US957799A

US957799A - Rotary engine.

Info

Publication number: US957799A
Application number: US50783309A
Authority: US
Inventors: Albert E Rasmussen
Original assignee: Individual
Current assignee: Individual
Priority date: 1909-07-15
Filing date: 1909-07-15
Publication date: 1910-05-10
Anticipated expiration: 1927-05-10

Description

A. E. RASMUSSEN.

ROTARY ENGINE.

. APPLICATION FILED JULY 15. 1999. 957,799. I Patented May10,1911

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APPLICATION FILED JULY 16, 1909.

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UNITED STATES ALBERT E. RASMUSSEN'. OF NORTH YAKIMA, WASHINGTON.

no rrmY ENGINE.

Specification of Letters Patent.

Patented May 10, .1910.

Application filed July 15, 1909. Serial No. 507.833.

To all 1137mm "it may concern:

Be it known that I, Aunsnr F.. llasuns- E sex, a citizen of the United States. residing at North Yakima. in the county of Yakima and State of \Vashington. have invented new and. useful Improvements in Rotary Engines. of which the following is a specification.

This invention relates to rotary engines and one of the principal objects of the is to provide an engine of simple cons ruction. of compact form and one which can be readily reversed to rotate in either direction.

-.-\nother object of the invention is to provide a rotary engine which will work smoothly under varying conditions and which may be. used as a steam engine. a gas engine or a compressed air motor, the operative elements being of simple construction and composed of few parts.

Still another object of the invention is to provide a rotary engine in which the pistons which rotate in the cylinder carry with them the sectors against which the motive element impinges to rotate the pistons.

These and other objects may be attained by the construction illustrated in the accompanying drawing, in which Figure 1 is a central vertical section of a rotary engine made in accordance with my invention. Fig. 2 is a similar view with the operative parts in different. position. Fig. 3 is a similar view illustrating a slightly modified form. Fig. 4; is also a section of similar character showing a still further modified form of my invention. Fig. is a vertical section taken longitudinally of the engine shown in Figs. 1 and 2. Fig. 6 is a similar View of the engine shown in Fig. 3.

Referring to Figs. 1, 2 and 5 of the drawing the numeral 1 designates the cylinder provided with a suitable base 2 and provided with removable heads 3 secured in place by bolts 4. One of the heads 5 is provided with an outwardly extending centrally disposed boss 5 having a bore extending into the cylinder. J ournaled in the bore of the boss is a sleeve 6 connected by integral arms 7 to a 'Q1t piston 8 having at its outer edge a suitle packing 9 which may be in the form of a yielding strip or a spring projected packing to insure contact of the outer edge of the piston with the interior wall of the cylinder. Another piston 8" is connected by means of arms 7 to a solid shaft 6 extending through the sleeve 6. In this manner the two pistons are permitted to move independently. Projet-ting from the opposite head 3 of the cylinder 1s a boss 10 which is di posed eccentrically to the shaft (3. Mounted in the boss 10 is a shaft 11 carrying at its outer end a belt policy 12. ()u the inner end of the shaft 11 a wheel is fixed said wheel eoin n'ising a hub 13 having a series of radially projecting spokes -1-t. said spokes carrying eolnentrically arranged sectors 15. the outer surfaces of which are designed to bear against. the. inner wall of the cylinder during their rotation. These sectors are carried around with the pistons by means of links 16 pivotally connected to the sectors and to the pistons. Gates 1? are connected to arms 18 mounted upon the shaft ll and the arms 18 are connected by springs 19 to the spokes 14 of the wheel. An inlet port 20 connnunicates with the cylinder at one side of the center thereof and upon the opposite side is an exhaust port 21. It will be obvious that when the engine is reversed the port 21 will serve as an inlet portand the port 20 as an exhaust port. A suitable packing 22 is secured to the inner wall of the cylinder at. a p nt. between the two ports. v

Referring now to Figs. 3 and 6 it will be seen that all the parts are of substantially the. same construction as those already described excepting that the shaft 11 is journalcd eccentrically in bosses 23 formed upon the inner walls of the heads 3. The wheel carrying the sectors 15 is provided with series of spokes 14 and links 16 connect the sectors with the

pistons

8 and 8. These pis ons are each connected to an eccentric strap 24: mounted upon the bosses 23 as shown more particularly in Fig. 6. The shaft- 11 carries a belt pulley 12.

Referring to Fig. 4 it will be seen that the gates 17 are omitted and that the sectors 15 are each independently mounted upon the shaft 11". These sectors 15 are also connected to the pistons 8 by means of links 16 and a. In lieu of the links 16 or a I may use a telescopic link comprising a tubular member 0 pivoted to the sector 15", while the solid telescopic member (Z is pivoted to the piston 8.

The operation of my invention may be briefly described as follows: The motive cle ment being admitted through the inlet port 21 forces the pistons and the sectors around the cylinder. Referring to Fig. 2 it will be seen that the motive element bears directly upon the piston 8 and impinges upon the surface of the sectors 15 while the gates 8 t prevent the steam or motive element from i passing back of the sector 15 while the? springs 15) :aerve to force the gates against; the pistons during every partof their op- 5 eration. Itv will be obvious that. the engine E can be readily reversed by permitting the motive elements to enter through the port 21, the port- 30 then serving as an exhaust port.

1. A rotary engine comprising a casing, independently mounted pistons in the casing, sectors mounted eccentric-ally to the pistons, links connecting the sectors and the pistons, and spring-acuiated gates for closing the openings between the sectors and; pistons.

2. A rotary engine comprising a cylinder, pistons independently mounted 111 the cylinder, a wheel mounted on a shaft disposed ect centric-ally to the center of rotation of said pistons, sectors carried by the wheels, links connecting said sectors and said pistons, said links being pivotaily mounted at their ends, and gates connected by springs to said wheel for closing the space between the sectors and the pistons. l

3. A rotary engine comprising a cylinder, pistons mounted concentrically in the cylinder, a wheel mounted eccentrically in the cylinder sectors carried by said wheel, said wheel and pistons being connected by pivoted links, inlet and exhaust ports in the casing, and gates actuated by springs for closing the openings between the sectors and the pistons.

l. A rotary engine comprising a casing, pistons mounted in the casing, one of said pistons being connected to a hollow shaft,

the other piston being connected to a solid shaft mounted in the hollow shaft, a wheel journaled on a shaft mounted eccentrically in the casing, sectors carried by the wheel, links connecting the sectors with the piston, said links being pivoted, and gates carried by arms mounted on the wheelshaft and actuated by springs to close the openings be tween the pistons and the sectors.

In testimony whereof I attix my signature in presence of two witnesses.

ALBERT E. RASMUSSEN.

Witnesses G120. F. MCAULAY, FRED A. CLEVELAND.