US814421A - Valve mechanism for internal-combustion engines. - Google Patents

Description

PATENTED MARK 6, 190 3.

VALVE MECHANISM FOR ZNTS Elk; AL QOMBUSTION ENGINES APPLICATION FILED AUG.Z7,1904.

UNITED STATES rerun errron.

HERBERT AUSTIN, OF BIRMINGHAM, ENGLAND, ASSIGNOR TO THE WOLSELEY TOOL AND MOTOR CAR COB'IIANY, LIMITED, OF

' BIRMINGHAM, ENGLAND.

VALVE MECHANlSiM FOR INTERNAL GQMBUSTION ENGINES:

Application filed August 27, 190 flerial No, 222,418.

1'0 allwhom it may concern.-

Be it known that I, I'IERBERT Austria, en-

gineer, a subject of the King of Great Britain, residing at Berwood Grove, Chester Road, in the city of Birmingham, England, have invented certain new and useful Improvements in Valve Mechanism for Internal-Combustion Engines, of which the following is a specification.

This invention has for its objects improved means of a simple character by which the area of opening of an air-valve of an internalcombustion engine may be readily varied and improved means of.: arry ing a portion of themechanism used in connection with an air-valve or air-valves of a single, double, or multiple cylinder internal combustionengine which enable such portion of the mechanism to be removed and replaced mew-t being taken to ieces.

The part of t e invention by which the ob- 'ect first-above named is effehted consists,

roadly stated, in regulatingillie area of opening of the valve by moving inward or outward, as required the fulcrum of the lever through the medium of which therod which is moved by a camopefis the valve. This lever is fulcrumed within a slider which is capable of movement in suitable guides in a direction to "move the fulcrum outward, or, in

the opposite'direction, to move it inward;

Accordin to a convenient method of operating the s ider it is constantly pressed in an outward direction by a spring which presses against one end thereof and is moved in the opposite direction against such pressure by a screw which resses against the other end of the slider. T threaded, so that a very partial turnwill be sul'licient to move the slider the maximum distance which can' at any time be required, and the screw may be readily turned through the medium of a sideway-arm thereof, connected through the inedium of a rod with the hand or governor mechanism by means of which the regulation is to be effected.

The means according to this invention by which the object second-above stated is offected comprises in the case of a single motorcylinder a mounting which is fitted around the outer end of the air-valve box and is held thereupon by pillar-screws from the breech Specification of Letters Patent he screw is preferably quick-,

"Patented March 6, 1906.

may be, carries the lever or levers which are operated by the rod or rods which are themselves o erated by the cam or cams and has the guide or guides for such rod or rodsformed therein, and the slider aforesaid or each slider is conveniently carried to slide within guides formed in opposite sides of the mounting, and the spring therefor is carried within a recess formed in the mounting. The screw for the slider or each slider is screwed within a cross.- piece which bridges across the space between and joins the said sides at their outer edges or tops. without disconnecting therefrom the lever or levers or the spring or springs or screw or screws.

In the drawings which illustrate my invention, Figure 1 shows, as to the left-hand half thereof, a vertical section through the air-valve chamber for one of the cylinders of a .vertical-cylinder engine and the means by which the area of the opening of the valve is regulated and the means of carrying parts of the air-valve mechanism and, as to the righthand half, a corresponding outside elevation in relation to the other cylinder. Fig. 2 is a plan view of the parts shown by Fig. 1. Fig. 3 is a transverse section taken in the lane indicated by the line at a; of Fig. 1 of the mounting by which a portion of the airvalve mechanism is carried; and Fig. l is a transverse section through such mounting and through the means for re ulating the area ofair-valve openin", taken in the plane indicated by line 1 y of Big. 1.

In the several views such parts only are shown as are necessary to make the invention clear.

