US1047357A - Rotary engine. - Google Patents

Description

. S. S; WILLIAMS.

- ROTARY ENGINE.

APPLIOIATIOH FILED OUT. 19, 1912.

1,047,357. Patented Dec. 17, 1912.

v UNIT- SILAS WILLIAMS, 0F MINNEAPGLIEL MINNESOTA.

ROTARY ENGINE.

Specification of Letters Patent.

Patented Dec. 1%, "i912.

Application filed October 19, 1912. Serial No. 726,847.

To all whom it may concern:

Be it known that 1, Sims S. lVILLIAMS, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Rotary Engines, of which the following isa specification, reference being had to the accompartying drawings.

This invention relates to' rotary engines and more particularly to pistons therefor, the-invention having for its primary object to provide an improved mounting for packing strips carried by the piston, said packing strips engaging the wall of the engine cylinder.

' A further object of the invention is to provide a rotary pump or euginehaving improved structuralfeatures whereby the operating efiiciency, durability and reliability of the engine is materially enhanced.

With the above and other objects in view as will become apparent as the description proceeds, the invention consists in certain constructions, combinations and arrangements of the parts that I shall hereinafter fully describe and claim.

For a full understanding of the inven-[ tion, reference is to be had to the following description and accompanying drawing, in whichv Figure 1 is aside elevation, one of the face plates of the casing removed illustrating a rotary pump or engine embodyingthe present invention; Fig. 2 is a section taken on the line 2-2 of Fig. 1; Fig. 3 is a section taken on the line 3-3 of Fig. 2; ant Fig. 4 is'a detail perspective view of one or the packing strips.

Referring in detail to the drawing 5 designates the body of the engine casing which is provided with two internal communicating chambers 6 each of which is of substantially circular form. The ends of these chambers are closed by means of the face lates 8 which are bolted or otherwise secured to the body of the casing as indicated at 9. The engine casing is centrally provided with inlet and outlet ports 10 and 11 respectively which open into the casing at the communicating point of the chambers G and at diametrically opposite sides thereof. Pipes are connected to these ports and to a source of fluid supply, said pipes being provided with suitable valves whereby the fluid may be admitted to the engine casing from either side thereof and exhausted from the opposite side.

Que of the face plates 8 of the casing is provided with step bearings 12 which receive the bearing studs 14 on one end of the pistons 13. The rods 15 of the pistons extend through openings in the other face plate of the engine casing. Each of-the pistons is provided witha series of parallel peripheral grooves or channels 16 which are of substantially semi-circular form. In these grooves or channels, the cylinders 1'7 are secured in any preferred manner. Each of these cylinders is provided with a longi' tudinal groove or kerf 18, the base wall of which is provided with recesses or sockets 19 to receive the coil springs 20. These springs bear against the packing strips 21 preferably of brass and force the same out- Wardly so that their outer edges are disposed,

beyond the peripheries of the cylinders 17. The inner edges of the packing strips 21 are cut away as at 23 and spaced from therbase walls of the grooves 18 in the cylinders. Each of the packing strips is provided in one side with a plurality of channelsQQ through which the actuating fluid may enter beneath said packing strips and assist the springs 20 in forcing said packing strips outwardly into .engag' ment with the casing walls. Thus a very tight frictional engagement of the outer edges of the packing strips with the walls of the circular chambers 6 of the engine easing will be maintained.

The engine operates in a similar mannor to rotary pumps or engines of this type which are well known in the art, the cylinden; and channels of the rotary pistons receiving the impact of the fluid as it is admitted to the engine casing, whereby said pistons are driven. The cylinders 17 are arranged alternately with relation to the open grooves or channels 16 of the pistons and as the pistons rotate in opposite directions, the cylinders of the channels of the other piston.

From the foregoing it is believed that the construction and many advantages whichtac one piston are received in tie d by the rotary pistons may be readily renewed when they become too far Worn for further effective service, the expense incident packing strips are arranged may be employed if desired, It is also manifest that many other changes in the form, proportion and arrangement of the several elements spirit of the invention.

Having thus described the invention, what is claimed is: v

1. The combination with an engine casing having substantially circular connnuni eating chambers, of a rotary piston arranged in each of said chambers, each of said pistons having a plurality of parallel longitudinal peripheral channels, cylinders arranged in alternate channels of the pistons, and radially movable packing strips mounted in each of the cylinders, the cylinders on one piston being adapted forengagen ent in the channels of the other piston.

2. The combination with a casing having substantially circular communicating chambers and inlet and outlet ports communicating with the chambers, of a rotary piston mounted in each of said chambers, each of said pistons being provided with a plurality of parallel longitudinal channels, cylinders secured in alternate channels of the pistons, each of said cylinders being provided with a longitudinal groove, a packing strip arranged in said groove and provided in one face with channels through which the actu ating fluid may enter beneath the packing strips to force the same outwardly into engagement with the wall of the casing, the

cylinders on one piston being adapted for groove, a metal packing strip arranged in said groove, COll springs disposed between the packing strip and the base of the groove to force said packing strip outwardly beyond the periphery of the cylinder, said packing strip being provided in one side with a plurality of channels through which the actuating fluid may enter beneath said packing strip and assist the springs in forcing said strips outwardly, the cylinders of one piston being adapted to enter the channels of the other piston.

In testimony whereof I hereunto aflix my signature in the presence of two witnesses. v

SILAS S. WILLIAMS.

Witnesses: v

ALBERT CAnLsoN, F. L, PALMER.

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