US492360A

US492360A - meyer

Info

Publication number: US492360A
Authority: US
Publication date: 1893-02-21
Anticipated expiration: 1910-02-21

Description

(No Model.)

F. MBYERJ. S. KIEHL 8u A. GRANT.

d5 sheets-4111@e1 1 1101111311 ENGINE. v

www Q a (im LJ 1 1 111 Patented-Peb. 21, 18113.V

IM ll 45 sheets-sheet 2.

P. MEYER, J.` S. KIEHL 85A. GRANT. ROTARY ENGINE.

(No Model.)

5 Sheets-,Sheet 3. I'. MEYER, J'. S. KIEHL'ZSU A. GRANT.

[mism .Patented Peb. 21, 1893.

lzlllllll WWW. mm@ )www W\W/ Y* RUTARYENGINB.

(No Model.)

(No Mom.) 5 sneetsfsheet 4.

F. MEYER, J. S. KIEHL 8v A. GRANT.

ROTARY ENGINE.

No. 492,360. Patented Feb. 21, 1893;

5 Sheets-Sheet 5. MEYER, J." S. KIEHL 8v A. GRANT.

RGTARY ENGINE.

Patented Peb. Z1, 1893.

(No Model.)

No. l492,360

NNN.

ilNiTED STATES PATENT OETTCE.

FREDERICK MEYER, JOSEPH S. KIEHL, ANI) ALEXANDER GRANT, OF CHICAGO,

ILLINOIS, ASSIGNORS TO THE DUPLEX ROTARY ENGINE COMPANY, OF SAME PLACE.

ROTARY ramener-1.V

SPECIFICATION forming part of Letters Patent No. 492,360, dated February 21 1893.

Application filed November 29, 1889. Renewed March 16, 1891. Serial No. 385.166. (No model.) l

`.To a/Z whom t may concern: ary block or abutment of the engine. Fig.

Be it known that we, FREDERICK MEYER, 7 is a transverse section ofthe said stationary J osEPn S. KIEHL, and ALEXANDER GRANT, block in the line 7-7 of Fig. 6, showing the of Chicago, in the county of Cook and State steam packing devices employed in connec- 5 of Illinois, have invented certain new and tion therewith. Fig. 7a isa plan view of one 55 useful Improvements in Rotary Engines; and of the outer or inner cross plates which form we do hereby declare that the following is a part of the packing devices applied to the full, clear, and exact description thereof, refstationary block shown in Fig. 6. Fig. 8 isa erence being had to the accompanying drawfragmentary section of the central revolving IO ings, and to the letters of reference marked -disk on the line 8 8 of Fig. l. Fig. 9 is a 6o thereon, which form a part of this specilicadetached view of a section or part of the antion. nular packing ring applied to each innertlange This invention relates to improvements in of the revolving disk. Fig. 10 is a detached rotary steam engines and more especially to View of a section of the annular packing ring I5 improvements upon the construction in such applied to each outer flange of thev revolving 6 5` engines set forth in our application for Letdisk. Fig. 1l is an enlarged fragmentary, inters Patent of the United States Serial No.` terior view of the engine, showing one ofthe 306,229, filed April 6, 1889, and allowed June radially sliding pistons, viewed edgewise, with 7, 1889. its attachments, andadjacent parts of the en- 2o The principal featureof improvement here-` gine. Fig. 12 is a section on the line 12-12 7c in pointed out consists in the duplex form of of Fig. 1l. Fig. 13 is a detail section in the the engine, the duplicated parts being ar- 4plane of the line 13-13 of Fig. 1 2. Fig. 14 ranged on opposite sides of a central revolv- Vis a detail section on the line 14E-14 of Fig. ing disk which is fixed .to the power trans- 2 and of Fig. 1l. Fig. l5' is a perspective a 5 mitting shaft and which is subject to an eftiview of one half of the revolving flanged disk 7 5 cient steam pressure on both sides thereof stripped of its accessories. Fig. 16 is a perso that end pressure upon the said shaft .spective view of one of the sliding pistonsdeis obviated wholly or in part and. the frictached. Fig. 17 is adetached View yof one of tion incident to such pressure is avoided orI the sliding pistons having a shoe pivoted 3o lessened. thereon, which shoe runs in the eccentric cir- 8o The nature of rour improvements will be cular groove of the cam by whichthe pistons understood from the accompanying drawings are actuated. Fig. 18 is an elevation showwhich show the duplex form of the engine toing the inner and eccentrically grooved face gether with several other features of improveof the cam by which the pistons are actuated,

35 ment that will be hereinafter referred to. a shoe of one of the pistons being shown in B5 Figure 1 is a vertical section in the plane of the eccentric groove and dotted lines indicatthe axis of the engine shaft. Fig. 2 is a vertiing the outer concentric portion of this cam cal section transverse to the shaft, in the indiplate which, in the construct-ion shown in secrect line 2-2 of Fig. 1. Fig. 3 is asection in -tion in Figs. l and 3, passes through the side 4o the plane of the axis of the shaft and on the plates of the engine. Fig. 19 is a detail re- 9o line 3 3 of Fig. 2. Fig. 3f is a vertical seclating to the packing. tion transverse to the shaft in the line Ein-3a The arrows applied to the several section of Fig. 1 but showing only the simple elelines indicate the direction in which the sevments of the engine without adjunctive deeral sections taken on said lines are viewed.

45 tails. Fig. t is a horizontal section of the A represents a shaft which is to be driven 95 valve mechanism on the line L -4. of Fig. 2. by the engine. Fig. 5 is a fragmentary section on the line B B are parallel disks or side plates form- .5-5 of Fig. et, cutting one of the side plates ing the lateral walls of the inclosure which of the engine and showing the parts therein. contains the rotating parts of the engine, C

5o Fig. 6 is a detached side view of the station- C being the annular or peripheral plate which rco is placed between the sideplates B B and surrounds the revolving parts of the engine.

D is a circular disk having annular flanges D and D2, and keyed or otherwise fastened to the shaft A between the side plates B B. This disk is seen detached in Fig. l5.

E E are two segmental blocks secured to the side plates and reaching inwardinto contact with the disk D in the spaces d d between the annular flanges of said disk, which spaces form the steam chambers of the engine.

D D are the annular and cylindrical flanges at the margin of the disk D and running outside of the fixed blocks E, and D2D2 are similar annular and cylindric flanges of the disk D, concentric with the flanges D and revolving inside the fixed blocks E E.

F F are radially sliding pistons arranged to slide through transverse slots (l, in the inner flanges D2 so as, in certain parts of their revolution, to extend across the space d between the flanges D and D2 and at other points of their revolution to be retracted inwardly out of said space in order that they may pass the fixed blocks E E.

B B are fixed cams, here shown as forming part of the side plates B and provided with circular grooves b eccentric to the shaft A and engaged with the pistons F F for produciug the radial sliding movements of said pistons.

F F are curved shoes fitted to the grooves b and pivoted upon journalsf on the inner ends of the pistons F F.

G is a valve chest through the valve seat of which lead the ports g g and g2, the ports g and g being branched to connect with both the annular spaces d d (between the flanges D and D2) at opposite ends of the fixed blocks E E, one at one end and the other at the other end of said block, and the port g2 (leading from the valve chest between the ports g g) communicating with the exhaust pipe H. The steam chest receives steam through the port g3 which connects with the inlet pipe I. It willl be observed that the spaces d are separate chambers, not in communication with each other, and have independent inlet and exhaust passages, by means of which each side of the engine has a separate and efficient steam supply and exhaust.

G is a sliding D-valve arranged within the valve chest and adapted to open either of the ports g g for the admission of steam to the engine while giving communication (through the recess g4 of the valve) between the other of said ports and the exhaust port g2. The valve chest G, when asingle one is employed, is desirably placed on the periphery. of the engine and the bifurcations of the ports g g are prolonged in the side plates B B, as indicated by dotted lines in Figs. 2 and 4 and by the sectional Fig. 5.

J is a hand lever for moving the valve G said lever being pivoted to the rodj ofthe valve G and fulcrumed in any suitable manner, as for example, by the link j which connects its lower end with the casting of the valve chest.

The pistons F F are of such number that at least'one of them on each side of the disk D will always be extended across the space d in the lower or longer arc between the inner ends of the ports g g and the steam will inanifestly act upon this piston to cause the rotation of the disk D and the shaft A, since the block E forms a fixed abutment preventing movement or escape of steam in the opposite direction. In the drawings four pistons F are shown in each side of the engine. In connection with the circular form-of the cam groove b a slot or recess d2 is formed in the inner surface of the outer cylindric flange D for the admission of the end of each of said pistons. It is to accommodate the slots d2 of suitable depth that the said outer ange D is made of the thickness indicated. The protrusion of the outer ends of the pistons F into the recess d2 is obviously a necessity in the use of circular cam grooves b for the actuation of said pistons where the shaft and disk are concentric with the shell or casing while the circular cam groove is eccentric with relation to the said shaft, disk and shell, as in the construction which we have devised. But the circular form of' said grooves is desirabe for two other reasons; rst, to give an easier motion to the pistons and, second, to permit the use of the shoes F', pivoted to the pistons and fitted to the grooves. These shoes obviously require the grooves b to be circular.

The number of the pistons may be varied and a valve of other form than that shown may manifestly be employed without departure from our invention.

