GB881407A - Improvements in or relating to hydraulic impulse turbines - Google Patents

Improvements in or relating to hydraulic impulse turbines

Info

Publication number
GB881407A
GB881407A GB4537/58A GB453758A GB881407A GB 881407 A GB881407 A GB 881407A GB 4537/58 A GB4537/58 A GB 4537/58A GB 453758 A GB453758 A GB 453758A GB 881407 A GB881407 A GB 881407A
Authority
GB
United Kingdom
Prior art keywords
spiral
casing
wall
towards
axis
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
Application number
GB4537/58A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TECHNICA ETS
Original Assignee
TECHNICA ETS
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
Application filed by TECHNICA ETS filed Critical TECHNICA ETS
Publication of GB881407A publication Critical patent/GB881407A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F03B1/00—Engines of impulse type, i.e. turbines with jets of high-velocity liquid impinging on blades or like rotors, e.g. Pelton wheels; Parts or details peculiar thereto
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Centrifugal Separators (AREA)

Abstract

881,407. Hydraulic turbines. TECHNICA ETABLISSEMENT. Feb. 12, 1958 [Feb. 13, 1957], No. 4537/58. Class 110 (3). An hydraulic turbine comprises a spiral casing provided with a central annular aperture directed towards the casing axis and lying in a central cylindrical wall of the casing, the space within the central annular aperture being free from any obstructing elements which might thwart a bi-lateral flowing of the working medium and a turbine wheel with bi-lateral discharge disposed with its inlet edges in front of the central annular aperture, the spiral casing having an unobstructed interior and the central portions of the central cylindrical wall, adjacent the annular aperture, being arranged to converge towards each other and towards the axis of the spiral casing and to be provided with sharp edges. The spiral flow is produced by a casing. Fig. 1, having a spiral outer wall 1 and a cylindrical inner wall 2 having as its longitudinal axis, the axis of the spiral casing. The wall 2 is formed of two opposed cylindrical portions, the inner parts 3 of which converge towards each other and towards the axis of the spiral casing. The angle between the parts 3 as measured from inside of the casing may be from 90 to 180 degrees. The side walls 4 are flat. The inner side walls 5 together with the inner wall parts 3 are movable towards each other to regulate the output of the turbine. The flow from the annular jet impinges on a bi-lateral bucket-wheel as claimed in Specification 856,281 in which the buckets 26, 27, Fig. 5, open alternately towards opposite axial sides of the wheel. Throttle flaps 32 are provided in the outlet channels and walls 33 are provided to break up or prevent any regular flow. In a modification, Fig. 6 (not shown), the flow is controlled by a spiral band attached to the outer spiral wall at one end and displaceable relatively to it at the other. This band is connected to a rotatable cylindrical member having a thread on its exterior surface which carries the lower edge of the annular orifice. To prevent fouling of the space between the band and the spiral casing and between the walls 4, 5, an opening is provided in the spiral band or the wall 5. The nozzle mouth may be kept free from fouling by one or more rods penetrating into the central annular aperture and rotatable about the axis A-A. A jet deflector may be inserted between the annular aperture and the inlet edges of the turbine wheel for control purposes. The spiral casing may be provided with external stiffening ribs.
GB4537/58A 1957-02-13 1958-02-12 Improvements in or relating to hydraulic impulse turbines Expired GB881407A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT881407X 1957-02-13

Publications (1)

Publication Number Publication Date
GB881407A true GB881407A (en) 1961-11-01

Family

ID=3682681

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4537/58A Expired GB881407A (en) 1957-02-13 1958-02-12 Improvements in or relating to hydraulic impulse turbines

Country Status (1)

Country Link
GB (1) GB881407A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4499731A (en) * 1981-12-09 1985-02-19 Bbc Brown, Boveri & Company, Limited Controllable exhaust gas turbocharger
US4571154A (en) * 1983-06-29 1986-02-18 Bbc Brown, Boveri & Company, Limited Device for adjusting the turbine inlet flow cross-section of an exhaust gas turbocharger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4499731A (en) * 1981-12-09 1985-02-19 Bbc Brown, Boveri & Company, Limited Controllable exhaust gas turbocharger
US4571154A (en) * 1983-06-29 1986-02-18 Bbc Brown, Boveri & Company, Limited Device for adjusting the turbine inlet flow cross-section of an exhaust gas turbocharger

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