US1249881A

US1249881A - Internal-combustion engine.

Info

Publication number: US1249881A
Application number: US2448315A
Authority: US
Inventors: Joseph A Anglada
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-04-28
Filing date: 1915-04-28
Publication date: 1917-12-11
Anticipated expiration: 1934-12-11

Description

.l. A. ANGLADA.

INTERNAL COMBUSTION ENGINE.

- APPLICATION FILED APR.28. 1915.

1,249,881. r Patented Dec. 11,1917.

3 SHEETS--SHEET J. A. ANGLADA.

INTERNAL COMBUSTION ENGINE.

APPLICATION FILED APILZB. 1915.

1,249,881. Patented Dec. 11, 1917.

3 SHEETS-SHEET 3.-

INVENTOR fim r iiu A TTORNEY JUSIIEPH A. MNGLADA, 0F BROOKLYN, NEW YORK.

INTERNAL-CDMBUSTION ENGINE.

specification of Letters Patent.

Patented Dec. 1i, ttti Application filed ltpril 2t, 1915. terial No. MAW.

To all whom it may concern:

Be it known that T, JosnrH A. ANGLADA, a citizen of the United States of America, and residin in the borough of Brooklyn, county of. 'ngs, and State of New York, have invented a certain new and useful Tmprovement in Internal-Combustion Engines, of which the following is a specification.

My invention relates to internal combustion engines, and more particularly to that type of engine employing pistons traveling in one direction for drawing a charge of combustible gas into the device and compressing the same, then expanding the charge by combustion, and for scavenglng or expelling the roducts of combustion.

T e objects of my invention are,

1. To produce a device in which the pistons will be held in positive engagement with the profile of the casing or stator.

2. To prevent leakage between the pistons I and the profile of the stator.

til

3. To prevent backward movement of the rotor.

4. To rovide simple and efficient means fOWlgfiitHlg the charge of compressed fuel, and for controlling the time of Ignition.

5. To simplify and cheapen the construction of the device, and to produce an engine which will not be likely to get out of order, and which will be easy of repair.

These and further objects will more fully appear in the following specification and accompanying drawings considered together or separately.

In the drawings,

Figure 1 is a transverse sectional view of my improved apparatus taken on the line 1-1 of Fig. 3.

Fig. 2 is a detail perspective view of a piston slide and its sprin and lifter.

Fig. 3 is a longitudina view taken on the line 3-3 of Fig. 1.

Fig. 4 is an end elevation of the rotor.'

Fig. 5 is a half side elevation and half I longitudinal section of the device, the section being taken on the same line as is Fig. 3,

but the rotor being shown as having been moved of a revolution from that shown in Fig. 3; and

Fig. 6 is a diagram of the electrical connections of the timing and firing devices.

In the drawings, correspondm parts in all of the figures are designated by similar reference characters.

My improved engine com rises an open ended casing or stator 1 WhlCll is provided with legs or brackets 2 for attachment to a floor or wall. The configuration of the easing is roughly that of a square rounded at the corners. The casing is provided with

end flanges

3, 3 and strengthening ribs l. Car ried by the flange at one side is a plurality of diametrically disposed feet 5, and to each of the feet 5 is bolted an arm 6 of a spider 7. The spider is provided with an elongated collar 8 in which is mounted a stationary shaft 9 which projects throu h the casing.

Rigidly secured to the sha 't 9 is a cam 10, the peripheral face of which is so formed that the radial distance between it and the interior profile of the casing is approximately the same at all points. The cam 10 is secured to the collar 8 by means of bolts 10 so as to be held stationary relatively to the shaft and easing.

Mounted on the shaft 9 so as to rotate relatively thereto, is a rotor 11. T he rotor consists of a cylinder 12 of the same length as the casing 1. The cylinder is carried on a limb 13 on the shaft 9 through the inter mediary of a web 14, and ribs 15. The cylinder 12 is provided with eight radial slots 16 extending inward from its periphery, and each of the slots 16 carries a iston slide 17, which engages the profile of the casing 1. In each slot, beneath the piston slide carried I thereby, is a slide lifter 18 which is provided with a foot 19 for engagement with the cam 10. Between each slide lifter and its slide is disposed a spring 20. The inner side of each piston slide is concave, the outer side of each slide lifter is convex, and spring 20 is how shaped. The object of the spring is to provide for'variations of radial distances due to irregularities of workmanship and variations due to expansion, etc., and to cause the outer face of the piston slide to engage the inner profile of the casing for its entire length and prevent it tipping.

