US1269541A - Elastic-fluid turbine. - Google Patents
Elastic-fluid turbine. Download PDFInfo
- Publication number
- US1269541A US1269541A US18518017A US18518017A US1269541A US 1269541 A US1269541 A US 1269541A US 18518017 A US18518017 A US 18518017A US 18518017 A US18518017 A US 18518017A US 1269541 A US1269541 A US 1269541A
- Authority
- US
- United States
- Prior art keywords
- rim
- blade
- elastic
- blades
- grooves
- 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 - Lifetime
Links
- 239000012530 fluid Substances 0.000 title description 6
- 230000000295 complement effect Effects 0.000 description 3
- RLQJEEJISHYWON-UHFFFAOYSA-N flonicamid Chemical compound FC(F)(F)C1=CC=NC=C1C(=O)NCC#N RLQJEEJISHYWON-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 1
Images
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
- F01D5/3023—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses
- F01D5/3046—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses the rotor having ribs around the circumference
Definitions
- Figure 1 is a view illustrating the structure of the blade and blade-carrying member before they are fastened together
- Fig. 2' shows the blade mounted on the blade-carrying member
- Fig. 3 is a side'view of a portion of a blade-carrying member withblades' mounted thereon
- Fig. 4 is a top plan view of Fig. 3.
- 5 indicates a rotor or blade-carrying member which may take the form of a disk, drum, or ring, for example, and 6 indicates blades mounted thereon.
- the member 5 is provided with shoulders 7 and a rim 8 upon opposite sides-- of which are formed concentric ridges or projections 9 which are undercut more or less So that they slope or incline toward the center of the member 5. The amount which they are unilercut is exaggerated in the drawings for the purpose of illustration. Between the ridges 9 are concentric grooves 10 which also incline toward the center of member 5.
- the bases of the buckets are U- shaped, having legs 11 which straddle the rim 8. The inner sides of the legs 11 are formed with ridges 12 and groovesl3 which are complementar "to ooves l0 and ridges 9 on rim 8, and s ope 1n the opposite direction.
- the bucket base is .put over the rim with one leg on each side, as shown in Fig. 1, after which the two legs are pressed together toward the rim, thus bringing the ridges and grooves thereon into lockin engagement, as shown in Fig. 2.
- a heavy pressure is required and the blade base is displaced radially outward away for the shoulders 7, which obviously will leave a small space between the bottom of the legs 11 and the surfaces of the shoulders 7.
- this space is filled up so as to prevent the blades from becoming loose. This is preferably done by upsetting the bottoms of the legs 11, as the portions thereof indicated at 14, Fig. 1. After the upsetting operation the appearance is as shown in Fig. 2.
- Other means for'fillin such space may be employed, however. or example, the shoulders 7 may be'upset, or the space filled in by some other means.
- the blades are very firmly fixed in position.
- a blade-carrying member having a rim provided with projections and grooves which slope toward the center of said member, and blades having U-shaped bases which fit over. said rim and have complementary projections and grooves sloping away from the center of said member, said projections and grooves on the rim and blade bases interlocking to fasten the blades to the rim.
- a blade-carrying member having a rim, and shoulders at the base of the rim, said rim being provided with projections and grooves which slopc toward the center of said member, blades havin U-shaped bases which fit over said rim and have complementary projections and grooves slopin away from the center of said member, said projections and grooves on the rim and blade bases interlocking to fasten the blades to the rim, and means for filling up the spaces leftbetween said shoulders and the radially inner ends of the blade bases.
- a blade carrying member having a rim, and shoulders at the base of the rim, said rim being provided with projections and grooves which slope toward the center of said member, and blades having U- shaped bases which fit over said rim and have complementary projections in the meats-i grooves sloping away from the center of said members, said projections and grooves on the rim and blade bases interlocking to fasten the bladesto the rim, the radially inner ends of the blade bases being upset against said shoulders to fill the space left between such blade base ends and said shoulders to hold the blades securely in position.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Description
' B. & F. uunesm'dm.
