US1267529A - Internal-combustion engine. - Google Patents

Description

T. J. FAY.

INTERNAL COMBUSTION ENGINE. APPLICATION FILED MAY 6. 1914.

'19267,529. Patemed May28,1918,

2 SHEETS-SHEET I.

nventov'.

mitneses Gfwfe T. J. FAY.

' INTERNAL COMBUSTIUN ENGINE.

AFPucATIoN HLED MAY6,1914.

1 ,287,529., Pand May 28,1918.

2 SHEETS-SHEE]I 2.

THOMAS I. IFAY, OF LEVELAND, OHIO, AsslGNoR, BY MESNE SSIGNMENTS, 'I'O THE STANDARD I'ARTS COMPANY, OF CLEVELANID,V OHIO, A CORPORATION OF OHIO.

INTEBNAL-COMBUSTION ENGINE.

To all 'wbom z't may ooncem:

i Be it known that` I, THOMAS J. FAY, a citizen of the United States, residing at Cleveland, in the county of Cuy'ahoga and State of Ohio, have invented a certam new and useful Improvement in Internal-Combustion Engines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

This invention relates to valve mechanism for internal combustion engines andvmore particularly to a construction and method whereby such mechanism may be efficiently cooled. More limitedly, the invention relates to a construction and arrangement of parts whereby, in a valve mechanism-comprising an open-ended sleeve which 1s reciprocably mounted on a hollow piston or abutment, effective means are provided whereby the said hollow piston or abutment, as well as the contacting valve, may be cooled through the circulation of liquidi through the abutment and the temperature of the incoming and outgoing gases may be eflicientl'y regulated. With the foregoing objects in view, the invention may be further and more generally defined as consist- 'ing of the combinations of elements set forth in the claims heretoannexed and illustrated in the drawings accompanying and forming part hereof, wherein Figure 1 represents a seotional view through. a valve mechanism constructed in accordance with my invention showing the same in connection with the adjacent part of the cylinder; Fig. 2 represents a similar view illustratin a modification of the invention shown in Fig. l.

Describing by reference characters the various parts illustrated herein, 1 denotes the cylinder of an internal combustion engine and 2 the water jacket usually provided therefor and surrounding the upper end of the same. The valve mechanism co erating with the cylinder' is of the genera type shown and described in the application of Clifford S. Goby No. 514,098, filed August 23, 1909, and comprises generally a cylindri'oal valve casing 3 having a port registering with the port 4 extending from the cylinder head. The valve casing 3 is preferably cast with the water jacket casing which surrounds the upper end of the cylinder and Specifieation of Letters Patent. Patente May 1918, Application filed May 6, 1914. Seial No. 836,634.

has at its upper end an annular shoulderp extending at right angles therefrom, which shoulder is connected' by a cylindrical wall 6 with the top of the water jacket casting and, as stated before, is preferably part of such casting.

As is' the case with the construction shown in the aforesaid Goby application, it is preferred to use two valves in connection with the cylinder, namely; an inlet valve and an exhaust valve. As the valves are substantially identical in construction, it will be necessary to show but one such valve, and the exhaust valve is the one 'chosen for purposes'of illustration. The cylindrical portion 6 is provided with a port 7 by which it communicates freely with the water jacket 2.

'8 denotes ,a 'sliding 'sleeve reciprocably mounted within the casing 3 and operated by means of a connecting rod 9, in the ordinary manner. This sleeve is provided With ports 10 which are adapted to register with the passageway 4 whereby, in the case of an exhaust valve, the exhaust gases may escape through. the ports and pass upwardly and outwardly through the port 11 extending through the water jacket and, in the case of an inlet valve, the combustible fiuids may enter the pasageway 4, the port ll then serving as an inlet port.

12 denotes a hollow piston or abutinent which fits the inner wall of the sleeve 8 and which is located immediately below the passageway 4. This piston orabutment is suspended from the shoulder or seat 5 through a reduced intermediate neck 13 which is rovided at its top with an outwardly projecting shouldered flange 14 by which'the abutment is suspended and a passageway for the fiuids is provided between the reduced neck portion 13 and the valve sleeve 8 and the casing 3. v

It will be observed that the piston or ubutment 12 is closed at the bottom, and the abutment assembly is open from the bottom th-roughout its length, whereby its upper end communicates freely with a Chamber 6a provided within the cylindrical wall 6.

15 denotes a cover for' the chamber 6, which coverhas rigidiy secured thereto a stand pipe 16, which rstand pipe projects downwardly and centrally with respect to w the abutment neck 13, the lower end of this` stand pipe projecting substantially asfar asv the bottom of the hollow. abutment. p

In the operation of the engine (assuming the -valve heretofore describedto .be an exhaust valve)'the exhaustgases pass through the port 4 and the port or ports 10, whence they are directed through the upper end of the reciprocating sleeve 8 and through the valve casing to the exhaust portJ 11, giving u ud; in the case of an inlet valve, the entering :Combustible fiuids follow the reverse course and are heated by the Cooling solution i or liquid. The stand pipe 16 delivers relativelycold solution or liquid to the abutrnent or piston chamber below the port 4 and-the heatingV of this liquid by the exhaust gases causesl-l` the Cooling liquid to Circulate so that it rises through the narrow neck portion 13 and is llelivered through the port 7 into the valve and cylinder water jackets, the constructiqn afiording a relatively largesurface to be heated in proportion to the volume of Coolirglsolution or liquid necessary to fill the reduce neck portion 13.

In F g. 2 Vthere is shown a Construction which ,"is substantially identical With that shown in connectiomwith Fig. 1, the elements from 1 to 14 bein in faCt identical and being designated by like reference Characters'` In this modification, however, .the

cap 17 does not carry a stand pipe, but liquid is positively circulated through the abutment and the valve'and cylinder water jackets by 'means of a pipe 18 to which any suitable liquid circulating device is connected. In this case the pipe 18 is' connected to the bottom 19 of the abutment 12. z i

By the construction 'illustrated and described herein, th`e Cooling liquid may be Circulated throughout the abutment and the neck connected thereto while the fiuids passing to and from the engine cylinder are separated and isolated from the Crank casing and are directed in their course to or from the engine cylinder, according as the valve isan inlet or an exhaust valve.

Reference has been made hereinbefore to the Water jacket of the cylinder and Valve mecham'sm. By this expression I do not mean to imply that the Cooling liquid shall be simply Water. On the ccntrary, I contemplate 'employing' a Cooling liquid that will not boil at the ordinary boiling point of water nor at the ordinary working temperature of internal Combustion Cx'aginc. lfor such a fluid, I may use oil. ofuspecific gravity 9.9. By using such a Cooling liquid, its temperature may be maintained substantially uniforin thi'oughoutW thereby la ely preventing local different-os of temperature in such liquid.

In both constructio=- the enlarged or valve-tibi o their heat to the Cooling solution or liqfrom the port a so as to provide a maximum for such enlarged ortion whereby a maxi-l mum Cooling of t e inner surface of the valve is provided. Also, in both forms of Construction shown herein, the port 11 is located above the port 4, whereby in the Case of an exhaust valve, the heated gases are caused to pass between neck 13 so that the said gases willfibe effi- Ciently vcooled in their passage to the port 11.` In the Case of an inlet valve, the in-` coming gases are warmed by their passage through the space between the valve 8 and the neck 13.

Having thus described my invention, What I Claim is 1. The combination, with an engine cylinder and a Cooling-liquid jacket therefor, of a cylindrical valve casing within the jacket and having a port Communicating the valve 8`-and the` With tne upper end of the cylinder, a rei sleeve, therebeing a fiuidport Communicating H with the interior of the valve caslng at a i point above the cylinder port, the abutment extension projcting `beyondwsuch flud port and Communicating with the jacket space, and a liquid supply pipe connected to the bottom of sald abutment and by means `valve sleeve within the casof which liquid is positively circulatedf through the elongated abutment, the extension thereof and the jacket space.

:2. `The Combination, With an engine cylinder and a Cooling-liquid jacket therefor, of a cylindrical valve Casmg within 1 the jacket and having Va port communicating with the upper end of the cylinder, a reciprocating valve sleeve Within the Casing and having a port intermediate of the ends thereof, a hollow abutment within the valve casing and having an enlarged lower-.end extending downwardly from the cylinder port and provided with a reduced extension projecting upwardly from such enlarged lower end and communicating at its upper end Withthe jacket space, the valve casing bein provided with a port above such lower en of the abutment, and a liquid supply ipe arranged to dischargeinto the hollow a utmrnt adiacent to the bottorn thereof.

, m 3.. ihe Combination, With an engine cylinder and a Cooling-liquid jaclret therefor, or a cylindrical valve casing and having a port 'zcuununicating na ii'zhe upperend of cv within the mam 3 extending downwardly from the cylinder port and provided wlth a reduced extension projecting upwardly from such enlarged lower end and communicating at its upper 5 end with the jacket space, the valve. casmg' being provided with a port above such lower end of the abutment, and a, liquid supply pipe connected to the bottom of Said abutment and by means of which liquid is positively circulated through the elongated abut- 1: ment, the extension thereof and the jacket space.

In testimony whereof, I hereunto affix my signature in the presence of two Witnesses.

THOS. J. FAY. Witnesses:

J. B. HULL, BRENNAN B. WEST.

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