US3824034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guide blade ring
Assignee: Rolls Royce Solutions GmbH
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Filing: 1972-04-27
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Granted: 1974-07-16
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Expires: 1992-04-27
Abstract
Abstract A guide blade ring which divided into segments is secured at the gas guide housing of an axial turbine, for example, of an exhaust-gas turbo-supercharger for a reciprocating internal combustion engine, in which the joints between the individual segments form in the cold condition air gaps that extend approximately in the direction of the blade inlet angle; each segment includes a radially inwardly extending flange at which the respective segment is secured by means of two bolts between an inner cover ring and the gas guide housing whereby the inner cover ring assumes the radial centering function of the segments and the sealing function for the inner joint gaps; a centering bushing is arranged in one of the two bolt bores which surrounds the respective bolt with a spacing and connects with each other the flange and the gas guide housing while simultaneously determining also the position of the segments in the circumferential direction; the bolt bore for the respective other bolt of each segment surrounds the same with a gap.
Inventors
- 👤 W Leicht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:12
CPC Classifications
F; F01; F01D; F01D9/00; F01D9/02; F01D9/04; F01D9/042
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
155 words
A guide blade ring and support arrangement for attaching said guide blade ring to a gas guide housing; said arrangement comprising: a guide blade ring formed of a plurality of segments with joints between individual segments forming respective air gaps in the cold condition of said guide blade ring, each of said segments including a radially inwardly extending flange means, two circumferentially spaced bolts extending through respective bolt bores in each of said flange means for attaching said flange means to said housing, and an inner cover ring means separate from said housing for radially centering said segments with respect to said housing and for sealing radially inner portions of said gaps between said segments, said inner cover ring means including a radially outwardly facing surface for radially centering said segments with respect to said housing, said bolts being positioned for clamping said inner cover ring means together with said flange means to said housing.
Claim 2
Dependent Claim
155 words
A guide blade ring and support arrangement for attaching said guide blade ring to a gas guide housing; said arrangement comprising: a guide blade ring formed of a plurality of segments with joints between individual segments forming respective air gaps in the cold condition of said guide blade ring, each of said segments including a radially inwardly extending flange means, two circumferentially spaced bolts extending through respective bolt bores in each of said flange means for attaching said flange means to said housing, and an inner cover ring means separate from said housing for radially centering said segments with respect to said housing and for sealing radially inner portions of said gaps between said segments, said inner cover ring means including a radially outwardly facing surface for radially centering said segments with respect to said housing, said bolts being positioned for clamping said inner cover ring means together with said flange means to said housing.
Claim 3
Dependent Claim
24 words
An arrangement according to claim 1, characterized in that the joints between individual segments extend approximately in the direction of the blade inlet angle.
Claim 4
Dependent Claim
26 words
An arrangement according to claim 2, characterized in that the guide blade ring is part of an exhaust gas turbo-charger for a reciprocating internal combustion engine.
Claim 5
Dependent Claim
93 words
An arrangement according to claim 1, wherein a centering bush means is arranged in one of the two bolt bores of each flange means, said centering bush means being in surrounding relationship to and spaced from the one of said bolts in said bore, said centering bush means being in engagement with said housing and said respective flange for maintaining the respective segment in a predetermined circumferential position with respect to said housing, the other of said bolt bores being larger than the bolt therein to form a gap for permitting thermal expansion.
Claim 6
Dependent Claim
19 words
An arrangement according to claim 4, wherein said bolts extend through respective openings in said inner cover ring means.
Claim 7
Dependent Claim
23 words
An arrangement according to claim 5 wherein said inner cover ring means includes a radially outwardly facing surface in engagement with said housing.
Claim 8
Dependent Claim
75 words
An arrangement according to claim 1 further comprising an outer cover ring means for sealing radially outer portions of said gaps between said segments, said outer cover ring means including an axially facing abutment surface which is engageable with outer casing portions of said segments, said outer cover ring means being dimensioned and configured such that it surrounds said segments with an axial and radial spacing in the cold condition of said guide blade ring.
Claim 9
Dependent Claim
24 words
An arrangement according to claim 7, characterized in that the joints between individual segments extend approximately in the direction of the blade inlet angle.
Claim 10
Dependent Claim
37 words
An arrangement according to claim 7, characterized in that a relief slot extending approximately in the direction of the blade inlet angle is provided in the outer casing portion of each segment at each second blade channel.
Claim 11
Dependent Claim
26 words
An arrangement according to claim 5, characterized in that the guide blade ring is part of an exhaust gas turbo-charger for a reciprocating internal combustion engine.
Claim 12
Dependent Claim
16 words
An arrangement according to claim 9, wherein each segment includes a plurality of said relief slots.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-15 | 1978-01-14 | 1978-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-15 | 1982-01-14 | 1982-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-15 | 1986-01-14 | 1986-07-16 | $7700.00 | Window Closed / Lapsed |