US1713173A - Method of manufacturing nozzle diaphragms, turbine wheels, and the like - Google Patents
Method of manufacturing nozzle diaphragms, turbine wheels, and the like Download PDFInfo
- Publication number
- US1713173A US1713173A US174050A US17405027A US1713173A US 1713173 A US1713173 A US 1713173A US 174050 A US174050 A US 174050A US 17405027 A US17405027 A US 17405027A US 1713173 A US1713173 A US 1713173A
- Authority
- US
- United States
- Prior art keywords
- partition
- members
- turbine wheels
- nozzle
- base plate
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/006—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass turbine wheels
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49316—Impeller making
- Y10T29/4932—Turbomachine making
- Y10T29/49323—Assembling fluid flow directing devices, e.g., stators, diaphragms, nozzles
Definitions
- the present invention relates to the manufacture of articles comprising a plurality of partition members arranged and held between two holding members, and is particularlyapplicable to the manufacture of turbine diaphragms and turbine wheels, although it is not necessarily limited thereto.
- the object of the invention is to provide an improved method whereby such articles can be manufactured at a low cost but at the same time with a high degree of accuracy
- Fig. 1 is a transverse sectional view illustrating parts used in carrying out my invention
- Fig. 2' is a development of a sectional view through the nozzle partition members shown in Fig. 1
- Fig. 3 is. a top plan view partly broken away of the parts shown in Fig. 1
- Fig. 4 is a radial, sectional view on a larger scale.
- a base plate 5 which forms a fixture for use in carrying outmy invention, and an inner ring 6, an outer ring 7 and a suitable num- 3o ber of nozzle partitions 8 which form the nozzle diaphragm.
- Baseplate 5 is circular and is provided with an annular raised portion 9 on its top face, having a flat top surface of a width equal substantially to the length of the nozzle partitions and an inner diameter such that inner ring 6 fits inside of it.
- the annular raised portion is'of a height such that it serves to correctly po sition the discharge edges 10 of the partition members 8.
- the partition members 8 may have perfectly smooth ends and hence may be cut from strips of stock of the desired cross section, which strips may be made by drawing the strip material through suitable dies. This means that the partition members may be manufactured at a low cost.
- I provide the inner ring member 6 in its peripheral face with a series of circumferentially-spaced holes 11 adapted to receive pins 12, the holes being spaced apart so as to position correctly the admission ends of the partition members 8 relatively to each other. Also, I provide the partition membrazing, soldering or thelike.
- the ring member 6 forms the web or central portion of a nozzle diaphragm and the ring member 7 forms the rim of a nozzle diaphragm.
- I can utilize inner ring members and outer ring members requiring no specially shaped finishing. This reduces very materially the cost of manufacture. .At the same time, however, a strong and accurately dimensioned product will result.
- a struc ture comprising a plurality of partition elements held between. two annular carrying members which comprises placing the inner annular carrying member on a base plate, assembling partition elements individually in' spaced relation around the periphery of said inner carrying member by supporting ner annular carrying member on abase plate, assembling partition elements individually in spaced relation around the periphery of said inner carrying member with their lower edges resting on the base plate to position them correctly angularly, shrinking the outer annular carrying member around the outer ends of the partition elements, and then removing the structure from the plate and uniting it permanently by fusion of metal.
- the method of manufacturing a nozzle diaphragm which comprises placing an in-
Description
y 1929. E. D. DICKINSON 1,713, 73
METHOD OF MANUFACTURING NOZZLE DIAPHRAGMS,
TURBINE WHEELS, AfiD THE LIKE Filed March 9, 192'! Edgar-.22 .D/bK/mon,
' a ttorney.
jnvenol: I
Patented May 14, "1929.
- UNITED STATES I 1,713,173 PATENT OFFICE.
