US1304744A

US1304744A - Internal-combustion engine

Info

Publication number: US1304744A
Authority: US
Publication date: 1919-05-27
Anticipated expiration: 1936-05-27

Description

A. DICKERSUN.

INTERNAL COMBUSTION ENGINE. APPLICATION FILED MAY 22. ms.

3 SHEETS-SHEET I.

JNVENTOR.

BY. a,z:

DECKERSON. HITERNM COMBUSTION ENGlNE.- APPLICATION FILED MA '22,.1918

Patented May 27, 1919.

3 SHEETS-SHEET 2.

A TTOIxA EY A. DICKERSUN. INTERNAL COMBUSTION ENGINE.

APPLICATlON FILED MAY 22, I913. LEQQQYQQ; Patented May 27, 1919.

3 SHEETS-SHEET 3.

HVV/f/V TOR. UQ @Cfiw ENT QFFliQE ARTHUR DICKERSDN, 0F SALT LAKE CITY, UTAH, ASSIGNOR, BY DIRECT AND MESNIE ASSXGNMIENTS, T0 DICKEBSON ENGINE COMPANY, A CORPORATION OF UTAH.

I NTEItNAL-COMIBUS'IION ENGINE.

Application filed May 22, 1918.

To all whom it may concern lie it known that I, Alrrunn Dlciucnson, a citizen of the United States, residing at Salt Lake City, in the county of Salt Lake and State of Utah, have invented certain ings in which similar letters and numerals of reilermice indicate like parts throughout the several figures and as described in the specification forming a part of this application and pointed out in the appended claims.

In. the drawings in which I have shown a substantial embodiment of my invention Figure 1 is an end view in elevation of the engine, with partsvshown in vertical section. Fig. 2 is a vertical longitudinal section through the engine showing a portion of the inside of the cylinder case, one piston, and connection rod in elevation, and a portion of the valve case, one piston and per tions of the crank shaft in section. Fig. 3 a view in perspective of the valve case, val v: shaft and manifold with portions cut away. Fig. 4 is a plan view of the lower or bottom portion of the valve case. Fig. 5 is a transverse section of the same. F ig. 6 is an inverted plan view of the top or upper portion of the valve case. Fig. .7 is a trans verse section of the same. Fig. 8 is an elevation of the valve shaft showing the relative position of the ports therein some of which are shown in dotted lines. Fig. 9 is a transverse section of the valve case and valve showing the relative sizes of the ports. Fig. 10 is a view in transverse section showing the valve shaft in the position when the ports are just opening to exhaust.

The engine shown has four cylinders, A, C and'iD, which are formed by bolting two coacting 1 and Qtogether within each of which are formed semi cylindrical recesses or openings constituting one-half of the said cylinders, A, B, C and D and one-- Specification of Letters Patent.

Patented May 27, Serial No. 236,031.

