US2304993A - Steam turbine apparatus - Google Patents

Steam turbine apparatus Download PDF

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Publication number
US2304993A
US2304993A US398901A US39890141A US2304993A US 2304993 A US2304993 A US 2304993A US 398901 A US398901 A US 398901A US 39890141 A US39890141 A US 39890141A US 2304993 A US2304993 A US 2304993A
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wall
steam
rods
steam chest
bar
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US398901A
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Clarence C Franck
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CBS Corp
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Westinghouse Electric and Manufacturing Co
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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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • F01D25/26—Double casings; Measures against temperature strain in casings
    • 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
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • 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
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86928—Sequentially progressive opening or closing of plural valves

Definitions

  • the invention relates to steamturbines hav ing cylinder constructions including inner and outer spaced walls with a steam chest carried by the inner wall and provided with governoroperated valves for controlling the flow of steam therefrom to desired nozzle groups and it has for an-object to provide valves and an operating arrangement thereof assuring of seating of the valves asintended without interference on account of expansion and contraction effects.
  • a turbine having a cylinder construction including inner and outer walls with a steam chest carried by the inner wall is old.
  • the nozzle control valves-Within the steam chest havebeen operated by means of stems extending through the inner and outer walls. Differential expansion or contraction may result in binding of the valve stems or disturbanceof seating of the valves.
  • a more particular object of the invention is to provide valves inthe steam chest with operating mechanism thereforcomp'rising a bar within the steam chest for lifting and lowering the valves, rods or links extending through the steam chest wall and connected to the bar, and a link or links extending through the outer wall for governor operation and connected to the first links in the space between the inner and outer walls so that the valves maybe operated in the desired manner without interference on account of expansion or contraction efiects.
  • the figure is a longitudinal sectional view of a turbine incorporating the improvement.
  • a steam turbine comprising a rotor, at In, and a cylinder construction, at H, comprising outer and inner walls i2 and I3 separated by the steamspace M.
  • the turbine includes an initial stage having a plurality of nozzle groups IS.
  • a wall I! integral with the inner wall l3 cooperates'with the latter to provide a steam chest l3 from which steam is supplied by nozzle passages It to the nozzle groups.
  • Steam is supplied to the steam chest by means of one or more conduits 20 extending through the outer wall l2 and the steam chest wall ll, attached to the outer wall, and having a steamtight slipjoint connection '2lwith respect'to the steam chest Wall.
  • Valve seats *22 disposed internally of the steam chest provide entrances for the nozzle passages I9 and valves 23-cooperate with the seats.
  • the valves '23 are operated bymeansincluding inner and outer rods "24 and 25 extending through the steam chest and outer walls and so connected that normal guided movement thereof and desired operation of the valves may be maintained irrespective of thermal effects.
  • the inner cylinder wall has parallel and cylindrical guide openings 26 and the steam chest wall has parallel and cylindrical guide openings 2'! aligned with the first openings.
  • the outer wall has cylindrical guide openings 28 parallel to each otherand to the aligned openings 26 and 21.
  • the inner rods 24 closely fit the aligned pairs of openings 26 and 21' and are guided for movement by the latter. Similarly, the outer rods fit and are guided by the openings 28.
  • the inner rods 24 are preferably'connected to abar 29 having openings through which valve stems 30 loosely extend, the stems having abutments 3
  • a bar33 having openings 34 and 35 through which the inner and outer rods 24 and 25 extend.
  • Theouter rods 25 have abutments 36 and 31 cooperating with the bar above and below the latter so that the rods and thebar may be raised and lowered together.
  • the inner rods 24 have abutments 39 above the bar 33 providing for lifting of therods .by the bar and the bar is free to be'lowered relatively to the rods 'when'the latter 'reach their innermost positions.
  • the openings 34 and '35 for the inner and outer rods are larger than the'latter and the upper ends of the openings Mare countersunk to provide spherical seats 40 for spherical lowerfaces dllformedon the abutments 39. Therefore, the bar 33 operatively connects theinner and outer rods so that the outer rods may move out of parallelism or be displaced' relatively to the inner rods without affecting the guided movements thereof. Furthermore, contraction andexpansion of the bar 33 may occur without any effect on the rods.
