US1223762A

US1223762A - Internal-combustion engine.

Info

Publication number: US1223762A
Authority: US
Inventors: Ettore Bugatti
Original assignee: Individual
Current assignee: Individual
Priority date: 1916-04-06
Filing date: 1916-04-06
Publication date: 1917-04-24
Anticipated expiration: 1934-04-24

Description

E. BUGATTI.

INTERNAL COMBUSTION ENGINE.

APPLICATION FILED APR. 6. 1916. 1,223,762. Patented A.p1.24,1917.

sTATEs PATENT oFFIC ETTORE BUGATTI, OF ARIS, FRANCE.

INTERNAL-COMBUSTION EN GI E.

,hacerca To all whom t may concefi: f

Be itv known that I,y E'r'ronn BGA'ITI, a

subjectof they King 'Italy, residing in' `Paris, France, have invented certain :new

spaced apart there is a loss of space.

The present invention consists in an improved constrlilction which permits the placing ofthe admissmn and exhaust valves d1- -rectly opposite one another, that is to say in one and the same plane which .is perpendicular to the axis of the lcam shaft and, moreover, the forming of groups comprising four valves disposed symmetrically with respect to two planes which are perpendicular the cylinder. p A v l Thev improved construction consists inarranging'above the head of the. engine cylinder superposedtappet membersor levers and each Provided with one or more openings to allow respectively the passage therethrough of a finger or equivalent member attached `to the. lower,tappet and of the valve spindle or spindles controlled by the upper tappets; this system of control permits theuse of separate cams for controlling the admission and exhaust valves.

The invention will be described with rei"- -erence ,to the accompanying drawing in to one another a'nd pass through the axis of Figure l is a` vertical section, broken along the .line y g/ of Fig. 2, through the head of an englne cylinder having the invention applied.

Fig. 2 is a plan of the same with a part plan of an adjacent cylinder.

From Fig. 2 is will be seen that an admission valve@ and an exhaust val-ve Z are disposed in eaclrof the planes z2-a1, g/-g/,-

Specification of Letters Patent.

-v`end on the valves a.

lever, also 1n the form of a plate has openitively the tappe dies of the valves b and have parts that ratented'apr. 24. 1911.:

application med April e, 191s. serial No. 89,292,

an upper tappet member or lever f' hav'v the yform of a plate which'is hinged .at g an provided withfa projection m. In tappet plate, f is an opening la.; through this opening Canmore freely a projection carried by the lower tappet j which is hinged at /t' and acts through its free The lower tappet ingstthrough which can pa freely `the'- p1 ends of the rods of'the valves b. VAlternat f cari-"bemrovd with dependent projections adapted to traverse the openings Z and act upon the ends of theA spindles of valves b. l

If the two projections m and z', whichgif desired may be furnished with rollers, be not situated in the same vertical l rate cams, that i's'to say, cams ferent planes7 can beemployed) ling the valves.

aced in` diffor controly The operation of-this system of control is as follows z--In turning, the shaft c acts'by. cam d on projection m carried by the tappet f and thereby causes the lowering of valves;

), so that the exhaust ports becomeopenf;

lVhen the cam e acts in its turn on projection c' on tappet j it causes the loweringl of this latter which by its free end bears on the end of the` spindlesV of valves a, the lowering of mission ports. v

The tappet members or levers mayv have any form; provided they have the opening or slots necessary for the reception of the projectionof the lower tappet and the spinsubject to the action of the cams.

Having now particularly described and ascertained the nature of my said invention and in what'manner the same is to be performed, I declare that what I claim is: y

1. An internal combustion engine havin twin exhaust and admission Valves locate directly opposite one another in a plane per-f pendicular to the cam shaft, and having tappcd levers controlling said valves respectively, the lever for one pair of valves located above the lever for the other valves, said levers having projections, and, a' cam shaft having cams acting on said projections respective-ly, such projection on the lower tappet lever passing up through the plane of the upper lever.

2. An internal combustion engine having exhaust and admission valves'located d1- which brings about the opening of the ad- -l are rectly opposite one another in a plancperpendicular to the cani shaft7 and having superposed tappet levers controlling said valves respcctively the upper lever having an opening through which a cani projection on the lower lever passes, and the lower lever having an opening through which passes a connection from the upper lever-to thc spindle of the valve controlled therehy, and a cani shaft having canis acting on said levers respectively.

il. Xn internal combustion engine having twin exhaust uml admission"valves for enc-h c vlindcr placed opposite one another in planes perpeinlicular to the cam shalt. coinhineil with tappet levers one operating the twin exhaust valves sind the other the twin BEST AVAlLABLE COF" 4admission valves.,` said levers arranged'in planes one above the other, the upper lever having an opening JChrough which passes a cam projection on the lower lever, and the lower lever having openings through which pass connections from the upper lever to the spindles of the valves controlled thereby, and a rain shaft having cams acting on Said levers respectively.

In witness whereof, I have hereunto signed my nume in the presencey oftwo suhsrrihing witnesses.

ETTORE ,BUG ATTI.

Witnesses: 'I

Crus. I. Piinssm", HENRI CARTIER.