US1139562A - Turbine. - Google Patents

Description

J. NASH.

TURBINE.

APPLICATION FILED sanza, 1914.

L, l gg, Patented 18, 5.

4 SH -SHE Witnesses n Attorneys I. NASH.

TURBINE.

APPLICATION FILED SEPT.26 19I4.

193.51520 Patented 1135118, 1915.

4 SHEETS-SHEET 2.

Witnesses l. NASH.

TURBINE.

APPLICATION man SEPT. 26. 1914.

Patented May 18, 1915.

4 SHEETS-SHEET 4.

rHE MORRIS PETERS CO., PHOTGLITHO.. WASHINGTON, D. C.

s Vr orme e JOHN NASH, OF NORTH YAKIll/IA, WASHINGTON.

TURBINE.

Specification of Letters Patent.

Patented May 18, 1915.

Application led September 26, 1914. Serial No. 863,681,

T0 all 'whom t may concern.'

Be it known that I, JOHN NASH, a citizen of the United States, residing at North Yakima, in the county of Yakima and State of YWashington, have invented a new and useful Turbine, of which the following is a specification.

yThe present invention relates to improvements in turbines, and more particularly to that type of turbine in which an elastic pressure 1Huid such as steam is employed as the motive power, one object of the invention, being the provision of a turbine, in which the rotor is composed of a plurality of disks disposed in spaced relation to provide steam passages therebetween and at the same time offer steam impact surfaces at various equi-distant points around the circumference of the rotor, so that the full impact force and the maximum amount of the expansive force of the pressure fluid may be utilized.

W ith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

in the drawings Figure 1 is a longitudinal sectional view through the complete turbine. Fig. 2 is a cross section taken approximately on lines 2 2 of Fig. 1. Fig. 3 is an enlarged detail sectional view showing the construction of the pressure fluid nozzle at its junction with the stator. Figs. 4, 5 and 6 are sections and partial elevations of the other sections of the side of the rotor as illustrated in Fig. 2. Fig. 7 is an enlarged detail sectional view of one section of the rotor showing the various steam passages and the vane for conducting the steam therethrough from the inlet or impact portion of its respective member to the exhaust. Fig. 8 is an enlarged detail perspective view of a portion of the vane carrying member. Fig. 9 is a view similar of a portion of the rotor shown in Fig. 2 showing a modified form of vane carrying member.

Referring to the drawings, the numeral 1 designates the two supporting members below the stator, which is composed of the lower section 2 and the upper section 3, said sections being `constructed so as to provide the rotor chamber 4 and the two exhaust chambers 5 and 5. rlhe partitions 6 and 6 which are carried by the two sections of the stator also provide the exhaust ports 7 and 7 so that the rotor chamber is in communication with the chambers 5 and 5 at the opposite ends thereof and as near the center of the rotor chamber as is possible, the exhaust ports 7 and 7 being substantially concentric of the rotor chamber.

Attached to the exterior of the stator are the nozzle casings 8, in the present instance four being shown, such casings each having a steam inlet pipe formed centrally thereof for projecting the pressurel fluid into the elongated nozzle portions 9 formed in the walls of the stator. rl`he nozzle portions 9 are tapered inwardly and enter the chamber 4 at a tangent thereto so as to properly act upon to rotate the rotor R. Leading from each one of the respective exhaust chambers 5 and 5 are the exhaust pipes 11 and 11.

, The rotor R is composed of the central plate 12 and the two end plates 18 and 13', the central plate 12 being an imperforate plate, while the plates 13 and 13 are provided with steam outlet ports (not shown) which correspond with the outlet ports 21 of the sections of the rotor. Fach section 14 is composed of approximately two plates 19 and a spacing spider or disk 12, so that a space is provided between the plates 19. After steam has abutted the edge a of the plates 19, it finally follows the direction of the arrows (F ig. 1) through the passages caused by the transverse blades 22 to the exhaust ports 21 centrally of the rotor.

