US2457327A - Turbine wheel - Google Patents

Turbine wheel Download PDF

Info

Publication number
US2457327A
US2457327A US640528A US64052846A US2457327A US 2457327 A US2457327 A US 2457327A US 640528 A US640528 A US 640528A US 64052846 A US64052846 A US 64052846A US 2457327 A US2457327 A US 2457327A
Authority
US
United States
Prior art keywords
hub
turbine wheel
blades
side plates
slots
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
US640528A
Inventor
Philip H Stevenson
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
Priority to US640528A priority Critical patent/US2457327A/en
Application granted granted Critical
Publication of US2457327A publication Critical patent/US2457327A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F03B1/02—Buckets; Bucket-carrying rotors
    • 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
    • F01D1/02—Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor, e.g. multi-bladed impulse steam turbines
    • F01D1/026—Impact turbines with buckets, i.e. impulse turbines, e.g. Pelton turbines
    • 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

  • the object of this invention is to so construct a turbine wheel that it will be simple, cheap and light, while at the same time the blades are so attached to the hub that they will resist the action of centrifugal force and its tendency to disrupt the turbine Wheel when it is run at extremely high speeds.
  • a turbine wheel so constructed has been turned at a very high speed Without showing any tendency to disruption.
  • Figure 1 shows the turbine wheel with one of the side plates removed and the blades exposed.
  • Figure 2 shows the turbine wheel complete with the side plates in place.
  • Figures 3, 4 and 5 are edge views of the central hub and the side plates.
  • Figure 6 is an edge view of the turbine Wheel assembled.
  • Figure 7 is an elevation of a portion of the hub, enlarged, with a blade set therein.
  • the body or hub 8 is, preferably, made of steel.
  • the hub is fitted with shaft 9 and the side plates it] which are of a larger diameter than said hub.
  • suitable grooves for the reception of one end of the blades or buckets l I.
  • the blades are brazed, soldered or otherwise suitably bonded to both the hub and the side plates.
  • a nozzle l2 serves to guide steam, compressed air or other suitable compressed gas or liquid to buckets H.
  • the buckets ll may be first seated in the angular grooves of the hub, above described, and brazed, soldered, or otherwise suitably secured to the hub 3.
  • the side plates H) are then positioned against the side faces of the hub and the side edges of the buckets ll.
  • These side plates are secured to the hub sides and bucket edges in any suitable manner, as by brazing, soldering, or the like.
  • the buckets II at their outer edges may extend to the periphery of the side plates I0, whereby the buckets II are supported at three edges by the hub 8 and the two side plates ID.
  • the particular feature of this turbine wheel is that the slots for the reception of one end of the blades II are cut in the hub 8 at an angle to the radii of the hub as indicated, the better to resist the centrifugal force in its tendency to throw the blades from the hub. It should be noted that the blades are held in place by bonding them to both the hub and the side plates.
  • the blades as shown, approximate the shape of the letter N with that portion of the N of V form, extending from the hub 8. That side of the blade extension serving as the hollow or inner side of the V is presented to the impact of the gas or liquid stream.
  • a turbine wheel comprising a hub, side plates secured to both side faces of said hub, said side plates being of larger diameter than said hub, and a series of blades secured to the periphery of said hub and to both of said side plates, said hub having slots parallel to the axis thereof, and at an angle to the respective radii of the hub, and the inner ends of said blades being engaged in said slots, the impact receiving surfaces of said blades being constituted by two plane surfaces parallel to the axis thereof and at an angle to the axis of said hub and at an angle to each other.
  • a turbine wheel comprising a hub; side plates secured to both side faces of said hub, said side plates being of larger diameter than said hub, a series of slots in said hub parallel to the axis thereof and at an angle to the respective radii of the hub, a series of blades of N shape, each of said blades having one leg of the N inserted in one of said slots, the extending portions of said blades constituting the impact receiving surfaces being secured to both of said side plates.
  • a device in which both extending portions of each' N are disposed at angles to the respective radii of the hub.
  • a turbine wheel comprising a hub, side plates secured to both side faces of said hub, said side plates being of larger diameter than said hub, a series of slots in said hub parallel to the axis thereof and at an angle to the respective radii of the hub, a series of blades of N shape, each of said blades having one leg of the N inserted in one of said slots, the extending portions of said blades constituting the impact receiving surfaces.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Description