  • a cylinder construction including spaced inner and outer walls, a wall integral with the inner wall and cooperating therewith to provide a steam chest, means extending through an outer wall and the steam chest wall for supplying steam to the steam chest, said cylinder construction having nozzle passages opening into the steam I chest for supplying steam from the latter to the nozzle groups, valves within the steam chest for controlling the flow of steam from the latter to the nozzle passages, means for operating the valves including rods extending through the steam chest wall, one or more operating rods extending through the outer Wall, and means in the space between the outer wall and the steam chest wall'for connecting the first rods and the operating rod or rods and providing for relative displacements thereof.
  • a cylinder construction including spaced inner and outer walls, a wall integral with the inner wall and cooperating therewith to provide a steam chest, means extending through an outer wall and the steam chest wall for supplying steam to the steam chest, said cylinder construction having nozzle passages opening into the steam chest for supplying steam from the latter to the nozzle groups, valves within the steam chest for controlling the flow of steam from the latter to the nozzle passages, said steam chest wall and outer wall having a plurality of parallel and cylindrical guide openings extending therethrough, inner rods extending through the steam chest wall guide openings and operatively connected to the valves, outer rod or rods extending through the outer wall guide opening or openings, and means in the space between the outer wall and the steam chest wall for connecting the inner and outer rods and providing for relative displacements thereof.
  • a cylinder construction including spaced inner and outer walls, a wall integral with the inner wall and cooperating therewith to'provide a steam chest, means ex.- tending through an outer wall and the steam chest wall for supplying steam to the steam chest, said cylinder construction having nozzle passages opening into the steam chest for supplying steam from the latter to the nozzle groups, valves within the steam chest for controlling the flow of steam from the latter to the nozzle passages, means for operating the valves including rods extending through the steam chest wall, one or more operating rods extending through the outer wall, a bar in the space between the outer wall and the steam chest wall and having openings through which the inner and outer rods extend, the openings being larger than the rods, abutments carried by the outer rods for engagement with the upper and lower sides of the bar, and abutments carried by the inner rods for engagement by the upper side of the bar.
  • a cylinder construction including spaced inner and outer walls, a wall integral with the inner wall and cooperating therewith to provide a steam chest, means extending through an outer wall and the steam chest wall for supplying steam to the steam chest, said cylinder construction having nozzle passages opening into the steam chest for supplying steam from the latter to the nozzle groups, valves within the steam chest for controlling the flow of steam from the latter to the nozzle passages, means for operating the valves including rods extending through the steam chest wall, one or more operating rods extending through the outer wall, a bar in the space between the outer wall and the steam chest wall and having openings through which the inner and outer rods extend, the openings being larger than the rods, abutments carried by the outer rods for engagement with the upper and lower sides of the bar and abutments carried by the inner rods for engagement by the upper side of the bar, the upper ends of the bar openings for the inner rods being countersunk to provide spherical
  • a cylinder construction includin spaced inner and outer walls and a wall integral with the inner wall and cooperating therewith to provide a steam chest; means for supplying steam to the steam chest and comprising a conduit extending through the outer and steam chest walls, rigidly attached to the outer wall, and having a steamtight slip-jointconnection with respect to the steam chest wall; said cylinder construction having nozzle passages opening into the steam chest and supplying steam from the latter to the nozzle groups; valves within the steam chest for controlling the flow of steam therefrom to the nozzle passages; an inner bar within the steam chest and arranged above the valves; stems connected to the respective Valves and extending upwardly therefrom; abutments carried by each stem for cooperation with the bar so that lifting and lowering of the latter may be utilized to eifect opening and closing of the valves; an outer bar disposed above the first bar and located in the space between the inner and outer walls; links connecting the first and second bars and extending through the
