US1151499A - Rotary valve for internal-combustion engines. - Google Patents

Description

w. SCHUTTE ROTARY VALVE FOR INTERNAL COMBUSTION ENGINE$.

APPUCATION FlLED MAR. 25, 1914.

Patented Aug. 24, 1915.

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- w. SCHUTTE. ROTARY VALVE FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED MAR. 25; 1914.

Patented Aug. 24,- 1915.

3 SljEETS-SHEET 2.

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w. SGHUTTE. ROTARY VALVE FOR INTERNAL COMBUSTION ENGINES.

APPLICAHDN FILED MAR. 25.1914. I 1,151,499. Patented Aug. 24, 1915.

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WILBUB. scHU'rTE, or cnrcaoo, iLLmoIs.

Specification of Letters Patent.

ROTARY VALVE non INT RNAL-companion ENGINES.

Patented Aug. '24, 1915.

3 Application filed march 25, 1914-. Serial-No. samee.

To all '2 01/1 t may maker-n:

Be it known that l,'WILBUR SCHU'I'IE, a citizen of 'the United-States, and a resident of the city of Chicago, county of Cook,and State of Illinois, have invented certain new and useful Improvements in Rotary Valves for Internal-Combustion Engines, of which the following is a specification.

My invention relates to rotary valves for internal combustion engines which arc design'eitl for use especially in controlling the intake and exhaust of the explosion chamber of aniengine. 1

The object of my invention is the production of a valve as mentionedwvhich will be of improved construction and efficient; in. operation. I

Other objects will appear hereinafter.

With these objects in view my invention consists in the combinations and 'arrangemerits of parts hereinafter described and claimed. i

The invention will be best understood by reference to the accompanying drawings forming a part of this specification, and in which- Figure 1 is a vertical longitudinal section through the upper end ,portionof an internal combustion engine equipped with a valve embodying my invention, Figs. 2 and 3 are sections taken 'on lines 22 and ti -,3 respectively of Fig. 1, Fig. 4 is a top planyiew 'offljthe construction shown in Fig.1,qFi'g. 5 is a: view of one end of the construction, Fig. 6 is a view of the opposite end of. the construction, Fig. 7 is atop plan 'view.o the upper end portions" of the cylinders of the engine with the: valve removed, Fig. 8 is a side elevation of the body of the valve detached, and Fig. 9 is an end view of said .yalve body.

The preferred form of construction as illustrated in the drawings comprises aninternal combustion engine consisting as shown in this case of two cylinders 6 which are surrounded by cooling jackets 7 formed in the walls of said cylinders. The upper ends of the explosion'chambers which are constituted in said cylinders are closd by a plate 8 which is rigidly secured in osition by means of bolts 9 and 9.; The plate 8 is formed with openings 10 which register with the upper ends of cooling jackets 7.

Also formed in said plate for ,c'o iiperation,

with each of the cylinders 6 are intake and exhaust ports 11and12 respectively, there and the latter of said chambers within the being two of each which are arranged in transverse alinemcnt as clearly shown in Fig. 7. Said ports are elongated in order to afford intake-and exhaust passages of considerable size and in order to'permit of the elongation desired the upper ends ofthe cylinders 6 are also enlarged gas clearly shown in the several views.

Mounted .upon the plate 8 is a cylindrical housing 13 rigidly secured in position by means of the bolts 9 which pass through laterally projecting flanges formed at the base of said housing as clearly shown in Figs. 2 and 3. Formed in thegperipheral wall of said housing is a cooling jacket 14 which communicates through openings 10 in plate 8 with the jacket 7 of the engine cylinders so that with this construction, the

cooling chambers 7 and l kwill be in constant communication so as to permit of the circulation of the cooling water from one to the other.

Rotatably mounted in the housing 13 is a valve body consisting of outerand inner tubes 15 and l6vwhich are spaced apart and rigidly connected so as to form independent concentric chambers 17 and 18., the former being formed between said tubes 15 and 16 tube 16.

Leading from the chamber 17 are passe es 19 formed in the tube 15, there being a p urality of passages 19 spaced in said tube for. registration with passages 20 formed in the housing 13 which communicate with the inf take ports 1 1 of each cylinder 6 asclearly shown in Fig. 3. Thepassages 19 cotiperate ing with each cylinder are arranged in circumferential alinement so that upon rotation of the valve body, said passages will successively register with the passages 20 and thus intermittently establish communication between the chamber 17 and the explosion chamber ofthe corresponding cylinder. Also the passages 19 and the adjacent ends of the passages 20 are so spaced that two of the former will simultaneously. relgis- 3. With this arrangement where three pas- 1 ter with the latter as clearly: shown in sages 19 are formed in the tube 15 equally spaced apart therein as shown, the chamber 17 of the valve will'be brought intocommunication three times with the explosion chamber of the corresponding 'ne cylin- 10 der upon each complete rotation o the valve Leading from. the tube 16 of the valve body are pipes 21 communicating at their inner-ends with the chamber 18, the outer ends of said pipes being positioned for registration with passages 22 which lead to the exhaust ports 12 of the plate 8. Three pipes 24 lead from the chamber 18 for 're'gistration with the ports 12 cooperating with each engine cylinder, theouter ends of said pipes being equally spaced} apart in the periphery of the valve body and the adjacent ends of the passages 22 being so arranged that two passages 21 will communi cate simultaneously with said passages 22, as clearly-shown in Fig. 2, the arrangement beingidentical with that of the'passages 19 relative to the passages Hence with this arrangement it will be seen that exhaust or scaven ng of each cylinder of the engine will ta e lace threetimes upon. eaehocomplete rotation of the valve,

the arrangement of the ports in ,the valve The fuel supp body being of course such that the periods of intake-and. exhaust will alternate.

In cider to prevent leakage of the gases the passages 21 or vice versa, pac ing rings 23 are'employed which are arranged in circumferential grooves 24; .formed in the periphery of the valve be yibetween said passages as clearly shovvnin Fig.8.

'ly-pipe 25 leading from 'the carbure t er t26 communicates with the chamber "17 of the valve body through openings 27 fpIIll'lBddllIhB tube 15 ofthe valvebody, there being a .plurality of said-openings 27 spaced close aliiie nentso that in the operation of the valve the fuelis'upply pipe 25 will be in constant communication with said chamber'17. Cooling of the, tube 16 "of the valve body.

is effected through the medium of a cooling jacket 28,; which ;is formed in the walls of said' 'tiibe as clearly shown inthe several views' One end of said jacket com'municates through a' plurality of passages 29 formedin, the head 30 of the valve, housing with the corresponding end vof the :cooling jacket ofsaid housing, the .inner ends of saidpassages29 registering with spaced perforations 29" formedin the outer wall of said cooling jacket 28, and the outer, ends of said passagesco nmunicating with openwall ofthe jacket 14. The pipes 21 leading from the chamber 18 are also, surrounded with cooling jackets 28 which comm-unicate at their inner ends with the j cket/28 as clearly shown in Figs. 1 and 2. I

The-head 30'of the'housing 13 is secured in position by bolts 31,-and mounted in; said headiis ascrew plug-32 which serves to close the adjacent, end of'the passage18, suitable paeking being'employed at thispoint in order to insure a tight connection. The plug 20 above described.

together in circumferential ings 29 'formedin the corresponding endfi 32 is formed with an extension 32' which extends into the chamber .18 a considerable distance in order to serve-as a bearing for the tube 16 as will be readily'understood. The head- 30 serves, as will be i-eadil understood, as a means-of locking the va ve body against longitudinal movement in one direction, longitudinal movement of said valve body in the op osite directiombeing pre- .vented by'a hea 33 secured to the opposite tained when the en 'ne is"in operation, it

being clear that col Water introduced into the jacket 7 will flow therefrom. into the jacket 14 through the openings lo inplate 8. From said jacket 14the water will fl'ow through openings 29", passages 29 and openings 29' into the jacket 28, whencethe water will be withdrawn through openings 35 into drain or waste pipe 35.. v

Rotation of the valve body is, effected-by means of a gear 36 which is rotatably mounted in a housing' 37 secured in position at one end of the housing14 by the bolts 34, l V i said gcir snugly fitting said'housing'so as to be retained thereby in fixed relation with the valve housing. Said gear is connected with the valve bod by means. of pins 39 formed at one end 0 the latter which extend gagement with recesses .40 formed in the adjacent side of the gar36. With this atrangement it will be seen that a releasable connection between the valve body and said gear is effected, the arrangement being such that When-it is desired to reniovethe valve body from the housing 13', it is only required longitudinally of said valve body for ento remove the head 30 in which event'the .1

valve body maybe slid longitudinally fromj position in said housing, the pins 39 engag I ing the recesses 40 in such a manner: as to permit of this disengagement. '-Converse1y:- A.

in reinserting the valve body automatically be operatively connected with the gear 36-when. said body is properlyposid: 1 5:11

valve body sopositioii'cd,'the p ns 39 will 7 ear 36. meshes with a'pinion 41 fixed to ,a

tionedin the housing 13, sir. v with in engagement with the recesses shaft 42 which is operatively connected.

through gearing; (not shown) with v the crank shaft of-the engine or other driv ng element for effecting rotation ofthe valve 2 body at a speed properly timed with the re;

ciprocations of the'pistonsof the enginelcyl h inders.

the same will grooves 45 formed in the periphery of. the

valve body-iii order'to lubricate the same.

