US1379775A - Internal-combustion engine - Google Patents

Description

5. Wi MUHPIIY, INTERNAL corNBussoN ENGINE.

APPLICATION FILED FEB. I0, 1919.

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l APPLICATION FILED FEB. if), E919. 1 i {Symp-f 7D f\ 1 16573 L@ QS j m@ miv/m May EL ,Ld/L

3 SHEETS-SHEET 2-.

PETER lW. MURPHY, 0F CHICAGO, ILLINOIS, ASSIGNOR TO MU COMPANY, 0F CHICAGO, ILLINOIS,

ENGINEERING A CORPORATION 0F MICHIGN.

INTERNAL-COMBUSTION ENGINE.

.Speeication of Lettere Patent.

Application filed February 10, v191.9. Serial'No. 276,194.

To all whom z'tmay concern.'

Be it known that I,- PETER MURPHY, .a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Internal-Combus-- Engines, of which the following is av tion full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to internal combustion'engines and has to do morte particularly with devices wherein the cylinders and pistons are disposed around almain shaft and parallel thereto, and operating upon a cam carried by the main shaft for the purpose of rotating it. One. of the objects of my invention is to provide an improved and simplified device of this character which is also cheap to manufacture and adapted for driving automobiles in addition to other general uses. Another feature of my invention is the use of a clutch which is located within the engine, being preferably placed within the driving cam carried upon the main shaft. A further object of my in.

vention is to provide an improved and simplified wear take-up device in connection with the slides for supporting the cam driving rollers. f

For a better understanding of 'my invention reference is to be had to the accompanying drawings in which Figure 1 is a longitudinal section through the engine along the line 1, 1 of Fig. 2;

F ig. 2l is an end view of F ig. 1;

Fig. 3 is a sectional view through the ball and socket connection between the piston and roller carrying slide Fig. 4C is a section through the middle part of the engine showing more particularly the Y arrangement of the wear take-up device; and

Fig. 5 is a view cylinder-head showing the arrangement of the valve operating mechanism and the clutch operating lever.

Referring now more in detail to my invention I have shown one of a four cylinder type having two cylinders at each end, said cylinders being in opposed pairs and con.- nected to a slide carrying rollers operating upo a driving cam carried by the main sha f the slide along line 5, 5 inside they these lthrough the clutch operating sleeve 10 and being adjusted to the disk clutch 12 and supported in a bearing 13 inside the drum 8. The clutch sleeve 10 is operated by means of a yoke 14 connected with the usual clutch pedal 1?. Thus as the pedal 14a is operated the engine is thrown into or out of operative connection with the drive shaft 11 by the spring pressed clutch 12, which clutch is acted upon by the spring 15.

For the purpose of rotating the cam 7 I provide cylinders 15, 16, 17, 18 disposed parallel to the main shaft and arranged in opposed pairs, the cylinders 15, 16 being opposite each other and connected to the roller carrying -slide 19 on which is mounted a pair of rollers 20, 21 acting upon opposite faces of the cam 7. In order to take up any wear which may occur by the operation of the lslide 19, I provide wear take-up mechanism in the form of adjustable gibs 22, 23, 24 which are acted upon by adjusting screws 25 held in place by suitable lock nuts.

For the purpose of connecting the slides 19` with the pistons I provide a piston rod 26 having a ball and socket connection to 19 and piston 27, each joint comprising a sphericallyliollow hub 27a and nut 28 which isthreaded into the hub so as to liold the rod in place. It will be noted that the nut 28 has a holesmaller than the diameter of the ball and in order to place these nuts upon the shaft 26 I preferably make the shaft in two pieces, one of the heads being screwed on to the end of the shaft as shown more clearly in Fig. 3.

It will thus be apparent that even though the cylinders and slide 19 do not 'line up, either in original manufacture or due to wear, the ball and socket connection between parts permits operation thereof with- Patented May 31,1921.

In the preferred embodiment of my invendrum 8 carries an extension out binding as would be the case where a rigid connection is used.

. Now as to the outer casings vof the engine, these comprisea middle casing 29 carrying suitable . intermediate heads 30 and 31 an cylinder casings 32, 33 having suitable cylinder heads 34, 35. Each cylinder has an intake valve and exhaust valve, the intake valve 36 for cylinder 15 being shown and exhaust valve 37 for cylinder 17 being shown. lThese valves are suitably supported within the cylinder casings and are operated by means of bell-crank levers 38, 39, respectively coperating with the intake cam 40 and exhaust cam 41. An intake manifold 42 (Fig. 2) is connected with the' two intake valve chambers on opposite ends of the engine on one side thereof, andA the intake 'manifold 43 is connected with the `o posite intake valve chambers on the other s1de of the engine as shown in Fig. 2. Exhaust outlets as 44, 4 5 are connected with vthe various exhaust valve chambers.

What I claim as new and desire to secure by Letters Patent is:

1. An internal combustion engine comf inders and rotated by the pistons, a driveshaft, clutch mechanism connecting the main and drive shafts and means to take up wear between the pistons andthe cam.

2. An internal combustion engine comprising a main shaft, cylinders and pistons disposed parallel to the shaft, a cam carried by the main shaft and rotated by the pistons, a drive shaft, and clutch mechanism carried within the main shaft cam connecting the main and drive shafts.

3. An internal., combustion engine comprising a main shaft, opposed cylinders and pistons disposed parallel to the shaft, slides connected to the pistons', means to adjust said slides, a cam carried by the main shaft between the opposed cylinders, rollers carf .ried by the slides and engaging the opposite sides of the cam, a drive shaft extending. be-

tween the cylinders and pistons at one end,

and clutch mechanism l connecting the main prising a main shaft, opposed cylinders and pistons disposed parallel to the shaft, a cam carried by the main shaft between. the

opposed cylinders and rotated by the pistons, a drive shaft extending between the cylinders and pistons at one end, and clutch mechanism carried within the main shaft cam connecting the main and drive shafts.

5. An internal combustion engine comprising a main shaft, a' cylinder and piston disposed parallel. to the shaft, a projecting^ rib'cam carried by the shaft, a slide movable parallel to the main shaft, and connected 'with the piston by a ball and socket joint,

a pair of rollers on. the slide engaging the opposite sides of the cam for rotating the latter, said cam and said rollers having co-v operating inclined faces, a .casing around the cam and main shaft, and a support vfor the slide including adjustable ibs suitably .carried bysaid casing for argljusting the rollers relatively to the cam and slidably receiving said slide.

6. An internal combustion engine comprising a cylinder, and piston, a slide, a connecting rod, and-suitable ball and socket joints connecting both the slide and piston with the rod, the ballof one joint being detachable from the connecting rod to permit assembling of the parts.

7. An internal combustion engine comprising a main shaft having a cam, two pistons disposed upon diametrically opposite sides of the shaft and parallel thereto, double cylinders for the pistons surrounding the shaft, intake and exhaust .valves for each cylinder, adjustable roller connections between the pistons and 'the cam, and cams on the shaft for actuating both of the valves, the cam faces thereof projecting radially of said shaft. v

In witness whereof, I hereunto subscribe my namethis 31st day of January, A. D., 1919.

PETER w. MURPHY.

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