US743869A - Elastic-fluid turbine-wheel. - Google Patents

Elastic-fluid turbine-wheel. Download PDF

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Publication number
US743869A
US743869A US15499403A US1903154994A US743869A US 743869 A US743869 A US 743869A US 15499403 A US15499403 A US 15499403A US 1903154994 A US1903154994 A US 1903154994A US 743869 A US743869 A US 743869A
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Prior art keywords
wheel
elastic
fluid turbine
recesses
fluid
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US15499403A
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Per Johan Hedlund
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    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors

Definitions

  • the invention relates to an elastic-fluid turbine-wheel and to an improved mode of securing the buckets therein.
  • Figure 1 shows a portion of the wheel periphery in cross-section on the line wzrof- Fig. 2.
  • Fig. 2 is a section of the same on the line y'y of Fig. 1.
  • a and B represent the wheel-heads, which at the circumference of the wheel are inwardly inclined to form a contracted annular outlet-opening O.
  • O annular outlet-opening
  • each wheel-head and on the inner side are milled recesses the bottoms of which form straight'and relatively parallel walls. Said recesses are also inclined to radii of the wheel, as shown in Fig. 1.
  • buckets D have their outer portions with pan 'allel longitudinal edges E to enter said recesses and their inner portions F curved.
  • screw-bolts Gare inserted at right angles to Serial No. 154,994. (No model.)

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Tires In General (AREA)

Description

PATENTED NOV. 10, 1903.
.1. J. HEDLUND. ELASTIC FLUID TURBINE WHEEL.
AIPLIOATION FILED APR. 30, 1903.
H0 MODEL INVENTOR fltmazvv MZu/AOL WTN ESSES UNITED STATES Iatented November 10, 1903.
PATENT OFFICE.
ELASTlC-FLUID TU RBlN E-WHEEL. 4
SPECIFICATION forming part of Letters Patent No. 743,869, dated November 10, 1903.
Application filed April 30, 1903.
To all whom it may concern.-
Be it known that I, PER J CHAN HEDLUND, of Stockholm, Sweden, have invented a new and usefullmprovementin Elastic-Fluid Turblue-Wheels, of which the following is a specification.
The invention relates to an elastic-fluid turbine-wheel and to an improved mode of securing the buckets therein.
In the accompanying drawings, Figure 1 shows a portion of the wheel periphery in cross-section on the line wzrof- Fig. 2. Fig. 2 is a section of the same on the line y'y of Fig. 1.
Similar letters of reference indicate like parts.
A and B represent the wheel-heads, which at the circumference of the wheel are inwardly inclined to form a contracted annular outlet-opening O. In each wheel-head and on the inner side are milled recesses the bottoms of which form straight'and relatively parallel walls. Said recesses are also inclined to radii of the wheel, as shown in Fig. 1. The
buckets D have their outer portions with pan 'allel longitudinal edges E to enter said recesses and their inner portions F curved. In order to secure said buckets in said recesses, screw-bolts Gare inserted at right angles to Serial No. 154,994. (No model.)
bine-wheel inwardly inclined at the periphcry to form a contracted annular outlet and having recesses on their inner sides provided with straight and relatively parallel walls, a bucket having its straight longitudinal edges inserted in saidrecesses and bolts in said wheel-heads passing transversely through said buckets.
In"testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.
PER JOHAN HEDLUN D.
I Witnesses:
I. A. VAN WART, WM. H. SIEGMAN.
US15499403A 1903-04-30 1903-04-30 Elastic-fluid turbine-wheel. Expired - Lifetime US743869A (en)

Priority Applications (1)

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US15499403A US743869A (en) 1903-04-30 1903-04-30 Elastic-fluid turbine-wheel.

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US15499403A US743869A (en) 1903-04-30 1903-04-30 Elastic-fluid turbine-wheel.

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US743869A true US743869A (en) 1903-11-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5707209A (en) * 1996-10-11 1998-01-13 Penn Ventilator Co., Inc. Centrifugal ventilator fan

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5707209A (en) * 1996-10-11 1998-01-13 Penn Ventilator Co., Inc. Centrifugal ventilator fan

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