half of the crank case E. The crank shaft F is mounted in said crank case E with. suit able bearings The outer side of each of said cylinder sides 1 and 2 forms one or more of the walls of the water jacket G which is formed by bolting the plates 4 on extended flanges of the sides 1 and 2 and adjacent said cylinders A, B, C and D. A sprocket wheel is secured on one end portion of said crank shaft, and another sprocket wheel 6 is secured on the end portion of the valve shaft 7. A chain belt 8 connects the said crank shaft and valve shaft whereby the motion of said crank shaft is imparted to said valve shaft 7. Pistons are operated in the respective cylinders and connected with the said crank shaft F. The valve case ll is constructed by bolting four plates together and rigidly upon the upper end of the cylinders A, B, (I and l) and as a closure. for said cylinders, and a bearing for said valve shaft 7. Two of said plates, shown at 9 and 10 are semicylindrically recessed on their abutting faces as at J to form the bearings for said valve shaft 7 and are also longitudinally recessed on their outer faces to form a water jacket 13 for the valve shaft. The watcr jacket 13 is completed by the outer plates 11 and 12 when the said four plates arc bolted togethcrand in place on the said sides 1 and 2, and connected with the cylinder water jacket (i by conduits lczuling from one to the other. lntake ports 14- are provided to introduce the exploding gas to each cylinder by recesses cut into and prim 'tially across" the contiguous faces of said plates 9 and 10 preferably at right angles to the valve shaft recess J and horizontally disposed. Exhaust ports 15 are likewise provided leading from said valve shaft rccess at right angles thereto and horizontally disposed, to the opposed side of said valve case H. Ports 16 are cut vertically through said plates 10 and 11 connecting said valve shaft recess J with the respective cylinders A, B C and D andare wider than ports 14 or 1-). Atubular intake casing 17 provided connecting all of said intake ports 14 with the carburetor of the engine, which is not shown, to form the intake manifold, and on the opposite side ,of said valve casing H a similar casing 18 is provided connecting all of said exhaust ports 15 to form the exhaust manifold. An oil pipe 19 is Tilt) provided leading from the said crank case E to an Oil case 20 which is secured on the top of the said plates 12, and oil conduits 21. are bored through the said plates 9 and 1? connectingsaid oil case 20 with the said valve shaft recess J for lubrication of the valve shaft 7. The said conduits 21 are bored senii-spherical at their lower end to form a sea t for ball valves 22 which are carried in said conduits, said ball valves control the flow of oil from the said case 20 to the valve shaft 7.

I thus provide a splash system of oiling for the crank shaft and connections with impulses imparted to the oil carried in said crank case to force some of said oil through the said pipe 19 and supply the required oil in the said oil case 20. The commonly used spark plugs 2t are to he screved into open.- ings 25 leading to the interior of said cylin ders near their top for firing the compressed in said cylinders by their respective pistons 23. The said valve shaft 7 is a solid metal shaft with portions thereof cut out to form the ports 26, one of which is provided for each cylinder, and in longitudinal alineinent with the said ports '14-. i5 and 16 and adapted. to he brought into operative transverse alincinent with two of said ports according to the rotation of said valve shaft and the particular cylinder to he fired. And to be more specific: a segment of said shaft 7 is cut away for each cylinder of such portions of the shaft as will leave the ports 14 and 15 closed when the contiguous port 2% is parallel with the valve case ll. see Fig. ll. And when the said valve shaft is in operative position it will he in longitudinal alinement with said ports i l. 15 and 16, and, with the cords of the segments so positioned relative to each other and the said ports 1+3, 15 and 16 as to bring a desired intake port ii and. its adjacent port 16 into connection with one oi" said ports 2th to form an intake coruluit for that particin lar cylinder. while one of the other of said ports 26 will he in connection with an exhaust port and its adjacent port 16 to form an exhaust conduit for exploded gas) from one of the other cylinders. and at the same time the other ports 26 will he closed, that is, the uncut portion of said valve shaft will close the ports l-l, 15 and 16 of the other cylinders. The object of cutting; out a segment of the sha ft to form the ports 26 rather than to form said ports entirely within the shaft is to provide less material in the shaft at that particular point to release the expansion oi that portion t the shaft which occurs when that portion of the shaft closes the said port 16 at the instant of firing, as well as to receive the cooling elij'ect. when in the intake po i.

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therein is secured on said valve siaft 'i', and. a ll-shaped spring 29 is secured to said plate 12. A roller 30 is journaled on the end of said tl-shaped spring 29 to operate in said cam groove 28 whereby said valve shaft 7 made to reciprocate longitudinally. The said spring 28 allowing less reciprocation of the said shaft when the sha"; is made to rotate rapidly than when rotatingslowly.