With the construction set forth then it will be seen that in the operation of the valve the engine cylinders will be supplied with fuel from the chamber'17 to which fuel issupplied by the supply pipe 25 leading from the carbureter, and exhaust will take place into the chamber 18 one end of which will discharge into the outside atmosphere through a mufiler which may be employed as is usual. 1 The passages leading from the chambers 17 and 18,will be so spaced that the explosions of the engine cyhnders will alternate or, where more than two cylinders are employed, so that the cylinders will opcrate in proper succession.

While I have illustrated and described the preferred form of crastruction for carrying my invention into effect, this is capable of variation and modification without depart ing from the spirit of the invention. 1, therefore, do not wish to be limited to the precise details of construction set forth, but desire to avail myself of such variations and modifications as come within the scope of the appended claims.

Having described my invention what I claim as new and desire to secure by Letters Patent is:

1. The combination in an internal combustion engine, of an explosion chamber; a cylindrical housing; intake and exhaust ports leading from said chamber to the interior of said housing; a hollow cylinder rotatably mounted in said housing; two independent concentric chambers formed in said cylinder; a plurality of spaced passages extending from each of said chambers terminating in theperipherv of said cylinder, the passages communicating with each of said chambers being'positioned in circumferential alincment for successive registration with one of said ports; and intake and exhaust pipes communicatingrespectively with said chambers, substantially as described.

2. The combination in an internal combustion engine, of an explosion chamber; a housing; a plurality of intake ports and a plurality of exhaust ports leading from said chamber to the interior of said housing; a

"hollow cylinder rotatably mounted in said housing; two independent concentric chambers formed in said cylinders; a plurality of spaced passages extending from each of said chambers terminating in the periphery of said cylinder, the passages communicating with each of said chambers being positioned in circumferential alinement for suv cessive registration with said intake and exhaust .ports, said passages and ports being correspondingly s aced whereby the former will simultaneous y register with a plurality of the latter; and intake and exhaust pipes communicating respectively with said chambers', substantially as described. y

3. The combination in an internal combustion engine, of an explosion chamber; a cylindrical housing; ports leading from said chamber to said housing; a' valve rotatably" tated; spaced pipes leading from said inner tubes fixed together tochamber, the inner ends of said pipes being secured in said inner tube, the outer ends of said pipes being positioned for successive registration with the other of said ports; and intake and exhaust pipesc'ommunicating res actively with said chambers, substnntial y as described.

cally arranged tubes fixed together to forn'r two independent concentric chambers within said valve body: spaced passages in said outer tube leading from sald'outer chamber for successive registration with one of said ports, when said valve body is rotated; spaced pipes leading from said inner chamber, the inner ends of said pipes bein .secured in said inner tube, the outer en of said pipes being positioned for successive. registration with the other of said ports; intake and exhaust, pipes communicatin respectively with said chambers; and a coo ing jacket formed in said inner tube, substantially as described.

5. The combination in an internal combustion' engine, of an explosion chamber; .a cylindrical hpusing; ports leading from said chambento said housing; a valve rotatably mounted in said housing, the body of said valve comprising inner and outer concentrically arranged tubes fixed to-' for successive registration Wlth the other of cylinder into two concentric independent said ports; intake and'exhaust pi es con) chambers; passages extending from 1 said 'go ."mi nicating respectively with saidc ambers', chambers terminating in theperiphery'of nicooling acket formed in said innesi' tu-be; said cylinder, said passages being inlet and outlet passages for the eoo'lin for intermittent, registration W1 slid mrts liql i'du'egistering with opposite endsof sui upon rotation ofsaid cyhnde'n; intake and 'r'mher tubeg -and a plurahty, of spaced o exhaust; orts. commumcating respe'ctively g5 in-said ends of said pipe establislifxi g with sai chambers; .and cooling jackets communication. lmtween said, cooling jacket formedin said housing and said partition in" 10 8116 said passages, substantially as deconstant communication with eabhoth'eq 5 said'chax'nbei'to said housing; a 1101 oiv cylt substantiallyas described. I v :6.I he combination in an internal com In testimony. whereof I h'avesigned' m 30 nhustionengine; of an explosion chamber; a name to this specification'in thepre'aence of "cylindriealhousing; ports 'leadin from twosubscribingwitn." 1 Y I I WILBUR SCHUTTEJ "a indeirotatably mounted in said housin a Witnesses: l I cylindrical partition concentrically fix in v .Josmm R. H. Porn-5,. sgjid cylindelf dividing the interior of said HELEN F Lmms. v

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