  • a cylinder construction including spaced inner and outer walls and a wall integral with the inner wall and cooperating therewith to provide a steam chest; means for supplying steam to the steam chest and comprising a conduit extending through the outer and steam chest walls, rigidly attached to the outer wall, and having a steamtight slip-joint connection with respect to the steam chest wall; said cylinder construction having nozzle passages opening into the steam chest and supplying steam from the latter to the nozzle groups; valves within the steam chest for controlling the flow of steam therefrom to the nozzle passages; an inner bar within the steam chest and arranged above the valves; stems connected to the respective valves and extending upwardly therefrom; abutments carried by each stem for cooperating with the bar so that lifting and lowering of the latter may be utilized to effect opening and closing of the valves; an outer bar disposed above the first bar and located in the space between the inner and outer walls; said inner wall and the steam chest wall having aligned cylindrical guide opening
  • a cylinder construction including spaced inner and outer walls and a wall integral with the inner wall and cooperating therewith to provide a steam chest; means for supplying steam to the steam chest and comprising a conduit extending through the outer and steam chest walls, rigidly attached to the outer wall, and having a steamtight slip-joint connection with respect to the steam chest wall; said cylinder construction having nozzle passages opening into the steam chest and supplying steam from the latter to the nozzle groups; valves within the steam chest for controlling the flow of steam therefrom to the nozzle passages; an inner bar within the steam chest and arranged above the valves; stems connected to the respective valves and extending upwardly therefrom; abutments carried by each stem for cooperating with the bar so that lifting and lowering of the latter may be utilized to effect opening and closing of the valves; an outer bar disposed above the first bar and located in the space between the inner and outer walls; said inner wall and the steam chest wall having aligned cylindrical guide opening

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

Description

Dec. 1942- c. c. FRANCK 2,304,993
STEAM TURBINEAPPARATUS Filed June 20, 1941 WITNESSES:
INVENTOR )Mjkvn m I u CLRgfNCE ClFhnncn.
WAAVL AITORNEY Patented Dec. 15, 1942 STEAM TURBINE APPARATUS Clarence C. Franck, Swarthmore, Pa., assignor to -Westinghouse Electric & Manufacturing. Com- .pany,.-East,Pittsburgh, Pa., a corporation of Pennsylvania Application June 20, 1941, Serial No. 398,901
7 Claims.
The invention relates to steamturbines hav ing cylinder constructions including inner and outer spaced walls with a steam chest carried by the inner wall and provided with governoroperated valves for controlling the flow of steam therefrom to desired nozzle groups and it has for an-object to provide valves and an operating arrangement thereof assuring of seating of the valves asintended without interference on account of expansion and contraction effects.
A turbine having a cylinder construction including inner and outer walls with a steam chest carried by the inner wall is old. Heretofore, with such an arrangement, the nozzle control valves-Within the steam chest havebeen operated by means of stems extending through the inner and outer walls. Differential expansion or contraction may result in binding of the valve stems or disturbanceof seating of the valves. Accordingly, a more particular object of the invention is to provide valves inthe steam chest with operating mechanism thereforcomp'rising a bar within the steam chest for lifting and lowering the valves, rods or links extending through the steam chest wall and connected to the bar, and a link or links extending through the outer wall for governor operation and connected to the first links in the space between the inner and outer walls so that the valves maybe operated in the desired manner without interference on account of expansion or contraction efiects.
These and other objects are effected by the invention as will be apparent from the following description and claims taken in connection with the accompanying drawing forming a part of this application, in which:
The figure is a longitudinal sectional view of a turbine incorporating the improvement.
In the drawing, there is shown a steam turbine comprising a rotor, at In, and a cylinder construction, at H, comprising outer and inner walls i2 and I3 separated by the steamspace M. The turbine includes an initial stage having a plurality of nozzle groups IS.
A wall I! integral with the inner wall l3 cooperates'with the latter to provide a steam chest l3 from which steam is supplied by nozzle passages It to the nozzle groups. Steam is supplied to the steam chest by means of one or more conduits 20 extending through the outer wall l2 and the steam chest wall ll, attached to the outer wall, and having a steamtight slipjoint connection '2lwith respect'to the steam chest Wall. Valve seats *22 disposed internally of the steam chest provide entrances for the nozzle passages I9 and valves 23-cooperate with the seats.
The valves '23 are operated bymeansincluding inner and outer rods "24 and 25 extending through the steam chest and outer walls and so connected that normal guided movement thereof and desired operation of the valves may be maintained irrespective of thermal effects. As shown, there are two parallel rods or links 24 and two parallel rods orlinks 25. The inner cylinder wallhas parallel and cylindrical guide openings 26 and the steam chest wall has parallel and cylindrical guide openings 2'! aligned with the first openings. The outer wall has cylindrical guide openings 28 parallel to each otherand to the aligned openings 26 and 21. The inner rods 24 closely fit the aligned pairs of openings 26 and 21' and are guided for movement by the latter. Similarly, the outer rods fit and are guided by the openings 28.
Within the steam chest, the inner rods 24 are preferably'connected to abar 29 having openings through which valve stems 30 loosely extend, the stems having abutments 3| and 32 below and above thebar and spaced so that, it the bar is raised and lowered, the valves may be opened and closed in desired sequence. In the space between the outer wall and the steam chest wall, there is providedmeans for connecting the inner and outer rodsand accommodating for differential expansion and contraction without. affecting the operation. Preferably, such means is comprised by a bar33 having openings 34 and 35 through which the inner and outer rods 24 and 25 extend. Theouter rods 25 have abutments 36 and 31 cooperating with the bar above and below the latter so that the rods and thebar may be raised and lowered together. The inner rods 24 have abutments 39 above the bar 33 providing for lifting of therods .by the bar and the bar is free to be'lowered relatively to the rods 'when'the latter 'reach their innermost positions.
The openings 34 and '35 for the inner and outer rods are larger than the'latter and the upper ends of the openings Mare countersunk to provide spherical seats 40 for spherical lowerfaces dllformedon the abutments 39. Therefore, the bar 33 operatively connects theinner and outer rods so that the outer rods may move out of parallelism or be displaced' relatively to the inner rods without affecting the guided movements thereof. Furthermore, contraction andexpansion of the bar 33 may occur without any effect on the rods.
From the foregoing, it will be apparent that expansion and contraction of the cy inder structure and of parts of the valve-operating mechanism may occur without affecting the operativeness of the latter or disturbing the seating of the valves. By having separate links extending through the outer and steam chest walls and connecting the links by means providing for relative lateral and angular displacement thereof and in itself capable of displacement laterally of the rods, difierential contraction and expansion of the cylinder structure and parts of the operating mechanism may occur without disturbing seating of the valves or causing binding of the rods in their guide openings.
While the invention has been shown in but one form, it will be obvious to those skilled in the art that it is not so limited, but is susceptible of various changes and modifications without departing from the spirit thereof, and it is desired, therefore, that only such limitations shall be placed thereupon as are specifically set forth in the appended claims.
What is claimed is:
1. In a steam turbine turbine having an impulse stage including groups of nozzles, a cylinder construction including spaced inner and outer walls, a wall integral with the inner wall and cooperating therewith to provide a steam chest, means extending through an outer wall and the steam chest wall for supplying steam to the steam chest, said cylinder construction having nozzle passages opening into the steam I chest for supplying steam from the latter to the nozzle groups, valves within the steam chest for controlling the flow of steam from the latter to the nozzle passages, means for operating the valves including rods extending through the steam chest wall, one or more operating rods extending through the outer Wall, and means in the space between the outer wall and the steam chest wall'for connecting the first rods and the operating rod or rods and providing for relative displacements thereof.
2. In a steam turbine having an impulse stage including groups of nozzles, a cylinder construction including spaced inner and outer walls, a wall integral with the inner wall and cooperating therewith to provide a steam chest, means extending through an outer wall and the steam chest wall for supplying steam to the steam chest, said cylinder construction having nozzle passages opening into the steam chest for supplying steam from the latter to the nozzle groups, valves within the steam chest for controlling the flow of steam from the latter to the nozzle passages, said steam chest wall and outer wall having a plurality of parallel and cylindrical guide openings extending therethrough, inner rods extending through the steam chest wall guide openings and operatively connected to the valves, outer rod or rods extending through the outer wall guide opening or openings, and means in the space between the outer wall and the steam chest wall for connecting the inner and outer rods and providing for relative displacements thereof.
