GB1296791A - - Google Patents
Info
- Publication number
- GB1296791A GB1296791A GB1296791DA GB1296791A GB 1296791 A GB1296791 A GB 1296791A GB 1296791D A GB1296791D A GB 1296791DA GB 1296791 A GB1296791 A GB 1296791A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rings
- roots
- spacers
- pins
- blade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
- F01D5/3069—Fixing blades to rotors; Blade roots ; Blade spacers between two discs or rings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
1296791 Turbomachine blade fixing BROWN BOVERI - SULZER TURBOMACHINERY Ltd 30 Nov 1970 [12 Dec 1969] 56722/70 Heading FIT A stator blade assembly for an axial flow turbine, compressor or pump comprises a row of angularly spaced blades 2 having roots 3 of generally square cross-section separated by spacers 8 and clamped between axially spaced rings 10, 11, the roots defining a saw-tooth outline when viewed in a radial direction. In the arrangement shown the faces of rings 10, 11 have a corresponding sawtooth outline. Thus to change the pitch angle of blades 2 it is only necessary to substitute rings 10, 11 having a different saw-tooth outline together with spacers 8 of different thickness. In a modification Fig. 6 (not shown) the root clamping means comprises rings (20, 21) into which are screwed round headed axially extending pins (22) bearing on the blade roots, pitch adjustment being effected by screwing the pins in or out and by replacement of the root spacers (86). In a further modification Fig.7 (not shown) the clamping means comprises rings (30, 31) carrying radially extending frustoconical pins (32) bearing on the blade roots.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1850069A CH516731A (en) | 1969-12-12 | 1969-12-12 | Blade ring for turbo machines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1296791A true GB1296791A (en) | 1972-11-15 |
Family
ID=4433408
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1296791D Expired GB1296791A (en) | 1969-12-12 | 1970-11-30 |
Country Status (7)
Country | Link |
---|---|
US (1) | US3734645A (en) |
BE (1) | BE760151A (en) |
CH (1) | CH516731A (en) |
DE (1) | DE1963922C3 (en) |
FR (1) | FR2072221A5 (en) |
GB (1) | GB1296791A (en) |
NL (1) | NL7000530A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010002520A1 (en) * | 2010-03-02 | 2011-09-08 | Bernhard Unterlercher | Turbine wheel with material and form-fitting connected blades |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1160529B (en) * | 1983-03-09 | 1987-03-11 | Cofimco Srl | BLADE HOLDER HUB FOR AXIAL FAN |
JP3034417B2 (en) * | 1994-02-18 | 2000-04-17 | 株式会社東芝 | Rotor blade control device for axial flow turbine |
DE10014189A1 (en) | 2000-03-23 | 2001-09-27 | Alstom Power Nv | Blade fastening for rotating machinery has blades fitted in slots without play or with pretensioning so that torsional moments acting on inner platform or blade roots oppose torsional moments acting upon outer platform or support wing |
US6929453B2 (en) * | 2003-12-11 | 2005-08-16 | Siemens Westinghouse Power Corporation | Locking spacer assembly for slotted turbine component |
EP1674734A1 (en) * | 2004-12-21 | 2006-06-28 | ALSTOM Technology Ltd | Method for improving the flow stability of a turbo compressor |
EP1707747A1 (en) * | 2005-03-18 | 2006-10-04 | Siemens Aktiengesellschaft | Blade root fixation device and corresponding mounting method |
US20090110553A1 (en) * | 2007-10-30 | 2009-04-30 | Min-I Wu | Omnidirectional electric fan and fan blade structure |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US894659A (en) * | 1906-12-29 | 1908-07-28 | Gen Electric | Bucket-wheel for turbines. |
US1133191A (en) * | 1913-11-29 | 1915-03-23 | Hersey Staples | Screw-propeller. |
US1156529A (en) * | 1914-06-10 | 1915-10-12 | Gen Electric | Turbine bucket-wheel. |
US1590328A (en) * | 1923-08-13 | 1926-06-29 | Westinghouse Electric & Mfg Co | Fastening means for turbine blading |
FR863755A (en) * | 1939-09-25 | 1941-04-09 | Rateau Soc | Impellers for turbo-machines |
GB614074A (en) * | 1946-07-02 | 1948-12-09 | Aubrey Lawrence Collins | Improvements in or relating to fans |
DE872816C (en) * | 1951-05-13 | 1953-04-09 | Benno Schilde Maschb A G | Hub for screw fan wheel |
BE541578A (en) * | 1953-05-27 | |||
NL207494A (en) * | 1955-06-28 | |||
US2918255A (en) * | 1957-03-15 | 1959-12-22 | Westinghouse Electric Corp | Elastic fluid utilizing apparatus |
GB928349A (en) * | 1960-12-06 | 1963-06-12 | Rolls Royce | Improvements in or relating to bladed rotors of fluid flow machines |
US3088708A (en) * | 1961-12-29 | 1963-05-07 | Seymour J Feinberg | Compressor blade locking device |
-
1969
- 1969-12-12 CH CH1850069A patent/CH516731A/en not_active IP Right Cessation
- 1969-12-20 DE DE1963922A patent/DE1963922C3/en not_active Expired
-
1970
- 1970-01-14 NL NL7000530A patent/NL7000530A/xx unknown
- 1970-11-20 FR FR7041869A patent/FR2072221A5/fr not_active Expired
- 1970-11-30 GB GB1296791D patent/GB1296791A/en not_active Expired
- 1970-12-10 BE BE760151A patent/BE760151A/en unknown
- 1970-12-11 US US00097105A patent/US3734645A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010002520A1 (en) * | 2010-03-02 | 2011-09-08 | Bernhard Unterlercher | Turbine wheel with material and form-fitting connected blades |
Also Published As
Publication number | Publication date |
---|---|
FR2072221A5 (en) | 1971-09-24 |
US3734645A (en) | 1973-05-22 |
DE1963922A1 (en) | 1971-06-24 |
DE1963922C3 (en) | 1973-01-04 |
DE1963922B2 (en) | 1972-06-22 |
CH516731A (en) | 1971-12-15 |
NL7000530A (en) | 1971-06-15 |
BE760151A (en) | 1971-06-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |