US1103639A

US1103639A - Plural-cylinder engine.

Info

Publication number: US1103639A
Application number: US68195512A
Authority: US
Inventors: Rollin H White
Original assignee: White Co
Current assignee: White Co
Priority date: 1912-03-06
Filing date: 1912-03-06
Publication date: 1914-07-14
Anticipated expiration: 1931-07-14

Description

H. WHITE. PLURAL CYLINDER ENGINE.

APPLICATION FILED MAR. 6,1912.

Patented July 14:, 19M

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(Luz/676607 Maw R. H. WHITE. PLURAL CYLINDER ENGINEL APPLIOATIOIN FILED MAR. e, 1912.

Patented July 14,1914,

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lu/enfor E EFFrIIPI HITE.

PLURAL CYLINDER ENGINE.-

APPLICATION FILED mums, 1912,

Patented July M, 1914.

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R. H. WHITE. PLURAL CYLINDER ENGINE. APPLICATION FILED MAR.'6, 1912.

Patented July 14, 19142.

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t'JNtTED snares PATENT RQLLIN WHITE, OF CLEVELAND HEIGHTS VILLAGE. OHIO, ASSIGNOR TO THE W'HITE COMPANY, 01? CLEVELAND, OHIO, AL CORPORATIQN OF OHIO.

PLURAL-CYLINDER ENGINE.

Specification of Letters Patent.

Patented July id, 191%.

Application filed March 6, 1912. Serial No. 681,955.

, following is a full, clear, and exact description. 7

The primary object of this invention is to reduce the weight. the size, and the cost of plural cylinder internal combustion engines of? the V-type, without reducing their etliciency; to do away with puppet valves, and to provide suitable means for lubricating the valve mechanism.

The invention involves the employment of a single casting which includes the cylinders, the exhaust manifold and the valve casings,'said manifold and valve casings being disposed within the V-space between the two rows of cylindersand water circi'ilatinc; space which surrounds the cylinders, the exhaust manifold, and the valve casings, This construction and combina tion. of parts, and other suboidinate combinations of parts which contribute to the cfiiciency of the engine, constitute the improvements which are defined by the appcndcd claims; and'said invention in the best form known to me is shown in the ac-' conipanying drawings and hereinafter fully described.

In the drawing, Figure 1 is a side elevation, partly broken away and sectioned, of an engine embodying this invention. Fig. 2 is a front end view of said engine with the valve driving; mechanism sectioned. Fig. 3 is a vertical transverse section. in the planeindicated by line 3-8 on Fig. 1. Fig. 4 is a plan view of the engine when the cap plate is removed, andsome of the parts sectioned. Fig. 5 is a sectional plan view in the plane of'line 5-5 on Fig. 3. Fig. 6 is a sectional plan of somewhat more than onehalf the engine in the plane indicated by line 6-6 on Fig. 3. I

The engine showivhas six cylinders; but, obviously, the invention is capable of being; embodied in an engine having any even number of cylinders. The engine is what is known as the V type; that is to say. the cy1- inders are arranged in two rows. The three cylinders A, A, A'in one row have their 'axes'in the same inclined plane; and the three cylinders A, A, A in the other row have their axes in another inclined plane; and said planes intersect at the axis of the crank shaft. In a six cylinder engine these planes lie at an angle of degrees to each other, and at angles of 15 degrees to a vertical plane which passes through the axis of the crank shaft. I i

The cylinders are cast bloc; that is to say, all six cylinders are part of the same casting, which casting also includes the valve casings B, B, the exhaust manifold C, and cored out water spaces which surround the cylinders, the exhaust manifold and the alve casings. Each of the cylinders A, AKA, has near its top a port (1., i

which leads to the valve casingB. Each of the cylinders A, A A, in the other row has near its top a port a whichleads to the valve casing B, Associated with each of these ports a, a is an inlet port (1, which leads from the associated valve casing through the top of the casting, so as to communicate with the inlet manifold f which is a space or chamber between the top of the casting and a cap plate F which is removably secured to the top of said casting. Associated with each of the ports a, a is also an exhaust port a which leads from the.

associated valve casing to the exhaust manifold C. Y

Suitable valves, ,n'hich ,1 will be subsequcntly described in detail, are provided for controlling the flow of gas from theinletmanifold to the several cylinders, and from the several cylinders to the exhaust mam-- fold. That is to say, the ports (t, a of the several cylinders will be connected with the associated inlet ports a? during the suction strokes of the pistons in the associated cylinders. Said ports a a. will also be con nccted with the assoc. during the scamngina i. in the severa'i cylinders- Said ports will be closed completely during the compression and explosion strokes of the piston.

The exhaust manifold C referred to is a tube which is an integral part of the same casting in which the cylinders are formed, This tube is located in the V-shaped space between the two rows ct cylinders. An exhaust pipe C is connected with the rear okes of the piston Within the casting are cored out water i exhaust ports a liil jacketing spaces H which surround the exofjports a, a", a.

' and are a) set that will he connected with the order indicated by the exponent figures as. described, in that it so f" haust manifold and the several cylinders and the valve casings. Vater is delivered to these water circulating spaces from a tube it, which lies within and near the bottom of the V-shaped space between the two rows of cylinders, and is an integral part of the casting. The front end of this tube projects forward so as to permit the attachment of a water supply pipe, and its open rear end lies near the rear end of the casting. The discharge outlet for the coolin water is through a hole It in the top 0 the casting and near the front end thereof. The cooling water, therefore, enters the pipe 71. and is discharged into the Water circulating space within the casting near the rear end thereof, and flows upward and forward and is finally discharged through the hole it. The cap plate F is formed with an integral tube f whose open bottom registers with the hole h when the, cap plate is secured in position.

Any suitable valves and valve operating mechanism may be employed with the construction thus far described. But, since it is desired to avoid the use of puppet valves,

the construction shown in the drawings has been devised. Two cylindrical valve casings B, B are formed as integral parts of the easing, in the V-shaped space between the two rows of cylinders, but in a plane above the exhaust manifold. They extend from one end ofthe casting to the other, and the rear ends of these valve casings are closedby a cap plate J. In these cylindrical valve casings the two cylindrical valves E, E are rotatably mounted and nicely fitted. The surface of the valve E is cut away or grooved at three points, 6 e, c. The length of these grooves measured lengthwise of the valve, is such as corresponds with the lengths of the ports a, a a The extent of these grooves, measured circumferentially, is such that during about one-quarter of the revolution of the valve communication will be established through each groove between the associated port a and the associated inlet port a For approximately another quarter of the revolution communication will be established through each groove between the associated port a and exhaust port a During the remainder of the revolution there will be no communication between the port a and either of the ports a a". a a

The valve E, which is fitted in the valve casing 13 is substantially like the valve E, has three grooves e o;- cooperationwith the associated groups These two valves E, E revolt/eat one-half the crank shaft speed, the several cylinders the inlet manifold in applied to the reference letter A. These valfies are driven from the crank shaft P by means of a vertical shaft K which has a lower bearing M, through which it passes into the crank case G. It has an upper bearing m through which it passes into a housing m which is an integral part of the casting. This housing has a removable cap 912. The worm gears e, e are fixed respectively to the front ends of the two rotatable-valves E, E. A worm is on the upper end of the shaft K engages with these two worm gears. A worm gear 7: on the lower-end of the shaft K is connected by means of a train of gears n, n and n with the crank shaft P, to which the last named gear is fixed.

The two valves E and E have, because of the worm and worm gear driving mechanism, a tendency to move endwise in opposite directions. The end thrust of the valve E istaken up at the rear end by bearing against an adjustable screw R. The end thrust of the valve E is borne by an adjustable screw R. In order to lubricate this valve mechanism oil is discharged through pipes S, S, into an annular space 6 between the rear ends of these valves and the plate "J, withi the rear ends of the two valve casings. Each-of the valves has a hole 0 extending longitudinally through it from one end practically to the other end. Diagonal holes e lead from the central longit-udinal hole in these valves to the space I), and it is through these longitudinal holes that oil, delivered into the space I) will flow through the valves to the front end thereof, and that oil will be discharged from 'the front end of the valves into the housing an. From this housing the oil will flow down between the shaft K and its upper bearing (said shaft having a spiral groove) into a tube T, which embraces the shaft and. extends from the upper to the lower bearing, and from this tubethe oil will flow between the shaft (Which has a spiral groove) and its lower bearing into the crank case.

Each of the valves E, E has several radial ducts 6 leading from the central hole 0 therein to the surface, and it is through these ducts that oil will be discharged to lubricate the engaging surfaces, between the valves and the valve casings.

The crank shaft P has three cranks 7) which are set at 120 apart and they are connected in any suitable or well known manner with 'the several pistons of the several cylinders; that is to say, one crank will be connected with the pistons and the 'two associated cylinders one in each row.

The inlet manifold f between the cap plate F and the top'of the engine -will be connected with any suitable carbureting apparatus by means-0f the mixture inlet p p Q- The foregoing is a descriptionof the specific construction which is shown in the drawing, and no attempt has been made to catalogue'the various changes which obviously may be made therein without departure from the invention which. is defined by the appended claims.

Having described my invention, I claim: 1. In a plural cylinder engine, the combination with a single casting in which are 10 formed two rows of cylinders disposed V- wise, an exhaust manifold which is in the V space between the two rows of cylinders, valve casings which are also located in the V space between the two rows of cylinders, and water circulating spaces which surround the cylinders, the exhaust manifold and the valve casings,there being a port leading from each cylinder to its associated valve casing, an inlet port associated with :1) each cylinder leading from the associated valve casing through the top of the casting, and a port associated with each cylinder leading from the associated valve casing to the exhaust manifold, of a removable cap secured to the top of the casting thereby in closing an inletmanifold.

