US645437A - Rotary engine. - Google Patents

Description

No. 645,437. I Patented Mar. is, 1900.

K. THOMANN.

ROTARY ENGINE.

(Application filed Nov. 9, 1898.\ (No Model.)

y 3 Sheets-Sheet l.

No. 645,437; Patented Mar. 13, I900.

K. woman.

No. 645,437. Patented. Mar. [3, I900. K. THOMANN.

ROTARY ENGINE.

(Application filed Nov. 9, 1898.\ (No Model.) 3 Sheets-Sheet 3.

mVM k UNIT STATES ATEN trio.

KARL THOMANN, OFHALLE, GERMANY.

ROTARY ENGINE.

SPECIFICATION forming part of Letters Patent No. 645,437, dated March 13, 1900-. Application filed November 9,1898. Serial No. 695,980. Nom det To all whom. it may concern.-

Be it known that I, KARL THOMANN, a subject of the Emperor of Germany, and a resident of Halle, in the Empire of Germany, have invented certain new and useful Improvements in Rotary Engines, of which the followin g is a specification.

This invention has for its object an improved rotary motor for steam, gas, or compressed air. The annular working chambers of the same are divided in the ordinary manner into sickle-shaped compartments by means of annular rings located on a rotary plain disk and the said compartments again divided, by means of the slides or pistons arranged in the rings, into admission, expansion, and discharge chambers.

This improved motor is characterized, first, by the working chambers lying on both sides of the plain disk being mutually diametrically displaced-that is to say, lying eccentric to one another; second, by the slides or pistons through which the sickle-shaped chambers are divided oscillating in the rings of the plain disk and by the rings traveling on the inner cores of the casing being guided;

third, by the central position of the shaft being secured by means of a special form of the capable of being mutually adjusted so that the motor always remains tight; sixth, by the parts which work one in the other being adj ustable by reason of their conical shape, and thereby allowing of an exact tight fitting of the same; seventh, by the casing being rendered perfectly tight to the outside by means of an adjustable ring.

My improved apparatus is shown in the accompanying drawings, in which Figure 1 is a vertical diametrical section of this improved motor with tapering or conical inner cores or surfaces. Fig. 2 is a vertical cross-section on the line II II of Fig. 1. Fig. 3 is a similar View to Fig. 2 of the internal appearance of the casin g, while Fig. at is a sectional View of the plain disk on the line IV IV of Fig. 5 and showing the position of the feed-passages formed in the plain disk ofthe slides or pistons. Fig. 5 is a vertical diametrical section of the plain disk. Figs. 6, 7, and

8 are separate views of the slides arranged at each side of the plain disk with their conical guide-rings. Fig. 9 is a vertical diametrical section of a similar motor with cylindrical inner surfaces. Fig. 10 is a vertical cross-section of the motor shown in Fig. 9 on the line IX IX. Fig. 11 is a detail view.

The constructive arrangement of the motor is as follows: The two parts 1 and 2 of the casing each has internally an eccentric core 3, projecting toward the inside, so that as usual an annular chamber results. Both halves of the casing are, however, mutually displaced diametrically in such a way that they stand eccentrically vertically to-one another, and the driving-shaft 4, mounted in the inner core 3, is also eccentrically mounted in the said chambers. A plain disk 5 is mounted on the driving-shaft 4 and carries on each side an annular ring 6, mounted concentric to the driving-shaft. On each internal core a number of slide-rings 7 are arranged, the number of which agrees with the number of slides or pistons 8, situated on each side of the plain disk. In the present case three such slides 8 are employed, which are adapted to move radially and to oscillate on each side of the plain disk in the annular working chambers, and corresponding therewith there are on each inner core 3 three rings 7, each of which is connected with one of the slides 8. v In each annular ring 6 bolts 9, which are slotted, but which are revoluble, are mounted, and each of them carries a slide 8. As each annular ring encounters with its outer surface at the point 00 the inner wall of its part of the casing and at the point y the outer surface of its slide-ring 7 the annular working chamber is divided into sickle-shaped compartments, asmay be seen in Figs. 2 and 10. As, therefore, each inner core 3, on which the slide-rings 7 with the slides 8 rotate, lies eccentrically to the driving-shaft 4., and therefore to the axis of rotation of the plain disk 5, the slides 8 execute not merely a reciprocatory movement in the bolts 9, but also an oscillating one, and for this object the bolts 9 are provided, so that the slides are always guided in a tight slot and yet can oscillate. Also in order that the slides in any position of the plain disk 5 may lie in the radius of the inner core they are, as

and discharge-chamber .lever 16.

already mentioned, guided by means of the rings 7.