Each piston slide 17 may be constructed of a single unitary structure, but I prefer to construct it of a plurality of plates arranged in pairs, the plates of each'pair being scarfed at the center so that they overlap. The spring 20 in this case being composed of a plurality of leaves arranged side by side in such a manner that each leaf bears against a plurality of plates. This construction makes it possible to allow a larger piston slide surface to engage the profile of the stator when the slide is traversing a part of the profile having a small radius, than if the engaging surface of the slide be in one piece. The laminated structure of the slide also produces baffle grooves which will prevent leakage across the surface of the slide.

The plates comprising the piston slides, being each in two pieces, and being curved on the inner side, and the springs 20 being also curved, theeffect of the springs hearing on the curved surfaces will tend to mov the plates of each pair away from each other sidewise, and force the outer ends of the plates against the cheek plates about to be described.

The outer faces of the

flanges

3, 3, are provided with annular grooves 21 and 22, in which are located packing rings 23 and 24, and the ends of the casing 1 are closed by means of cheek plates 25, 26, one carried on each end of the rotor and revolving therewith. The cheek plates are secured to the rotor by means of bolts-27 which extend through the rotor and cheek plates, and is each provided with a nut. The end of each bolt is tapped, and a round headed screw 28 is screwed into each tapped hole on top of 1e iach nut for a purpose to be hereafter speci- The outer wall of each groove 21 is tapered as shown, and the outer wall of each ring 23 is tapered to fit the groove, and is turned larger in diameter than the groove. The ring is then split on one side, and compressed into the groove. The tendency of the ring to expand will, on account of the engagement of its tapered wall with the tapered wall of the groove, force the ring away from the groove and into close engagement with the cheek plate, and thereby prevent leakage of the gas between the rotor and stator. The inner wall of each groove 22 is tapered, and the inner side of the ring 24 has a similar taper. This ring is turned a diameter smaller than that of the groove, and is expanded in place. This results, due to the taper being on the inside, to force this ring outward against the cheek plate, and form an additional packing.

It will be seen that when the rotor is in position within the casing, the periphery respectively.

At points g and k perpendicular to the points a and 0, the body of the rotor does not come in contact with the profile of the casing, and near these points, and diametrically opposite each, are sparking

devices

29, 29.

Between the points a and g and Z) and h, the casing is bulged out to form crescent shaped chambers i and j, communicating with the inlet ports 0 and (1 respectively. Between the points 9 and b and h and a are somewhat similarly shaped spaces is and l, but of smaller capacity, and communicating with the exhaust ports f and 6 respectively.

One end of the shaft 9 is tapered, and carries an arm 30 secured in position by means of a nut. The free end of the arm carries a block of insulating material 31' to which is secured a contact finger 32. This finger is disposed in the path of the screw heads 28;and makes contactwith each of them as the rotor revolves. 33 desimiates a storage battery, and 34 a spark coil; the secondary terminals of which are connected to one side of the spark plu s 29 and to ground. The other side of eac i'spark plug is grounded in the frame. The primary terminals of the spark coil are connected to the battery 33 and to the finger 32, so that when the rotor is revolved, as each screw head comes into contact with the finger 32, the circuit will be completed and a spark produced at each spark plug 29.

The device may be modified by making the contour of the casing of the cam of hexagonal or octagonal shape with six or eight flat sides and the same number of rounded corners, and increasing the number of piston slides to correspond.

The device may be used as a pump by removing the spark plugs and applying power to the pulley, and when used as a gas pump the spaces is and Z may be made smaller by bringing the contour of the casing concentric with and closer to the periphery of the rotor, so as to provide for greater compres- S1011.

The explosions may be timed by moving Ill all

amper the arm 30 around the shaft. To retard the period of ignition the arm will be moved 1n the direction of rotation of the rotor, and

to ad vance the spark the arm will be moved in the opposite direction...

The operation of the device as illustrated is as follows:..

The rotor being turnedmanually or otherwise, the-piston slide first passing an inlet port will, by suction, draw in a charge of explosive mixture, and the following piston will trap the charge in the spaces a and j. The continued rotation of the rotor will move the charges in the clock-wise direction to the spaces is and Z and compress the charges. One of the contact screws 28 will now come in contact with the finger 32, completing the circuit, and causing a spark-at the spark plugs, which will explode the charges in the spaces is and Z and drive the rotor in the clock-wise direction. It will be observed that the piston following the compressed charge will present a very much smaller surface to the force of the explosion than will the slide ahead of the charge, so that there will be no tendency for the rotor to move backward or in the counter clockwise direction. After the explosion has taken place, the movement ofthe rotor will cause the slide following the exploded charge to scavenge the ignition chamber, and expel the products of combustion through the exhaust openings.

It will be observed that as the explosions take place simultaneously at diametrically opposite sides of the casing, and as the circuit is made eight times during each revolution of the rotor, there will be sixteen impulses at each complete revolution.

In accordance with the provision of the patent statutes, I have described the principle of my invention together with the apparatus which! I now consider to represent the best embodiment thereof, but I desire to have it understood that the apparatus shown is merely illustrative, and that the invention can be carried out in other Ways without departing from the spirit of my invention.

Having now described my invention what I claim as new and desire to secure by Letters Iatent of the lows:

1. In an internal combustion engine, a casing having a bore with parallel sides, the parallel sides being arranged in oppositely disposed pairs, one pair spaced at right angles to another pair, a rotor within United States, is as folthe casing, a stationary support for the rotor,-

said rotor engaging the bore of the casing at diametrically opposite points, there being spaces between the rotor and the easing, slides carried by the rotor for engaging the bore. of the casing, and a cam carried by the support for retaining the slides in engagement with the bore.

2. In an internal combustion engine, a

casing having a bore with parallel sides,

the parallel sides being arranged in oppositely disposed pairs, one pair spaced at right angles to another pair, a rotor within the casing, a stationary support for the rotor, said rotor engaging the bore of the casing, at diametrically opposite points, there be ing spaces between the rotor and the casing, laminated slides carried by the rotor forengaging the bore of the casing, and a cam on the'support for retaining the slides in engagement with the bore.

3. In an internal combustion engine, a casing having a bore with parallel sides, the parallel sides being arranged in oppositely pairs, one pair spaced at right angles to another pair, a rotor within the casing, astationary shaft supporting the rotor, said rotor engaging the bore of thecasing at diametrically opposite points, there being spaces between the rotor and the casing, laminated slides. carried by the rotor for engaging the bore of the casing, the laminated parts of'the slide being capable of independent contact with the bore of the casing, and a cam on the shaft retaining the slides in engagement with the bore. v

4:. In an internal combustion. engine, a

casin having a bore with parallel sides, the

' and a plurality of springs between the slides and feet, each spring engaging a plurality of lamina. I

5. A piston slide for internal combustion engines, comprising a plurality of separate members arranged in pairs, each pair being separated at the center, a curved surface on each member, and a spring bearing on the curved surface to force the members of each pair apart from the center.

6. In an internal combustion engine comprising a casing having an irregular bore, a plurality of fuel inlets in the casing, a plurality of exhaust ports in the casing, a plurality of igniting devices in the casing, a rotor within the casing, said rotor being out of engagement with the bore of the cas ing for substantially all of its peripheral surface, a space between the periphery of the rotor and the bore of the casing, said space extending from the fuel inlet to a sparking device, a space between the periphery of the rotor and the bore of the casing, said space tact, the said rotor contacts being equal in extending from the sparking device to an number to and situated between the rotor exhaust opening, the latter space being slides whereby the igniting devices will be smaller than the first mentioned space, a energized as many times as there are slides. 15 5 plurality of slides carried by the rotor and This specification signed and witnessed engaging the bore of ghei1 casing at all point; this 27 day of April, 1915. durin the rotation 0 t e rotor, a source 0 electri cal energy connected to the igniting JOSEPH ANGLADA' devices, a stationary contact in circuit with Witnesses: 10 the source, and contacts carried by the rotor JOHN L. Lo'rson,

and adapted to engage the stationary con- JACOB SCHECHTER.