DE1095453B - Multi-stage axial flow machine - Google Patents
Multi-stage axial flow machineInfo
- Publication number
- DE1095453B DE1095453B DER19559A DER0019559A DE1095453B DE 1095453 B DE1095453 B DE 1095453B DE R19559 A DER19559 A DE R19559A DE R0019559 A DER0019559 A DE R0019559A DE 1095453 B DE1095453 B DE 1095453B
- Authority
- DE
- Germany
- Prior art keywords
- welding
- machine according
- rings
- blades
- machine
- 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.)
- Pending
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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
- F01D25/162—Bearing supports
-
- 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
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
- F01D9/042—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators
- F01D9/044—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators permanently, e.g. by welding, brazing, casting or the like
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
DEUTSCHESGERMAN
Mehrstufige Axialströmungsmaschinen, bei denen wenigstens ein Läuferlager von einem feststehenden Leitrad mit hohlen Schaufeln getragen wird, sind bekannt. Es ist ferner bekannt, Nabe und Felge des Leitrades allein durch die hohlen Schaufeln, z. B. durch Schweißung, miteinander zu verbinden.Multi-stage axial flow machines in which at least one rotor bearing is supported by a stationary stator carried with hollow blades are known. It is also known that the hub and rim of the stator alone through the hollow blades, e.g. B. by welding to connect with each other.
Gemäß der Erfindung sind bei einer mehrstufigen Axialströmungsmaschine dieser Art Nabe und Felge des Leitrades aus einseitig offenen kastenförmigen Abstandsteilen zusammengesetzt, deren Seiten wände an den Enden der benachbarten Schaufeln anliegen, deren Böden jeweils dem Durchströmkanal zugewandt sind und deren Stirnwände in Normalebenen der Maschinenachse liegen und beiderseits an gemeinsamen Ringen befestigt sind.According to the invention, in a multistage axial flow machine of this type, the hub and rim of the Stator composed of box-shaped spacer parts open on one side, the sides of which on the walls The ends of the adjacent blades are in contact, the bottoms of which each face the through-flow channel and their end walls lie in normal planes of the machine axis and on both sides on common rings are attached.
Hierdurch ergibt sich gegenüber den erwähnten bekannten Konstruktionen eine erhebliche Vereinfachung und Gewichtsersparnis. Eine hierbei eintretende Verringerung der Festigkeit kann in Kauf genommen werden, weil die Festigkeit der erfindungsgemäßen Konstruktion den praktischen Bedürfnissen vollauf genügt.This results in a considerable simplification compared to the known constructions mentioned and weight savings. A reduction in strength that occurs here can be accepted because the strength of the construction according to the invention fully meets the practical needs enough.
Zwischen den Schaufeln können den Durchströmkanal begrenzende Wandstücke an den vorbezeichneten gemeinsamen Ringen z. B. durch Schweißung befestigt sein. An den radial äußeren Ringen kann ein den Durchströmkanal begrenzendes Rohrstück z. B. durch Schweißung befestigt sein, durch dessen Schlitze die Schaufelenden gesteckt sind. Die Ränder der Schlitze werden zweckmäßig radial nach außen gebördelt; die hohlen Abstandsteile weisen Ausdallungen auf, welche das den Durchströmkanal begrenzende Rohrstück berühren und mit diesem an den Berührungsstellen punktverschweißt sind. Die Anordnung kann so getroffen sein, daß ein das Lager über eine Büchse tragender Ring mit dem stromabwärts gelegenen Ring durch Schweißung fest verbunden ist.Between the blades, the through-flow channel delimiting wall pieces can be attached to the aforementioned common Rings z. B. be attached by welding. On the radially outer rings, the flow channel can be limiting piece of pipe z. B. be fastened by welding, the blade ends through the slots are plugged. The edges of the slots are expediently crimped radially outwards; the caves Spacer parts have bulges which touch the pipe section delimiting the flow channel and spot-welded to this at the points of contact are. The arrangement can be made so that a ring carrying the bearing via a sleeve with the downstream located ring is firmly connected by welding.