3. In a steam turbine having an impulse stage including groups of nozzles, a cylinder construction including spaced inner and outer walls, a wall integral with the inner wall and cooperating therewith to'provide a steam chest, means ex.- tending through an outer wall and the steam chest wall for supplying steam to the steam chest, said cylinder construction having nozzle passages opening into the steam chest for supplying steam from the latter to the nozzle groups, valves within the steam chest for controlling the flow of steam from the latter to the nozzle passages, means for operating the valves including rods extending through the steam chest wall, one or more operating rods extending through the outer wall, a bar in the space between the outer wall and the steam chest wall and having openings through which the inner and outer rods extend, the openings being larger than the rods, abutments carried by the outer rods for engagement with the upper and lower sides of the bar, and abutments carried by the inner rods for engagement by the upper side of the bar.
4. In a steam turbine having an impulse stage including groups of nozzles, a cylinder construction including spaced inner and outer walls, a wall integral with the inner wall and cooperating therewith to provide a steam chest, means extending through an outer wall and the steam chest wall for supplying steam to the steam chest, said cylinder construction having nozzle passages opening into the steam chest for supplying steam from the latter to the nozzle groups, valves within the steam chest for controlling the flow of steam from the latter to the nozzle passages, means for operating the valves including rods extending through the steam chest wall, one or more operating rods extending through the outer wall, a bar in the space between the outer wall and the steam chest wall and having openings through which the inner and outer rods extend, the openings being larger than the rods, abutments carried by the outer rods for engagement with the upper and lower sides of the bar and abutments carried by the inner rods for engagement by the upper side of the bar, the upper ends of the bar openings for the inner rods being countersunk to provide spherical seats and the lower faces of the abutments of the inner rods being spherical and fitting the seats.
5. In a steam turbine having an impulse stage including groups of nozzles, a cylinder construction includin spaced inner and outer walls and a wall integral with the inner wall and cooperating therewith to provide a steam chest; means for supplying steam to the steam chest and comprising a conduit extending through the outer and steam chest walls, rigidly attached to the outer wall, and having a steamtight slip-jointconnection with respect to the steam chest wall; said cylinder construction having nozzle passages opening into the steam chest and supplying steam from the latter to the nozzle groups; valves within the steam chest for controlling the flow of steam therefrom to the nozzle passages; an inner bar within the steam chest and arranged above the valves; stems connected to the respective Valves and extending upwardly therefrom; abutments carried by each stem for cooperation with the bar so that lifting and lowering of the latter may be utilized to eifect opening and closing of the valves; an outer bar disposed above the first bar and located in the space between the inner and outer walls; links connecting the first and second bars and extending through the steam chest wall; and one or more operating links connected to the second bar and extending through the outerwall.
6. In a steam turbine having an impulse stage including groups of nozzles, a cylinder construction including spaced inner and outer walls and a wall integral with the inner wall and cooperating therewith to provide a steam chest; means for supplying steam to the steam chest and comprising a conduit extending through the outer and steam chest walls, rigidly attached to the outer wall, and having a steamtight slip-joint connection with respect to the steam chest wall; said cylinder construction having nozzle passages opening into the steam chest and supplying steam from the latter to the nozzle groups; valves within the steam chest for controlling the flow of steam therefrom to the nozzle passages; an inner bar within the steam chest and arranged above the valves; stems connected to the respective valves and extending upwardly therefrom; abutments carried by each stem for cooperating with the bar so that lifting and lowering of the latter may be utilized to effect opening and closing of the valves; an outer bar disposed above the first bar and located in the space between the inner and outer walls; said inner wall and the steam chest wall having aligned cylindrical guide openings and said outer wall having cylindrical guide openings parallel to each other and to the first openings; inner rods fitting said aligned guide openings, connected to the inner bar, and extending through openings formed in the outer bar; outer rods fitting the outer wall guide openings and extending through openings formed in the outer bar; abutments carried by the outer rods for engagement with the upper and lower sides of the outer bar; and abutments carried by the inner rods for engagement by the upper side of the outer bar; said openings in the outer bar for the rods being larger than the latter.