The slides 8 divide each sickle-shaped chamber in the indicated number into an admission-chamber a, expansion-chamber e, (See Figs. 2 and 10.) The medium of pressure acts first in the inner sickleshaped chamber III, passes through the transfer-passage 10 into an outer sickle -shaped chamber V, and there acts again in order to finally escape through the discharge-passage 11 to the exit. This action takes place on both sides of the plain disk 5 at different places, but in the same direction, so that the driving-shaft 1 does not experionce a strain on one side.

In order to be able to work with a variable charge, the steam-admission passage 12 opens into a segment-shaped recess 13 on the inner side of the inner core 3, in which recess a segment-shaped slide 14 is arranged. The latter is mounted on a shaft 15 and may be regulated from the outside by means of a setting- The plain disk 5 has on each plane surface so-called feed-passages 17 which are shown in Fig. 4 on the plane surfaces and also in Fig. 5. As may be seen from this latter figure, the feed-passages 17 have a special form. \Vhen by the rotation of the plain disk 5 they reach the dotted position 01, they are closed against the passage 12 and the charge is finished. If the slides 14 be moved in the direction of the hands of a watch farther to the right, the charge is increased, because the part of the segment-shaped recess 13 corresponding with the passage 12 connects longer with the feed-passage. If two of the slides 8 in the sickle-shaped chamber III or V assume a symmetrical position to the vertical in the indicated position of the motor, the chamber contained between them must be regarded as a maximum expansionchamber and the expansion reaches its end. From this position onward the discharge 'must take place, and for this object a transfer-passage 10, provided with a trough-shaped recess r, arranged in the casing, is provided, which recess expands or enlarges up to the position 00, so that on the further movement of the slide a discharge may take place from the said wedge-shaped expanding-chamber. In order, however, that the charge or feed may take place after the transfer of the medium of power from the sickle-shaped chamber III to V has taken place alreadyin the indicated position of Fig. 2, the transmission-passage in this chamberis also provided with a troughshaped extension 8, Figs. 2, 3, and 10. A discharge-passage 11, through which the consumed medium of power escapes, is also provided with a similar trough-shaped passage it. If the cylinder-surfaces which travel one on the other become worn at the points :0 and y, they may again be rendered tight in case the motor is given a conical form, as is shown in Fig. 1, by screwing together the two casings. As the exact coincidence of the surfaces engaging with one another causes Very much work, the inner wall of the casing and the. slide ring 7 may be made adjustable against the annular ring 6 of the plain disk 5, as is shown in the cylindrical form of construction represented in Figs. 9 and 11. For this object a separate plain ring 19 is insert ed in the interior of the casing, which forms the inner wall of the casing and may be exactly adjusted by means of screws 20. The readjustment may, however, be effected also by means of an eccentric shaft 21, (see Fig. 11,) arranged in the casing or in any other suitable manner.. The slide-ring 7 may, as shown in Fig. 10, also be adjusted by means of an eccentric shaft 22, mounted in the inner core 3, so that they again always travel quite tightly against the annular ring 6 of the plain disk.

In order to render the interior of the casing quite tight to the outside, a ring 23 is screwed into the one casing half, which ring engages in a groove of the other half-casing. In this groove washering material is placed which'is compressed by means of the ring 23. The whole casing of the motor may in addition he provided with a covering-casim 26, Fig. 1,-

and also it may be heated by the dischargesteam or by fresh steam from the boiler.

In order to effect the centering of the driving-shaft 4, it is at both sides of the plain disk 5 formed conically at the places h, as shown as an example in Fig. 1, and surrounded by a bush-bearing 1 which suits itself to the partial conicity h of the shaft. The bush-bearing is screwed into the internal core 3 and fixed by means of a safety-nut 24. A stufiing-box 25 of any suitable form of construction may also be arranged on the outer end of the bush-bearing, so that the motor is rendered entirely tight to the outside.

