US3824032A - Control apparatus for hydraulic machines - Google Patents

Control apparatus for hydraulic machines Download PDF

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Publication number
US3824032A
US3824032A US00234231A US23423172A US3824032A US 3824032 A US3824032 A US 3824032A US 00234231 A US00234231 A US 00234231A US 23423172 A US23423172 A US 23423172A US 3824032 A US3824032 A US 3824032A
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US
United States
Prior art keywords
blades
servomotors
arm
levers
control apparatus
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
Application number
US00234231A
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English (en)
Inventor
R Fasulati
S Budnikov
G Bronovsky
S Granovsky
G Schegolev
M Tsvetkov
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Individual
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Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to AT191072A priority Critical patent/AT321225B/de
Priority to GB1090772A priority patent/GB1322888A/en
Application filed by Individual filed Critical Individual
Priority to US00234231A priority patent/US3824032A/en
Priority to FR7214129A priority patent/FR2181201A5/fr
Application granted granted Critical
Publication of US3824032A publication Critical patent/US3824032A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/16—Stators
    • F03B3/18—Stator blades; Guide conduits or vanes, e.g. adjustable
    • F03B3/183—Adjustable vanes, e.g. wicket gates
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

Definitions

  • ABSTRACT Control apparatus for hydraulic pumps and reversible turbines, comprising adjustable vanes or blades and servomotors therefor, each blade being pivoted to a piston rod of a servomotor through the intermediary of a lever.
  • the casings of the servomotor are kinematically connected with respective adjacent blades. This connection is effected through the intermediary of double-armed levers, one arm thereof being connected to the piston rods of the associated servomotors, and the other arms to the casings of the servomotors of the respective adjacent blades.
  • the present invention relates to hydraulic machine building and more particularly to control apparatus for hydraulic machines.
  • a conventional guide apparatus comprises moving vanes or blades, the journal of each blade being rigidly connected to a lever. With the aid of a kinematic connecting means an arm of the lever is pivoted to an adjusting ring. With the ring turning, all the blades turn too.
  • the adjusting ring use is made of one, two or more straightaxial servomotors whose casings are rigidly secured to stationary parts of the turbine, such as the cover, stator, shaft, etc.
  • each moving blade is kinematically pivoted to the rod of its servomotor, namely through the intermediary of a lever.
  • the casing of the servomotor is hinged to stationary parts of the turbine, such as the cover, stator, shaft, etc.
  • An object of the present invention is to simplify the design of such a guide or control apparatus.
  • Another object of the present invention is to eliminate the forces acting upon the stationary parts of the hydraulic machine.
  • a task has been set to provide a central apparatus for hydraulic machines, in which the stationary parts are not subjected to reaction forces during the operation of the servomotors.
  • levers are double-arm levers, whose one arm is connected to the piston rod of the own servomotor and the other is connected to the casing of the servomotor of the adjacent blade.
  • This embodiment of a control or guide apparatus for hydraulic machines provides any absence of any power connection between the casings of the servomotors and the stationary parts, i.e. the servomotors become floating. All this results in a lower consumption of metal and labour. With the blade levers made as double-arm levers it is possible to obtain a pure torque which turns the blades without their journals being turned by the force of the levers.
  • the control apparatus built in accordance with the present invention is provided with servomotors which have no power connection with the stationary parts and in which the piston ares can be reduced to a half. This makes it possible to use only one servomotor for turning two adjacent vanes or blades, i.e. to reduce the number of the servomotors employed to half the number of the blades.
  • FIG. 1 shows schematically a top view of the inventive control apparatus
  • FIG. 2 is a view taken along arrow A of a double-arm lever shown in FIG. 1;
  • FIG. 3 is a partial section taken along line IIIIII of FIG. 1.
  • the guide apparatus for example of a hydraulic turbine, (FIGS. 1, 2) comprises vanes or blades 1 pivotable about shafts l2. Rigidly mounted on journals 2 of the blades are double-arm levers 3 (see FIG. 3). One arm of each lever 3 is pivoted at 3a to the casing of a servomotor 4, 4a. For better stabilization, preferably two levers 3 flank each servomotor, as shown in FIG. 2. The other arm of each lever 3 is pivoted through an axle 5 (FIG. 2) to a piston rod 6 of a servomotor of the adjacent blade 1.
  • FIG. 1 a hydraulic turbine
  • the end portions of the piston rod 6 of the servomotors 4, 4a are provided with threads and with nuts 10, which makes it possible to adjust the position of the point of connection of the rods 6 with the levers 3 of the respective adjacent blades 1 in the course of assembly. 7
  • This system comprises levers 11, mounted on the shafts 12 of blades 1 and connected with the double-arm levers 3 through shear pins 13. It should be noted that levers 3 are immovable with respect to the levers 11 on account of both shafts 12 and pins 13 passing through both levers.
  • pressurized oil is delivered into one of the spaces of the servomotors 4, 40 along the flexible hoses 8.
  • the forces that arises is transmitted via the rod 6 to one arm of the associated lever 3, whereas an equal, oppositely directed reaction force is transmitted through the casing of the servomotor at pivot 3a to the other arm of the lever 3 of the adjacent blade.
  • Blade turning is timed by levers 11 and adjustable strainers 14, 14a.
  • Levers ll are-connected with levers 3 by means of axles l2 and shear pins 13 which latter are the safety devices of the timing system.
  • the system takes up different forces of the individual servomotors. The differences are due to the differences in the hydraulic moments and the friction between individual blades 1. From blade to blade, this difference in moments may be equal to nearly percent. If a foreign body gets between the blades, a respective pin 13 is cut or broken by a shearing action, releasing the blade from the timing system, without affecting the synchronous operation of the other blades.
  • the levers, pins and strainers have adequate strengths. There is no inner wall to the right-hand side of the blades 1, as visible in the drawing.
  • the servomotors are extremely compact and can be easily manufactured.
  • a control apparatus for hydraulic machines comprising pivotable adjustable blades; servomotors for actuating said blades, provided with piston rods; controlled and synchronized link means connecting said blades to respective ones of said piston rods; housings for said servomotors, connected to adjacent ones of said biades by means of double-arm levers, wherein one arm in each double-arm lever is connected to respective ones of said piston rods while the other arm is connected to said housings of the adjacent blades.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Hydraulic Turbines (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Turbines (AREA)
US00234231A 1972-03-07 1972-03-13 Control apparatus for hydraulic machines Expired - Lifetime US3824032A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT191072A AT321225B (de) 1972-03-07 1972-03-07 Leitapparat einer Wasserkraftmaschine
GB1090772A GB1322888A (en) 1972-03-07 1972-03-09 Guide apparatus for hydraulic machines
US00234231A US3824032A (en) 1972-03-07 1972-03-13 Control apparatus for hydraulic machines
FR7214129A FR2181201A5 (ja) 1972-03-07 1972-04-21