As shown clearly in Figs. 7 and 8, the annular plates 19 are each constructed with a plurality of vanes 22 and 22", mounted in opposite directions so as to provide the transverse openings or ports 22 and 22 so that when the parts are assembled as shown in Fig. 7, with a plate or annular member 19 between the respective disks 12, that two steam passages will be provided upon each side thereof, as clearly shown at 22a and 22h. Thus when the steam abuts the edges a of the annular members 19, the same will first enter the passage at the left of the plate 19 as viewed in Fig. 7, or the passage 22a where it will impinge the vane 22 and be directed to the slot 22, thereby entering the passage 22b between the plates 19 and 12, and being again switched into the passage 22a by the vane 22 through the slot 2 This follows throughout the series ioy 'pipes 11.

of vanes and until the steam is directed into 'the'exhaust port 21. Asvshown in Figs. 2,

A, 5 and G, these ports 21 are constructed differently for the four sets of vane carrying members of the present rotor. carrying member nearest the center `is con structed as illustrated in Fig. 6 with one port 21. The vane carrying member nearest the exhaust-port 7 (Fig. 2) has four ports 21, while 'the one adjacent thereto A) has three-ports 21, and the nextV vane carrying member (Fig. 5) has two ports 21. By

this arrangement the innermost port is per? mitted an exhaust through the various vane carrying members to finally exit through the port 7 .to the inal. outlet or Yexhaust As illustrated in Fig. 9, the annulus 19" is constructed with a series of vanes and 25, and as clearly illustrated are disposed in a series of three, lthose indicated at 25 being bent in an `opposite direction to those indicated at V25, thus giving 'a greater impact space between the respective annular members 19. than where they extend transversely in a single vane, as illustrated in Fig. 8.

The rotor shaft 16 is provided with a longitudinal groove 16 for the reception of the Y of which the rotor is key 17 and the locking screwV 18 by'means thereupon.

Yrotor chamber being provided with a plu- (topics of this patent may be obtained for From the foregoing description, it isevident that when the vsteam is admitted` through the respective pipes 10 that the same will be directed against the'periphery of the rotor R, and as the various sections thereof are so arranged that four are disposed upon .each side ofthe partition dislr l2jwith their impact edges a arranged quarteringas villustrated in Figs. 2, A, 5 and, that a continuous rotative movement `will .be ,imparted tothe rotor R, thepressure fluid being properly conducted betweenthe passages 222? and 22bso as to finally be exhausted throughV the ports 21 at the opposite ends of the stator, the vanes as, illustratedreceiving the impact land expansive force ofV the steam so as to absorbe all theppossible power therefrom, from the initial impact to the final action, of the expanded steam through the ports 21. p Each disk 13-13 is provided with a concentric spring pressed packing ring to abut the adjacent face of theend wall of the stator.v

y, What is claimed is:

- 1. A turbine, including a stator provided with a cylindrical rotor chamber and two exhaust chambers, one at'each end of andin communication with the rotor chamber, said rality of'inlet ports disposed the full length thereof and tangentially thereto, and a r0- rlhe vane properly clamped tor'having a central partition and two active.l

members one at each side thereof, said partition dividing the pressurefluid to cause it to exhaust equally in each exhaust chamber.

V2. A turbine, including a stator provided with a cylindrical rotor chamberV and two exhaust chambers, one at each end of and in communication withthe rotor chamber, said rotor chamber being provided witha plurality of inlet Vports disposed the full length thereof and tangentially thereto, a `rotor mounted in the chamber andcomposed ofV a centrally disposed partitional i disk, a segmental member at-each kside of the disk, said member being divided into a plurality of active pressure receiving'spaces, and having means for guiding the exhaust toward'the center of the rotor, the rotor being hollow atthe center and being in communication at its endsxwith the respective exhaust chambers.

- 8. A turbine, including a stator provided with a cylindrical rotor chamber and two ex-k K.

haust chambers', one at'each end of and in communication with the rotor chamber, said rotor chamber being provided with a. plurality of inletr ports disposed the full length thereof and tangentially thereto, and a rotor composed of a central partitional disk, and two active members oneupon each side ofthe Vdisk each ofv said members beingV composed of a plurality of circular. sections,

and each section havingan impact surface and providedfwith a pressure fluid'passage leading therefrom tothe center of the rotor,-

said vrotor at each side. of the Vpartitional disk being' provided with a pressure fluid directing port` in communication'with the respective. exhaust chambers.

A'. VA turbine, including a stator providedA with a cylindrical rotor chamber and'two V exhaust chambersone at each end of and in communication with Athe rotorchamber, said having a central partition and two active members one at eachlside thereof, said pari rotor chamber being provided with a plujfV rality of inlet ports disposed vthe full length thereof and tangentially thereto, a rotorV tition dividing the pressure fluid to cause it i i to exhaust equally in each exhaust chamber,

each active member, including a pluralityof i five cents each, by addressingthe v. Commissioner of 11acei'1ts,Y i

Washington,D.0.

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