US908788A

US908788A - Elastic-fluid turbine.

Info

Publication number: US908788A
Application number: US32243006A
Authority: US
Inventors: John A Macmurchy
Original assignee: Westinghouse Machine Co
Current assignee: Westinghouse Machine Co
Priority date: 1906-06-19
Filing date: 1906-06-19
Publication date: 1909-01-05
Anticipated expiration: 1926-01-05

Description

J. A. MAGMUROHY. ELASTIC FLUID TURBINE. APPLICATION FILED' JUNE 19, 1906.

' Patented Jan.5,1909.

2 EHEETE+BHEET 1.

wi/lhwooao- 'J. A. MAOMURGHY.

Patented Jan. 5, 1909, Y

Rm 0 w l mm mm Tm mm UL LI P mm TI T A m L P P A 2 SHEETS-SHEET 2.-

' H IYVESSES ATTORNEY.

UINITED- srAr s PATENT OFFICE.

JOHN A. MACli/IUROHY, WILKINSBURG, PENNSYLVANIA, ASSIGNOR TO THE WESTINGHOUSE MACHINE COMPANY, A CORPORATION OF PENNSYLVANIA.

ELAS'IlC-FLUID rename.

No. 9os,7ss.

Specification of Letters Patent.

Patented Jan. 5, 1909.

Application filed. June 19, 1906. Serial No. 322.430.

To all whom it may con-cam:

Be it known that 1, JOHN A. h/IAOhTURCHY,

a subject of the King of Great Britain and Ireland, and a resident of ii ilkinsburg, in the county of Allegheny and State of lennsyl Vania, United States of America, have made a new and useful lnvention in Elastic-Fluid Turbines, of which the following is a specification.

This invention relates to elastic fluid turbines, the characteristic features of the invention lying if the construction of the nozzles or the motive fluid devices.

The object of this invention is the produc-' tion of a directing device for elastic fluid turbiocs which-is of simple construction and cheap to manufacture. This and other objects I attain with a device embodying the features herein described and illustrated.

In the drawings accompanying this application and forming a part thereof, Figure 1 is a side elevation of a device embodying my invcntiomFig. 2 is a section. along the line AA of Fig. 1; Fig. 3 is a section along the line BB of Fig. 1 Fig. 4 is a side view of a detail forming a modification of my invention; Fig. 5 is a plan view of Fig. 4; Fig. 6 is a section along the line D-D of Fig. 5; and Figs. 7 and 8 are respective side and end views of a'detail of Figs 4 and 5.

A diaplufagm or partition 6, formed integrally with the extorior'casing of a turbine, is located between the working passages of the turbine and a motive-fluid-supply port with which the exterior casing is provided. The working passages of the turbine com: municate with the niotive-fluid-supply port through an opening 7, formed in the partition 6, and a nozzle block 8 is arranged to cooperate with the walls of the 0 )cning 7 to form suitable fluid-directing nozzles.

The nozzle block 8 comprises an arc-shaped piece of metal which is provided with a number of diagonally-extemling slots 9 cut into the concave face and which is located in a slot 10, formed in a inounliug portion 11 and secured to the partition 6 by screws 12. The mounting portion 11 is so arranged that it partially extends into the opening 7 formed in the partition 6, and is secured in place by suitable screws am by taper pins 13 driven into tapered holes 14-, formed partially in the lateral faces of the mounting portion 11 and partially in the adjacent face initial sup ly of the partition 6. The portion 11 is so located that the slotted face of the nozzle block 8 cooperates with a face 16 of the partition 6 in such a manner that the slots 9 form fluid-supply nozzles which communicate on one side with a converging supply passage 17, formed by a face 18 of the partition and a face 19 of the portion 11.

The mounting portion 11 is arranged to extend beyond the diaphragm 6..into the working passage of the turbine and is provided with a slot 21 in which a row ofdirecting vanes 22 are mounted. An annular row of working blades, carried by the turbine rotor, and not shown, operates between the vanes 22 and the diaphragm 6- and receives motive fluid from the supply norzles or slots 9. The motive fluiddischarged from the row of moving blades is received by th.

directing vanes 22 and re-d-irectcd and deli-v ered to the next row of moving blades.

The nozzle block may be utilized between the separate stages of a multistage turbine just as effectively as in connection with the ort, and in such a construction wo ul be coated in the diaphragm that separates the stages.