7. In a steam turbine having an impulse stage including groups of nozzles, a cylinder construction including spaced inner and outer walls and a wall integral with the inner wall and cooperating therewith to provide a steam chest; means for supplying steam to the steam chest and comprising a conduit extending through the outer and steam chest walls, rigidly attached to the outer wall, and having a steamtight slip-joint connection with respect to the steam chest wall; said cylinder construction having nozzle passages opening into the steam chest and supplying steam from the latter to the nozzle groups; valves within the steam chest for controlling the flow of steam therefrom to the nozzle passages; an inner bar within the steam chest and arranged above the valves; stems connected to the respective valves and extending upwardly therefrom; abutments carried by each stem for cooperating with the bar so that lifting and lowering of the latter may be utilized to effect opening and closing of the valves; an outer bar disposed above the first bar and located in the space between the inner and outer walls; said inner wall and the steam chest wall having aligned cylindrical guide openings and said outer wall having cylindrical guide openings parallel to each other and to the first openings; inner rods fitting said aligned guide openings, connected to the inner bar, and extending through openings formed in the outer bar; outer rods fitting the outer wall guide openings and extending through openings formed in the outer bar; abutments carried by the outer rods for engagement with the upper and lower sides of the outer bar; and abutments carried .by the inner rods for engagement by the upper side of the outer bar; said openings in the outer bar for the rods being larger than the latter, the upper ends of the openings for the inner rods being countersunk to provide spherical seats, and the abutments of the latter rods having spherical faces fitting the seats.
. CLARENCE C. FRANCK.
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2527445A (en) * 1947-06-02 1950-10-24 Westinghouse Electric Corp Turbine steam supply connection
US2625167A (en) * 1947-01-02 1953-01-13 Honeywell Regulator Co Linkage manually operable to shift the set point of one or two control instruments
US2633291A (en) * 1946-10-25 1953-03-31 Dresser Operations Inc Centrifugal machine
US2713351A (en) * 1952-06-26 1955-07-19 Gen Electric Restoring linkage for hydraulic servomechanism of turbine valve gear
US2733611A (en) * 1956-02-07 Turbine valve actuating gear
US2978223A (en) * 1959-02-02 1961-04-04 Westinghouse Electric Corp Turbine apparatus
DE1107243B (en) * 1959-01-09 1961-05-25 Westinghouse Electric Corp Steam turbine with a flexible shaft
US4276237A (en) * 1979-08-01 1981-06-30 Standard-Thomson Corporation Carburetor air control device
US4936002A (en) * 1989-04-03 1990-06-26 Westinghouse Electric Corp. Method of modifying integral steam chest steam turbines
US20100178153A1 (en) * 2007-06-08 2010-07-15 Walter Gehringer Turbine Having Compact Inflow Housing Thanks to Internal Control Valves

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733611A (en) * 1956-02-07 Turbine valve actuating gear
US2633291A (en) * 1946-10-25 1953-03-31 Dresser Operations Inc Centrifugal machine
US2625167A (en) * 1947-01-02 1953-01-13 Honeywell Regulator Co Linkage manually operable to shift the set point of one or two control instruments
US2527445A (en) * 1947-06-02 1950-10-24 Westinghouse Electric Corp Turbine steam supply connection
US2713351A (en) * 1952-06-26 1955-07-19 Gen Electric Restoring linkage for hydraulic servomechanism of turbine valve gear
DE1107243B (en) * 1959-01-09 1961-05-25 Westinghouse Electric Corp Steam turbine with a flexible shaft
US2978223A (en) * 1959-02-02 1961-04-04 Westinghouse Electric Corp Turbine apparatus
US4276237A (en) * 1979-08-01 1981-06-30 Standard-Thomson Corporation Carburetor air control device
US4936002A (en) * 1989-04-03 1990-06-26 Westinghouse Electric Corp. Method of modifying integral steam chest steam turbines
US20100178153A1 (en) * 2007-06-08 2010-07-15 Walter Gehringer Turbine Having Compact Inflow Housing Thanks to Internal Control Valves

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