US1116994A - Internal-combustion motor. - Google Patents

Description

end of its( ut stroke, together with a thor- ALICK L. CARTER,

0F CLYDE, OHIO.

- INTERNAL-OMBUSTION MOTOR.

Specification of Letters Patent.

Patented Nov. 10, 1914.

Application tiled October 19, 1912. Serial No. (1,704.

To all whom it may concern.'

- Be it known that'I, AmonL. Quran, asubject of the-King of Great Britain, and a. resident of Clyde, in the'count of Sandusky and State of Ohio, have invented a new and Improved Internah Combustion Motor, of which lthe `following is a full, clear, and exact description.`

My invention relates to anv improvement in internal combustion engines, and the object thereof is toprovide a' motor of, the kind mentioned, preferably of the'two-cycle type, which isY designed'to afford elicient and prompt and complete admission of the fuel charge when the piston is about at the ough cooling of all of the working parts of the engine when the same is in operation. These advantages I- attain by the use cfa cylinder containing a reciprocating sleeve valve which surrounds the piston, the valve having a 'pumping attachment which fits in an enlargement of the cylinder bore adjacent the head thereof, this pumping attachment serving tolcompress the fuel in a space formed by the inside surface of said bore, and a projection which extends inward from the head of the cylinder and enters the inner end ofthe sleeve, this sleeve also having suitable ports which control the infiow and outflow of vgas at the proper time with regard to the piston stroke.

On the drawings, the figure shows a side elevation partly broken away to show the interior parts in section of an engine embodying my invention.

Referring particularly to the drawings I show an engine framework 1, which com-` prises a pair of cylinders 2 bolted or otherwise secured to a crank case 3. This engine is preferably of the two cycle type, though I do not'necessarily limit my invention to this kind of motor, and .neither'do I limit myself to two cylinders, as shown, the number of cylinders being immaterial. The: upper ends of these cylinders are incloscd bya water jacket 4, to which leads a supply pipe v5, and inside of each of the cylinders reciprocates a piston @connected by a rod 7 to a crank 8 on a shaft 9 rotating in bearings in the crank case` and having at one end a flywheel 10. The jacket 4 surrounds the portion of each cylinder 2 which incloses the firing chamber', and each cylinderhas its bore enlarged at .the head .end to form ,a space of increased diameter 11. Into this space extends a projection 12 carried by the head of each cylinder 2, and havin its central axis forming a continuation o the axis of the cylinder itself. This projection 12, however, is not of the same diameter as the inside diameter of the firing chamber in closed byeach cylinder 2, but its radius is less than the radius of the firing chamber by an amount equal to the thickness of areciprocating sleeve 13, which fits into the normal bore of the cylinder and surrounds the piston 6, and is open at both ends, receiving at its inner end the inner end of the projection 12.

The space between the inner surface of the enlarged bore'of the cylinder and the cylindrical outer surface ofthe projection 12 forms an annular chamber in which reciprocates a pumping pistonl secured to the upper end of the sleeve 13, This pumping piston is preferably cast integral with the sleeve and comprises a shoulder`14 and a longitudinal extension 15 carried upon the upper end of the sleeve 13, and this sleeve carries at its lower end a pair of bearings 16 which receive pins 18 engaging rods 17 which carry at their opposite nds suitable straps to engage eccentrics 19 on either side of the crank pin 8;,and from this construction it will be seen that both the sleeve and piston are reciprocated when the shaft 9 rotates.

Adjacent the enlarged bore 11 and above the space Il receiving the coolingdluid I form an annular passage 20 in the wall of the cylinder which communicates with the space between the inner surface of the bore 11 and the surface of the extension 12 through circumferential openings 21. It will also be seen that the sleeve 13 has openings 22 adjacent the collar 14, which establish communication between the inside ofthe'slceve 13 which forms the power chamber and the pumping space below the pumping attachment. All the parts above described are alike in both cylinders, and the annular chambers 20 for each cylinder at the head ends thereof communicate with an intake pipe 23 which supplies them with explosive mixture froiathe f-I'he ico to be limited to this type, but wish to have it understood that the above description is illustrative only, disclosing but one em bodimentof my invention, and I reserve to myself the right to make whatever changes in the shape, size and arrangement of the parts as fairly fall Within the scope and spirit of my invention.

