US1068567A - Valve for internal-combustion engines. - Google Patents

Description

P. W. GOEN.

VALVE FOR INTERNAL GOMBUSTION ENGINES.

APPLICATION FILED MAB.27,1912.

Patented July 29, 1913.

i 41 j (6, l

EN w UNITED STATES PATENT onirica.

FREDERICK WILLIAM conn, or Los ANGELES, CALIFORNIA.

VALVE FOR INTERNAL-COMBUSTION ENGINES.

Specication of Letters Patent.

Application filed March 27, 1912. Serial No. 686,638.

To all whom it may concern.'

Be it known that I, FREDERICK VViLLiaM CoEN, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles, State of California, have invented i a new and useful Valve for Internal-Combustion Engines, of which the following isa specification.

. This invention relates to valves forcon` trolling the admission and exhaust of interfnal combustion engines, particularly those operating on a four-stroke cycle.

The main object of the invention is to provide a valve for the stated purpose which will open and close the ports by sliding motion, and which will automatically take up any wear so as to always provide a tight closure. Y l v A further objectief theinvention is to provide for simplifying `the construction andoperation of the Avalve with a four-stroke cycle engine by causing one member of the valve to have a drag or frictionally resisted movement, relative to the other,l whereby a different operation of the valve is secured on different strokes without the necessity of special mechanism for that purpose.

Other objects ofthe invention will appear hereinafter. f 'A The accompanying drawings illustratean embodiment of the invention, and referring thereto- ,l I

Figure 1 is a. plan of the valve. Fig. 2 is a vertical section ofthe upper portion of the' cylinder showing thev valve therein, the valve operating mechanism being shown in elevation. Fig-3 isa horizontal section on line wrs. Fig. 2. Fig. 4 is a section on line xj-frtin Fig. 3.. Fig. 5 is a section on line m5- af showing an automatic. governor for disconnecting the valve when the speed is excessive.

1 designa'tesa cylinder which is provided i in its head 2 with inlet ports 3 and outlet i ports ll, sa id ports communicating respectiveljv with the inlet and exhaustchainbers 5 and G, inlet chamber 5 communicating with the usual means for supplying mixture. and

exhaust chambey (3 communicating 4with the outer air or exhaust pipe.- An oscillatory valve member 3. forme-:l asa flat disl-z. rests against the top of he cylinder on the inside thereof and is' carried by a tubular valve! .stem 9 extending through a bore 10 in the l top or head of the cylinder, said stem being l provided atits upper end with an arm 12 connected to a suitable operating means hereinafter described. Another valve disk 13 is carried by a central valve shaft or stern 15 extending within the tubular valve stem 9 aforesaid, said central valve rod or stem being provided Wit-h a collar lengaged by a spring 17 which rests on the outer valve stem 9 so as to tend to press the lower valve disk 13 upwardly against the upper valve disk and hold said valve disks in frictional contact, whereby any rotative movement imparted to the upper valve disk by rotation of its stem tends to drag the lower valve disk around in the same direction.

A stop means is provided for limiting the consisting, for example, of a bracket 20 mounted on the cylinder head and provided with a rectangular slot 21 through which extends the upper end of the inner valve shaft 15, saidend of the inner valve shaft being formed, for example, in diamond` shape, as shown at 22, so as to permit it to turn to a limited extent in either direction within the slot 21.

Oscillatory movement of the :rm12 is produced, for example. by means of :i link 23 connected to said arm and to a crank 2l on a shaft 25 which is operated by any suitable means, such as spiral gears 26 and 27 from the main she ft 28 so as to turn at onehalf the speed of the main shaft.