"The operation of oily invention is follows:

With the parts of the engin in the p: sition shown in Fig. 2 the pi. ton in the cylinder A is ready to draw in the gas and the piston in the cylinder B is ready to err-- haust through the

ports

16, 2t and 15,

when the crank shaft I is rotated. By firing the gas as described in one of the other cylinders for instance D. the crank shaft wil l. he rotated and cylinder A. will lied. with gas from the. intake maniii'old 17 through the ports 1%, 26 and 16, while the exploded gas in cylinder B will be driven out. as the exhaust theretronn through. the exhaust mani told 18, and the gas in cylinder will be compressed. In the meantime the valve shaft is losing rotated by the chains 8 and as the said ports 26 are large main practically open until the respective pistons have traveled practically their full throw and then they close quickly which allows e flow of the gas and as the said crank shaft I is given. two rotations on its axis while the valve shaft '2 is rotated once, when the piston in cylinder l) is moved downward by said explosion the pistons in ii and C will he moved 'LZQWt "d, the cylirn der B to exhaust and the cylinder to compress a charge oi gas and instantly thereafter to tire it.

The collar 2! the can; groove 28 thcrearound when moved by an element operable in said groove will. cause said valve shall. 7 to reciprocate when is rotated, and my improvement is in providing a spring element as shown in the lit-shaped spring 29 with the roller 30 engaging in said cam groove 28, whereby. when the said valve shaft slowly rotated its reciproca; tions Will he the full. throw or said groove. but when said shaft i rotated rapidly the said spring and cam will. yield relatively one to the other as the rotations of said shaft are increased and decreased, and by that means distribute the lulnricat-ion without the usual scoring of said shait't from lack of oil and wear. As said valve shaft is rotated the said ports 26 allow the said balls 22 to I'll? main in their seats andv when the uncut portions or said valve shaft are brought into engagement or contact with said balls they are raised out of their seats and oil will llow through the conduits 2i tor lalnirutiugg;

enough to rctit) Construction for the crank case and water jacket for internal combustion engines, cylinder for the same which maybe quickly repaired by shaving the contiguous faces of the sides forming the cylinders, together with a yieldingly reciprocating rotary valve thereon with a case and eoacting ports by which expansion of the parts is eliminated, the passage and control of the gases is accurate, rapid and positive, and all wearing parts of which may be oiled by novel luln'icating means.

Havingthus described my invention I desire to secure by Letters Patent and claim 1. An internal combustion engine consisting of duplicate plates bolted together and recessed to form spaced apart explosion cylinders and a crank case at one end of said cylinders; a crank shaft mounted in said crank case: pistons operable in said cylinders and connected with said crank shaft; coacting recessed plates bolted together and to the end of said duplicate plates to form a closure for said cylinders, and provided with ports opening into said cylinders; a yieldingly reciprocating rotary valve shaft operable in one of the recesses in said second n'ientioned plates having segment portions cut away to form ports adapted to enact with the ports in said plates; and means to conduct explosive gas to the ports in said. plates with means to tire said gas When compressed in said cylinders.

[in internal combustion engine com prising a rotary valve shaft having seg ment portions cut out to term ports therein; a casing tor said valve shaft having ports formed therein adapted to coact with. the ports in said shaft; a collar having a cam groove cuttherein secured on said valve shaft; and a spring secured to said casing and a portion oi. which is operatively con nected with said collar to dampen the action of the cam groove and shorten the endwise niovementsoi said valve shaft when said shaft is rapidly rotated and lengthen said. movements when said shaft is rotated slower.

23. An internal combustion engine con sisting oil duplicate plates bolted together and recessed to form spaced apart explosion cylinders and a crank case at one end of said cylinders; a crank shaft mounted in said crank case; pistons operable in said cylinders and connected with said crank shaift; coacting recessed plates bolted to gether and to the end oil duplicate plates to term aniosure for said cylinders; and provided. with ports opening into said cylinders and oil conduits bored to form valve seats; a yieldin'gly reciprocating retarv valve shai't operable in one of the recesses in said sectn'nl mentioned plates hav ing segment portions cut away form ports adapted to coact with the ports in said plates, ball valves in said oil conduits to be operated by said rotary valve shaft; means to conduct explosive gas to the ports in said plates with means to fire said gas when compressed in said cylinders; and an oil pipe connecting each crank case with said oil conduits.

i. An internal combustion engine comprising a rotary valve shaft having segment portions cut out to form ports there in; a casing for said valve shaft having ports formed therein adapted to coact with the ports in said shaft and oil conduits to term valve seats; ball valves adapted to operate in said conduits by said valve shaft; a collar having a cam groove cut therein secured on said valve shaft, and a spring secured to said casing and a portion of which is operatively connected with said collar to dampen the action of said cam groove and shorten the endwise nioven-ients of said valve shaft when said shaft rapidly rotated and lengthen said movements when said shaft is rotated. slower.

