US1813316A - Rotary steam engine - Google Patents

Description

July 7, 1931- c. w. PHILLIPS 1,813,316

' ROTARY s'rmm ENGINE Filed April 1928 2 Sheets-Sheet l v 6%.Pilag ATTOR NEY Patented July 7, 1931 CLAIR w. PHILLIPS, or LYNCH, KENTUCKY '1 ROTARY. STEAM. n ivemn Application filed April s, 1928. Serial No. 267,928.

This invention relates to a rotary'engine of the reversible type and which is designed to be used with steam, the general object of the invention being to provide "a 'circularcasing having an outlet anda' pair of inlet ports, with a blade carrying rotor eccentrically arranged in the casing, projecting'the blades as the rotor moves out of contact with a part of the casing and valve means for controlling the inlet ports sothat the rotor can be made to rotate in either direction. j 1 p Another object of the invention is to provide pump means for lubricating the bear- 16 ings of the rotor. p Q

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illuszotrated in the accompanying drawings and specifically pointed out in the appended claim. I

In describing my invention in detail, reference will be had to the accompanying draw- I ings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 1s a sectional view through the improved engine. Figure 2-is a section on line 2-2 of Figure 1. i Figure 3 is a section on line 3-3 of Figure 1.

Figure 4 is a view of one of the blades of the rotor.

Figure 5 is asectional view showing a modified form of blade.

i Figure 6 is a sectional view of the lubricating pump. I

I Figure 7 is a detail sectional view of a part of the outlet for said pump.

Figure 8 is a view of the valve member.

In these drawings, A indicates a .circular casingwhich is formed of the two side plates :1 and the rim 2, each side plate having an annular projection 3'on its inner face adjacent the periphery of the plate, the side of the projection being beveled and its outer end being flat to-form a seat for the rim 2 which is bolted to the side plates. The rim with means for is formed with an outlet 4 and apair of in let ports 5, these inlet ports passing through a flattened part of the casing to which is attached a valve housing 6 having its lower part6 bolted toits upper part. This housing is formed with the passages 7 which form continuations of the ports 5 and these pas} sages lead to the inlet 8 at the outer or lower;

end of the housing. A pair of slide valves 9 controls the passages 7, these valves being connected together by a rod 10 'sothat they will'move in unison and the ports 11 in these valvesare s0 arranged that when one port is registering with one of the passages 7, the

other port is moved out of register with the opposite passage so as to closethe same. Aflever 12 is pivoted in a part of the housing. and is connected with the rod 10 and a yoke member 13 is slidablyarranged on the housing and carries apin 14 at its central part which passes through a slot inthe lever so that by moving the yoke member v through'means of its handle*15, the lever will" be rocked in one direction or the other to shift the valves to open either passage 7 and close the other passage.

A rotor 16 is eccentrically arranged in the casing, with a portion thereof contacting with the bottom of the casing so that the rotor and casing'form a crescent-shaped cham-' her, the ends of which are in communication with the ports 5.- The trunnions 17 of'the rotor'are journaled in the bearing bosses 18 formed on the side plates l, these bosses being eccentrically arranged, as shown. A plurality of blades 19 are movably arranged inthe radial slots 20 formed i'n'the rotor and a ring'21 is eccentricallyarranged on the innerwall of each end plate, these rings engaging the ends of the inner edges of the blades and acting to keep the outer edges of the blades against the rim of the casing, as shown in Figures 1 and 2. The outer ends of the blades have their ends beveled to engage the beveled faces of the projections 3- and each blade is formed with a tip 22 preferably of bronze which is suitably connected with the blade. Figure 4 shows one way of attaching the tip to a blade, but Figure 5 shows the preferredform. This figure shows a strip 23, preferably of bronze, fastened to the end of the blade by the screws 24.

From the foregoing it will be seen that when steam or other expansible fluid is introduced into the casing through an inlet 5, it will enter the pockets formed by the blades, the rotor and the casing and thus exert pressure against the blades to cause the rotor to rotate and the direction of this rotary movement will be away fromthe inlet port which is open. For instance, in Figure 1, the rotor will revolve in an anti-clockwise direction as the right hand inlet passage is open, but if this passage is closed and the left hand passage opened by the valve, the rotor would revolve in the opposite direction. As the blades move toward the bottom of the casing, they will be forced inwardly by the rim of the casing, the eccentrically arranged rings 21 permitting this movement and then as the blades move upwardly wit-h the rotor, they are forced outwardly andthus kept in contact with the rim of the casing by said rings 21, as cl arly shown in Figure 1.

I- also provide pumps for lubricating the; bearings, each pump comprising a casing 25 connected with each boss 18 and having a cylinder 26 therein in which is arranged a piston 27 which has its upper end pivoted to an eccentric strap 28 engaging an eccentric groove in the trunnion 17 so that as the trunnion rotates, the eccentric strap will reciprocate the piston 27 to cause it to draw oil from the casing into the cylinder throughthe holes 29 on its upward stroke and to force said oil from the cylinder on its clownward stroke through the passage 30 into'the bearing. A check valve 31 is arranged in said passage 30.

This motor can be arranged at any angle and will start with a full load and it can be caused to operate in either direction by moving the valves through the yoke 13.

It is thought from the foregoing description that the advantages and novel features of my invention will be readily apparent.

It is to be understood that I may make changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claim.

Vhat I claim is An engine of the class described, comprising a circular casing, a rotor eccentrically arranged therein and, supported for rotation, radially arranged blades slidably carried by the rotor, the periphery of the rotor and the circumferential wall of the casing defining a crescent shaped chamber, the casing having an outlet port located between the ends of said chamber, a" valve casing mounted upon the under side of the casing and having inlet passages communicating with the ends of said chamber, whereby a motive fluid may enter the chamber at either end thereof to vary the direction of rotation of the rotor, the valve casing comprising separable connected sections and formed in the meeting faces of the two sections with matching horizontal recesses providingvalve chambers, flat valve plates slidably mounted in said chambers and each provided near its outer end with an opening for registration with the respective one of the intake passages of the valve casing, a rod extending between and connecting the relatively adjacent ends of said plates, rack arms pivotally mountedat their lower ends within the valve casingand having longitudinal slots therein, belowtheir' upper ends, pins extending; from oppos'itesides of thesaid rodand engaging in the slots,- whereby, when the;arm is rocked about its pivot, shifting. adjustment of the valves will be effected toopen 011001 the inlet passages and close the other inlet passage, a frame disposed exterior-1y of the valve casingnandincluding side'members and connecting end m'E]11b6I'S, l1'1GZLIlS connecting the upper ends ofthe said; arms pivotally with the side members of said frame, and a handle member upon one end of the frame. 7

In testimony whereof I aflix my signature;

CLAIR W. PHILLIPS:

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