EDGAR D. DICKINSON, or BEVERLY, MASSACHUSETTS, ASSIGNOR To GENERAL EL C- TRIO COMPANY, A CORPORATION OF NEw YORK. 7
METHOD or MANUFACTURING NozzLE DIAIE'HRAGMS, TURBINE WHEELS, AND THE LIKE.
Application filed Marchl), 1927. Serial No. 174.050.
The present invention relates to the manufacture of articles comprising a plurality of partition members arranged and held between two holding members, and is particularlyapplicable to the manufacture of turbine diaphragms and turbine wheels, although it is not necessarily limited thereto.
The object of the invention is to provide an improved method whereby such articles can be manufactured at a low cost but at the same time with a high degree of accuracy,
and for a consideration of what I believe to be novel and my invention, attention is dirooted to the accompanying description and the claims appended thereto.
In the drawing, Fig. 1 is a transverse sectional view illustrating parts used in carrying out my invention; Fig. 2' is a development of a sectional view through the nozzle partition members shown in Fig. 1; Fig. 3 is. a top plan view partly broken away of the parts shown in Fig. 1; and Fig. 4 is a radial, sectional view on a larger scale.
In carrying out my invention in'connection with the manufacture of a nozzle diaphragm for elastic fluid turbines, I provide a base plate 5 which forms a fixture for use in carrying outmy invention, and an inner ring 6, an outer ring 7 and a suitable num- 3o ber of nozzle partitions 8 which form the nozzle diaphragm. Baseplate 5 is circular and is provided with an annular raised portion 9 on its top face, having a flat top surface of a width equal substantially to the length of the nozzle partitions and an inner diameter such that inner ring 6 fits inside of it. The annular raised portion is'of a height such that it serves to correctly po sition the discharge edges 10 of the partition members 8. The partition members 8 may have perfectly smooth ends and hence may be cut from strips of stock of the desired cross section, which strips may be made by drawing the strip material through suitable dies. This means that the partition members may be manufactured at a low cost.
I provide the inner ring member 6 in its peripheral face with a series of circumferentially-spaced holes 11 adapted to receive pins 12, the holes being spaced apart so as to position correctly the admission ends of the partition members 8 relatively to each other. Also, I provide the partition membrazing, soldering or thelike.
bers-8 in one end with. holes 13 adaptedto rece ve pins 12.
In assembling the structure, I first place inner ring 6 on base plate 5 as shown in Fig. 1, after which I assemble around it the partition members 8, each partition member bcmg supported at what is then its upper end by a pin 12, the discharge ends 10 of the nozzle partitions resting on raised portion 9; The partition members are assembled entirely around inner ring 6. This assembling operation can be carried out quickly and with relatively unskilled labor since the nozzle partitions are definitely positioned by pins 12 and the top surface of raised portions 9. In this connection, I consider the use of a flat surface, such as the surface of raised member 9, for positioning the edges 10' of the nozzle partitions as being a partieu larly advantageous feature of my invention, since it provides a very simple and easy means for getting'all the edges evenand correctly spaced- Pins 12 fit tightly enough inholes 11 and 13 to hold the members 9, but
After, the structure has been united by "fusion of metal it may be then' finished to the desired contour. In the present instance, the ring member 6 forms the web or central portion of a nozzle diaphragm and the ring member 7 forms the rim of a nozzle diaphragm.
The application of my invention to the manufacture of bucket wheels for turbines and other similar structures will be under stood readily from the foregoing description. In the ease of turbine wheels, fluid-directing elements in the form of buckets will replace the fluid-directing elements in the form of nozzle partitions in the structure described.
It will be seen that by the use of my invention I am enabled to use fluiddirecting elements, that is, turbine nozzle partitions or the like, which require no special shaping or finishing on the ends; andthat, likewise,
I can utilize inner ring members and outer ring members requiring no specially shaped finishing. This reduces very materially the cost of manufacture. .At the same time, however, a strong and accurately dimensioned product will result.