Incase it is desired to provide governor means for` controllingthe operation of the valve, the construction shown more particularly in Fig. 5 may conveniently be used. the'arm 12 carrying a pendulum 30 having a weight 31' at its outer end and being provided with an arm 32 having a pawl or dog 33 adapted to engage within a notch 34 in the outer valve shaft 9, a spring 35 connecting the said arm 32 to the outer shaft 9 and tending to draw and hold said pawl in said notch. The arm 12 in this case is rotatable on the outer-shaft 9, its movement, however. being limited`by a `key 36on said arm engaging in an arc-shaped slot 37 in the outer shaft. p

The lower or inner valve disk 13 is pro- 4vided with wide ports 40 on the exhaust side andwith relatively narrow ports l1 on tht` inlet side. vided with relatively narrow ports 'fl and 44 on the inlet and outlet sides. The posi The other valve disk 8 is proy iio l inlet ports 3 to communication through-the ports L13 'iii the upper'disk .the ports 41 in thelower disk being vat this time in register with the ports l13,'and the lower disk being carried around 'by friction withthe upper diskso that in this inovementthe inlet port is opened. t During this 'movement the ports LLifon the other .sidcnre movingaway Afrom V the exha'nstports 'ft'so that the exhaustfis closed. 4At a certainlpoi'nt -otl this movement of the upper disk corresponding to the termination ofgthe intake: stroke, the

' movement ofithe lower iski's'arrested by the stop means QQ, `21 and the' continued- 'movement of the upper disk closes the inlet opening by moving pastl the stationary ports ",20 3, this movement corresponding'tothe co'm' pression stroke.' As the.disk 8' begins its 'return movement-in the oppositedirection i K to tliatshown in the larrow, the disk 13' at first moves withit so that theconditionsremain the saine as th `ay`wereA in the preceding stroke, namely, closing-.the inlet opening,

this corresponding'to' the explosion stroke.

. In`the latter half of thisopposite rotation head,' having passed the'rports 3. Vsame time the ports 44 on the other sideare' nioyiiigbeneath the fixed 'ports J,.thereby of the disk 8 the inovement'of the disk 13 is arrested so that, the ports 143A and 41- are again brought into' register, but during this portion of the stroke the bports'i?) are moving beneath `tlie'closed portion of the cylinder At the opening exhaust cioiinection, ports 40 at that the purpose of balance.

1.' A valve-foi' gas engines, comprising., in

Combination with a casingtwo disksrotatablym'ouii-ted therein and' in centactqx'vitlr each other, a shaft connected to one of s aid' disks, .means "-for oscillating 'said shaft and either'directiomsaid casing and disks'havthe diskconnected thereto and means for I pressing theother disk against Ysaid operi atedt disk soils to he dragged therewith in. v

ing portsfor registering with oneanother to open communication through the valve, the, ports in the' operated disk being Aclosed by the other disk when the latter is 'dragged iii onedirec-tion, .and opened therebywhen -it iS dragged in the other direction.

Q. A valve' for gas engines, comprising, iii

combination with the cylinderfcasing, two

disks rotatably mounted in the end ot'said casing, aftubiilar shaft connected to one `o't said disks, meaiisfoioscillating said shaft i and .the diskl connected thereto, means' ifor-A 65; the operated. disk so. as to be dragged there;

pressing the other diskginto eontzi-ctfwith with, inetinsfor limiting the 'relative align-1 lar movement of said second inentioneddisk,

the end ofthe cylinder and said disks being? Aprovided with-ports for registering ywith one another toopen communication-through the valve, -and th'e ports in 'the operated disk i being closed by thel dragged'disk when the. latter is dragged in one direction and opened thereby `when the latter is dragged in the other direction, f

In testimony whereof, I have hereunto set i .my hand at Los Angeles, California,'this 19th day ofhlarch, 1912. f side. in the lower disk' being of sufficient A widthfto alimys 'provide free-communica;- tion when the ports 44 and 4C are in, register, valve disk 13 bei-iig extendedt'o that side for' vrieitpniuoiiWILLIAM e'oEN. In presence ofl f I ARTHUR P. KNIGHT, Al CRANDALL. t

t 'Copies of this patientix'iiay be obtiiied for ve cents sich, by addressing. the Commissioner of Patente,

' A H washington; 1i. c.

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