US941322A - Steam-turbine. - Google Patents

Description

M. KELLER.

STEAM TURBINE. APPLICATION FILED JUNE 15, 1909.

Patented H0123, 1909.

attocnoy v or" steam.

panying drawing in ,Which:

base from which rise same-ed Still'ldilliS carrying {ii Specificatim oz .sp oliee'tion filed 3a.:

To all whom it may concern;

-Be it known that I, Mic-H AKEL KELLER citizen" of the United States,- resi at Eureka, 1n the county of Juab and Smte of Utah have invented new and useful Timprovements in SieanrTurbines, of which the following is a specification.

This invention relates to steam turbines, the objec-a of the invention being to provide a novel construction of turbine wheel and means for sup iiying steam to the vanes thereof by which the Wheel may be rotated ate desired rate of speed and to firsnsmit greater or ess amount of driving power to its driving shaft, the consiruetion being such as to enable the Wheel :0 be drive a minimum milomit of waste or expenditure The invention consists of ,the features of oonstrugf on, combination and arrangement. of part hereinafter fully described and claimed, reference being had to the aco0m- Figure 1 is a vertical iongitudiiiai sectionor" a steam turbine embodying my invention Fig. 2 is verticai' transverse bio-:1 through the turbine wheel and its supporting base. Fi 3 is a top plarrview the steam chest. a side View, partiaiiy in section, of a portion of iie rim of the wheei.

Referring to the drawings, 1 d.

bearings the engine of which mounted a, puliey 5 slitting power therefrom toth-e machine element is be driven.

Keyed or otherwise tween. the stanierds is comprising a hub Z, rim and s spokes or rsdiaiarms 9 connecting the with the hub. This construction of t wheei is preferred in order to secure T ness of Weight, but any other preferred 301istruction may be employed" vThG periphery of this rim 8 provirieai with a. plurality of um iiier s 0. vanes 10, each of which refers 1 end into iiie ooncaved face, -1111- a point or iueed outletthe block. .iro or time? wed o block formed .2 iii a Cavity 11 602mm.

- ing each vane enters and any tendency .motion. valves 18 may -f,r0In a single rotate the wheel at "the required speed and passes beyond the front of the steam exhausts from the cavities impact start the face of the base and by Successive turbine wheel into operation.

vanes in the rotation of the quired rate of speed, at which time a momentum will have been acquired and the weight of the vanes will act to impart a fly wheel effect to. insure a uniformity of At this time all butone of the be closed, the steam supply pipe 17 being sufiicient to to furnish the requisite amount of power unless the-load on 'the engine is comparatively heavy, under which conditions the valve or valves of one or both the other -steam supply injection of steam against the vanes of two or pipes may be opened or the The jet of steam strikthe cavity 11 at an angle and tends to exert an upward as Well as a forward forcing effect on the peri hery of the wheel, by which the wheel is lifted asit were and at the a1ne time given a driving efi'ect to overcome the tendency inertia from its weight and propel the same forward in its direction of revolution. By this means the impact pressure of the steam is effectually utilized for a driving action to back pressure prevented. The pockets 12' in the'wheels increase the extent'of impact surface and are inclined correspondingly to the pockets in the vanes to increase the lifting and propelling efi'ect described. As each transverse row of vanes allthe annular rows.

thereof, as, will be readily understood.

A turbine constructed as above described base the It is "economical" .in

and also provided with tangential steam ducts intersecting said channels, valved conductors comnnmicating with the ducts, and a rotor provided, with vanes adapted to travel through said passages and to receive the impact from the jets of steam issuing from the ducts.

2. A turbine embodying a fixed surface having a curved face provided with steam channels and comn'iunicating passages, the latter opening through said curved face. and also provided with tangcntiahsteam ducts intersecting said channels, valvedconductorzs communicating with the ducts, a rotor provided in its periphery with pockets. inclined in its direction of cured to the periphery of the rotor to trawl throu hsaid passages and receive the impact' from the jets'of steam issuing from the ducts, said vanes being formed with cavities inclined cprrespondingly to and communlcating with S'flKlPOChTOiS. In testimony whereof l afhx my signature in presence of two witnesses.

MICHAEL 'KIBLLIGH. iVitnesses (burn-1s SGILH'ILHNH, alums Enlsrua-x.

rotation, and vanes

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