ELASTIC FLUID TURBINE.
I APPLI I- 1,269,5 4=1 v Q Patented June 11, 1918.
Inventors:
y fly 4- W Their J ttornev Birger- L j un gstr-jm, Ff-edri k l. un gstfbm,
BERGER LJ'UNGSTBbM AND FBEDRIK LJ'UNGSTRfiM, OF STOCKHOLM, SWEDEN, ASSIGLF' UNITED STATES PATENT OFFICE.
OBS T0 AKTIEBOLAG ET LJUNGSTBfiMS ANGTURBIN, A CORI'ORATION 0F SWEDEN.
ELASTIC-FLUID TURBINE.
Specification of Letters Patent.
Patented June 11, 1918.
. Application filed August a, 1917. Serial No. 185,180.
To all whom it may concern:
. Be it known that we, BIRGER LJUNG- srnoar and Fnnnnrx LJUNcs'rRoM, subjects of the King of Sweden, residing at Stockholm, Sweden, have invented certain new and useful Improvements in Elastic-Fluid In the accompanying drawing which is illustrative of our invention, Figure 1 is a view illustrating the structure of the blade and blade-carrying member before they are fastened together, Fig. 2' shows the blade mounted on the blade-carrying member; Fig. 3 is a side'view of a portion of a blade-carrying member withblades' mounted thereon, and Fig. 4 is a top plan view of Fig. 3.
Referring to the drawing, 5 indicates a rotor or blade-carrying member which may take the form of a disk, drum, or ring, for example, and 6 indicates blades mounted thereon. The member 5 is provided with shoulders 7 and a rim 8 upon opposite sides-- of which are formed concentric ridges or projections 9 which are undercut more or less So that they slope or incline toward the center of the member 5. The amount which they are unilercut is exaggerated in the drawings for the purpose of illustration. Between the ridges 9 are concentric grooves 10 which also incline toward the center of member 5. The bases of the buckets are U- shaped, having legs 11 which straddle the rim 8. The inner sides of the legs 11 are formed with ridges 12 and groovesl3 which are complementar "to ooves l0 and ridges 9 on rim 8, and s ope 1n the opposite direction.
In assembling the blades on the rim, the bucket base is .put over the rim with one leg on each side, as shown in Fig. 1, after which the two legs are pressed together toward the rim, thus bringing the ridges and grooves thereon into lockin engagement, as shown in Fig. 2. For this pressing together a heavy pressure is required and the blade base is displaced radially outward away for the shoulders 7, which obviously will leave a small space between the bottom of the legs 11 and the surfaces of the shoulders 7. To secure a firm and reliable connection this space is filled up so as to prevent the blades from becoming loose. This is preferably done by upsetting the bottoms of the legs 11, as the portions thereof indicated at 14, Fig. 1. After the upsetting operation the appearance is as shown in Fig. 2. Other means for'fillin such space may be employed, however. or example, the shoulders 7 may be'upset, or the space filled in by some other means.
By the above described arrangement,- the use of a filling slot is avoided and a solid ring of -equally spaced blades results. The
assembling of the blades on the blade-carrying member, is also much simplified. At
the same time, the blades are very firmly fixed in position.
In accordance with the provisions of the patent statutes, We have described the principle of operation of our invention, together with the apparatus which we now consider to represent the best embodiment thereof; but we desire to have it understood that the apparatus shown is only illustrative, and that the invention can be carried out by other means.
What we claim as new and desire to secure by Letters Patent of the United States, 7
1. In an elastic-fluid turbine, the combination of a blade-carrying member having a rim provided with projections and grooves which slope toward the center of said member, and blades having U-shaped bases which fit over. said rim and have complementary projections and grooves sloping away from the center of said member, said projections and grooves on the rim and blade bases interlocking to fasten the blades to the rim.
