GB1252351A - Improvements in or relating to aerodynamic and hydrodynamic machines, such as compressors, turbines and the like - Google Patents

Improvements in or relating to aerodynamic and hydrodynamic machines, such as compressors, turbines and the like

Info

Publication number
GB1252351A
GB1252351A GB929869A GB929869A GB1252351A GB 1252351 A GB1252351 A GB 1252351A GB 929869 A GB929869 A GB 929869A GB 929869 A GB929869 A GB 929869A GB 1252351 A GB1252351 A GB 1252351A
Authority
GB
United Kingdom
Prior art keywords
blades
saw
radii
contour
integral
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
GB929869A
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.)
Individual
Original Assignee
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
Application filed by Individual filed Critical Individual
Publication of GB1252351A publication Critical patent/GB1252351A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/04—Blade-carrying members, e.g. rotors for radial-flow machines or engines
    • F01D5/043—Blade-carrying members, e.g. rotors for radial-flow machines or engines of the axial inlet- radial outlet, or vice versa, type
    • F01D5/048—Form or construction
    • 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
    • F03B3/12—Blades; Blade-carrying rotors
    • F03B3/121—Blades, their form or construction
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

1,252,351. Centrifugal compressors; turbines. F. BOURQUARD. Feb.20, 1969 [July 9, 1968], No.9298/69. Headings F1C and F1T. In a aerodynamic or hydrodynamic machine such as a compressor, turbine or the like comprising blades or vanes mounted so as to rotate about an axis and integral or rigid with at least one of two side plates limiting the fluid stream laterally the side plate or plates with which the blades are integral or rigid is or are provided with recessed and protruding portions serving to vary, at a constant radial distance from the axis of rotation, the spacing between the side plates along the angular extent of the space between each blade or vane and the next and to equalize the mass rate of flow of fluid in each channel by uniformly distributing it over the angular extent. The invention is described as applied to a centrifugal compressor comprising impeller blades 21, Figs. 6, 7a, 7b, 7c and 7d, extending between front and rear shrouds 22, 23; Figs.7a, 7b, 7c and 7d being developed sections at the respective radii R 1 , R 2 , R 3 and R 4 in Fig. 6. Between the radii R 1 and R 2 , the shrouds 22, 23 change from the smooth contour shown in Fig.7a to the saw-tooth contour shown in Figs.7b and 7c. If intermediate short blades 26 are provided, each saw-tooth splits into two saw-teeth between the radii R 3 and R 4 , as shown in Fig. 7d. These two saw-teeth may be different from one another, whereby channel 37 may be wider than channel 38. Between radii R 4 and R 5 , the contour changes back to a smooth form. The saw-tooth contour provides a greater width of inter-blade flow passage adjacent the pressure sides 24 of the blades then adjacent the suction sides 25. This renders the mass flow constant along the circumferential extent of each flow passage, whereby noise and pulsations are reduced and efficiency is increased. As shown, each shroud 22, 23 may be made in two parts 22a, 22b or 23a, 23 b, only the parts 22 b, 23b being machined to provide the required contour. At least some of the blades may be integral with at least one of the shrouds.
GB929869A 1968-07-09 1969-02-20 Improvements in or relating to aerodynamic and hydrodynamic machines, such as compressors, turbines and the like Expired GB1252351A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR158546A FR1587639A (en) 1968-07-09 1968-07-09 IMPROVEMENTS TO AERO- OR HYDRODYNAMIC MACHINES SUCH AS COMPRESSORS, TURBINES AND THE LIKE

Publications (1)

Publication Number Publication Date
GB1252351A true GB1252351A (en) 1971-11-03

Family

ID=8652318

Family Applications (1)

Application Number Title Priority Date Filing Date
GB929869A Expired GB1252351A (en) 1968-07-09 1969-02-20 Improvements in or relating to aerodynamic and hydrodynamic machines, such as compressors, turbines and the like

Country Status (2)

Country Link
FR (1) FR1587639A (en)
GB (1) GB1252351A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5551992A (en) * 1978-10-11 1980-04-16 Kubota Ltd Pump impeller
DE102015117470A1 (en) * 2015-10-14 2017-04-20 Atlas Copco Energas Gmbh Turbine wheel for a radial turbine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2609500B1 (en) * 1987-01-14 1991-04-12 Snecma TURBOMACHINE COMPRESSOR DISC WITH CENTRIPTIC ACCELERATOR FOR SUCTION OF TURBINE COOLING AIR
US5279396A (en) * 1990-11-09 1994-01-18 Labavia - Sge Brake rotor armature with air cooling fins having embedded inserts

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5551992A (en) * 1978-10-11 1980-04-16 Kubota Ltd Pump impeller
DE102015117470A1 (en) * 2015-10-14 2017-04-20 Atlas Copco Energas Gmbh Turbine wheel for a radial turbine

Also Published As

Publication number Publication date
FR1587639A (en) 1970-03-27

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees