US870567A - Turbine. - Google Patents

Turbine. Download PDF

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Publication number
US870567A
US870567A US28559605A US1905285596A US870567A US 870567 A US870567 A US 870567A US 28559605 A US28559605 A US 28559605A US 1905285596 A US1905285596 A US 1905285596A US 870567 A US870567 A US 870567A
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Prior art keywords
buckets
jet
turbine
bucket
wheel
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US28559605A
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Wilhelm Loeh
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    • 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

Definitions

  • the subject of the present invention relates to a turbine in which the jet of water is deflected both in radial and axial direction in such a manner as to act simultaneously on more than one of the buckets of the turbine even if issuing from one nozzle only7 for the purpose oi diminishing as much as possible the loss of hydraulic power duc to the impact oi the jet.
  • the attached drawing is a perspective view of the wheel of such a turbine.
  • the buckets l are of the shape of half a truncated cone or funnel, the cone being bisected along its longitudinal axis, while the buckets 2 are of the shape oi halves of the buckets l, that is, a quarter of a cone, the openings at each end oi both buckets being in the radial plane of the wheel.
  • These buckets are so arranged on the periphery oi the wheel that one oi the half cones l alternates with a pair of the quarter cones 2, the latter being disposed side by side as shown in the ligure, so that their bases meet to form a wall 3 in the middle of the narrow end of the bucket l.
  • This wall is made as thin as possible to facilita-te the division of a jet of water flowing against it out of the bucket l.
  • the two sides of the buckets 2 forming the wall open out owing tothe narrowing of the buckets which are so disposed that their flat sides coincide with the edge oi' the wheel.
  • the water flows in a flat jet in a tangential direction into one of the buckets I, it is diverted radially and transformed into a jet of a semicircular section by the narrowing of the bucket, and further diversion in an axial direction takes place in consequence of the lateral pressure exerted by the narrowing sides of the bucket.
  • The' jet of water then iiows into the doublevbuckets 2, vbeing divided into two parts by the wall 3, and each half oi the jet undergoes the same radial and axial diversions as in the bucket l.
  • the power of the turbine can be increased (l) by increasing the number of nozzles, having regard however to the fact that as several buckets are traversed by the same jet there must be a certain distance between the nozzles, (2) by enlarging the periphery ofthe wheel and providing several buckets side by side so that the whole arrangement can be divided into a number of the simple turbines described, .each one being lprovided with a nozzle, which nozzles can be placed in a row.
  • a turbine Wheel comprising a rimy half cone buckets (l), and quarter cone buckets (2) mounted on the rim and arranged so that a half cone bucket follows a pair of quarter cone buckets.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Turbines (AREA)

Description

No. 870,567. PATENTED NOV. 12, 1907..
W. LH.
TURBINB.
.APPLIOATION FILED NOV. 2, 1905.
WM 72W WILHELM LE, oF EooHsT-oN-THE-MAIN, GERMANY.
TURBINE Speicaton of Letters Patent.
Patented Nov. 12, 1907.
Application filed November 2, 1905. Serial No. 285,596.
To all whom it may concern:
Be it known that I, WILHELM LH, a subject of the German Emperor7 and a resident of 3b Hauptstrasse, I-Ichst-on-the-Main, Germany, have invented certain new and useful Improvements Relating to Turbines, of which the following is a specification.
The subject of the present invention relates to a turbine in which the jet of water is deflected both in radial and axial direction in such a manner as to act simultaneously on more than one of the buckets of the turbine even if issuing from one nozzle only7 for the purpose oi diminishing as much as possible the loss of hydraulic power duc to the impact oi the jet.
The attached drawing is a perspective view of the wheel of such a turbine.
The buckets l are of the shape of half a truncated cone or funnel, the cone being bisected along its longitudinal axis, while the buckets 2 are of the shape oi halves of the buckets l, that is, a quarter of a cone, the openings at each end oi both buckets being in the radial plane of the wheel. These buckets are so arranged on the periphery oi the wheel that one oi the half cones l alternates with a pair of the quarter cones 2, the latter being disposed side by side as shown in the ligure, so that their bases meet to form a wall 3 in the middle of the narrow end of the bucket l. This wall is made as thin as possible to facilita-te the division of a jet of water flowing against it out of the bucket l. As will be seen in the figure, the two sides of the buckets 2 forming the wall, open out owing tothe narrowing of the buckets which are so disposed that their flat sides coincide with the edge oi' the wheel. Ii now the water flows in a flat jet in a tangential direction into one of the buckets I, it is diverted radially and transformed into a jet of a semicircular section by the narrowing of the bucket, and further diversion in an axial direction takes place in consequence of the lateral pressure exerted by the narrowing sides of the bucket. The' jet of water then iiows into the doublevbuckets 2, vbeing divided into two parts by the wall 3, and each half oi the jet undergoes the same radial and axial diversions as in the bucket l.
,When the water jet has passed through for example one of the buckets l ii its velocity still exceeds that of the circumference oi the wheel it is divided. into two jets as has been explained. These two jets after passing through the double buckets 2 come together again in the next bucket l and are made into one jet by the pressure of the narrowing sides of the bucket l. This is repeated until the velocity of the jet equals that of the circumference of the wheel, whereupon the water leaves the turbine in a tangential direction.
The power of the turbine can be increased (l) by increasing the number of nozzles, having regard however to the fact that as several buckets are traversed by the same jet there must be a certain distance between the nozzles, (2) by enlarging the periphery ofthe wheel and providing several buckets side by side so that the whole arrangement can be divided into a number of the simple turbines described, .each one being lprovided with a nozzle, which nozzles can be placed in a row.
What I claim as my invention and desire to secure by Letters Patent is.
A turbine Wheel comprising a rimy half cone buckets (l), and quarter cone buckets (2) mounted on the rim and arranged so that a half cone bucket follows a pair of quarter cone buckets.
In testimony whereof I have signed my name to this specication in the presence of two subscribing witnesses.
VILHELM LOH.
Witnesses CARL BUITSMLLER,
' JEAN GRUND.
US28559605A 1905-11-02 1905-11-02 Turbine. Expired - Lifetime US870567A (en)

Priority Applications (1)

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US28559605A US870567A (en) 1905-11-02 1905-11-02 Turbine.

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US28559605A US870567A (en) 1905-11-02 1905-11-02 Turbine.

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