P. H. STEVENSON ,4
TURBINE WHEEL Filed Jan. 11, 1946 INVENTOR (fa/1% Al.
Patented Dec. 28, 1948 UNITED STATES PATENT OFFICE 4 Claims.
The object of this invention is to so construct a turbine wheel that it will be simple, cheap and light, while at the same time the blades are so attached to the hub that they will resist the action of centrifugal force and its tendency to disrupt the turbine Wheel when it is run at extremely high speeds. To prove the value of the construction hereinafter described it may be averred that a turbine wheel so constructed has been turned at a very high speed Without showing any tendency to disruption.
I attain my object by constructing the turbine Wheel as shown in the accompanying drawings in which Figure 1 shows the turbine wheel with one of the side plates removed and the blades exposed. Figure 2 shows the turbine wheel complete with the side plates in place. Figures 3, 4 and 5 are edge views of the central hub and the side plates. Figure 6 is an edge view of the turbine Wheel assembled. Figure 7 is an elevation of a portion of the hub, enlarged, with a blade set therein.
In the figures the several parts are designated by numerals as follows: similar numerals referring to similar parts throughout the several views:
The body or hub 8 is, preferably, made of steel. The hub is fitted with shaft 9 and the side plates it] which are of a larger diameter than said hub. Into the hub are cut, at an angle to a tangent to the hub radii, suitable grooves for the reception of one end of the blades or buckets l I. The blades are brazed, soldered or otherwise suitably bonded to both the hub and the side plates. A nozzle l2 serves to guide steam, compressed air or other suitable compressed gas or liquid to buckets H.
In assembling the turbine wheel of my invention, the buckets ll may be first seated in the angular grooves of the hub, above described, and brazed, soldered, or otherwise suitably secured to the hub 3. The side plates H) are then positioned against the side faces of the hub and the side edges of the buckets ll. These side plates are secured to the hub sides and bucket edges in any suitable manner, as by brazing, soldering, or the like. As will be clear from a study of the drawings, the buckets II at their outer edges may extend to the periphery of the side plates I0, whereby the buckets II are supported at three edges by the hub 8 and the two side plates ID.
The particular feature of this turbine wheel is that the slots for the reception of one end of the blades II are cut in the hub 8 at an angle to the radii of the hub as indicated, the better to resist the centrifugal force in its tendency to throw the blades from the hub. It should be noted that the blades are held in place by bonding them to both the hub and the side plates. The blades, as shown, approximate the shape of the letter N with that portion of the N of V form, extending from the hub 8. That side of the blade extension serving as the hollow or inner side of the V is presented to the impact of the gas or liquid stream.
I claim:
1. A turbine wheel comprising a hub, side plates secured to both side faces of said hub, said side plates being of larger diameter than said hub, and a series of blades secured to the periphery of said hub and to both of said side plates, said hub having slots parallel to the axis thereof, and at an angle to the respective radii of the hub, and the inner ends of said blades being engaged in said slots, the impact receiving surfaces of said blades being constituted by two plane surfaces parallel to the axis thereof and at an angle to the axis of said hub and at an angle to each other.
2. A turbine wheel comprising a hub; side plates secured to both side faces of said hub, said side plates being of larger diameter than said hub, a series of slots in said hub parallel to the axis thereof and at an angle to the respective radii of the hub, a series of blades of N shape, each of said blades having one leg of the N inserted in one of said slots, the extending portions of said blades constituting the impact receiving surfaces being secured to both of said side plates.
3. A device according to claim 2 in which both extending portions of each' N are disposed at angles to the respective radii of the hub.
l. A turbine wheel comprising a hub, side plates secured to both side faces of said hub, said side plates being of larger diameter than said hub, a series of slots in said hub parallel to the axis thereof and at an angle to the respective radii of the hub, a series of blades of N shape, each of said blades having one leg of the N inserted in one of said slots, the extending portions of said blades constituting the impact receiving surfaces.
PHILIP H. STEVENSON.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 968,862 Ljungstrom Aug. 30, 1910 1,063,331 Dake June 3, 1913 1,063,537 Hall June 3, 1913 1,217,282 Dake et a1. Feb. 27, 1917 1,292,038 Phillip Jan. 21, 1919 1,331,110 Hutchens Feb. 17, 1920 1,388,686 Zaugg Aug. 23, 1921 FOREIGN PATENTS Number Country Date 14,885 Great Britain June 19, 1897 422,352 Great Britain Jan. 10, 1935
US640528A 1946-01-11 1946-01-11 Turbine wheel Expired - Lifetime US2457327A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US640528A US2457327A (en) 1946-01-11 1946-01-11 Turbine wheel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US640528A US2457327A (en) 1946-01-11 1946-01-11 Turbine wheel

