US3603143A
Expired / Lapsed
US
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Apparatus for testing the vane anchorage of turbine vanes
Assignee: Licentia Patent Verwaltungs GmbH
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Filing: 1969-06-26
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Granted: 1971-09-07
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Expires: 1989-06-26
Abstract
Abstract Testing apparatus for determining tightness, deformations and weak points of the vane anchorage of a turbine vane. The apparatus operates by applying forces to a vane, which includes a vane base, attached in the normal fashion to a simulated portion of a turbine rotor. A force in a direction corresponding to the radial direction in a turbine rotor and hence to the direction of centrifugal force in a rotating rotor is applied by attaching the vane and rotor portion to respective first and second yokes separated by resilient elements and drawing the vane and rotor portions apart. A force in a direction corresponding to the axial and/or tangential directions of a turbine rotor and hence the direction of the forces of the driving fluid which act on the vanes during operation of a turbine is applied by an additional device while the vane and rotor portions are held in the yokes.
Inventors
- 👤 Klaus Detert
- 👤 Hans-Jochen Lipp
- 👤 Erich Winschuh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:30
CPC Classifications
G; G01; G01M; G01M13/00; F; F01; F01D; F01D5/00; F01D5/30
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
214 words
Testing apparatus for determining tightness, deformations and weak points of the vane anchorage of turbine vanes comprising, in combination: a. means simulating a portion of a turbine rotor; b. vane means, comprising at least a portion of a turbine vane and a vane base, attached to said rotor portion; c. a first yoke; d. a second yoke connected to said first yoke; e. resilient element means for resiliently supporting said first yoke with respect to said second yoke, said first and second yokes and said resilient means forming a frame for supporting said vane means; f. first means for attaching said first yoke to said vane means; g. second means for attaching said second yoke to said simulated rotor portion, said second means including means for applying a force to said simulated rotor portion corresponding to the radial direction of a rotor and hence to the direction of the centrifugal force in a rotating rotor; and h. means for applying a force directly to said vane means in at least one direction transverse to tHe force applied by said second attaching means corresponding to the axial and/or tangential directions of a rotor and hence to the direction of the forces of a driving fluid which act on a vane during operation of a turbine.
Claim 2
Dependent Claim
214 words
Testing apparatus for determining tightness, deformations and weak points of the vane anchorage of turbine vanes comprising, in combination: a. means simulating a portion of a turbine rotor; b. vane means, comprising at least a portion of a turbine vane and a vane base, attached to said rotor portion; c. a first yoke; d. a second yoke connected to said first yoke; e. resilient element means for resiliently supporting said first yoke with respect to said second yoke, said first and second yokes and said resilient means forming a frame for supporting said vane means; f. first means for attaching said first yoke to said vane means; g. second means for attaching said second yoke to said simulated rotor portion, said second means including means for applying a force to said simulated rotor portion corresponding to the radial direction of a rotor and hence to the direction of the centrifugal force in a rotating rotor; and h. means for applying a force directly to said vane means in at least one direction transverse to tHe force applied by said second attaching means corresponding to the axial and/or tangential directions of a rotor and hence to the direction of the forces of a driving fluid which act on a vane during operation of a turbine.
Claim 3
Dependent Claim
28 words
The apparatus defined in claim 1, wherein said means for applying a force to said vane means in said transverse direction includes means for periodically varying the force.
Claim 4
Dependent Claim
22 words
The apparatus defined in claim 2, further comprising means for heating the joint between said simulated rotor portion and said vane means.
Claim 5
Dependent Claim
38 words
The apparatus defined in claim 3, further comprising light-optical measuring means for measuring relative motion between said vane base and said simulated rotor portion during the application of forces to said vane means and said simulated rotor portion.
Claim 6
Dependent Claim
36 words
The apparatus defined in claim 4, further comprising measuring means for measuring deformations in said vane means and said simulated rotor portion during the application of forces to said vane means and said simulated rotor portion.
Claim 7
Dependent Claim
16 words
The apparatus defined in claim 1, wherein said radial force applying means is a hydraulic device.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |