US1257261A - Steam turbine-engine. - Google Patents

Description

i. LOWIS.

STEAM TURBINE ENGINE.

APPucATloN man APR.25. 19H.

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N e i5 summe/ea I/C I. LowIs.

STEAM TUHBINE ENGINE.

APPLICATION FILED APII.25, 1911.

1,257,261. Peeeeted Beb.19,191 8.

-3 SHEETS-SHEET 2.

J. LOWIS.

STEAM TURBlNE ENGINE.

APPLICATION FILED APR.25. 1911.

Patented Feb.19, 1918.

3 SHEETS-SHEET 3 JAMES LOWS, OF BROOKLYN, NEW YORK.

Specification of Letters Patent.

" d STEAM russian-ENGINE.

Patented Feb. 19, 1918.

Application filed April 25, 1917. Serial No. 164,433.-

To all whom t may Concern:

Beit known that l, Janes Lowis. a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Steam Turbine-Engines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to improvements in steam turbine engines.

rlhe object of the present invention is to provide a simple. practical and eflicient steam turbine engine adapted to utilize to a maximum degree the power of steam introduced into it, and capable of permitting steam to act successively on a plurality of rotors and adapted to increase the leverage of the rotors with the reduction in the power of steam through the expenditure of energy( A. further object of the invention is to provide a steam turbine engine of this character adapted to have steam introduced into it at the center and capable of causing the same in passing to the successive rotors to pursue a zigzag course and impinge against the rotors at an angle to the same.

It is also an object of the invention to provide a double steam turbine engine adaptcd to afford a steam tight, connection between the rotors and the shaft and capable of ro tating the same in either direction.

With these and other objects in view, the invention consists in the construction and novel combination of parts hereinafter fully described, illustrated in the accompanying drawings and pointed out in the claims hereto appended; it being understood that various changes in the forni, proportion, size and minor details of construction, within the scope of the claims, may be resorted to withont departing from the spirit or sacrificing any of the advantages of the invention.

ln the drawings:

Figure 1 is a longitudinal sectional view of a double steam turbine engine constructed in accordance with this invention.

Fig. 2 is a transverse sectional view on the line 2-2 of Fig. 1.

Fig..3 is a similarl View on the line 3 3 of Fig'. 1 l

`Like numerals of reference designate cor`-^ responding parts in all the figures of the drawings;

In the accompanying drawings, in which is illustrated the preferred embodiment of the invention, the double rotary turbine engine comprises in its construction two reversely arranged engine units or engines 1 and 2 mounted on a common shaft` 3 and adapted to be rotated to turn the shaft either to the rightor the left. The re-versely arranged units or engines 1 and 2 are arranged within an outer approximately cylindrical casing t provided with a suitable base 5 and preferably composed of sections bolted or otherwise secured together at 6. and while the casing is indicated in the drawings as consisting of four sections it may be of any other desired construction as will be readily understood. The cylindrical casing is provided at its ends or heads with flanged openings 7 through which passes the engine shaft 3 which is mounted in suitable bearings S exteriorly of the casing. Any suitable means may be employed for mounting the shaft 3 and any suitable means may be employed for transmitting motion from the shaft. The engine is adapted to be employed for various purposes.

The casing 4t receives stationary and rotary circular sections 9 and 10, which are provided at their inner faces with annular concentric grooves for the reception of the ends of stationary and movable cylinders, the movable cylinders constituting rotors and being suitably secured to the rotary sections 9 and the stationary cylinders constituting casings and provided with steam ports and suitably secured to the stationary sections 10. The grooves, which extend into the station ary and rotary circular sections, are concentrically arranged and permit the cylinders to form steam tight joints or connections.

The steam is introduced into the steam turbine engine at each end thereof through a diametrically disposed steam inlet passage 11 extending through the stationary section 10 from the periphery thereof to the center of the same, and the said stationary section is provided with longitudinal steam passages 12, which communicate with an annular steam space 13 located between a steam seal 111 and an inner high pressure stationary cylinder 15. The steam sealing member 14, which may be constructed of any suitable material, surrounds the shaft and extends the entire length of the space between the stationary and movable sections and it is secured at its outer end at 16 to the tubular shaft a glands and other packing for this purpose.

The inner high pressure stationary cylinder l5 is provided with steam ports 2O arranged at an inclination and adapted to introduce steam into a high pressure rotor 2l, which is arranged Within an intermediate cylinder or casin e stationary cylinder 15 'is provi( with ot the ports or openiin 20, as shown, and any number of the sai-l ports or openings may be provided and thev are set at L,u angle and arranged at inde-vals throughout the length ot the stationary cylindrical cas The high pressure rotor 2l is protr ded with steam pockets f3 cross-sectionally tapered and forming shoulders against which the steam iinpinges and arranged in spaced relation with the stationaryv cylinder or casing The high pressure steam rotor il is also provided with exhaust ports 2t extending trom the pocket 23. rThese ports or openings je permit the steam to pass into the intermediate cylinder or casing and the latter is provided with ports or openings 25 arrar d at intervals and which :may be of any ne Lred number.

rlhe steam is introducen. from the interined'ate cylinder or casing to an intermediate rotor 26 coiistructed substantially the same the high pressure rotor and provided .vith pockets 2T and exhaust ports 2S through which the steam passes into ports 29 of a lovv pressure cylinder or casing 30, which admits the steam to a lcsv pressure rotor 3l. The loiv pressure rotor is provided with pockets and it has exhaust ports or passages 33 which are adapted to communicate With ports or passages 34 of an outer cylindrical Wall or cylinder The outerx cylinder or ivall is arranged in spaced relation With the outer casing to provide an intervening space 36 for the exhaust of steam. A suitable condenser, (not shown) is connected with the space 36 for the condensation of the exhaust steam, and the rotary steam turbine engine has `the advantage of the lou'v pressure resulting` from the coudensation of the steam and thereby obtains the maxim-um amount of povver from the same, and it is unnecessary to exhaust steam into the atmosphere at. a pressure in excess of atmosphericl pressure.

The rotors and the cylindrical members or casings of each section or unit of the double engine are secured to the stationary and movable sections by screws 37 and 38, or other suitable fastening means, and the grooves 39 of the stationary sections in which the rotors operate are of greater depth than the grooves t0 of the rotary section in which the rotors are secured., and likewise the grooves il of the rotary section, in which the stationary members operate, are of greater depth than the grooves t2 provided in the stationary section for the attachment ot the stationary cylinders or casings. By providing the deep grooves at the moving parts, stean'i tight connections are atlorded and suitable packing may of course be employed if desired.

rEhe concentric cylinders, Which form the rotors and casings and provide the zigzag passages for the steam, preferably increase in thickness from the center' outwardly, and the ports or openings may be tapered, ras shown, if desired.

Pipes 43 and 4A- are connected with the steam inlet passages of the stationary sections l0 and any suitable means may'oiE course be employed for controllingthe feed of steam to the units or sections ol the double steam turbine engine. The rotary sections 9, which are suitably secured tothe shaft 3, are bolted together at 45, as shown, and when steam is admitted to either of the units or sections l and 2 the shaft Will =be rotated, one of the units or sections rotating the shaft in one direction and the other unit or section reversing the rotary movement of the shaft. The rotary sections 9 fit `Within the cylindrical casing and divide the exhaust steam space 36 into separate chambers or compartments so that the exhaust from one unit or section will not pass into the space 36 ot' the other unit or section of the engi-ne.

The stationary sections are preferably equipped with steam gages 46, 17 and t8 having pipes 49, 50 and 51 extending through the stationary sections and communicating' with the high pressure steam, the intermediate pressure steam and the l'oW pressure steam for enabling the pounds of pressure to be readily ascertained.

What is claimed is:

l. A turbine engine including?,` a casing havinga steam inlet passage, stationary and movable sections located Within the casing, and a series of concentric cylindrical rotors and stationary members, the rotors being interposed between the stationary cylindrical members and secured to and 'carried by the movable sections and the stationaryl cylindrical members being secured to the sta-y tionary sections, the rotors` and cylindrical members being provided with ports for the passage of steam andthe rotors having con tinuous grooves forming pockets adapted to be engaged by the steam whereby the rotors are actuated, said rotors being alsoprovided at intervals With ports communicating with the grooves'. y

2. A turbine engine of the'class 'described including an outer casing, xed and 'mov-H JOD able sections mounted Within the casing, a plurality or" stationary cylindrical members secured to the stationary section and provided With ports, a plurality. of cylindrical rotors secured to the movable section and incased between the cylindrical members and having ports, said ports being set at an angle for causing the fluid under pressure to be directed against the rotors at an angle, said rotors being provided also With continuous grooves forming shoulders against Which the said luid impinges, the ports of the rotors being arranged at intervals along the grooves.

3. A turbine engine of the classdescribed including an outer casing, ixed and movable sections mounted Within the casing, a plurality of stationary cylindrical members secured to the stationary section and provided with ports, a plurality of cylindrical rotors secured to the movable section and incased between the cylindrical members and having ports, said ports being set at an angle for causing the fluid under pressure to be directed against the rotors at an angle, said rotors being also provided with transversely tapered continuous grooves :torming pockets having inclined Walls and forming shoulders against which the fluid under pressure impinges, the ports of the rotors being arranged at intervals and extending from the apex of each groove.

t. A turbine engine of the class described including a casing, fixed and movable sections mounted Within the casing, a shaft extending through the sections and secured to the movable section, a plurality of stationary and movable cylinders connected respectively with the stationary and movable sections, the innermost cylinder being arranged in spaced relation with the shaft to provide a steam space, and a steam sealing member of cylindrical form surrounding the shaft and extending entirely across the space between the said sections to exclude steam from the shaft, one end of the steam sealing member being secured to the stationary section and the other end being extended into the movable section to form an overlapping connection.

5. *A turbine engine including .a casing of cylindrical form7 a shaft extending through the casing, stationary and movable circular sections arranged Within the casing, the stationary sections being located at the ends of the casing and the movable sections being secured together intermediate of the ends of the said casing and fitting the interior thereof for dividing the casing into separate compartments or chambers, cylindrical rotors and stationary members connected respectively with the movable and stationary sections and provided With ports or passages for permitting steam to act successively on the rotors, the said stationary sections being provided With steam inlet passages, and steam feed pipes extending through the casing and communicating .with the passages.

In testimony whereof I aiiix my signature in presence of two Witnesses.

JAMES LOWIS.

Witnesses:

JOHN W. SMITH, CHARLES HOULDIN.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents Washington, D. G.

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