Having thus described my invention, I claim as new and flceire to secure by Let ters Patent:

1. In an internal combustion engine, the combination of a cylinder having the bore thereof enlarged at tbc head end, a reciprocating sleeve valve in said cylinder and forming a tiring chamber, the cylinder having a projection extending into the head end and forming with the cylinder Wall av fuel pumping chamber in said enlarged end of the cylinder, a pieton in the liringchamber' and moving in the said reciprocating sleeve valve, and a piston carried by the reciprocating sleeve valve and working in the pun'iping chamber, a fuel mixturf chamber surrounding the pumping chamber and communicating by orts directly with the pumping chamber ihr the passagr of the .fuel mixture into the lattel, the sind ports being controlled directly by the piston in the pumping chamber, the sleeve valve being provided with ports below the said piston, the said ports being controlled by the said projection and adapted to overrun the end of the same to permit the charge to pass directly from the pumping chamber into the firing chamber, and means fonoperat ing said pistons at different speeds, the piston in' tie pumping chaiizbcr creating a vacuum therein before the fue] mixture is admitted thereto.

2. In au internal combustion engine, the combination of a cylinder having a reciproeating sleeve valve therein forming a WorkN ing chamber, a piston reciprocating in the said Working chamber, the cylinder having its bore enlarged at the head end and having an annular' fuel supply chamber formed in its Wall and surroundmg the enlarged portion of the cylinder, a projection carried by the cylinder head and extending into the enlarged bore, an annular pum ing piston carried by the reciprocating seeve'valve and moving in the space between the said projection' and the inner surface of the enlarged portion of the cylinder, said space communicating directly with the fuel supply chamber through circumferential ports .in the wall of the enlarged portion of the cylinder, and also adapted to communicate directly with the workin chamber through circumferential ports in t e said sleeve valux at its iunction with the piston, means for operating the working piston, and me, a:- for operating the reciprocating sleeve to cause the pumping piston to drawfuel l l into aid space from the fuel chamber and compress the same and deliver fuel to the Working chamber.

3. In an internal combustion engine, the combination of a cylinder having a recipro rating sleeve valve therein formix'ig a Working chamber, a piston in the said Working chamber, a. projection carried hy'the cylluder head and extending into tue cylinder, the pro, 'tion being spaced from the wall of the cylinder to form an annular fuel pump` ing chcmberat said end of the cylinder, the wall of said chamber being provided with ports, an annuler carburetor chamber sur-- rounding` the said pumping chamipcr. and communicating' directly therewith through said ports, an annular pieton carried by said sleeve valve and moving 4in the said pum ing chamber and controlling said ports, t e sleeve valve having ports extending therethrough below the` said annular` pistonjor establishing direct communication hctvteer the ,pumping chamber and the said Working chamber.

4. In an internal combustion engine, the combination of a cylinder having a reciprx'rV eating sleeve valve therein formlng a WorkM ing chamber, a piston in the said working chamber. the, bore of said cylinder being enlarged at its head end, a projection carried by the les head and extm Veg into the cul .flic Wall of s. loro h=.. orte therethrough, .in aan carla.; v' chamber surrounding the en-y larged particu of the cylinder and communi caring directly therewith through said porte in the cylinder Wall, an annular piston carrid. by the sleeve valve and moving in 'the space between t" c wall of the enlarged bore and the proie on the cylinder heath-the said piston 'toutvri'lling said port-r, means comp; porte. extending through the eleve valve adjacent its junction with the annui.; pistou for ectablishing direct com-- nmnicatcn lvl-tween said space., l'iclow the said annular piston, and the raid Working chamba-r, and means for operating seid pistous.

5. In au internal combustion engine, the combination of c vlirrler having an exhaust passage surrclxnfliuff the same 'wol exhaust ports leading to san-.i paAV the. Laid cyl inflcr having the bore t enlarged at thc head end, u fuel chamber raeurcunding the enlarged bore, an annular pumping chamber formed in the enlarged en'd of the c i'udcr the Wall of the cyllndcr forming the fewer wall of said pumping chamber and having ports therethrough opening directly into the fue! chamber, a 'wip-.coating sleeve valve in Il cylindernmi forming c working chan'sbcr an :ir-.nadir proofing riet-ou cairied en leeve vel: c and wm mpc ing in the said working cham-wn sind means for operatingthe Working pfmn and the. raf

- ciprocatng sleeve vulva ma: huid ports being adapted tu ,vefrun' the 1'11 testimony whereof l' hw@ signed my emi 0f ibs inner wa of the pumping chum name to this specification in the presence of 15 with ue fuel Chamber, vthe Said seevg, vave l 1 r v u* Jer im estnmhsh ducct commuuwamon bei mo subsonbmg wltnesseb.

ha ing pons amending therethrough adjails y'muclwn wlt'n the nmudur piston,

buffa hf; pumping chamber and the work- ALICK L. CARTER. '1mg Q m5; puts adaapmd to reglster with the eX "if hang?. @mts @if the cylugder, a plston mov- Vitnesses HOMER IMETZQAR, ELLEN LAMA,

Der, this said sleeve valve also hav-

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