Fluid reaction surfaces (i.e. – impellers) – Specific working member mount – Blade received in well or slot
Patent
1988-02-22
1989-04-11
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
Specific working member mount
Blade received in well or slot
416213R, F01D 530
Patent
active
048201260
ABSTRACT:
A method and apparatus for reducing stress concentrations in a turbomachine rotor assembly are disclosed. A layer of superplastic metal is applied to a bearing surface formed on the turbine blade root. After assembly of the turbine blade to the rotor disk, the blade is pre-loaded to bring the superplastic metal layer into contact with adjoining bearing surfaces formed in the rotor disk groove. The superplastic metal material is capable of plastically deforming at least 500% thereby conforming to substantially all of the variations between the bearing surface formed on the blade root and the corresponding bearing surface formed on the rotor disk groove. By maximizing the contact area between the bearing surfaces, the stress concentrations are reduced.
REFERENCES:
patent: 1793468 (1929-05-01), Densmore
patent: 2255486 (1941-09-01), Doran
patent: 2317338 (1943-04-01), Rydmark
patent: 2429215 (1947-10-01), Boestad
patent: 2781998 (1957-02-01), Barr
patent: 3045968 (1962-07-01), Willis
patent: 3317988 (1967-05-01), Endres
patent: 3784320 (1974-01-01), Rossmann et al.
patent: 3809495 (1974-05-01), Stahl
patent: 3904317 (1975-09-01), Cardin et al.
patent: 3910719 (1975-10-01), Hessler et al.
patent: 4169694 (1979-10-01), Sanday
patent: 4207029 (1980-06-01), Ivanko
patent: 4323394 (1982-04-01), Hoffmuller et al.
patent: 4417854 (1983-11-01), Cain et al.
patent: 4613388 (1986-09-01), Walter et al.
Powell Jr. Everette A.
Westinghouse Electric Corp.
LandOfFree
Turbomachine rotor assembly having reduced stress concentrations does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Turbomachine rotor assembly having reduced stress concentrations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Turbomachine rotor assembly having reduced stress concentrations will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-663195