be provided. The turbine rotor wheel can include a pair of blade posts, or shanks, supporting respective turbine rotor blades such that a shank cavity is formed between respective blade posts. To thermally isolate the turbine rotor wheel, at least one seal operable to partition the shank cavity into an upper region and a lower region can be provided. In addition, this seal can be inserted within the shank cavity to partition the shank cavity into an upper region and a lower region. In doing so, cooling air flow can be divided between the upper region and the lower region so that the lower region can be maintained at a lower temperature than the upper region.
Loading the Abstract Image...
First Claim
Related Publications
Loading Related Publications...
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
|
|
|||
| 5,201,849 Turbine rotor seal body | 12 | 1990 | |
| 5,388,962 Turbine rotor disk post cooling system | 22 | 1993 | |
| 5,630,703 Rotor disk post cooling system | 22 | 1995 | |
| 6,341,939 Tandem cooling turbine blade | 19 | 2000 | |
| 6,416,284 Turbine blade for gas turbine engine and method of cooling same | 23 | 2000 | |
| 6,776,583 Turbine bucket damper pin | 9 | 2003 | |
| 7,189,063 Methods and apparatus for cooling gas turbine engine rotor assemblies | 1 | 2004 | |
|
|
|||
| 6,638,013 Thermally isolated housing in gas turbine engine | 2 | 2002 | |
|
|
|||
| 2005/0201,857 Mounting arrangement for turbine blades | 3 | 2005 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Jan 24, 2016 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jan 24, 2020 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 24, 2024 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |