US971918A - Steam-turbine. - Google Patents

Description

T. R. MORGAN, A. L. ATWATER, B. A. OROWTHEE & W. M. ASH.

' STEAM TURBINE.

APPLICATION FILED PEB.3, 1910. 971,918, Patented 061.4, 1910.

2 SHEETS-SHEET 1.,

18 i mtooeo T. R. MORGAN, A. L. ATWATER, B. A. OROWTHER & W. M. ASH.

STEAM TURBINE.

APPLIOATION FILED FEES, 1910. ?L91 I Patented Oct. 4, 1910.

2 SHEETS-SHEET 2.

STATES PATENT THOMAS E. MORGAN, ARCHIBALID L. ATWATER, AND BENJAMIN A. OROWTI-IER, OF PITTSTON, AND WILLIAM M. ASH, OF WILLIAIVISPORT, PENNSYLVANIA.

STEAM-TURBINE.

owners.

Specification of Letters Patent.

Patented Get. a, 1910.

Application filed February 3, 1910. Serial No. 541,931.

.tional view with the rotor removed; Fig. 2

a transverse vertical section of a portion of the engine, the lower portion of the engine being shown in edge elevation; Fig. 3 a detail side elevation of the rotor; Fig. 4 a horizontal section on the line 4:& of Fig. 1; Fig. 5 a detail section on the curved line 5-5 of Fig. l; and Fig. 6 a horizontal section of the rotor, enlarged.

The object of this invention is to simplify the turbine rendering it reversible, as more fully hereinafter set forth.

The rotor consists of two wheels or disks a separated by a space Z) and attached to a single hub c which is attached to the driven shaft (Z, which shaft is ournaled centrally in the side walls 0 of the casing, suitable means being provided for rendering these journals steam tight and for oiling them. The two side walls of the casing are bolted together at their edges by transverse bolts, a suitable spacing wall f being clamped therebetween to form the chamber in which the rotor works. In each side wall is formed a live steam chamber g, which encircles the shaft and is divided into halves by radial transverse partitions it, these partitions be ing vertically arranged. The two halves of these chambers are connected to a live steam pipe h at the left hand side and to a similar pipe h at the right hand side of the engine, these two pipes being connected up to a single valve 2' which is suitably constructed to throw the steam into either one of these pipes. The chambers g are connected by ports j in the casing side walls to a transverse port 70 in the spacing wall 7", which latter port I: communicates with one of the pipes h or it. In this way it will be observed. that live steam may be supplied simultaneously to either the left hand pair of chambers g or the right hand pair but not to both. Inwardly through each side wall, from the chambers 9 extends a series of noz zles Z which nozzles are arranged approximately tangentially so that the steam shall strike the side faces of the rotor at an acute angle. The nozzles at opposite sides of par titions 7L are directed in opposite directions as shown in Fig. 1, one set of nozzles being adapted for use in running the rotor in one direction and the other set for running it in the opposite direction. Each nozzle terminates in a recess m.

Each outer face of the rotor is provided with a series of radial angular grooves a, from the bottoms of which extend small ports 0, leading into the space 7) between the rotor men'lbers, so that after the steam has performed its work by impact against the walls of the grooves n (which walls form the blades of blade surfaces) the steam exhausts into the space Z) and thence to the bottom outer casing and out through the exhaust pipes 29. The grooves 72: are practically right angle grooves so that their walls will be presented, as the rotor rotates, at practically right angles to the incoming jets of steam, so that the whole power of the impact is obtained. The recesses m form expansion chambers for the steam, the back wall 9 of each chamber lying approximately at right angles to the incoming steam and parallel with the faces of the blades against which the steam impacts during the time of impaction, whereby the full expansive force of the steam is obtained. It will be observed that if it be desired to do so the nozzles may be all arranged in the same direction on each side, but in that case the turbine will not be reversible.

A pipe 1 leads into the top of the casing and discharges into the space Z) between the rotor members; by means of this pipe a jet of water may be thrown into said space Z) to condense the exhaust steam and thus create a vacuum, which will avoid back pressure in the usual way.

It is obvious that this engine may be driven by compressed air or water if desired but in this case the water jet pipe 7 will not be needed.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. In combination with a casing and means for jetting steam in through the side walls thereof, a shaft, and a rotor within the casing having blades on its outer faces and being annularly separated into two members, the space between the members affording an exhaust chamber.

2. In combination with a casing and means for jetting steam in through the side walls thereof, a shaft, and a rotor within the casing having blades on its outer faces and being annularly separated into two iembers, the space between the members affording an exhaust chamber, said two members being provided with numerous ports leading from the blade side into said exhaust chamber.

3. In combination with a casing and means for jetting steam in through the side alls thereof, a shaft, and a rotor within the casing having blades on its outer faces and being annularly separated into two members, the space between the members affording an exhaust chamber, said blades being closely and radially arranged having impact surfaces lying at approximately right angles to the jets.

4c. In combination, a casing having side walls each being hollow and connected to live steam pipes, the chamber in each side wall being annular and divided transversely by partitions, the inner wall of each of said annular chambers being provided with nozzles, one half of which are inclined in one direction and the other half in the opposite direction, a shaft extending through the casing and carrying a rotor having an annular series of blades on each of its side faces, and means for alternately admitting steam to opposite pairs of said chambers in the casing walls.

5. In combination with a casing having hollow side walls, said spaces extending entirely around the shaft, a rotor within the casing provided with blades at opposite surfaces and the inner wall of the casing having a series of jets or nozzles, one-half these nozzles extending in one direction and the other half in the opposite direction, means for supplying fluid alternately to the opposite sets of nozzles.

6. In combination, a casin a shaft ex tending therethrough and carrying a rotor, this rotor having blades on its opposite side faces and provided with an annular exhaust space into which fluid exhausts from said blades, means for introducing jets of steam against opposite sides of the rotor, means for injecting a condensing liquid into said exhaust space, and outlet means for exhaust steam and condensing liquid.

Signed this 26th day of January, 1910. THOMAS E. MORGAY. ARCHIBALD L. ATVATER. BENJ. A. CROYVTHER. WILLIAM M. ASH.

itnesses Lnwrs SMITH, GEORGE T. Asrr.

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