52. In a plural cylinder engine, the combination of a single casting in which is formed two rows of cylinders disposed V-wise, an exhaust manifold which is in the V space between the two rows of cylinders, valve casings which are also located in the V space between the two rows of cylinders, a water inlet tube which is, formed in the V space between said cylinders and has an openfront end, and is extended nearly to the rear end of the casting and is open at its rear end, and cored out water circulating spaces with which the rear end of said water inlet tube discharges, which water spaces surround the cylinders, the exhaust manifold and the valve casings and has a water discharging hole at the top of the casting near its front end, of a removable cap secured to the top of the casting thereby inclosing an inlet manifold, said cap being formed with a water discharge tube which registers with said water discharge hole in the casting when the cap is in place.

8. In a plural cylinder engine, the combination of a single casting in which is formed two rows of cylinders disposed V-wise, an exhaust manifold which is in the V space between the two cylinders, two longitudinally extended cylindrical valve casings which are located in the V space between the cylinders and above the exhaust manifold,- there being a portleading from each. cylinder to the adjacent valve casing, and an inlet port associated witheach cylinder leading from the associated valve casing through the top of thecasting to the inlet manifold, and an exhaust port associating with each cylinderleading frorn the associated valve casing'to the exhaust pianifold, and there being also within the casting water circulat ing spaces which surround the cylinders the exhaust manifold and the valve casu a, ct

two valves rotatably mounted in said two two rows of cylinders disposed V-wise,

exhaust manifold which is in the ii-space 83; between the two cylinders, two longitudinally extended cylindrical valve casings which are located in the V space between the cylinders and above the exhaust manifold,- there being a port leading from each cylinder to the adjacent valve casing, and. an inlet port associated with each cylinder lead ing from the associated valve casing through the top of the casting to the inlet manifold, and an exhaust port associating with each :3 cylinder leading from the asoraated valve casing to the exhaust manifold, and there being also within the casting water 'llclifiik ing' spaces which surroui'id the cylinders, the

exhaust manifold and the valve casin s, of {.3 two valves rotatably mounted in said two valve casings, each valve having surface grooves located at places such that each groove coljperates with a group of three ports associated with a cylinder, means for rotating said Valves, each of said valves hav-" ing a hole extended through it from end to end. and having lateral ducts leading from said hole outward, means for discharging oil into the rear ends of said valve casings, and means for conducting the oil from the front ends of said valve casings to a suitable reservoir therefor.

5. In a plural cylinder engine, the combination of two rows of cylinders disposed \l-wise, two cylindrical/valve casings arranged in the \l-shaped space betweeiri the two rows of cylinders, there being ports connecting the cylinders of one row with one of said valve casings, and there being also ports 115 connecting the cylinders of the other row with the other valve casing, an inlet manifold common to all of the cylinders disposed within the V-shaped space between the twof rows of cylinders, said inlet manifold being 126 connected with each of the valve casings by as many ports as there are cylinders connected with said valve casing, an exhaust manifold common to'all of the cylinders, which exhaust manifold is connected with 1 5 the two valve casings by as many ports'as there are cylinders connected with each valve casing, a rotary valve in each valve casing having surface grooves through which communication will be made from 139 each cylinder to the inlet manifold and from each cylinder to the exhaust manifold.

6. In a plural cylinder engine, the combination with a row of cylinders, an inlet manifold, an exhaust manifold and a tubular valve casing disposed at the side of the row of cylinders and between the exhaust manifold and the inlet manifold, there being a port leading from each cylinder to said valve casing, an inlet port associated with each cylinder leading from the valve casing to the inlet manifold, and an exhaust port associated with each cylinder leading fromthe valve casing to the exhaust manifold, a r0- tatable cylindrical valve mounted 'in said valve casing and having as-many surface grooves as there are-cylinders, each groove being located in a position to cooperate with the three ports associated with a cylinder, said valve being tubular and having a plurality of ducts leading from the hollow center to the surface of said valve, means for discharging oil into one end of the valve casing, means for conducting the oil from the other end of the valve casing to a suitable receptacle therefor, and means for rotatin' said valve.

7. n a plural cylinder engine, the combination with a row of cylinders, an inlet manifold, an exhaust manifold and a tubular valve casing disposed at the side of the row of cylinders and between the exhaust manifold and the inlet manifold, there being a port leading from each cylinder to said valve casing, an inlet port associated With each cylinder leading from the valve casing to the inlet manifold, an exhaust port associated with each cylinder leading from the valve casing to the exhaust manifold, a rotatable cylindrical valve mounted in said valve casing and having as many surface grooves as there are cylinders, each groove being located in a position to cooperate .with the three ports associated with a cylinder, said valve being tubular and having a plurality of ducts'leading from the hollow center to the surface of said valve, means for discharging oil into one end of the valve casing, a vertical shaft mounted in two bearings supported by the front end of said casting, a tube loosely embracing the vertical shaft and extending from the upper to the lower bearings thereof, a housing over the upper end of said shaft and front ends of the Valves, a worm fixed t0 the upper end of said shaft, and worm gears meshing therewith fixed respectively to the front ends of said valves, and mechanism transmitting motion from-the engine'crank shaft to said vertical shaft.

In testimony whereof, I hereunto aflix my signature in the presence of two witnesses. ROLLIN H. XVHITE. Witnesses:

H. R. SULLHAN,

E. L. THURSTON.