2. In an elastic-fluid turbine, the combination of a blade-carrying member having a rim, and shoulders at the base of the rim, said rim being provided with projections and grooves which slopc toward the center of said member, blades havin U-shaped bases which fit over said rim and have complementary projections and grooves slopin away from the center of said member, said projections and grooves on the rim and blade bases interlocking to fasten the blades to the rim, and means for filling up the spaces leftbetween said shoulders and the radially inner ends of the blade bases.
3. In an elastic fiuid turbine, the combination of a blade carrying member having a rim, and shoulders at the base of the rim, said rim being provided with projections and grooves which slope toward the center of said member, and blades having U- shaped bases which fit over said rim and have complementary projections in the meats-i grooves sloping away from the center of said members, said projections and grooves on the rim and blade bases interlocking to fasten the bladesto the rim, the radially inner ends of the blade bases being upset against said shoulders to fill the space left between such blade base ends and said shoulders to hold the blades securely in position.
In witness whereofi, we have hereunto set our hands this 22nd day of June, 1917.
smear; LJUNGsTnoi/i. FREDRIK LJUNGSTROM.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18518017A US1269541A (en) | 1917-08-08 | 1917-08-08 | Elastic-fluid turbine. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18518017A US1269541A (en) | 1917-08-08 | 1917-08-08 | Elastic-fluid turbine. |
Publications (1)
Publication Number | Publication Date |
---|---|
US1269541A true US1269541A (en) | 1918-06-11 |
Family
ID=3337179
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US18518017A Expired - Lifetime US1269541A (en) | 1917-08-08 | 1917-08-08 | Elastic-fluid turbine. |
Country Status (1)
Country | Link |
---|---|
US (1) | US1269541A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1247335B (en) * | 1965-04-02 | 1967-08-17 | Rolls Royce | Flow machine impeller |
US4020538A (en) * | 1973-04-27 | 1977-05-03 | General Electric Company | Turbomachinery blade tip cap configuration |
-
1917
- 1917-08-08 US US18518017A patent/US1269541A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1247335B (en) * | 1965-04-02 | 1967-08-17 | Rolls Royce | Flow machine impeller |
US4020538A (en) * | 1973-04-27 | 1977-05-03 | General Electric Company | Turbomachinery blade tip cap configuration |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2454580A (en) | Method of manufacturing bladed rotors | |
US3043562A (en) | Combination sealing and restraining member for long-shank turbo-machine buckets | |
US3728042A (en) | Axial positioner and seal for cooled rotor blade | |
EP0275726B1 (en) | Turbine wheel with ceramic blades | |
CA1209483A (en) | Gas turbine blade interplatform seal | |
US2199243A (en) | Elastic fluid turbine rotor | |
US2380276A (en) | Welded structure | |
EP0165860B1 (en) | Axial locking device for a rotor blade of a turbo machine | |
US1269541A (en) | Elastic-fluid turbine. | |
US2410588A (en) | Turbine blade and assembly thereof | |
US2805838A (en) | Rotors for turbines and similarly bladed fluid flow machines | |
US2036083A (en) | Bucket wheel | |
US1366667A (en) | Elastic-fluid turbine | |
US1318091A (en) | Hredrik ljtjngstrsm | |
US3076633A (en) | Turbine and like rotor blades | |
US1345678A (en) | Mounting for turbine-buckets | |
US2315616A (en) | Turbine blade locking piece | |
US1470506A (en) | Method of manufacturing turbine elements | |
US1118361A (en) | Wheel for elastic-fluid turbines. | |
US822801A (en) | Turbine bucket-wheel. | |
US905487A (en) | Bucket-wheel for turbines. | |
US2255486A (en) | Elastic fluid turbine bucket wheel | |
US1072457A (en) | Blade-mounting. | |
US980732A (en) | Bucket structure for turbines. | |
US1585713A (en) | Turbine-blade fastening |