US1024982A

US1024982A - Power-transmission mechanism.

Info

Publication number: US1024982A
Application number: US57345510A
Authority: US
Inventors: Hermann Foettinger
Original assignee: Individual
Current assignee: Individual
Priority date: 1910-07-21
Filing date: 1910-07-21
Publication date: 1912-04-30
Anticipated expiration: 1929-04-30

Description

H. FUTTINGER.

POWER TRANSMISSION MECHANISM.

APPLIOATION FILED JULY 21, 1910. 1,024,982.

Patented Apr. 30, 1912 U M I 17 R 14 11 J3 1 A 16 j 7 lye/q l WIT [ME-S m/mvrox? HWY/WU! [if/[Myer 6/ HERMANN FfiTTINGER, OF ZOPPOT, NEAR DANZIG, GERMANY.

POWER-TRANSMISSION MECHANISM.

Speciflcation of Letters Patent.

Patented Apr. 30, 1912.

Application filed July 21, 1910. Serial No. 573,455.

To all whom it may concern Be it known that I, HERMANN Forrmonn, a subject of the German Emperor, residing at Zoppot, Germany, have invented new and useful Improvements in Power-Transmission Mechanism, of which the following is a specification.

My invention relates to improvements in the hydraulic power transmission mechanism with turbine-wheels as disclosed in my pending application for United States Letters Patent, Serial No. 327,395. The mechanism described in the said application comprises one or more primary turbines and one or more secondary turbines, located in immediate proximity, and so connected that the passages for the working-fluid of the primary and secondary turbines form a closed system in the common casing. These combined passages may be termed the working chamber of the system.

The blading of the mechanism can-especially in the case of two-stage secondary Wheelsbe such that the first secondarywheel utilizes mainly the velocity of the fluid, that is to say, works as action-wheel, while the second secondary-wheel is designed to utilize principally the pressure and is thus bladed as reaction-wheel. It

may be said that the primary turbine acts as a pump, and the secondary turbine acts as a motor. Such constructions are already well lmown for centrifugal-pumps, and are chiefly employed in cases in which it is desired to obviate the formation of hollow spaces in the action-wheel at high speeds. For power transmitting mechanism, on the other hand, the arrangement has not yet been adopted; nor is it always advisable to provide such, though in the absence of the same all the spaces of the giecglanism do not always remain filled with According to the present invention, in order to avoid losses on the occurrence of negative-pressures in the transmissionmechanism, and to avoid the formation of hollow-spaces, which result, I place the working-chamber under pressure, which 1 find can be done without any disadvantage for the mechanism. This can, for instance, be efl'ected by means of a pump, an elevated vessel, or in other suitable manner.

Depending upon the pressures in the mechanism produced by the elevated vessel, pump or the like, there occurs a greater or less loss of operative-water, which escapes from the stuffing-boxes or through the interstices within the mechanism itself. This escaping water, however, can be employed to advantage for regulating the general temperature of the mechanism, the interstices through which the water flows out being for,

this purpose made of such dimensions that such quantity of hot water can always be replaced as is requisite to prevent a certain temperature in the mechanism being exceeded. The pump employed for setting the mechanism under pressure, can also be used for keeping the same continuously filled under pressure, and for supplying fresh or cooled leakage-water thereto.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures, and in which Figure 1 is a side elevation showing somewhat diagrammatically the application of a pump to a power transmitting mechanism constructed as disclosed in my application above referred to, the transmitting mechanism being shown partly in section; Fig. 2 is a view somewhat similar to Fig. 1, but showing the application of an overhead tank instead of a pump; and Fig. 3 is a similar view showing the use of both a pump and an overhead tank in the same system.

The power transmitting mechanism shown in the drawings is constructed substantially as illustrated in my copending application above referred to. This power transmitting mechanism includes a casing 10, having a series of substantially radial passages 11 therethrough and juxtaposed to two rotary members or

turbines

12 and 13, which have passages 14 and 15 combining with the passages 11 to form a complete circuit for the fluid. .The turbine 13 may be connected to the drive shaft and the turbine 12 to the driven shaft. The liquid thrown out from the passages'15 enters the passages 14 and causes the two turbines to travel together.

A conduit 16 leads to the casing, so that the amount of liquid within the passages may be increased or decreased at will. As shown in Fig. 1, a centrifugal pump 17 operates to deliver liquid to this conduit. In Fig. 2, I have illustrated a similar transmitting mechanism with a conduit 16 and an overhead tank 17 connected thereto, so as to maintain a constant liquid pressure within the power transmitter. In Fig. 3, the conduit 16 and the pump 17 are similar to those illustrated in Fig. 1, and the overhead tank 17 delivers through a conduit 16 to the conduit 16 in substantially the same manner as the corresponding parts do in the form shown in Fig. l.

lVhat I claim as new is 1. An apparatus for transmitting or transforming power, having a turbine to transmit energy to afluid, and a turbine capable of receiving power from an energized fluid, the two turbines having passages arranged with respect to each other in such a manner that they form a curved circuit in which said fluid circulates, whereby the rotation of said second turbine is secured solely through the movement of the fluid, and means for maintaining said fluid under pressure in said passages by an extraneous source. 1

2. The combination with a casing con taining a confined volume. of liquid, of a shaft rotatably mounted therein, a centrifugal pump impeller secured tosaid shaft, a turbine wheel located in said casing, said impeller being adapted to direct liquid to said turbine wheel, whereby the turbine is actuated solely by the movement of the liquid, and a pump communicating with said casing for the purpose of maintaining the same under pressure and returning escaping working fluid thereto.

3. In combination, a casing, two members arranged in said casing, each having radial passages, the outlets from the passages of one of said members being constructed to direct a liquid against the other member, and extraneous means for maintaining the fluid in said casing under pressure.

4. An apparatus for transmitting or transforming power, having a turbine to transmit energy to a fluid, a turbine capable of receiving power from the energized fluid, means for controlling the flow of the fluid, whereby the second-mentioned turbine is rotated solely by the action of the fluid delivered from the first-mentioned turbine,

and means for maintaining said fluid under pressure by an extraneous source.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HERMANN FOTTINGER.

Witnesses:

- ALBERT GEHLICHT,

AUGUST WOLF.