US976260A - Turbine. - Google Patents

Description

G. E. HICKS.

TURBINE. v APPLICATION FILED M14, 1900. nmmwnn APR. 12, 1910.

Patented m; 22, 1910.

" 2 mums-sum 1.

ATTORNEY G. E. HICKS.

v TURBINE. v APPLIUATIOH FILED APRA, 1908. RENEWED APR. 12, 1910.

976,260. Patented Nov.22, 1910.

2, SHEETS-SHEET INVENTOR Mwam By snares rarnnr or IE. HICKS, 0F MECHA'Jl 'iTlt-CQVILLE, NEW YORK.

TURBINE.

Application filed' To all whom it may'concem:

Be it known that 1, CHARLES E. Hrcns, citizen of the United States of America, residing at Mechanicsville, Saratoga county, New York, have invented certain new and useful Improvements in Turbines, of which the following is a specification.

The present invention relates to the class of turbines described and illustrated in my co-pending application for United States Letters Patent #343279 filed Nov. 13th,1906.

My present application relates especially to the form and construction of the rotor blades, and to the form and construction of the walls which define the motive-fluid expansion-passages between the several series of rotors in the turbine.

lit is my purpose to avoid all reaction of the motive fluid in its passage through the several turbine stages and also to avoid formation of eddies adjacent the rotor and construction and relative arrangement stator parts. These several pur oses I accomplish by the construction a out to be described.

A practical embodiment of the invention is illustrated in the accompanying drawing, wherein- Figure 1 is a perspective view of a turbine showing the upper half of the casing raised and Fig. 2 is a diagram, illustrative of tht;g

the rotor and stator parts.

According to my invention I employ a base 1 upon which is securely mounted by any suitable means an exterior shell or casing 2, having at one end a steam chamber 3 and at its opposite end an exhaust chamber a. The steam chamber and exhaust chambe are divided from the interior of the stator by suitable walls, 5 and 6, respectively. The interior surface of the shell 2 is provided with a series of inwardly projecting transversely arranged ribs 7 spaced apart to afford paths for the rotor or rotary elements of the turbine to revolve.

. Bearing in the casing 2 is the turbine shaft 8 which carries a plurality of rings 9 whereon are suitably held as by a key or in any other convenient manner the rotory elements which comprise upper and lower rings 10, 11, having therebetween and preferabl integral therewith the rotor blades 12 eac of which (as will be seen upon reference to Fig. 2) has the form of a half-lune, the small or thin end of each blade being arranged at Specification of Letters Eatent.

through the turbine.

Patented Nov, 22, 19M}.

April 4, 1908, Serial N0. l25,204=. Renewed April 12, 1910; Serial No. 555,099. 2

part of the blade being arranged at the enhaust side of the rotor.

Formed-in the ribs 7 of the stator are expansion passage ways 13, the shape of which is determined by equidistantly arranged substantially ogee-shaped walls 14:, the small end of each ogee-wall beingadjacent the exhaust side of its preceding rotor element and the widest part of the ogee-wall. being adjacent the intake side of its next succeeding rotor element, it being also noted that the width of the ogee-wall at its wide end corresponds precisely to the distance or space between two rotor blades at their thin ends. In 7 tion the distance between any two of the said ogee-walls at their wide parts is equivalent to three spaces between four rotor blades at their intake ends.

In Fig. 2 the extended arrow line P shows the course followed by the steam or other motive agent employed in its passage lhe steam enters one of the nozzles N passing at a tangent into or through the rotor element, then expanding in a tangential direction between two walls of the stator element, then passing at a tangent through the next adjacent rotor element and so on through the several turbine stages constantly in a spiral course and progressively expanding.

The'turbine above described acts entirely upon the impact or impulse principle and by the novel construction of rotor blades and stator walls, all reaction of the motive fluid is avoided, and as a'co'nsequence the loss of such fluid is minimized.

By. the present construction no impediments to the steam passage are present and the full elfect of the velocity of the steam is employed to produce power and efficiency.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. In a turbine, the combination with a stator having inwardly extending passaged ribs, of a series of rotor elements provided with half-lune-shaped blades.

2. In a turbine, the combination with a stator having inwardly extending passaged ribs, of a series of rotor elements provided with half-lune-shaped blades,

ends of said blades forming the intake, side and the widest parts of said blades forming said rotor elements.

the exhaust side of the intake sideof the rotor and the widest 3. In a turbine,

the combination with a the smaller stator having inwardy extending ribs and passages therethrough formed between substantially ogee-shaped walls, of a plurality of rotor elements adapted to revolve between said flanges.

4:. In a turbine, the combination with a stator having inwardly extendin ribs through which passages are formed %efined by substantially ogee-shaped walls, of a plurality of rotor elements adapted to revolve between said flanges, each said rotor element comprising a rin or dlsk carryin a plurality of half-lun shaped blades.

5. In a turbine, the combination with a stator having inwardly extendin ribs through which passages are formed efined by substantially ogee-shaped-walls, of a plurality of rotor elements adapted to revolve between said flanges, each said rotor element comprising a ring or disk carrying a plurality of ha-lf-lune-shaped blades, the smaller ends of said blades forming the intake side of the -rotor and the wider ends of said blades forming the exhaust side of said rotor.

6. In a turbine, the combination with a stator having passages formed. therein defined by substantially ogee-shaped walls, of

the wide parts of two of said ogee-walls cor-,

responding precisely with' three spaces between four rotor blades at their intake ends.

8. In a turbine, the combination with a stator having passages formed therein defined by substantially ogee sha ed walls, of a rotor adapted to revolve in re at-ion to said walls, the width of each said wall at its wide end corresponding exactly to the distance or space between two rotor blades at their thin ends.

In testimony whereof I have aflixed my signature in presence of two witnesses.

, CHARLES E. -HICKS.

Witnesses: 1 I

' O'r'ro MUNK, 'CLARISSA. FRANCE.-

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