Describing first the means of regulating the area of air-valve opening, the pivot-pin A, upon which each valve-lever B is respectivel y fulcrumed', is mounted within a bridle C, the opposite sides of which are fitted to slide Within. vertically slotted openings a,

formed through opposite sides of a mountingi), which is rigidly connected with the brace i The mounting may be removed.

of the cylinder. he breech ends E of the cylinders, which are marked by broken iin Big. 1, are shown only by such figure. Each bridle (I is constantly pressed in an upward direction by means of a spiral spring I), which is largely contained within a recess formed down within the mounting I) for such purpose, and each bridle may he moved down against the pressure of the spring and 'o retained against such iressure in any desired position by means or a screw 0, which is screwed through a bridge-piece d, which passes acrossabore the bridle C and is rigid with thernounling 1), being formed conveniently integral with the sides k of the mounting. The height oi the fulcrum center of a lever B, and consequently the area of opening of the corresponding air-valve F, may be readily regulated through the medium of the screw 0. The regulation may be effected either through the medium of a rod m. from a governor, as will be readily understood, or by hand, eoiweniently through the medium in either case of an arm c of the/screw. In the arrangement illustrated the bossfof each lever is "us-t an easy between faced portions g o the opposite sides of the mounting U and is also just an easy fit between the o its sides of the bridle C, whereby t in previnited from sidewise movement 1 to iountinp; D. i

Gila The mountin' -i is fitted around turned portions a of the outer ends of the air-valveioxrs G and is held thereupon by pillar- 3 5 screws H from the breech ends E of the cylindcrs. This including not only carries the levers B, but has formed therewith the upper guides for the valvc-rods i,,,thr0ugh the medium of which the yalve-levers B are operated .0 from the. cams. The mounting D may be removed from the valve boxes and pillarscrews without disconnecting therefrom the lovers 3 or the springs b or screws 0. It a mounting, such as l), is required for a single cylinder engine only, it is similarly constructed as when required for a two-cylinder engine, but is of course shortened. Ii". the mounting in to be used with tin engine having more than two cylinders, it made with the portions for each cylinder i itegral with one another and is supported lily a pillar-screw from each breech end or btherwise. by as :many of such screws as may be desirable.

in the case of a horizontal engine the screws ll, herein described as pillar-screwsf would or course themselves be horizontal.

It will be obvious that the means of carrying the fulcrum oi the lever B to enable its position to be regulatedlior the purpose above shown may be varied, and I do not limit myself, therelore, to'the particular means of doing this which are described and illustrated, though these are the means I prefer for the purpose.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

1. Means of re ulating the area of opening of an air-valve 0 an internal-combustion engine which comprise a level through the mcdium of which the valve is o erated, means for actuating said lever, a bri e Within which the lever is fulcrumed, guides within which such bridle may move in an inward and outward direction, a s ring which tends to move 7 5 the bridle in one irection along its ides, and a screw device by-which the brid e may be moved in the opposite direction against the pressure of the spring, substantially as set forth. 7 8o 2. An internal-combustion engine with a plurality of motor-c linders, having valve- )oxes, mountings w ich are integral with each other and fit detachably about the outer ends of the said valve-boxes, breech-end pillaiscrews which aid in Sun orting said mountings on the cylinders, an valve actuatin mechanism of the cylinders carried by an removable with said mountings, substantially as set forth. 9o 3. An internal-combustion engine, having two motor-c linders disposed side by side, and provide with valve-boxes on their respective breech ends, a mounting extending across and. fitting dctachably about the re- 5 s eetive valve-boxes, illar-sorews between t e ends of the respective cylinders and the ends of said mountin and valve-actuating mechanism of the cylinders carried by the said mounting and removable therewith, sub :00 stantially as set forth. I 4. An internal-comlmstion engine, havin a valve-box on its cylinder, a mounting which is fitted dctaehably about the outer end of said valve-box, breech-end pillar-screws so :05 disposed as to act as add'itional'supports for said mounting, and valve-actuating meohan-- ism carried by said mounting and removable therewith.

1 5. Means for regulating the area of opening 1 10 of an air-valve of an internal-combustion engins, which comprise a lever through the medium of which the valve is operated, means for actuating said lover, an inwardly and outwardly adjustable fulcrum for such level", a spring device tending to move the fulcrum in one direction, and an adjustable stop by means of which the fulcrum may be moved in tllie opposite direction, substantially 'as set ort L 1 In witness whereof I have hereunto signed my name,,this 17th day of August, 1904, in the presence oi two subscribing witnesses.

HERBERT AUSTIN.

Witnesses:

Ronna'r G. Gnouss, ETIIEL M. WILLIAMS.

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