Any suitable packing devices may, for the general purposes of our invention, be employed to give tight joints between moving surfaces. We have, however, devised certain forms of metal packings which we have found efficient and durable and they are herein illustrated and next described. First describing the packing applied to the free edges of the flanges D and D2 of the disk D, to run in contact with the side plates B B, K K are parts of metal rings sectionally in the angular form seen in Fig. 3 and applied to the inner edge of the outer flange D and to the outer edge of' the inner flange D2 so that they run in contact with the fixed block E as well as in contact with the adjacent side plate B. Behind these segmental packing rings are placed springs k of any suitable form arranged to throw them outward toward the side plates B. To cut off passage of steam between the inner edges of these angular packing rings and the body of the flange to which they are applied and past the stationary abutment or block E, small xed blocks K (Fig. 19) may be set across this passage flush with the surface of the flange. These IOO segmental packing rings extend on the flange D from one slot cl2 to the next one and on the flange D2 from one slot CZ to the next, as indicated in Fig. 2. The diskD has radial grooves d2 in which the inner edges of the pistons are fitted to slide. In the bottoms of these grooves are placed metal packing strips K2 bearing againstthe edges of the pistons. In the sides of the slot d of the inner flange D2 are placed the metal packing strips K3 (Figs. 1l and 13) backed by springs lc', as shown in Fig. 13. The fixed blocks or abutments E have transverse packing bars such as are shown in Figs. 6, 7 and 72. That is to say, on the edge of the said fixed blocks which runs in contact with the bottom of the groove d between the flanges D and D2 is a T-shaped block K4, forced outward by springs, indicated at 71:2 of Fig. 7, and on the outer and inner surfaces of said fixed blocks are placed plates K5 notched at one of their ends to overlap the arms of the T-shaped block K4 and backed by springs k2 which force them outagainst the flanges D D2.

Other forms of packing devices may be employed without departure from our invention.

As a matterof convenience in construction the cams B are made separate fromthe side plates B and have the concentric portions b which fit openings in the side platesB around the shaft, the cam portion b2 being of greater diameter and standing inside the plane of the inner surface of said side plates. The parts B are secured from rotation in the parts B by means of screws Z13 let into holes drilled at the meeting edges of the parts B B.

B2 B2 are Vexternal plates surrounding the shaft and screwed to the side plates B, as

shown clearly in Fig. l, forming the outer walls of stuffing boxes of which B2 are the glands. A

Various modifications can be made in the details of construction above described and we therefore do not limit ourselves to the particular form of details shown.

Obviously a separate valve may be provided for the admission and discharge of steam to and from each side of the engine, and steam admitted to one side may be under a different pressure from that admitted to the other. It follows that one side of the en` gine may be connected to take the exhaust steam from the other side, and thus the engine, as a whole, become a compound engine. Of course this would require the proper enlargement of one compartment to a greater size than the other. It is also obvious that some features of improvement herein described, as for example, the circular eccentric groove b in combination with the pistons pro-A vided with pivoted shoes fitted to said groove, may be employed in the single form of our engine shown in our former application as well as in the duplex form herein illustrated.

IVe claim as our invention Y 1. The duplex rotaryengine described, consisting essentially of a stationary shell supporting fixed blocks from its opposite sides and also supporting interior cams, an axial, rotatable shaft, a disk mounted on said shaft, k peripherally and laterally inclosed within the shell, and provided with separate, circular steam chambers, having independent inlet and exhaust ports and containing the xed blocks, and sliding pistons operated by the cams, whereby said pistons are retracted to 75 pass the fixed blocks and are advanced after passing the same, substantially as described.

2. The combination, with a stationary shell and a revoluble shaft concentric with said shell, of a circular disk concentrically mounted on said shaft within the shell and provided with concentric flanges, with an intermediate annular steam groove, and with radial piston slots extending into the outer flange, a stationary abutment supported by one side of the shell between the flanges of the disk, a fixed cam provided with an eccentric circular groove, and radially sliding pistons engaging said eccentric circular groove and adapted to be projected across the steam groove into the piston slots in the outer flange of the disk all constructed and arranged substantially as described, and shown.

3. The combination, with a stationary shell and revoluble shaft concentric with said shell, 95 of a circular disk mounted on said shaft within the shell and provided with concentric flanges, with an intermediate annular steam groove, and with radial piston slots extending into the outer flange, a stationary abutment supported by one side of the shell between the flange of the disk, a fixed cam provided with an eccentric circular groove, and radially sliding pistons, adapted to be projected across the steam groove into the piston slots in the outer flange of the disk, and having pivoted shoes of an equal width throughout their length, said width being equal to the width of the groove, and having a curvature corresponding with that of the groove, so as to ll and fit the same all constructed and arranged substantially as `described and shown.

In testimony that we claim the foregoing as our invention We affix our signatures in presence of two witnesses.

FREDERICK MEYER. JOSEPH S. KIEI-IL. ALEXANDER GRANT.

Witnesses: M. E. DAYTON, P. H. T. MASON.