US1675693A - Rotary motor - Google Patents

Description

July 3, 192s. y

1,675,693 l. cAvAzos ROTARY MOTOR Filed Aug. 24, 1925 s sheets-sneet 2 my W adwzvazmsw xNvEN-ron W BY ATTORNEY July3,192s. 1,675,693

l. CAVAZOS VR'IARY MOTOR Filed Aug. 24. 192,5 3 Sheets--Sheet 3 li I r N e r l Y.

1 f m Q R a Q E b 5 v l.

INVENTOR Patented July 3, 1928.

UNITED STATES ISIDORE CAVAZOS, OF KINGSVILLE, TEXAS.

ROTARY MOTOR.

Application led August 24, 1925.

This invention relates to engines and has for its object the provision of a rotary engine capable of being operated by combustion, pressure and steam and designed to develop maximum power and efficiency.

The nature and advantages of the invention will be better' understood when the following detailed description is read in conncction with the accompanying drawings, the invention residing in the construction, combination and arrangement of parts as claimed. j

In the drawings: i l

Figure l is an end elevation of the engine constructed in accordance with the present invention.

Figure 2 is a sectional view therethrough.

Figure 3 is a side elevation.

Figure 4 is an enlarged sectional View through the fuel inlet and the valve mechanism for controlling the admittance of fuel to the engine. j

Figure 5 is a sectionalview on line 5-5 of Figure 2.

Figure 6 is a longitudinal sectional view through an air inlet valve.

Referring to the drawing in detail, 10 indicates an engine casing of cylindrical contour in cross section, and supported upon a suitable base 11. If desired, this casing may be made in two parts bolted or otherwise s ecured together as at 12. Arranged within the casing 10 is a cam shaped member 13, and if desired this member may form an integral part of the casing without departing from the spirit of the invention. Mounted to rotate within the casing is a rotor 14. fixed upon a suitable shaft 15, and the rotor is provided with a plurality of pockets 16 in each of which is arranged a sliding piston 17. The pistons are normally influenced by springs 18 which tend to project the pistons outwardly beyond the periphery of the rotor, and into engagement with the wall of the casing 10 or the cam-shaped member 13. The rotor is, of course, eccentrically mounted and is adapted to contact the cam-shaped member 13 at one point as shown in Figure 2. It will also be noted that each piston 17 has its outer end rounded or curved to con form to the cam surface of the member 13, as this member is utilized to move the pistons within their pockets when they are brought into engagement therewith.

Arranged exteriorly of one end of the en gine is a fuel pump 19 and an air pump 20,

Serial No. 52,919.

these pumps being arranged at diametrically opposite points and operate to supply air and fuel to a pipe 21 which i3 threaded into the engine casing 10, communicating with a bore 22 formed in the casing and opening into a bore 23 formed in the cam-shaped member 13. rlfhe bore is formed to provide a valve seat 2t which is normally engaged by a valve 25, the stem of which is indicated at 26 and arranged to slide in a passage 27. A valve operating rod 23 is ter minally connected with the stem of the valve,- and arranged longitudinally within the pipe 2l, being pivoted therein at a point between its ends at 29. The outer end of this operating element 23 is connected with a reciprocating rod 30 adapted to be actuated to control the movements of the valve incident to the rotation of the rotor 14. In other words, the lower end of this rod is connected with one end of an angularly shaped lever 31 pivoted at a point between its ends as at 32 upon a suitable bracket 33 arranged at one end of the engine, while the other end of the lever 31 carries a roller 3e which is adapted to cooperate with a cam 35 carried by the adjacent end of the rotor shaft 15. Consequently, as the shaft 15 rotates the lever 31 is intermittently locked upon its pivot in a direction to lower the operating' element 38, the latt-er in turn closing the valve 25 against its seat 24. Now, when the roller 34 of the said lever 31 leaves the high point of the cam 35, the weight of the valve 25 is suiiicient to allow the valve to gravitate to an open position, and thus admita charge of fuel into the engine casing through the port 23. Leading from the fuel pump 19 is a pipe 36 which is connected to an elbow 37 attached to one end of the pipe 21, as shown in Figure fl, while leading from the air 'pump 20 is a supply pipe 38 which is terminally connected with a nipple 39 projecting from the end of the elbow 37, as illustrated. Vhile any suitable means may be employed for operating the respective pumps; I preferably make use of a gear 40 which is carried by the rotary shaft 15, and which gear meshes with pinions L L1 and 42, respectively. Each of these pinions is connected with the piston rod 43 of the adjacent pump, so that the said pumps are simultaneously operated incident to the rotation of the shaft 15, thus continuously supplying the pipe 21 with a charge of fuel. Of course, the fuel is iny ing V45.

' valve `in its entirety being utilized to prevent the formation of a vacuum Within the enginecasing, as Vwill be readily appreciated. lt'will also be noted upon vinspection of Figure 2 that I rnaliieuse oi'Qa-curved guide t7 Vagainst vwhich :the pistons 17 are adapted to be singly Vprojected as they leave the cani surface ot" the .member 1,7, thus guiding` the piston intoeontactvvith the linner Wall ofthe v casing inV a gradual manner, thus overcoining severe impacts `between ythe piston and .the casing l0. .Garriedby-tlie cani-shaped "unember l'isa resilient strip of any suitable -inaterial `indicated atv i9, theV lower end ot which is voffset kas at() 'to engage the adj acent 'endoi` the .guide 47, thus sealing the .cylinder at this point to prevent the escape Vvor ba'cli pressure of thetuel When it is initially admitted .into fthe cylinderY 10. The

`etructureinits: entirety provides an engine Whichcan be operated to :produce a high de- 'griee 'of eiiic'iency, and manifestly develop niaxiniui'n power with the consumption ot a inininnnn ainountoif iuel.

`lVhile it is believed that troni the loregoing description the natrre and :ulvantages oit the invention `will be readily apparent, l desire to have it understood that l do not 'li'niit myself to what is herein shown and described, and that such changes nniy be resorted to when desired as iall within the scope ot' what is claini-ed.

lllaving,l thurs described the invention, what claimed as new, is:-

The combination with an engine casing having a fuel inlet bore lornied to provide a `valve seat,of ai Yl'uel supply pipe threaded into the casing and connnunicating with said bore, a sliding valve norinally engaging said seat and including` a stein, .said casing` beingrecessed to yreceive said stein, valve operating; rod arranged within the supply pipe, and pivoted between ite` vende, and connect-ed with said stein, a sliding rod operating` through an opening` in thcsupply pipe and connected with the adjacent end ot the valve operating rod, a bracket, a rocking lever pivoted on said bracket and connected with said sliding' rod, \a rotary shaft, and a cani carried by the shaft for intermittently V.rocking said rlever to open the valve, said "valve gravitatingl to its closed `position after each operation.

lntestilnony Whereoi' I aiiix my signature.

Rnv. ISIDORE CAVAZOS.

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