In assembling the device, the nozzle block 8 is first secured to the partition .6 by the screws 12 and then the mounting portion 11,

into which the blades 2" have been calked,

is slipped into place and secured by the pins 13 and screws 15.

A modification of this invention is shown on Sheet 2 of the drawings. An arc-shaped piece of metal 25, which is arranged to take the place of the nozzle block 8 and fit into the slot 10, is provided with a diagonally-extending groove 26. Diagonally-extending slots 27 are cut across the inner face of the groove 26 and'separate partition pieces 28 are secured therein. The partition pieces 28 are made of brass or phosphor bronze, or other metal, and are cut and she. ed to form the fluid-supply passages 29, w ich correspond to the passages formed by the slots 9 in Fig. 2. The pieces 28 areeithcr ca'lked or pressed into place and, when the mounting portion 11 is in place, are held rigidly by the face 16.

It is apparent that other means may be utilized for forming the slots and, while I have said that the slots 9 are cut into the concave side of the nozzle block 8, it will be apparent to those skilled in the art that the s ots may be cut on the convex side if the arrangement of the turbine requires it.

In accordance with the provisions of the patent statutes, I have described the principle of operation of my invention, together with the apparatus which I now consider to represent the best embodiment thereof; but I desire to have it understood that the apparatus shown is only illustrative and that the invention can be carried out by other means.

What I claim, is:

1. In an elastic fluid turbine in combination with a motive-fluid-supply passage, a sectional nozzle, comprising a nozzle-supporting member mounted on thecasing of the turbine, a slotted block secured to said supporting member and 006 crating with a face of the turbine casing to orm a plurality of su' 1y assages. y

2. lii ail elastic fluid turbine, a nozzle block, and a supporting member for said block provided with a row of stationary vanes'nv 3. In combination, a nozzle block support member provided with two parallel slots, a nozzle block located in one of said slots and I supported by said member and a plurality of stationary directing vanes secured to said member by means of one of said slots.

4. In combination, a nozzle block su port member rovided with a longitudinall -eic tending s ot, a nozzle block located in said slot and a plurality of stationary vanes carried by and secured to said member.

5. In combination, a-nozzle-block support member rovided with a longitudinally-extending sl plurality of fluid directing nozzles secured to said member and a plurality of fluid directing vanes mounted in said slot.

6'. In an elastic fluid turbine, in combination with a fluid supply passage, a nozzle supporting member mounted on the casing of said turbine, a block secured to said member, slots cut in said block to form fluid directing .vanes, which cooperate with a face of the turbine casing to form a plurality of fluid discharge nozzles.

7. In an elastic fluid turbine, a nozzle block sup orting member provided wi th two parallel s ots, a nozzle block located within one of said slots and stationary directing vanes located in the other slot and secured to said supporting member.

ot, a nozzle block provided with a' 8. In combination in an elastic fluid tur bine, a diaphragm, a nozzle block provided with a fluid dpassage and a plurality of parti tions locate in said passage and cooperating with a face of said diaphragm to form fluid 10. In an elastic fluid turbine, a fiuid diprovided with a row recting device comprising a diaphragm pro:

vided with a fluid passage, a .nozzle block '10-1 cated within said passage and cooperating with said diaphragm to form fluidm'ozzl'es, and a su port member for said block. secured to said iaphragm and provided with a plurality of fluid directing vanes.

11. In combination with a nozzle I supporting member, a nozzle block secured in place on said member and a plurality of flu1d directing vanes mounted on said mom-- ber.

12. In an .elastic fluid turbine, a diaphragm, a nozzle block su porting-member providedrwith a slot, anozz e block provided with a slots an located in the slot of said member and cooperating with the face of said diaphragm to form fluid discharge nozzles.

13. In combination with the stationary element of a turbine provided with a'fluid delivery passage, a nozzle block located in said assage, a nozzle-block sup orting memher or said block and secured to said element, and a row of stationary directing *vanes secured to said member.

14. In an elastic fluid turbine in combination with the stationary element of the tur-' bine, a fluid supply passage, a nozzle-block supporting member mounted on said element, 9. block secured to said member, trans versely 'zextending' slo'ts provided in said block and adapted to form fluid directing vanes, which 006 era-te with said face of turbine element to orm a charge nozzles.

1 In testimony whereof I have hereunto subscribed my name this 16th day of June, 1906'.

J. A. MAoMURCHY. Witnesses:

CHARLES W. MoGHEE, Q E. W. MCCALLISTER.

(plurality of transversely extending plurality of fluiddis-