US748861A - guindon - Google Patents

Description

PATENTBD JAN. 5, 1904.

A.VGU1ND0N. ROTARY ENGINE.

APPLICATION FILED JUNE 5. 1901. RBNEWED JUNE 8, 1903.

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PATBNTED JANlI, 1904.

A. GUINDON. ROTARY ENGINE.

APPLIOATION FILED JUNI! 5., 1901. BENEWBD JUNE 8. 1903,

Kiwa( UNITED. 'y STATES Patented January 5, 1904.

ARTHUR ouin-DON, or MONTREAL, CANADA.

ROTARYVENGINE.

srs-:cinnamon forming para er Lettere Patent No. 748,861, dares January 5, 1904.l Application filed June 5, 1901. Renewed J une 8, 1903. Serial No. 160,638. (No model.)

To all whom 7115 may concern: j

ABe it known that. I, ARTHUR GUINDON, a subject of His Majesty theKing of Great Britain, residing in the city and district of Moutreal, Province of Quebec, Canada, have invented certain new anduseful Improvements in Rotary Engines; `and I do hereby declare that the followingV is a full, clear, and exact vzo description of the invention, such as will er1- able others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in rotary engines of that class in .which a rotary eccentric-piston is equipped with radiallymovahle wings, which are exposed to the pressure of the motive fluid, as fully disclosed in a prior application for Letters Patent of the United States, tiled by me December 28, 1900, Serial No. 41,314.

The objects of the present invention are to provide means for reducing the friction and wear between the. revoluble and the slidable members forming the eccentric-piston, to pro.- vide means between the slidable piston meniber and the engines cams which are calculated to absorb some ofthe friction .and wear and allow for renewal of the working parts at a minimum cost, to red nce the friction and Wear between the slidable piston memberaud the cam-actuated shiftable controller, and to"v gine, illustrating one type of valve, the plane' of the section being indicated by the dotted line 1 1 on Fig. 2, Fig. 2 is a vertical centrai longitudinal section through. the engine. Fig. 3 is a vertical cross-section through the engine shown by Figs. 1 and 2, except that the cylinder'is provided with a valved reversing mechanism and that the rotary eccentricpiston occupies a. position turned one-quarter vverse axis of the cylinder.

Vof the Way around. Fig. 4e is a detail perspectiive view, partly broken away, of one of the roller-bearing plates and the backingplate provided therefor. Fig. 5 is a detail perspective view of the revoluble member forming a part of the eccentric-piston. Fig. 6 is a sectional view, partly broken away, showing about a half of the slidable piston member. Figs. 7 and 8 are views in side and edge elevation, respectively, of the shiftable controllerwhich is actuated bythe cam of the engine and serves to positively govern the slidabl-e member of the revoluble eccentric-piston. Fig. 9 is'an enlarged detail view of a portion of the roller-bearing adapted to be interposed between the shiftable controller is closed at its ends bymeans of the heads 6,

and this cylinder is provided with a valvechest 7, which may be constructed as shown by Fig. 1 or as represented by Fig. In the former figure a single rocking valve 8 controls the inlet of the live motive liuid to the working chamber of the cylinder; but in Fig. 3 the valve-chest is equipped with the reversing-valves 9,A in addition to vthe vcontrolling-valve 8, for the purpose of admitting `"the motive iiuid to the cylinder in a manner to drive the piston'in eitherdirectiou, all as will'more clearly appearin my prior application, to which` reference has been made.

The cylinder-heads 6 are provided in their opposing 'faces with the cam grooves lO, which produce the stationary cams 11 of the engine, said cams being arranged in corresponding positions and eccentric to the trans- The cylinderheads are furthermore provided with openings through which passes the engine-shaft 12, the same being fast or integral with the revoluble member 13 of the eccentric-piston. Said piston member 13 is preferably cast in a single piece of metal in the form shown more clearly by Figs. 1, 3, and 5, and in order to reduce the weight of this piston member I prefer to form it with the longitudinal passages 14, which are so arranged as to leave an intermediate solid web 15. Through this piston member and its web is formed a diametrical slot 16, that extends entirely across the piston, so as to open through op posite faces thereof, and which is of snflicient width to accommodate a freely-slidable piston member 17. As shown by Figs. 1, 2, 4, and 6, this piston member 17 is in the form of a single solid plate, the width of which is less than the slot 16, and the' end portions of this single plate are provided with recesses 18, (see Figs. 1,3, and 6,) said recesses receiving the slidable plates 19,'to which are loosely connected the piston-shoes 20,the latter arranged to frictionally ride against the lining 21 of the cylinder.

While the described construction of the plates 19 and the piston-shoes 2O may be employed, I prefer to adopt the construction represented by Fig. 11, in which a slidable piston member 17 is provided at each edge thereof with a circular bearingrecess 22, the same loosely receiving the turning bearing-plate 23, whichis circular in cross-section and arranged to loosely fit in the recess 22, so as to be free to turn easily therein. This turning plate 23 is equipped with a recess or slot 24, that loosely receives the shank 25 of the piston-shoe 26. The engine which forms the subject-matter of this application is of the class known as a high-powered and fastspeed engine, and in the practical service of the piston member 17 and its shoe 26 the latter will be made to ride against the cylinder-linin'g 21 by centrifugal energy. To keep the piston-shoe in engagement with the cylinder when the engine is not in motion, I employa light spring 27, which is adapted to im pel the piston-shoe outwardly from the member 17, said spring being housed or contained in the slot 24. It is evident that the piston-shoe 26 is arranged for its shank 25 to play freely in the slot ofthe bearing-plate 23 in order that the piston-shoe may have a radial movement with respect to the rotary eccentric-piston; but by employing acircular bearing-plate 23, which is fitted in a correspondinglyshaped recess of the piston member 17, the pistonshoe practically has a pivotal connection with the piston member 17, because the plate 23 is free to turn in the recess 22, and hence the piston-shoe will easily conform to the curvature of the cylinder. To allow the singleplate piston member 17 assuming` the position of a chord or of a radius to the revoluble piston member 13, it is necessary that the plates 19 and the shoes 2O shall have a certain amount of movement with respect to the piston member 17 and also that the shanks 25 of the piston-shoes 26 shall have the same amount of travel in the bearing-plates 23 when the construction shown by Fig. 11 is adopted.

I have provided the eccentric-piston with means for preventing the passage of the motive fluid through the slot 16 in which travels the piston member 17, and according to this part of the invention I provide a series of cut-off plates 28. (See Figs. 1, 5, and 1l.) Each cnt-0E plate is fitted in one ot' a series ot longitudinal slots 29, which is provided in the cylindrical shell of the piston member 13, so as to open into the diametrical slot 16 thereof, and thereby enable the cut-oft' plates 28 to lie near the ends of the piston member 17, this description being applicable to each of the cut-olf plates. A series of pressuresprings 30 are housed in each longitudinal slot 29 of the piston member 13 and seated against one of the cut-off plates 28 so as to normally force the latter toward the slidable piston member 17, and each plate 2S is provided with a curved recess 31, (see Fig. 10,) said recess receiving the curved edge of a sole-strip 32, which has a tlat face that is arranged to ride against the slidable piston member 17. The employment of the series of plates 28, disposed in engagement with the lateral faces of the piston member 17 1 1ear the ends thereof, effectually excludes the admission of the motive fluid into the slot 16 or other portion of the piston member 13, and the sole-strips 32 of these cut plates easily conform to the motion of the piston member 17, and they absorb some of the friction and wear that takes place between the parts, and they also allow for the convenient renewal of worn parts at a minimum cost.

To facilitate the easy and free movement of the piston member 17 within the piston member 13, I have provided certain rollerbearing devices between the two members of the eccentric-piston, and the rollers of said bearings are shiftably confined in contact With the piston member 17, which is designed IOO IIO

to have a limited slidable travel in the piston member 13. Said piston member 13 is furthermore provided with recesses forming the seats 33 on opposite sides of the diametrical slot 16, and these seats are occupied by the backing-plates 34 and by the bearing-plates 35. One bearing-plate and one backing-plate are united by screws, as at 36n in Fig. 4, and the two connected plates are fitted in one of the seats 33 of the piston member 13, and in like manner the other connected plates 34 and 35 are seated in the other seat 33 on the opposite side of the slot 16, whereby the two hearing-plates 35 are disposed in opposing relation. Each bearing-plate is formed with two series of short longitudinal slots 36 36, in which are loosely confined the bearingrollers 37, the diameter of said rollers exceeding the width of the slots. The rollers are noty journaled in the bearing-plates, but they are free to have a limited movement in the slots 36, and said rollers are arranged to travel against the backingfplates 34 and to have frictional engagement with the exposed faces of the piston member 17, whereby the latter is properly supported within the piston member 13 to have siidable movement therein. By reference to Fig. 3 it will be noted that the bearing-plates and the roller-bearings are disposed within or between the group of cutoff plates 28. v

The width of the siidable piston member 17 is equal to the space between the adjacent ends ofthe members forming the engine-shaft 12, (seeFig. 2,) and in order to make the exposed end portions of this piston member 17 equal in width to the chamber between the cylinder-heads 6 I provide said member 17 with the wings 38, the latter being applied to the edges of the member 17 andsecured rmly thereto by the countersunk screws 39. (See dotted lines in Fig. 6.) The wings of the.

pair at each end of the piston member 17 are provided in opposing edges with the recesses 40, and said wings are furthermore provided with the sockets 41. (See Fig. 9 and dotted lines in Fig. 6.)

In the cam-groove 10 of each cylinder-head is arranged the shiftable controller 42, the same beingarranged to lit snugly to the cam 11 in order to be shifted thereby, and said controller having operative connection with the piston member 17 for the purpose `of positively giving the necessary slidable movement thereto during the rotation of the eccentric-piston as the element which is acted upon by the motive fluid in the high-powered fast-speed engine. Each shiftable ec centric is made in the form approximately of a ring or collar, as shown more clearly by Figs.' 7 and 8, and said collar is bisected, so as to form the sections 422', which are provided kwith the lugs 43, that are secured together by the bolts or screws 44, whereby the sectional controller has its members separably united together in order to facilitate the application of the controller to the cam 11. The controller has a circular opening which conforms in diameter to said cam 1l, and said controller is adapted to snugly fit upon the cam in a manner to permit thecontroller to have free rotary movement on the cam. An important feature in the construction of the controller consists in the formation of parallel straight recesses 45 in that face of the controller which is opposed to the wings 38 of the piston member 17, and these recesses form parallel tracks or ways 46, against which are adapted to ride the shoes of certain roller-bearin gs to be presently more fully described. The major portion of each controller 42 is snugly fitted in acain-groove 10 of one of the heads; but the formation of the tracks or ways 46 reduces the diameter of one side of the controller, whereby the reduced portion is adapted to project beyond vthe inner face of the cylinder-head in order to make the tracks or ways 46 lie close to the edges of the wings 38 and to expose them to the roller-bearings. Two of the roller-bearings are provided at each side of the piston member, ,and one of these roller-bearings is disposed in coperative relation to one of the Wings 38 on the piston member 17 and to one of the tracks or ways 46 of the shiftable controller. Each roller-bearing consists of a bearing-plate 47, having a tang 48, that is slidably fitted in the socket 41 of one wing 38, and in the other edge of this bearingplate 47 is provided the recesses 49, arranged to tightly receive the'rollers 50, the latter being interposed between the plate47 and the shoes 51. I prefer to equip each rollerbearing with twoshoes 51 and with two rollers 50, as shown by Fig. 9. Itis to be observed that the shoes 51 of the two rollerbearings are arranged to ride against the tracks or ways 46 of lone of the shiftable controllers, that the bearing-plates 47 of said roller-bearing have slidable engagement with the socketed wings of -the piston member 17, and that the rollers 50 of each rollerbearing'are normally kept in spaced relation to each other, whereby the parts aredis posed to adjust or accommodate themselves so as to take up the wear and the shoes 51 are free to move or turn in a manner to avoid cutting into or abrading the active faces of the tracks 46 on the shiftable controllers.

Changes within the scope of the appended claims may be made in the form andproportion of some of the parts, while their essential features are retained and the spirit ofthe invention is embodied. Hence I do not desire to be limited to the precise form of all the parts vas shown, reserving the right to vary therefrom. V

In the engine herein shown the steam is admitted toons side of the cylinder, so that the excessive friction comes on one side of the shaft; but I reserve the right to build a double or triple engine in order to equalize the friction on the shaft. In the double engine using a single shaft the steam is admitted in opposite directions, so as to make the friction come on opposite sides of the shaft; but the best results are secured by makinga triple 'engine in which the large cylinder is arranged between two smaller cylinders and the steam is admitted in one direction to the large cylinder and in an opposite direction to the two smaller cylinders, thus neutralizing the pressure and friction on'the shaft and redncingthe friction'to a very small degree. l

I also reserve the right to embody my improvementsin a compound engine in which 'the elements are operable to minimize vibration. This is attained by placing the large or double cylinder between two small engines and arranging the motive-duid inlets to the two smaller engines for the duid to pass thereinto in an opposite direction to the inlets for the duid to the middle large engine.

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Having thus described my invention, what I claim as new is l. In a rotary engine, the combination of a cylinder provided with stationary cams, a revoluble piston memberhavinga transverse slot, a single-plate piston member slidably fitted in said revoluble member, a shiftable controller between each cam and said slidable piston member, and groups of normally separated bearing-rollers operatively arranged to said controllers and shiftable for a limited distance with said slidable piston member, substantially as described.

2. In a rotary engine, the combination ofa cylinder provided with stationary cams, a revoluble piston member, a slidable piston member fitted to said revoluble piston member and having piston-shoes connected with the end portions thereof and arranged to ride against said cylinder, roller bearing-plates between the slidable and revoluble piston members, and bearing-rolls loosely conned in said bearing-plates and engaging with the slidable piston member, substantially as described.

3. In arotary engine, a slidable piston member provided with edgewise extensions, and roller-bearings shiftably confined in said eX- tensions of said piston member, combined with cylinder-cams, a shiftable controller arranged for the roller-bearin gs to travel thereon, and a revoluble piston member, substantially as described.

4. In a rotary engine, the combination of a cylinder provided with stationary cams, a revoluble eccentric piston member therein, another piston member slidably connected with the revoluble member and carrying the shiftable and separated bearing-rolls which are disposed in opposing relation, and shiftable controllers fitted to said stationary cams and interposed between said roller-bearings of the slidable piston member, substantially as described.

5. In a rotary engine, the combination with a revoluble piston member and a cylinder, of a slidable piston member having the wings,

. stationary cams within said cylinder, shiftable controllers fitted to said cams, and adjustable bearing-plates slidably connected with the wings of the slidable piston member and having means arranged to ride upon the shiftable controllers, substantially as described.

6. In a rotary engine, the combination with a revoluble piston member, and stationary cams within a cylinder, shiftable control- 1ers revolubly tted to said stationary cams and each consisting of members separably clamped together and provided with parallel tracks or ways, a slidable piston member, and roller-bearings fitted to said slidable piston member and arranged to ride upon the tracks or ways of the controllers, substantially as described.

7. In a rotary engine, the combination with a revoluble piston member, and stationary cams within a cylinder, of a slidable piston member provided with edgewise extensions, bearingplates connected with said extensions, shiftable controllers fitted to said cams and provided with the track-faces, and rollersupported shoes in operative relation to the bearing-plates and arranged to ride upon the track-faces of the controllers, substantially as described.

8. In arotary engine, a slidable piston member provided at its exposed edge with a bearin g-recess of circular cross-section, a bearingplate snugly fitted in said recess to turn therein and provided with a slot, and a piston-shoe having a shank slidably fitted in said slot of the bearing-plate, substantially as described.

9. In a rotary engine, the combination with a revolu ble piston member, and a slidable piston member, of a group of cut-off plates seated in said revoluble member and provided with sole-strips which engage with the faces of the slidable member, substantially as described.

l0. In a rotary engine, the combination with a revoluble piston member having a transverse slot, and a slidable piston member tted therein, of a group of cut-off plates slidably seated in the revoluble piston member and having the curved recesses, means for impelling said cut-off plates, and sole-strips tted in saidvrecesses of the cut-off plates to turn therein and provided with dat faces arranged to bear against the slidable piston member, substantially as described.

ll. In a rotary engine, the combination with a revoluble piston member, and a slidable piston member, of slotted bearing-plates secured in said revoluble member on opposite sides of the slidable member, and shiftable bearing-rolls conned in the bearing-plates and engaging with the slidable piston member, substantially as described.

12. In a rotary engine, the combination with a revoluble piston member having a slot, and a slidable piston member fitted in said slot, of slotted bearing-plates each provided with a backing-plate and fitted in the revoluble member on one side of the slidable member, and bearing-rolls loosely arranged in the slots of the bearingplates and arranged to travel against the backing-platesand the slidable piston member, substantially as described.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

, ARTHUR GUINDON. Witnesses:

. H. T. BERNHARD,

JOHN F. DEUFFERWIEL.

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