US883404A - Steam-turbine. - Google Patents

Steam-turbine. Download PDF

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Publication number
US883404A
US883404A US40759107A US1907407591A US883404A US 883404 A US883404 A US 883404A US 40759107 A US40759107 A US 40759107A US 1907407591 A US1907407591 A US 1907407591A US 883404 A US883404 A US 883404A
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Prior art keywords
turbine
disk
casing
disks
steam
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US40759107A
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Per Johan Hedlund
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    • 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
    • F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
    • F01D1/24—Non-positive-displacement machines or engines, e.g. steam turbines characterised by counter-rotating rotors subjected to same working fluid stream without intermediate stator blades or the like
    • F01D1/28—Non-positive-displacement machines or engines, e.g. steam turbines characterised by counter-rotating rotors subjected to same working fluid stream without intermediate stator blades or the like traversed by the working-fluid substantially radially

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Turbines (AREA)

Description

No.883,404., PATENTED MAR. 31, 1908.- P41. HEDLUND.
STEAM TURBINE.
APPLICATION FILED DEG-21,1907.
. J Milky 1n: NORRIS PETERS ca. wasnmcrmv, 0. cv
PER .IOHAN HEDLUND, OF STOGKHOLM, SWEDEN.
. STEAM-TURBINE.
Specification of Letters Patent.
Patented March 31, 1908.
Application filed December 21, 1907. Serial No. 407,591.
To all whom "it may concern:
Be it known that I, PER J OHAN HEDLUND, engineer, subject of Sweden, residing at Jarla, Stockholm, Sweden, have invented new and useful Improvements in Steam or Gas Turbines, of which the following is a specification.
The present invention relates to steam or gas turbines of the kind, in which the turbine disk and the turbine casing rotate in opposite directions.
The invention consists in the construction of the turbine casing and its combination with the turbine disk, as more particularly pointed out in the claims.
The drawing is a vertical transverse section of my'improved turbine.
The turbine casing is formed in two parts, each part comprising a disk and a substantially convex shell 6 connected thereto. The disk 4 forms a wall of one part, and the disk 9 a wall of the other part, these disks being disposed facing one another and separated by a space in which is placed the turbine disk 1. On one face of'said disk 1 are concentric circular rows of buckets 3, and on the opposing face of disk 4 are similar concentric rows of buckets which enter between and alternate with the bucket rows on disk 1. The parts of the casing are connected by threaded flanged rings 8 bolted to the disks 4 and 9 in which rings are openings for the exhaust. The hollow shaft 7 which may be integral with disk 4, is threaded on its periphcry to receive a correspondingly threaded hub on the shell 6 of the casing. The other part of the casing has a hub extending through it, through which passes the shaft 2 which carries the turbine disk 1. The disks 4 and 9 are connected to the casing shells 6 by bolts 10 and between said disks and shells are stay plates 12 some of which may be provided with sleeves 11 to receive said bolts.
In operation, the motor fluid enters as shown by the arrows through the hollow shaft 7 and passes between the buckets in a direction radial to the turbine disk and finally exhausts at the openings in rings 8; the casing and the turbine disk 1 then rotating in o posite directions.
The f dregoing construction permits of the casing walls be1ng made thin and the whole casing structure is rendered rigid and comparatively light.
I claim:
1. In an elastic fluid turbine, a turbine disk, and a casing for said turbine disk formed in two parts each part comprising a disk and a shell connected thereto.
2. In an elastic fluid turbine, a turbine disk and a casing formed in two parts each part comprising a disk, a shell connected to said disk and internal stay plates connected to said shell and disk.
3. In an elastic fluid turbine, two shafts disposed end to end, a turbine disk carried by one of said shafts, and a casing carried by the other shaft: the said casing being formed in two parts, each comprising a shell and a disk connected thereto, the said disks receiving the turbine disk between them.
4. In an elastic fluid turbine, a turbine disk, a casing completely inclosing said disk, bucket rings on a face of said disk and on the opposing face of said casing, a hollow shaft carrying said casing and a shaft carrying said turbine disk and journaled in said casing the said shafts being placed end to end.
5. In an elastic fluid turbine, an inclosing casing formed in two parts, each part comprising a disk and a shell connected thereto, a shaft supporting said casing, a turbine disk interposed between said casin disks and a shaft carrying said turbine d1sk;the said turbine disk and one of the casin disks havin concentric alternately dispose rings of buc ets on their opposing faces.
6. In an elastic fluid turbine, an inclosing casing formed in two parts, each part comprising a disk and a shell connected thereto, means for connecting said disks at their circumferential peripheries, a shaft supporting said casing, a turbine disk interposed be tween said casing andv a shaft carrying said turbine disk; the said turbine disk and one of the casing disks having concentric alternately disposed rings of buckets on their opposing faces.
In testimony whereof I have signed my name to this specification in the presence of two subscribin witnesses.
P R JOHAN HEDLUND.
Witnesses:
WARDEMAN BoMAN, HJALMAR ZETTERsTRoM.
US40759107A 1907-12-21 1907-12-21 Steam-turbine. Expired - Lifetime US883404A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1975946A1 (en) 2007-03-29 2008-10-01 Fry's Metals Inc. Devices & methods for producing & using electrical conductors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1975946A1 (en) 2007-03-29 2008-10-01 Fry's Metals Inc. Devices & methods for producing & using electrical conductors

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