In accordance with the provisions of the patent statutes, I have described the principle of operation of my invention, together with the particular method which I now consider to represent the bestmanner for carrying it out, but I desire to have it understood that the particular method disclosed is only illustrative and that the invention may be carried out with such modifications as come within the scope of the appended claims. P
What I claim as new, and desire to secure by Letters Patent of the United States, is:
1. The method of manufacturinga structure comprising a plurality of partition elements held between two annular carrying members which comprises placing the inner annular carrying member on a base plate,
ssembling partition elements individually in spaced relation around the periphery of said inner carrying member with their lower edges resting on the base plate to position them correctly angularly, and then shrinle ing the outer annular carrying member around the outer ends of the partition elements.
2. The method of manufacturing a struc ture comprising a plurality of partition elements held between. two annular carrying members which comprises placing the inner annular carrying member on a base plate, assembling partition elements individually in' spaced relation around the periphery of said inner carrying member by supporting ner annular carrying member on abase plate, assembling partition elements individually in spaced relation around the periphery of said inner carrying member with their lower edges resting on the base plate to position them correctly angularly, shrinking the outer annular carrying member around the outer ends of the partition elements, and then removing the structure from the plate and uniting it permanently by fusion of metal.
4. The method of manufacturing a structure comprising a plurality of partition elements held between two annular carrying members which comprises placing the inner annular carrying member on a base plate, assembling partition elements individually in spaced relation around the periphery of said inner carrying memberrby supporting their upper edges on pins, the lower edges resting on the base plate to position them correctly angularly, shrinking the enter an nular carrying member around the outer ends of the partition elements, and then removing the structure from the baseplate and uniting it permanently by fusion of metal.
The method of manufacturing a nozzle diaphragm which comprises placing an in-
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US174050A US1713173A (en) | 1927-03-09 | 1927-03-09 | Method of manufacturing nozzle diaphragms, turbine wheels, and the like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US174050A US1713173A (en) | 1927-03-09 | 1927-03-09 | Method of manufacturing nozzle diaphragms, turbine wheels, and the like |
Publications (1)
Publication Number | Publication Date |
---|---|
US1713173A true US1713173A (en) | 1929-05-14 |
Family
ID=22634587
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US174050A Expired - Lifetime US1713173A (en) | 1927-03-09 | 1927-03-09 | Method of manufacturing nozzle diaphragms, turbine wheels, and the like |
Country Status (1)
Country | Link |
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US (1) | US1713173A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2691812A (en) * | 1949-04-11 | 1954-10-19 | Packard Motor Car Co | Method of forming fluid turbine elements and the like |
US3072381A (en) * | 1960-05-09 | 1963-01-08 | Werkspoor Nv | Nozzle or guide blade supporting structure with nozzles or guide blades for a turbine and method for assembling such parts |
US4827588A (en) * | 1988-01-04 | 1989-05-09 | Williams International Corporation | Method of making a turbine nozzle |
CN101936193A (en) * | 2009-06-30 | 2011-01-05 | 上海电气电站设备有限公司 | Method for manufacturing integral nozzle block of large-sized steam turbine |
-
1927
- 1927-03-09 US US174050A patent/US1713173A/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2691812A (en) * | 1949-04-11 | 1954-10-19 | Packard Motor Car Co | Method of forming fluid turbine elements and the like |
US3072381A (en) * | 1960-05-09 | 1963-01-08 | Werkspoor Nv | Nozzle or guide blade supporting structure with nozzles or guide blades for a turbine and method for assembling such parts |
US4827588A (en) * | 1988-01-04 | 1989-05-09 | Williams International Corporation | Method of making a turbine nozzle |
CN101936193A (en) * | 2009-06-30 | 2011-01-05 | 上海电气电站设备有限公司 | Method for manufacturing integral nozzle block of large-sized steam turbine |
CN101936193B (en) * | 2009-06-30 | 2013-07-10 | 上海电气电站设备有限公司 | Method for manufacturing integral nozzle block of large-sized steam turbine |
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