Die Figuren zeigen zwei Ausführungsformen der Erfindung. Es stellen dar:The figures show two embodiments of the invention. They represent:
Fig. 1 den Querschnitt durch den Eintrittsteil einer Axialströmungsmaschine,1 shows the cross section through the inlet part of an axial flow machine,
Fig. 2 den Schnitt nach Linie II—II der Fig. 1,FIG. 2 shows the section along line II-II of FIG. 1,
Fig. 3 den Schnitt nach Linie III—III der Fig. 1,3 shows the section along line III-III of FIG. 1,
Fig. 4 den Schnitt nach Linie IV—IV der Fig. 1,FIG. 4 shows the section along line IV-IV of FIG. 1,
Fig. 5 eine abgewandelte Form eines Teiles der Ausführung der Fig. 1 bis 4,5 shows a modified form of part of the embodiment of FIGS. 1 to 4,
Fig. 6 den Schnitt nach Linie VI—VI der Fig. 5 und Fig. 7 den Schnitt nach Linie VII—VII der Fig. 5.6 shows the section along line VI-VI of FIGS 7 shows the section along line VII-VII in FIG.
Gemäß den Fig. 1 bis 4 sind Nabe und Felge des Leitrades der Maschine allein durch die hohlen Schaufeln 19, z. B. durch Schweißung, miteinander verbunden und aus einseitig offenen kastenförmigen Abstandsteüen 21 bzw. 27 zusammengesetzt. Die Seitenwände 21 δ bzw. 27 δ dieser kastenförmigen Teile liegen an den Enden 19« Mehrstufige AxialströmungsmaschineAccording to FIGS. 1 to 4, the hub and rim of the stator the machine only by the hollow blades 19, z. B. by welding, interconnected and composed of box-shaped spacers 21 and 27, which are open on one side. The side walls 21 δ and 27 δ of these box-shaped parts are at the ends 19 ″ Multistage axial flow machine
Anmelder:Applicant:
Rolls-Royce Limited,
Derby (Großbritannien)Rolls-Royce Limited,
Derby (Great Britain)
Vertreter: Dipl.-Ing. F. WeickmannRepresentative: Dipl.-Ing. F. Weickmann
und Dr.-Ing. A. Weickmann, Patentanwälte,and Dr.-Ing. A. Weickmann, patent attorneys,
München 2, Brunnstr. 8/9Munich 2, Brunnstr. 8/9
Nigel Edward Payne, Burton-on-Trent, Stafford,
und Dennis Arthur Chapman, Älvaston, DerbyNigel Edward Payne, Burton-on-Trent, Stafford,
and Dennis Arthur Chapman, Älvaston, Derby
(Großbritannien),
sind als Erfinder genannt worden(Great Britain),
have been named as inventors
und 19 δ der benachbarten Schaufeln an, deren Böden 21 a
bzw. 27« jeweils dem Durchströmkanal zugewandt sind und deren Stirnwände 21c bzw. 27 c in Normalebenen der
Maschinenachse liegen und beiderseits an gemeinsamen Ringen 22 und 25 bzw. 28 und 29 z. B. durch Schweißung
befestigt sind. Zwischen den Schaufeln 19 sind den Durchströmkanal begrenzende Wandstücke 26 an den
Ringen 22, 25 z. B. durch Schweißung befestigt, desgleichen Wandstücke 30 an den Ringen 28, 29.
Gemäß der Ausführungsform der Fig. 5 bis 7 ist an den Ringen 22, 25 ein den Durchströmkanal begrenzendes
Rohrstück 38 z. B. durch Schweißung befestigt, durch dessen Schlitze die Schaufelenden gesteckt sind. Die
Ränder 38« der Schlitze können radial nach außen gebördelt sein. Die Abstandsteile 21 weisen Ausdallungen
2IiZ auf, welche das Rohrstück 38 berühren und mit
diesem an den Berührungsstellen 21 c punktverschweißt sind. Wie aus Fig. 1 ersichtlich, ist ein das Lager über
eine Büchse 32 tragender Ring 31 mit dem stromabwärts gelegenen Ring 29 durch Schweißung fest verbunden.and 19 δ of the adjacent blades whose bases 21 a and 27 ″ each face the flow channel and whose end walls 21 c and 27 c are in normal planes of the machine axis and on both sides on common rings 22 and 25 or 28 and 29 z. B. are attached by welding. Between the blades 19 the through-flow channel delimiting wall pieces 26 on the rings 22, 25 z. B. fastened by welding, as well as wall pieces 30 on the rings 28, 29.
