US3841788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for turning the stator vanes of turbo-machines
Assignee: Individual
•
Filing: 1972-11-09
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Granted: 1974-10-15
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Expires: 1992-11-09
Abstract
Abstract A device comprises a synchronizing ring which is installed with a possibility for turning with simultaneous axial displacement along the housing of a turbo-machine. This synchronizing ring is pivotally connected to levers and given a means for limiting its displacement in a plane perpendicular to its axis. Each lever is pivotally connected with one end to the synchronizing ring, whereas with the other end is rigidly secured to the journal of the vane. The means limiting the displacement of the synchronizing ring comprises rollers. Each roller is kinematically linked with the synchronizing ring and installed in the latter ring with a possibility for turning around the axis directed along the radius of the ring and passing approximately through the axis of the roller, each roller cooperating with the housing of a turbo-machine.
Inventors
- 👤 J Sljusarev
- 👤 B Reznik
- 👤 J Galperin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:49
CPC Classifications
F; F01; F01D; F01D17/00; F01D17/10; F01D17/12; F01D17/14; F01D17/16; F01D17/162
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
184 words
A device for turning the stator vanes of a guiding apparatus for a turbo-machine, comprising: a housing for said turbomachine; a synchronizing ring adapted to be turned about the axis of said turbo-machine and simultaneously move along said axis; a plurality of levers, each said lever being pivotably connected at one end thereof with said synchronizing ring and at the other end thereof being rigidly connected with the vanes of said guiding apparatus; means mounted on said synchronizing ring for limiting the displacement of the latter in a plane extending normal to the axis of said turbo-machine, said means being formed of a plurality of rollers; kinematic links being each Connected at one end thereof with respectively each of said rollers and at the other end thereof being each connected to said ring, said links including pivotable means allowing said roller to turn in response to interaction thereof with said housing about an axis directed along the radius of said ring and passing approximately through the axis of said roller, and a carrier for turning said roller being adapted to cooperate with said roller.
Claim 2
Independent Claim
184 words
A device for turning the stator vanes of a guiding apparatus for a turbo-machine, comprising: a housing for said turbomachine; a synchronizing ring adapted to be turned about the axis of said turbo-machine and simultaneously move along said axis; a plurality of levers, each said lever being pivotably connected at one end thereof with said synchronizing ring and at the other end thereof being rigidly connected with the vanes of said guiding apparatus; means mounted on said synchronizing ring for limiting the displacement of the latter in a plane extending normal to the axis of said turbo-machine, said means being formed of a plurality of rollers; kinematic links being each Connected at one end thereof with respectively each of said rollers and at the other end thereof being each connected to said ring, said links including pivotable means allowing said roller to turn in response to interaction thereof with said housing about an axis directed along the radius of said ring and passing approximately through the axis of said roller, and a carrier for turning said roller being adapted to cooperate with said roller.
Claim 3
Dependent Claim
57 words
A device as claimed in claim 1, said pivotable means comprising: a yoke engaging said carrier and having at one end a journal which is pivoted in said synchronizing ring and at the other end a slot accomodating said roller so as to be arranged in its plane of symmetry passing through the axis of said journal.
Claim 4
Dependent Claim
37 words
A device as claimed in claim 2, said carrier being pivotably connected at one end thereof with the journal of said yoke and at the other thereof being pivotably connected with a turning axis of said vanes.
Claim 5
Dependent Claim
71 words
A device as claimed in claim 1, said carrier being pivotably connected at one end with said journal, said journal having an axis lying in a plane passing through the axis of pivots connecting said levers with said synchronizing ring, and at the other end being pivotably connected with said housing for said turbo-machine, the last-mentioned pivotable connection being located in a plane passing through the turning axes of said vanes.
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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) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |