US2130691A - Motor - Google Patents

Description

Sept. 20, 1938. T, O LILES 2,130,691

MOTOR Filed June 30, 1937 5 Sheets-Sheet l 5 I'NVENTOR.

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Sept. 20, 1938. T Q was 2,130,691

MOTOR Filed June 50, 1957 5 Sheets-Sheet 2 IN VENTOR.

7Zomos 0. 4/728 ATTORNEY.

Sept. 20, 1938. T. o. LILEVS 2,130,691

MOTOR I Filed June so, 1957 s Sheets-Sheet 3 I NVENTOR.

ATTORNEY.

Patented Sept. 20, 1938 MOTOR L Thomas 0. Liles, Detroit, Mich. v

Application June so, 1937, Serial No. 151,125

- 4 Claims.

My invention relates to engines and an object of my improvementsis an improved apparatus for communicating a rotary motion to a shaft.

In the accompanying drawings, I have shown an engine in which it is assumed that steam is to be used, though compressed air would be equally appropriate.

Fig. 1 is an elevation of an engine embodying my invention;

Fig. 2 is a sectional elevation;

Fig. 3 is a detail section, on the line 3--3, Fig. 4;

Fig. 4 is a detail section of the valve mechanism to an enlarged scale, the parts being in position for the admission of steam to the cylinder;

Fig. 5 is a view similar to Fig. 4, the parts being in a position for exhausting the steam from a cylinder;

Fig. dis a section on the line 6-6, Fig. 2, toan enlarged scale, the central casting being broken away;

Fig. 7 is a detail elevation looking from the line' 1'|, Fig. 2; and

Fig. 8 is a section on the line 88, Fig. '7.

I is an enclosing casing which may be mounted upon a pedestal la. 2 is an annular casting within the casing I at the center thereof and in a plan-e at right angles to the axis of said casing, its periphery engaging the inner surface of said casing. 3 indicates cylinders, four of which are shown though any number may be used. Said cylinders are placed around the annulus 2, at equal angular distances apart and extend upon both sides of said casting, with their axis at right angles to the same. 2a is an annular chamber extending throughout the casting 2. The cylinders 3 pass through said annular chamber as shown in Fig. 3.

4 is a shaft extending axially through the casing I and bearing in said casing. 5 is a cam on the shaft 4, centrally of the casting 2. 6 indicates tubes passing radially through the annular walls of the chamber 2a and through the cylinders 3 therein. I indicates hollow plungers fitting and adapted to reciprocate in the tubes 6, their outer ends being closed and their inner ends open to the interior of the tubes 6. 8 indicates springs acting to force the plungers I inward. 9 indicates friction wheels pivoted in the ends of the plungers I and engaging against the periphery of the cam I. I0 indicates ports through the walls of the tubes 6 opening to the annular chamber 2a. II indicates similar ports opening to the interior of the casing I, and I2 are similar ports opening to the interior of the cylinders 3. I3 indicates ports through the walls of the plungers 1 adapted to register with the port I0 at the outer end of the stroke of the plungers I and with the ports I I at the inner ends of said stroke. I4, I4 are pistons in the cylinders 3 traveling in opposite directions from positions 5 at the center of said cylinder. I5, I5 are piston rods pivoted to and extending from, the pistons I4--l4.

I6 and I! (Figs. '7 and 8) are discs secured eccentrically to the shaft 4 at 180 degrees from each other. I60, and I'Ia are rings surrounding the discs I6 and I! respectively and connected to said discs through ball bearings as shown in Fig. 8.

I8 is a cylinder between the rings Mia and lid having arbors I8a and I8!) extending from its opposite faces 180 degrees apart engaging respectively in bearings in said rings.

I9 are bars with spherical ends located between the rings I6a and Ila and bearing at their ends in suitable cavities 20 and 2I in the adjacent faces of the rings I60. and I la.

'22 are bars integral with, and extending from the centers of, the bars I9 and at their other ends they are connected by universal or ball and socket joints to the ends of the piston rods I5.

The operation of the above described apparatus is as follows:

Steam under pressure is admitted to the annular chamber 2a through a pressure inlet 21). The parts being in the positions shown in Fig. 3, the pistons I4 are at the center of the cylinder 3. The plunger 1 then has been forced by the cam 5 into the position shown in Fig. 4, the ports II] and I3 registering. admit steam through the 35 plunger 1, tube 6 and port I2 to the cylinder 3 between the pistons I4, forcing said pistons outward, oscillating the connecting rods I9 and 22, pressing inward on one of the rings I6a and Na and outward on the other of said rings. Said rings act through the ball bearings upon the eccentrics I6 and H to rotate the shaft 4. The points of the adjacent faces move in circles in parallel planes.

When the outstroke of the pistons I4 are completed, the eccentric 5 has permitted the plunger 1, actuated by the springs 8, to return to the position shown in Fig. 5 where the ports I3 register with the ports II and the steam is exhausted into the casing I from whence it may be conducted by a pipe or pipes ID.

The cylinder I8 serves to synchronize the movements of the rings I 6a and Ho.

Aside from the specific embodiment of the invention herein shown and described, it will be understood that numerous details of the construction may be altered or omitted without departing from the spirit and scope of the invention as disclosed and. claimed, and that I do not desire to limit the invention to the exact construction herein set forth.

I claim:

1. In an engine, the combination of a shaft, two eccentrics on said shaft angularly spaced from each other, a ring surrounding each of said eccentrics and revoluble with reference thereto, a bar pivoted to said rings at its ends and means for oscillating said bar so that its ends shall move said rings in a path adapted to rotate said eccentrics.

2. In an engine, the combination of a shaft, two eccentrics on said shaft, a ring surrounding each of said eccentrics and revoluble with reference thereto, adjacent faces of said rings being provided with cavities, a bar extending between said rings, its ends engaging in said cavities, and means for oscillating said bar so that its ends shall move said rings in a path adapted to rotate said eccentrics.

3. In an engine, the combination of a shaft, two eccentrics on said shaft angularly spaced from each other, a ring surrounding each of said eccentrics, a bar pivoted to said rings at its ends, a lever extending from said bar at an intermediate point thereof and means for oscillating said lever so that the ends of the bar shall move said rings in a path adapted to rotate said eccentrics.

4. In an engine, the combination of a shaft, two eccentrics on said shaft angularly spaced from each other, a ring surrounding each of said eccentrics, a plurality of bars angularly spaced from each other extending between said rings, the opposite ends of each of said bars pivotally engaging said rings, a lever extending laterally outward from an intermediate point of said bar, a plurality of cylinders lying parallel to said shaft and pistons in said cylinder connected to said levers to actuate'the same.

THOMAS O. LILES.

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