US 951162 A
Description (OCR text may contain errors)
c. WEDEKIND. CENTRIPUGAL APPARATUS FOR OOMPRESSI NG AND PROPELLING FLUIDS.
APPLICATION FILED AUG. 14, 1906.
Patented Mar. 8, 1910.
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WI T/VESSES /v V! 70 P Mia 0. WEDEKIND. GENTBIFUGAL APPARATUS FOR GOMPRESSING AND PROPELLING FLUIDS. APPI IOATION FILED AUG. 14, 1906.
' Patented Mar. 8, 1910.
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UNITED STATES PATENT oFF c CARLO WEDEKIND, OF ST. JEAN-SURFMER,- FRANCE.
To all whom it may concern:
Be it known that I, CARLO WEDEKIND, civil engineer, subject of the Emperor of Germany, residing at St. J ean-sur-Her,
Alpes-Maritimes, in France, have inventednew and useful Improvements in Centrifugal Apparatus for Compressing and Propelling Fluids, of which the following is a specification.
This invention relates to an improved centrifugal compressor and propeller and its purpose is to allow of. obtaining, by means of a single independent machine, gas pressure or liquid-pressure of'a very much higher value than can be obtained by means of ordinary centrifugal apparatus.
The invention is illustrated in the annexed drawings in which 7 I J Figure 1 is a horizontal section of the apparatus and Fig. 2 a vertical section on the line A B C D of Fig. 1. Fig. 3 represents a portion of one of the turbine-wheels on a larger scale, and Fig. 4 a portion of the end of a. shaft belonging to the right-hand side of the apparatus as seen in Fig. 1. Fig. 5 is a section of part of a water-jacket or casing which may be .provided for the purpose of cooling the fluid.
The centrifugal compressor comprises two parallel shafts a .and b.- To the shaft (1, is
fixed a series of centrifugal turbine-wheels. T, T T and to the-shaft vb a series of turbine-wheels t, 25 Theshafts a and b are driven with equal speeds, and only one of ,them need be directly coupled to, the motor, the other shaft being in that case connected to the directly driven shaft by means of gear-wheels, a belt and pulleys, or other suitable mechanism.
The manner in which the turbine-wheels are fixed to the shafts is as follows. Each turbine-wheel comprises a body which is in part tubular and the other part of which is hollowed out to form, with cheeks g, a series of ducts f. The tubular part or hub of each turbine-wheel surrounds the respective shaft and is'provided.-with an externally screwthreaded part it and an internally screwthreaded part 0, the parts It and 0 being of somewhat smaller diameter than the rest ofv the hub. The internal and external screwthreads are of equal pitch, and the direction of both is opposed to the direction of rotation of the shafts a and b, but the internal thread is somewhat longer than the external thread.- Between the parts 71, and o the in- Specification of Letters Patent.
Application filed August 14; 1906. Serial No. 330,572.
: bine wheels in position. v .mounted in bearings j and j, and if neces CENTRIFUGAL APPARATUS FOR COMPRESSING AND PRO PELLfi IG' FLUIDS.
Patented Mar. 8, 1910.
ternal diameter of the hub is somewhat larger tha the diameter of the-shaft. The hubs of a jacent turbine-wheels are-si1np1y Y screwed together, and the distance between the shoulder 21. of the turbine-wheel and the of the series on the shaft being screwed to the said part 2'. A flange g is provided adacent the screw-threaded part i to form an abutment for the respective turbineqvheel,
so that by means of the said flange, the entire series of turbine-Wheels is positioned on the shaft. Each of the shafts a and b is provided with a prismatic part 1" to facilitate the supporting thereof during the assembling of the parts. At 39 each shaft is screw threaded for the reception of a nut and guard-nut, which assists in holdin the tur- The s afts are sary intermediate bearings are provided.
The frame or body of the apparatus is built up of a series of parts making contact in the vertical planes 71: Z and is Z.
. The chambers m, m m into which the fluid passes from the turbine-wheels are provided with spiral partition-walls n n n" by which the current of fluid is sub-divided, but in the case of the last chamber of the. series the partition-wall may be dispensed with a discharge-nozzle for the fluid under pressure being provided instead.
If necessary the apparatus is provided with a water-jacket V, each portion of the body being in that case integral with, or fixed to, a corresponding portion of the jacket, and the adjacent portions of the acket communicating with each other at v S S (Fig. 5) the contact surfaces are of course turned and dressed to make tight joints. a a
The action of the apparatus is as follows: Fluid introduced into the apparatus at 0 passes to the first turbine-wheel, which is revolving at very high speed, and the fluid is thus forced into the chamber m, in which it is distributed between the walls n,n ,n The walls form afeature of the-invention and prevent the production of eddycurrents and consequent waste of energy. Another essential feature of the invention lies in the fact that the chamber m directly conducts the fluid to the orifice of the second turbine'wheel, without any reversal of flow. The fluid thus successively passes from the circumference of one turbine-wheel to the orifice of the next.
An indefinite number of turbine-Wheels can be used, according to the degree of pressure required, and the number may be even or uneven.
The depth of the wheels and casing in the longitudinal sense need not be uniform, as illustrated, but may radually decrease from the first wheel to t e last, that is to say from the entrance of the fluid to the discharge, in order to increase the final pressure of the fluid.
Having now described my invention, what I claim as new and desire to secure by Letters Patent is:
1. A centrifugal apparatus for compressing and propelling fluids 'c comprising in combination two parallel shafts, a first series of centrifugal turbine-wheels mounted on one of said shafts, a second series of centrifugal turbine Wheels mounted on the other shaft so that each of these Wheels is arranged' and enga ed between two adjacent wheels of the first series, and a casing lnclosing both series of wheels and having inlet and outlet orifices arranged so that each of the outlet orifices for the wheels of the first series leads directly to the inlet orifice for the adjacent wheel of the second series, and that each outlet orifice for the wheels of the second series leads directly to theinlet orifice for the adj acent wheel of the first series, substantially as described and for the purpose set forth.
2. A centrifugal apparatus for compress ing and propelling fluids comprising in combination two parallel shafts, a first series of centrifugal turbine wheels mounted on one of said shafts, a second series of centrifugal turbine wheels mounted on the other shaft so that each of these wheels is arranged and engaged between two adjacent wheels of the first series, a casing inclosing both series of wheels and having inlet and outlet orifices arranged so that each of the outlet orifices for the wheels of the first series leads directly to the inlet orifice for the adjacent wheel of the second series and that each outlet orifice for the wheels of the second series leads directly to the inlet orifice for the adjacent wheel of the first series, spiral chambers formed in said casing respectively around each turbine wheel, and partition walls arranged within said spiral chambers parallel to each other and to the walls of the chambers, substantially as-described and for the purpose set forth.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
CARLO WEDEKIN D.
I LUIGI DE FALoo. MAXIIWE NIooLAs.