According to the embodiment of FIGS. B. fastened by welding, through the slots of which the blade ends are inserted. The edges 38 ″ of the slots can be crimped radially outward. The spacers 21 have bulges 2IiZ which touch the pipe section 38 and are spot-welded to this at the contact points 21c. As can be seen from FIG. 1, a ring 31 carrying the bearing via a bushing 32 is firmly connected to the downstream ring 29 by welding.
Claims (6)
Schweizerische Patentschrift Nr. 301 115;
französische Patentschriften Nr. 1 095079, 1 095 927; USA.-Patentschriften Nr. 2 672 279, 2 738126.Considered publications:
Swiss Patent No. 301 115;
French Patent Nos. 1,095,079, 1,095,927; U.S. Patent Nos. 2,672,279, 2,738,126.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DER19559A DE1095453B (en) | 1955-07-18 | 1956-08-31 | Multi-stage axial flow machine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2078655A GB802508A (en) | 1955-07-18 | 1955-07-18 | Improvements in or relating to fluid machines such as compressors and turbines |
DER19559A DE1095453B (en) | 1955-07-18 | 1956-08-31 | Multi-stage axial flow machine |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1095453B true DE1095453B (en) | 1960-12-22 |
Family
ID=25991169
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DER19559A Pending DE1095453B (en) | 1955-07-18 | 1956-08-31 | Multi-stage axial flow machine |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1095453B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1208556B (en) * | 1961-10-11 | 1966-01-05 | M A N Turbo Ges M B H | Distributor for axial turbines operated with gaseous or liquid working medium |
US3442442A (en) * | 1966-12-02 | 1969-05-06 | Gen Electric | Mounting of blades in an axial flow compressor |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2672279A (en) * | 1950-08-03 | 1954-03-16 | United Aircraft Corp | End bell construction |
CH301115A (en) * | 1950-08-01 | 1954-08-31 | Rolls Royce | Rotor for an axially loaded turbomachine. |
FR1095079A (en) * | 1952-07-10 | 1955-05-26 | Havilland Engine Co Ltd | Improvements to annular rows of fixed blades of axial turbines or compressors |
FR1095927A (en) * | 1953-02-02 | 1955-06-07 | Bristol Aeroplane Co Ltd | Improvements to the mounting of wing profile vanes in compressors and other applications |
US2738126A (en) * | 1950-12-08 | 1956-03-13 | Armstrong Siddeley Motors Ltd | Construction of compressor rotors |
-
1956
- 1956-08-31 DE DER19559A patent/DE1095453B/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH301115A (en) * | 1950-08-01 | 1954-08-31 | Rolls Royce | Rotor for an axially loaded turbomachine. |
US2672279A (en) * | 1950-08-03 | 1954-03-16 | United Aircraft Corp | End bell construction |
US2738126A (en) * | 1950-12-08 | 1956-03-13 | Armstrong Siddeley Motors Ltd | Construction of compressor rotors |
FR1095079A (en) * | 1952-07-10 | 1955-05-26 | Havilland Engine Co Ltd | Improvements to annular rows of fixed blades of axial turbines or compressors |
FR1095927A (en) * | 1953-02-02 | 1955-06-07 | Bristol Aeroplane Co Ltd | Improvements to the mounting of wing profile vanes in compressors and other applications |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1208556B (en) * | 1961-10-11 | 1966-01-05 | M A N Turbo Ges M B H | Distributor for axial turbines operated with gaseous or liquid working medium |
US3442442A (en) * | 1966-12-02 | 1969-05-06 | Gen Electric | Mounting of blades in an axial flow compressor |
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