The working of this new motor is as follows: The power medium enters on both sides of the plain disk through the feed-passages 12 and through feed-passages 17, situated in the plain disk, into the inner sickle-shaped chamber III in front of the slide 8 lying nearest thereto-that is to say, in Fig. 1in front of the upperside-and acts with its entire pressure up to the feed-passage, While the rotation of the plain disk isolosed through the slide 14. From this point the expansion takes place up to the maximum expansion admissible in the chamber until the medium of power has thus filled out the chamber 6 in Fig. 2 and then passes through that-roughpassage 1', overflow-passage 10, and through the trough-passage 5 into the sickle-shaped chamber r in front of the next slide in order there to act again in the same manner. When it has acted there, it is finally discharged through the passage 11,.and this action takes place on both sides of the plain disk-that is to say, in. each half .of the casing.

If such a motor be operated by steam, it may also work by condensation but the mo- IIO tor remains a compound motor immaterially whether the driving be effected by means of steam, gas, or compressed air.

Having thus described my invention, the following is what I claim as new therein and desire to secure by Letters Patent:

1. A rotary motor comprising a drivingshaft, a casing having a feed-passage, a discharge-passage, a core formed with an extension to the feed-passage and with a segmental recess at its inner end with which the extension communicates and located eccentrically on the driving-shaft and an annular chamber located eccentrically to the driving-shaft, the shaft extending through the core provided with a segmental slide located in the segmental recess, a rotary disk having feed-passages in its face, and an annular ring located concentrically to the driving-shaft, and dividing the annular chamber into sickle-shaped working chambers located within and without the annular ring, the slides working radially through the annular ring and the slide-rings loosely mounted on the core; each slide-ring being connected with a slide; substantially as described.

2. A rotary motor comprising a drivingshaft, a casing having feedpassages, discharge-passages, cores each formed with an extension to the feed-passage, and with a segmental recess at its inner end with which the extension communicates, and located eccentrically on the drivin g-shaf t and to each other and annular chambers located eccentrically to the driving-shaft and to each other, the shafts extending through the cores each provided with a segmental slide located in the segmental recess, a rotary disk having feed-.

passages on its faces, and annular rings located concentrically to the driving-shaft and dividing the annular chambers into sickleshaped Workin g chambers located within and without the annular rings, the slides working radially through the annular rings and the slide-rings looselymounted on the cores; each.

slide-ring being connected with a slide; substantially as described.

3. A rotary motor comprising a drivingshaft,a casing,a feed-passage, a trough-shaped passage, a transfer-passage, a transmissionpassage, a discharge-passage a core formed with an extension to the feed-passage therethrough, and located eccentrically on the driving-shaft, and an annular chamber located eccentrically to the driving-shaft, a rotary disk having feed-passages in its face, and an annular ring located concentrically to the driving-shaft, and dividing the annular chamber into sickle-shaped working chambers located within and without the annular ring, the slides working radially through the annular ring, and the slide-rings loosely mounted on the core; eaclr slide-ring being connected with a slide; substantially as described.

4. A rotary motor comprising a drivingshaft, a casing, a feed-passage,a trough-shaped passage, a transfer-passage, a trough-shaped transmission-passage,a discharge-passage, a core formed with an extension of the feedpassage therethrough and with a segmental outlet-recess, and located eccentrically on the driving-shaft, and an annular chamber located eccentrically to the driving-shaft, a rotary disk having feed-passages in its face, and an annular ring located concentrically to the driving-shaft and dividing the annular chamber into sickle-shaped working chambers located within and Without the annular rings, the slides working radially through the annular ring, the slide-rings loosely mounted on the core, each slide-ring being connected with a slide, the shaft extending through the core, having. at its inner end a segment-slide located in the segmental recess, and at its outer end a setting-lever; substantially as described.

