US1692906A - Vaporizing heat unit for internal-combustion engines - Google Patents

Description

Nov. 27, 1928. 1,692,906

W. G. SCHNEE VAPORIZING HEAT UNIT FOR INTERNAL COMBUSTION ENGINES Filed Aug. 12, 1927 J) Amen '01 W5. 5 c'hnee Patented Nov. 27, 1928 UNITED STATES WILLIAM G. SCHNEE, OF KANSAS CITY, MISSOURI.

VAPORIZING I-IEA'I UNIT FOR INTERNAL-COMBUSTION ENGINES.

Application filed August 12, 1927. Serial No. 212,595.

The object of this invention is to provide means whereby the fuel fed to the cylinder of an internal combustion engine may be more thoroughly vaporized than is done with 5 the constructions now generally employed and the operation of the engine, consequently, rendered more e With this end in iiicient. view, the invention has for its object the provision of elements against whichthe inflow- 1 ing charge of fuel will impinge and which elements will be heated so that the charge will be very completely vaporized and will quickly explode and form complete combustion. The invention is illustrated in the accompanying drawing, in which Figure l is a sectional view of an engine head having the invention applied thereto;

Fig. 2 is a bottom plan View of the structure shown in Fig. 1;

Fig. 3 is a plan view showing another embodiment of the invention, and

Fig. 4 is a perspective view showing a third embodiment of the invention.

In the drawing, the reference numeral 1 indicates a portion of an engine head having a spark plug 2 fitted therein in the usual manner, and it is to be understood that this engine head may be the head of a single cylinder or may be a continuous head block extending over a plurality of cylinders, the invention being so applied as to operate in each cylinder of the engine. trated in Figs. 1 and 2, the engine head is formed with a recess or cavity 3 in its under side and formed upon the top of this cavity are a plurality of ribs or fins 4 which may be provided in any number and which, as shown clearly in Fig. 2, are preferably U-shaped in bottom plan, the ribs being disposed in parallel relation and approximately coextensive with the recess 3. The bends of the ribs may be connected by a bridge 5 thereby increasing the surface against which the charge may impinge and also increasing the heating surface which will act upon the charge. The

spark plug 2, it will be noted, is disposed between the ends of the straight side portions of the inner rib and the spark will not only act upon the charge but will also play upon the sides of the adjacent ribs or fins so as to heat the same.

In Figs. 1 and 2, the heating fins or ribs are cast integral with the head of the engine.

In Fig. 3, however, I have illustrated a heater element which is formed as a separate device and is provided at the curved end 6 with a In the construction illuslug 7 having an opening 8 therethrough through which a securing bolt or screw may be inserted into the head of the engine to secure the device in place. The ends of the straight sides of the ribs are connected by an integral bridging rib 9 at the center of which an opening 10 is provided through which a suitable fastening device may be inserted into the engine head.

Both the previously described forms of the invention are castings but the device of the invention may be otherwise produced, and in Fig. 4 I have shown a heater formed of sheet metal. In this form of the invention, a suitably shaped blank is treated in a bending machine so as to produce a base plate 11 with its edge portions and intermediate portions struck up and doubled on themselves, as shown at 12, to produce ribs projecting from the base plate at a right angle thereto. An opening 13 is formed through the base plate to accommodate the spark plug, and openings 14; are formed therethrough at proper points to receive fastening devices which may be inserted into the engine head to secure the device in place.

It will be noted that in all forms of the device, there is provided a plurality of fins or ribs against which the incoming charge of fuel impinges, and these several ribs or fins quickly become highly heated as each successive explosion takes place so that the combustion of the charge is complete and the efliciency of the engine is enhanced. The charge which enters the cylinder in the form of a spray is distributed over the hot fins or ribs and is completed vaporized, this action continuing through the compression stroke and up to the point of firing. The charge is instantaneously vaporized and converted into a highly volatile gas which is quickly ignited by the spark so that the entire charge of fuel is consumed giving relatively greater power to the motor and producing a more quietly running motor than has been heretofore attained while a motor equipped with the present invention will instantly respond to an increase of the gas supply. The use of the present invention eliminates fouling of the spark plugs from oil passing around the piston rings as such oil is sprayed up around the sides of the pistons on striking the heating ribs or fins and is consumed before it reaches the plug.

It will be noted that the spark plug is located nearer the open end of the rib or fin structure than the closed or bridging end thereof, and it Will be understood by those skilled in the art that the iniiowing charge is received at the open end of the unit to sweep across the spark plug. The flow is in the direction of the length of the ribs toward the closed end of the unit Which furnishes a large heating and vaporizing surface.

While I have shown the vaporizing or heating ribs as disposed Within a recess in the engine head, it must be understood that the invention is not restricted to such specific arrangement but the ribs may be used in any engine and may be located or ar anged in such manner as is best suited to the particular engine in which they are placed. In some types of engines, such as valve in head design, it may be necessary for the ribs to extend down into the cylinder Which forms the combustion chamber. It is also to be understood that While the ribs are preferably of metal, they may be of any material which may prove suitable for the purpose.

By the use of my invention, the fuel. is

heated and vaporized in the combustion chanr her and therein converted into a volatile gas, so that the full benefit of the charge is obtained.

Having thus described the invention, claim:

A vaporizing heat unit for internal com- In testimony whereof I afiix my signature.

WILLIAM G. SCI-INEE. 1,. 8.]

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