US1334252A - Rotary engine - Google Patents

Description

e. A. LONG. ROTARY ENGINE.

' APPLICATION FILED APR. 23, 1919. 1,334,252. Patented Mar. 16,1920.

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'AT'roRN EY G. A. LONG.

ROTARY ENGINE.

APPLICATION FILED APR-23, 1919. 1,334,253. 7 Patented Mar.16,1920.

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ATTO R N EY GEORGE A. LONG, OF SCRANTON, PENNSYLVANIA.

ROTARY ENGINE.

Specification of Letters Patent.

Patented Mar. 16, 1920.

Application filed April 23, 1919. Serial No. 292,016.

'1 '0 all whom it may concern:

Be it known that I, GEORGE A. Lone, a citizen of: the United States, residing at Scranton, in the county oi Lackawanna and State oi Pennsylvania, have invented a new and useful Rotary Engine, of which the following is a specification.

This invention has reference to rotary englues, and its object is to produce a rotary.

engine which will work efficiently with any suitable motive fluid under pressure, such as air, gas, water, or steam.

In. accordance with the invention, it com prises a stator and a rotor with the stator inolosing the rotor and of considerably less width, while the rotor includes a circular course for fluid under pressure, which course is divided up by vanes into a circular series of pockets open at the periphery, so far as the rotor is concerned, but having their size defined peripherally by the stator. The rotor has a lateral spread on each side of the stator and the fluid course about the rotor is of elliptical. cross section with a circumferential radial neck. The fluid under pressure enters the elongated pockets of the stator through the neck, into which suitable ports lead and which ports are arranged in opposite directions to cause the reversal of the direction of rotation of the rotor. The spent material, after pertorming its work in the rotor, is directed into compartments gathering the spent material and arranged for its flow to a point of disposition. The arrangement may be such that the fluid under pressure, after having passed through one engine, may be utilized in another lower pressure engine to drive it.

The invention will be best understood from a consideration of the following detailed description taken in connection with the accompanying drawings forming part of this specification, with the understanding, however, that the invention is not confined to any strict conformity with the showing of the drawings, but may be changed and modified so long as such changes and modifications mark no material departure from. the salient features of the invention as expressed in the appended claims. 1

In the drawings j I Figure 1 is an elevation of one side of the engine, the engine shaft being shown in cross section.

Fig. 2 is an end elevation of the engine as seen from the right hand side of Fig. 1, showing the valve rod in cross section.

Fig. 3 is a vertical diametric section with some parts shown in elevation.

Fig. 4; is a vertical axial section with some parts shown in elevation.

Referring to the drawings, there is shown a "base 1 which may be constructed similar to the showing of the drawings, or may be otherwise constructed as desired.

Fast to the base 1 are pedestals 2, 3 re spectively, suitably spaced to receive the main portion of the engine and terminating at the upper ends in journal heads 4. Each head 4 carries a curved plate 5, in turn supporting a roller cage 6, which latter may be of any approved form or may be replaced by a ball cage instead of a roller cage. A journal, cap 7 is applied to the head t engaging the cage 6 on the side opposite the head 4, and clamp screws 8 serve to hold the parts in proper association. In order to adjust the plates 5, the head 4 has set screws 9 by means of which the antifriction bearings 6 may be adjusted up and down as needed.

The bearings 6 carry a shaft 10 constituting the engine shaft and in turn supporting a rotor 11. To avoid inordinate weight the rotor may be provided with radial spokes 12 carrying a rim 13 which, as best shown in Figs. 2 and 4, is relatively broad and correspondingly massive, the rim be ing broader than its radial extent. Within the rim there is provided a substantially elliptical channel 14; opening by a relatively narrow circumferential mouth 15 having side walls 16 projecting radially beyond the periphery of the body of the rotor. The channel 14 is not a continuous channel. throughout but is divided ofi' into numerous sections by means of radial walls 17 constituting abutment plates completely filling the channel crosswise. The elliptical cross sectional form of the channel 14 provides expansion space, especially for steam, so that the entering steam may have a jet action on the rotor through ducts or ports to be described.

Surrounding the rotor is a stator 18 of generally cylindrical shape and considerably narrower than the rotor so as to overhang, but to a little extent, the flanges 16 of the rotor. The stator is provided on each side with a circumferential groove 19 with the inner walls of the groove about flush with the is directed. from whereby the joints between the rotor and" stator may be; rendered fluid tight; However, the arrangement is such that the packingrings while held tight to" the stator do not/- press hard enough against the rotor flanges 16 to materially bind thereon.

Fast to thestator and. preferably at a high point thereonisayalve chest 23 containin slide valve and connected to a. pipe 25 for the introduction into the valve chest of fluid under pressure. Such fluid may be any fluid adapted for the purpose and'steam maybe taken. as a convenienteXa-mple of fluid under pressure and will hereinafter be considered, as the. motive fluid, without, however, any. limitation to such particular fluid.) 'Ilhev valve. chest 23'is provided with astuifing box 26 and'fthevalve is connected to a valve rod' 27 extending through. the stufiinggboxa Leadingrfrom the valve chest 23 diagonally t0 the channel 14 are passages or ports 2 8', the passages being oppositely directed froinan. intermediate point of the valvechest so 'thateither port may beutilized to conduct steam from the valve chest intothe channel 14, but not both at the same time. The ports 28" are arranged substantially. tangentially to the curvature ofthe chalniel 14-so-that steam or, other fluidunder pressure entering the valve chest is directed against-the blades or vanes 17 at about right angles thereto, whereby the force of the propellingfiuidtis exertedupon thevanes at the most advantageous angle.-

('lonsidering the valve chest and' ports 28 as located at the upper part of the engine, althoughnot necessarily sov located, the cas- 18 is provided diametrically opposite from'the. ports 28 witli enlargements or expansions 29 each inclosing. a. chamber- 30 w-ith a relatively large mouth portion 31 aindgtapering toan. outlet. pipe through wlfich-thezused fluid-under pressure may escape; Between the chambers 30 the caslng has a circumferential continuation 33. sepanatingionechamber tromthe other. The enlargements-29 drop below the-casing continnmtion- 33 and. extending; into thespace betweentheenlargements 29 is a pedestal 34 constituting a; support forv the stator and risingfromtheb'ase- 1Q. Straps 35' are providedttohold thestator on the pedestalv 3,4

and these straps are secured'to-the, pedestal byrbolts:36. Of course other means may be provided for the purpose.-

VVhensteam or other fluidunder. pressure 7 W the pipe- 25] into thevalve chest--23 it willfinditgway. through one of theportsj28, sayithelezfbhand port in. Fig. 3,

i into the channel. 14. and, impinging against the vane 17in its path. The result is that the rotor is given an impulse to rotate in a. left hand or counter-cloclm'ise direction in the showing of Fig. 3. While the vanes are separated to a considerable extent cirrinni er'entially of the rotor they are suiliciently close together to revent steam fronipassing directly from the port 28 to the chamber 30 in the'dire'ction of rotation. The pockets or compartments in the rotor are sulliciently extensive circumferentially to cause the impact of the fluid under pressure to continue its action throughout the greater portion of the. distance between the intake port and the chamber-30in order, so that any liability ol deadspace is reduced to a-niinimuin. More'- over, the exhaust ports represented by the chambers 30 are elongated so that no nuderial back pressure is established,-or only such pressure is present in the chambers 30'a'nd outlet pipes 32 as may be utilized to drive another similar engine of low pressure instead of high pressure type.

Aboutone-half oftho engine is utilized in the. rotative eli'ort in one direction so that the engine may be readily reversed by shifting. the slide valve Zito bring the other port 28 into action instead of th'e port first consideredl What is claimed is 1'. A rotary engine comprising a stator with. inlet ports therein and havingenlargerl chambers remote from the inlet ports to re ceive the spent fluid under pressure, and a rotor mounted concentrically with the stator and provided with a circumferential channel with blades separatingthe'channel into sections, the rotor having the channeled portion expanded laterally beyond the side margins of the stator.

A rotary engine comprising a. stator and a rotor mounted within it; the rotor having. a 01 rcumferential' channel of elliptical cross section with a radial mouth portion directed toward the stator-and saidv stator constitutinga closure for the mouth portion fora. part of its length, the rotor extending laterally beyond the sides of the stator whereby to provide for inertia eflbct inthe rim portion ofthe rotor despite the presence of the channel and to the width of the stator.

3LA rotary engine comprising a stator and a rotor interior tothe stator; the rotor being of greater w idthaxially than the stator and provided with a rim having a later ally expanded channel therein opening'ciroumferentially toward the stator'and provided with division walls or blades in the channel to form circumferentially extended sections, the stator having means to direct fluid under pressure into the channel otthe. rotor and also'having circnmferentially extended outlets for spent flhid undcr permit reduction of ill) shaped stator with inlet ports and a valve controlling them, and also provided with enlarged outlet ports in remote relation to the inlet ports, and a rotor interior to the stator, said rotor being wider than the stator and provided with a circumferential channel divided by equidistantly disposed radial blades or vanes into circumferentially elongated sections, the channel in the rotor being of greater width than height.

A rotary engine comprising a ringshaped stator with inlet ports and a valve controlling them, and also provided with enlarged outlet ports in remote relation to r the inlet ports, and a rotor interior to the stator, said rotor being wider than the stator and provided with a circumferential channel divided by equidistantly disposed radial blades or vanes into circumferentially elongated sections, the channel in the rotor being of greater width than height, and the channel in the rotor being also provided with a circumferential mouth portion of less width than the channel and opening toward the inner wall of the stator.

(3. A rotary engine comprising a stator and a rotor interior thereto, the stator having means for the passa e of fluid under pressure to the rotor and with circumferentially extended outlet ports and chambers of like extension into which the ports lead, with said chambers contracting to the outlet ends, and the rotor having a peripheral portion wider than the stator and containing a laterally widened circumferential channel with a mouth portion opening toward the stator and with vanes or blades dividing the channel into sections, the blades being circumferentially spaced to cause a section of the channel to reach the discharge port before the next succeeding section of the channel has passed the corresponding inlet port.

7. A rotary engine comprising a stator with inlet and exhaust ports on opposite sides, the exhaust being elongated circumferentially and enlarged into expansion chambers, and a rotor mounted interior to and concentric with the stator and provided with a circumferential channel with blades separating it into sections and said channel be ing expanded laterally beyond the side margins of the stator with the rotor also ex panded laterally to provide an inertia rim, the channel in the rotor having a radial mouth portion provided with side walls or flanges arranged on opposite sides of the body of the stator, and packing means carried by the stator in engagement with the side walls or flanges of the rotor with the rim of the rotor extending laterally beyond the corresponding sides of the stator and the packing means.

In testimony that I claim the foregoing as my own, I have hereto afiixed my signa ture.

GEORGE A. LONG.

Witnesses:

JOHN J. DAVIS, THOMAS E. PRICE.

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