Publications (1)

Publication Number Publication Date
US2457327A true US2457327A (en) 1948-12-28

Family

ID=24568617

Family Applications (1)

Application Number Title Priority Date Filing Date
US640528A Expired - Lifetime US2457327A (en) 1946-01-11 1946-01-11 Turbine wheel

Country Status (1)

Country Link
US (1) US2457327A (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189714885A (en) * 1897-06-19 1898-05-07 James Mcallister Improvements in Rotary Motors.
US968862A (en) * 1910-02-19 1910-08-30 Ljungstroms Augturbin Ab Vane-ring for turbines.
US1063331A (en) * 1912-06-12 1913-06-03 Pyle Nat Electric Headlight Co Turbine-bucket.
US1063537A (en) * 1912-12-02 1913-06-03 Arthur C Hall Engine.
US1217282A (en) * 1913-08-04 1917-02-27 Pyle Nat Electric Headlight Co Turbine.
US1292038A (en) * 1917-05-18 1919-01-21 Peter Phillip Turbine-engine.
US1331110A (en) * 1919-04-12 1920-02-17 Hutchens William Art Sectional overshot water-wheel
US1388686A (en) * 1920-04-16 1921-08-23 Zaugg William Gate-operating mechanism for water-wheels
GB422352A (en) * 1933-07-10 1935-01-10 Stone J & Co Ltd Improvements in and connected with the blading of turbine bucket wheels

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189714885A (en) * 1897-06-19 1898-05-07 James Mcallister Improvements in Rotary Motors.
US968862A (en) * 1910-02-19 1910-08-30 Ljungstroms Augturbin Ab Vane-ring for turbines.
US1063331A (en) * 1912-06-12 1913-06-03 Pyle Nat Electric Headlight Co Turbine-bucket.
US1063537A (en) * 1912-12-02 1913-06-03 Arthur C Hall Engine.
US1217282A (en) * 1913-08-04 1917-02-27 Pyle Nat Electric Headlight Co Turbine.
US1292038A (en) * 1917-05-18 1919-01-21 Peter Phillip Turbine-engine.
US1331110A (en) * 1919-04-12 1920-02-17 Hutchens William Art Sectional overshot water-wheel
US1388686A (en) * 1920-04-16 1921-08-23 Zaugg William Gate-operating mechanism for water-wheels
GB422352A (en) * 1933-07-10 1935-01-10 Stone J & Co Ltd Improvements in and connected with the blading of turbine bucket wheels

Similar Documents

Publication Publication Date Title
US1433995A (en) Turbine motor
US2918254A (en) Turborunner
US2501614A (en) Compressor construction
US2497151A (en) Multidisk rotor
US3661475A (en) Turbomachinery rotors
US4102600A (en) Moving blade ring of high circumferential speed for thermal axially passed through turbines
US3749520A (en) Centrifugal compressor blading
US3128939A (en) Szydlowski
US2457327A (en) Turbine wheel
KR930702616A (en) Fluid Energy Inverter
WO1990002265A1 (en) Partial height blades in a compressor impeller
US2717554A (en) Fluid machine rotor and stator construction
US3962789A (en) Dental handpiece
RU2585180C1 (en) Screw
US4863350A (en) Air turbine
US3053505A (en) Pinned blade shrouding
US4284278A (en) Flying toy
US2423634A (en) Compressor
US2962206A (en) Centrifugal compressor for a gas turbine engine
US2838871A (en) Sounding toy
US1452602A (en) Turbine-blade fastening
GB724074A (en) Improvements in blade structures as may be employed in axial flow compressors
US1781165A (en) Centrifugal fan
US2995338A (en) Bladed rotors for compressors, turbines and the like
US3053437A (en) Turbo-fan rotor hub