US4377370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety device for a rotating element of a turbine engine
Assignee: Safran Aircraft Engines SAS
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Filing: 1980-10-16
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Granted: 1983-03-22
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Expires: 2000-10-16
Abstract
Abstract A ring is secured to the casing of the compressor or of the turbine of a turbine engine, and has an inner envelope, a first ring of segments of a honeycomb material, a winding of wire sections encased in a polymerizable resin, a second ring of honeycomb segments and an external envelope of a thin material.
Inventors
- 👤 Gerard Porcelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:11
CPC Classifications
F; F01; F01D; F01D21/00; F01D21/04; F01D21/045; F05; F05D; F05D2300/00; F05D2300/60; F05D2300/612; Y; Y02; Y02T; Y02T50/00; Y02T50/60; Y10; Y10S; Y10S428/00; Y10S428/911
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
124 words
Safety device for a rotating element of a turbine engine located in the casing of an engine and having rotating blades, comprising a ring surrounding a stage of blades, upon which is wound an elongated element, said ring being capable of being traversed by a fragment of a ruptured blade or a blade that has been detached and which strikes the elongated element, and wherein the windings of said elongated element move to absorb the kinetic energy, the improvement comprising: starting from the innermost layer an internal envelope, a first ring of segments made of a deformable material, a winding of an elongated element encased in a polymerizable material, a second ring of segments made of a deformable material and a thin external envelope.
Claim 2
Dependent Claim
124 words
Safety device for a rotating element of a turbine engine located in the casing of an engine and having rotating blades, comprising a ring surrounding a stage of blades, upon which is wound an elongated element, said ring being capable of being traversed by a fragment of a ruptured blade or a blade that has been detached and which strikes the elongated element, and wherein the windings of said elongated element move to absorb the kinetic energy, the improvement comprising: starting from the innermost layer an internal envelope, a first ring of segments made of a deformable material, a winding of an elongated element encased in a polymerizable material, a second ring of segments made of a deformable material and a thin external envelope.
Claim 3
Dependent Claim
25 words
Device according to claim 1, wherein the winding of the elongated element encased in a polymerizable resin is contained between envelopes of an elastic material.
Claim 4
Dependent Claim
44 words
Device according to claim 1 or 2, wherein the winding of the elongated element consists of wire sections having a length of at least two times the circumference of the envelope upon which they are coiled thus providing for the production of complete loops.
Claim 5
Dependent Claim
14 words
Device according to claim 3, wherein the ends of the wire sections are free.
Claim 6
Dependent Claim
24 words
Device according to claim 3, wherein the direction of winding is of the elongated element in the direction of the rotation of the blades.
Claim 7
Dependent Claim
18 words
Device according to claim 3, wherein the elongated element consists of polyimide cables encased in a foamed resin.
Claim 8
Dependent Claim
14 words
Device according to claim 1, wherein the segments are formed of a honeycomb material.
Claim 9
Dependent Claim
18 words
Device according to claim 1, wherein the internal envelope is perforated and defines with the sectors, acoustic panels.
Claim 10
Dependent Claim
73 words
Device according to claim 1 wherein said internal envelope is formed of two steel semi-circular segments, said first ring of segments being of a steel honeycomb material; a first envelope of sheet steel, a winding of sections of polyimide cables encased in foamed resin, a second sheet steel envelope, a second ring of light alloy honeycomb segments and an external envelope of sheet steel bolted to straps of the casing of the engine.
References Cited (Backward Citations)
FR1435869A
Cited
FR2018042A1
Cited
US3602602A
Cited
FR2216174B1
Cited
US4125053A
Cited
FR2375443A1
Cited
US4149824A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-03-21 | 1986-09-20 | 1987-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-03-21 | 1990-09-20 | 1991-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-03-21 | 1994-09-20 | 1995-03-22 | $7700.00 | Window Closed / Lapsed |