5. An internal combustion engine consisting of duplicate plates bolted together and recessed to form spaced apartexplosion cylinders and a crank case at one end of said cylinders; a crank shaft mounted in said crank case; pistons ope able in said eylinders and connected with said crank shaft; coacting recessed plates bolted together and to the end of said duplicate plates to form a closure for said cylinders, and provided with ports, and with oil conduits opening into said cylinders; ball valves operable in said conduits; a yieldingly reciprocating rotary valve shaft operable in one of the recesses in said second mentioned plates having segment portions cut away to form ports adapted to enact with ports in said plates and operate said ball valves; and means to conduct explosive to the ports in said plates with means to fire said when compressed in said cylinders.

6. An internal combustion engine. comprising a rotary valve shaft having segment portions cut out to form ports therein; a casing for said valve shaft having ports formed therein adapted to coact with the ports in said shaft and oil conduits; ball valves in said oil conduits operated by said rotary valve shaft; a collar having a cam groove cuttherein secured on said valve shaft; and a spring securid to said casing with a portion operatively connected with said collar to dampen. the action of said cam groove ainlshorten endwise movements of said. valve shaft when said shaft is rapidly rotated and lengthen. said movements when said shaft is rotated slower.

7. [in internal combustion engine consisting of duplicate plates bolted together and recessed to Form spaced. apart explosion i re cylinders and a crank ease and an oil case at one end of said cylinders; a crank shaft mounted in said crank case; pistons operable in said cylinders and. connected with said crank shaft; coasting recessed plates bolted together and to the end of said duplicate plates to form s closure for said. cylinders, and provided Wi'l: ports opening into sairl cylinders and hm g oil conduits bored therein; ball valves in suirl oil conduit; 21 yielclingly reciprocating rotary valve shaft operable in one of the recesses in said seoonrl mentioned. plates having segment portions cut away to for-iii ports adapted to coact with the ports in said plates and operate said ball valves; means to conduct plosive gas to the ports in said plates with means to fire said when compressed in said cylinders; and an oil pipe said oil case and said oil. conduits.

8. An internal combustion engine conr prising a rotary valve casing having alined ports formed therein and a larger adjacent port at right, angles to said alined ports adapted to eoaot ii 1th the ports of, a rotary valve journalorl in said casing; a yielilin gly reoiprooalin rotary valve with segment porlions euloul; in form, por is mlapi'ed to coaot with. either of said alinecl ports anol its connecting adjacent rightangled porl; an oil casing 011 said 'valve easing with-oil conduits therein and valves in said conduit, adapted to be operated by said rotary valve shaft; a collar having a 021m groove outtherein secured on said valve shaft; and. a spring secured in said raising and a portion of which operativoly connected with said collar to dampen the action of said cam groove and shorten the endwise movements of said valve sl aft when said shaft is rapidly rotated and lengthen said movements when said shaft is rotated slower, V

5). An internal combustion engine conr prising a rotary valve shaft having ports therein for the pas-sa s of gas; a casing haw ing ports adapted to coast with the ports in the valve shaft; a cam for reciprocating the valve shaft; :1 spring in varial -lydampen the action of, the cam; oil conduits with valve seats therein leaoing through the (res ing to the valve shaft in line with the ports ihercin; and valves in the oil ronijluirs which are adapted to he lifted from lilieir sea when the body of the valve shaft i": opposite the outlets of i'he oil conduits.

In testimony whereof I have afiixecl my signature.

ARTHUR- DICKERS N.