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AT191072A AT321225B (de) 1972-03-07 1972-03-07 Leitapparat einer Wasserkraftmaschine
GB1090772 1972-03-09
US00234231A US3824032A (en) 1972-03-07 1972-03-13 Control apparatus for hydraulic machines
FR7214129A FR2181201A5 (ja) 1972-03-07 1972-04-21

Publications (1)

Publication Number Publication Date
US3824032A true US3824032A (en) 1974-07-16

Family

ID=27421646

Family Applications (1)

Application Number Title Priority Date Filing Date
US00234231A Expired - Lifetime US3824032A (en) 1972-03-07 1972-03-13 Control apparatus for hydraulic machines

Country Status (4)

Country Link
US (1) US3824032A (ja)
AT (1) AT321225B (ja)
FR (1) FR2181201A5 (ja)
GB (1) GB1322888A (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4210408A (en) * 1978-10-30 1980-07-01 Allis-Chalmers Corporation Eccentric pin positive locking device for hydraulic turbine wicket gates
US6397597B1 (en) * 1998-12-17 2002-06-04 Daimlerchrysler Ag Internal combustion engine having a turbocharger having variable turbine geometry
CN101984252A (zh) * 2010-11-25 2011-03-09 天津市天发重型水电设备制造有限公司 一种水轮机导水部套的传动机构
CN110524234A (zh) * 2019-07-31 2019-12-03 中国航发南方工业有限公司 调节导叶角度的工装、检测压气机导叶调节角度的方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3722253A1 (de) * 1987-07-06 1989-01-26 Kuehnle Kopp Kausch Ag Verstellvorrichtung eines radialverdichters
DE4309637A1 (de) * 1993-03-25 1994-09-29 Abb Management Ag Radialdurchströmte Abgasturboladerturbine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE848329C (de) * 1948-12-17 1952-09-04 English Electric Co Ltd Wasserturbine
US2746713A (en) * 1950-08-04 1956-05-22 Neyrpic Ets Distributor vane operating apparatus for hydraulic turbines
US3007628A (en) * 1958-04-03 1961-11-07 Allis Chalmers Mfg Co Control system for hydraulic machine guide vane damping brakes
FR1337456A (fr) * 1962-08-02 1963-09-13 Neyrpic Ets Perfectionnements aux dispositifs de réglage des turbines hydrauliques

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE848329C (de) * 1948-12-17 1952-09-04 English Electric Co Ltd Wasserturbine
US2746713A (en) * 1950-08-04 1956-05-22 Neyrpic Ets Distributor vane operating apparatus for hydraulic turbines
US3007628A (en) * 1958-04-03 1961-11-07 Allis Chalmers Mfg Co Control system for hydraulic machine guide vane damping brakes
FR1337456A (fr) * 1962-08-02 1963-09-13 Neyrpic Ets Perfectionnements aux dispositifs de réglage des turbines hydrauliques

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4210408A (en) * 1978-10-30 1980-07-01 Allis-Chalmers Corporation Eccentric pin positive locking device for hydraulic turbine wicket gates
US6397597B1 (en) * 1998-12-17 2002-06-04 Daimlerchrysler Ag Internal combustion engine having a turbocharger having variable turbine geometry
CN101984252A (zh) * 2010-11-25 2011-03-09 天津市天发重型水电设备制造有限公司 一种水轮机导水部套的传动机构
CN110524234A (zh) * 2019-07-31 2019-12-03 中国航发南方工业有限公司 调节导叶角度的工装、检测压气机导叶调节角度的方法

Also Published As

Publication number Publication date
AT321225B (de) 1975-03-25
GB1322888A (en) 1973-07-11
FR2181201A5 (ja) 1973-11-30

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