5. A rotary motor comprising a drivingshaft, a casing having a feed-passage, a discharge-passage, a core located eccentrically on the driving-shaft, and an annular chamber located eccentrically to the driving-shaft, a rotary diskhaving feed-passages in its face and an annular ring located concentrically to the driving-shaft, and dividing the annular chamber into sickle-shaped working ch ambers located within and Without the annular ring the oscillating bolts having slots and mounted in the annularring, the slides working through the slots in the oscillating bolts and through the annular ring, and the sliderings loosely mounted on the core; each slidering being connected with a slide; substantially as described.

6. A rotary motor comprising a drivingshaft, a casing having two parts adjustable toward each other on the driving-shaft, and having feed passages, discharge passages, cone-shaped cores located eccentrically on the driving-shaft and to each other, and annular chambers, cone-shaped in radial section and located eccentrically to the driving-shaft and to each other, a rotary disk having feed-passages on its faces and annular rings coneshaped in radial section and located concentrically to the driving-shaft and dividing the annular chambers into sickle-shaped work- .ing chambers located within and without the annular rings, the slides working radially through the annular rings, the cone-shaped slide-rings loosely mounted on the cores; each slide-ring being connected with a slide, and a packing-ring fittingin the annular grooves of the two parts of the casing; substantially as described. A

7. A rotary motor comprising a drivingshaft having conical projections, the bearingbushes adjustable on the conical projections, a casing having feed-passages, discharge-passages, cores located eccentrically on the drivingshaft and to each other, and annular chambers located eccentrically to. the drivingshaft and to each other, a rotary disk having feed-passages on its faces and annular rings located concentrically to the driving-shaft ICC 4 e45,4.er

and dividing the annular chambers into sickle-shaped working chambers located within and without the annular rings, the slides Working radially through the annular rings and the slide-rings loosely mounted on the cores; each slide-ring being connected with a slide; substantially as described.

8. A rotary motor comprising a driving shaft, a casing formed in two parts mutually displaced diametrically in such a Way that they stand eccentrically vertically to one another, each part having a feed-passage, a discharge-passage, a core provided with an cecentric extension to the feed-passage and located eccentrically on the driving-shaft, and an annular chamber located eccentrically to the driving-shaft, a rotary disk, having feedpassages in its faces and annular rings lo-' cated concentrically to the driving-shaft, and dividing the annular chambers into sickleshaped working chambers located within and without the annular rings, and the slides working through the annular rings and each having a slide-ring loosely mounted on its core; substantially as described.

9. A rotary motor comprising a drivingshaft, a casing formed in two parts mutually displaced diametrically in such a way that they stand eccentrically vertically to one another, each part having a feed-passage, a discharge-passage, a core provided with an eccentric extension to the feed-passage and located eccentrically on the driving-shaft, and an annular chamber located eccentrically to the driving-shaft, plain rings providing an inner Wall to each annular chamber, means for adjusting the plain rings, a rotary disk having feed-passages in its faces and annular rings located concentrically to the drivingshaft, and dividing the annular chambers into sickle-shaped working chambers located within and without the annular rings, and the slides Working through the annular rings, and each having a slide-ring loosely mounted on its core; substantially as described. 10. A rotary-motor comprising a drivingshaft, a casing formed in two parts mutually displaced diametrically in such a way that they stand eccentrically vertically to one another, each'part having a feed-passage, a discharge-passage, a core provided with an eccentric extension to the feed-passage and located eccentrically on the driving-shaft, and an annular chamber located eccentrically to the driving-shaft, a rotary disk having feedpassages in its faces and annular rings located concentrically to the driving-shaft, and dividing the annular chamber into sickleshaped working chambers located within and without the annular rings, means for adj usting the annular rings radially, and the slides working through the annular rings, and each having a slide-ring loosely mounted on its core; substantially as described.

11. A rotary motor comprising a drivingshaft, a casing having a feed-passage, a discharge-passage, a core formed with an extension to the feed-passage and with a segmental recess at its inner end with which the extension communicates andan annular chamber, the shaft extending through the core provided with a segmental slide located in the segmental recess, a rotarydisk having feedpassages in its face, and an annular ring, and the slides working radially through the annular ring; substantially as described.

The foregoing specification signed at Halle, Germany, this 22d day of September, 1898.

- KARL. THOMANN. In presence of- O. H. DAY, HENRY HASPER.

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