US1307619A - of wolverhampton - Google Patents

Description

L. COATALEN. INTERNAL COMBUSTION ENGINE.

APPLICATION FILED MAR. 20. I917- Patented June 24,1919.

1% Atty? lVolverhampt-on,

' NITED' sTATEs PATENT OFFICE.

LOUIS COATALEN,

BEAM Moron T all whom it may concern:

Be it known that I, LOUIS CoA'rALEx, a subject of the King of England, residing at Stafl'ordshire,= England, have invented certain new and useful -"Improvements 1n tion.

for its object to provide simple and im proved means for cooling the crank chamber, warming, the carbureters and the air which is carbureted, and for supplying the carbureter with air at the required pressure. In many cases the engine is so shut in by the fuselage of an aeroplane or the gondola of an airship that the crank chamber is not exposed to a natural draft and the oil becomes very highly heated.

This is obviated by the present invention by forming the crank case with a false bottom or casing, and by drawing the air for the engine through. the space so provided. The outer wall may be more or less permanently attached to or. formed with the bottom half of the crank chamber, and in any case it is preferred that it be extended so far up as to inclose the carbureters. The casing may be supplied with air under pressure obtained in any suitable manner and by I means of supplementary air inlets whereby air at atmospheriopressure is obtained the pressure of the air entering the carbureter may be adjusted To increase the cooling effect there maybe an air current or flow of air through the casing in excess of that re-- quired for the carbureter. That is to say, some of the air entering the casing may flow out again. a

' In the accompanying drawings,

Figure 1 is a side elevation showing one method of carrying out this invention, and

Fig. 2 is an end View of the same. Like letters indicate like parts throughout the drawings.

The en e illustrated comprises a pairofcylinder locks A set at a small angle upon a crank chamber B the outline of which is shown in dotted lines. The crank chamber is inclosed in a casing C which forms a jacket and is provided with an aperture-D and it preferably projects in the direction of motion, which may also lie close to the tip' 0F WOLVERH AMDTON, ENGLAND, ASSIGNOB 0F ONE-BLADE TO SUN CAR COMPANY LIMITED, 015 WOLVERHAMPTON,.E1IGLAN D.

Specification of Letters Patent.

Internal-Combustion En-. gines,,of which the following is a specifica- INTERNAL-COMBUSTION ENGINE.

Patented June 24, 1919.

Application filed March'20, 1917. Serial No. 156,140.

of-the propeller so that by the slip of the .propeller air is forced lnto the casing C This casing is closed at the top except for apertures at E which communicate with compartments F built around the canbureters G which communicate with the engine by means of the induction pipes H.

Preferably the carbureters' are completely inclosed so thatthe only air passing to the inlet pipes H is that which enters at D and travels over the surface of the crank case, cooling this and warming the air. By arranging the inlet D at the front the air is supplied under slight pressure due -to the motion of the engine through the air, or to the slip of the propeller, and this is important in the case of an engineworking at high altitudes as by this means the weight of air taken in remains more constant. The inlet D maybe gauze covered to exclude dust, and has a throttle D to shut off the air entering, partially or wholly. There are separate air inlets D which are not exposed to the forced draft and by using these instead of the inlet D the air may be supplied at atmospheric pressure,-and obviously by opening both inlets air under slight pressure may be used so that simple means may be provided for obtaining air at approximately the correct weight to suit the altitude at which'the engine is operating.

Any suitable arrangement of bafiles may be employed to cause the air to pass along the whole length of the crank case, and doors mlay be fitted to render the carbureters accessi le.

Preferably the inlet D or inlets are at the lowest possible points and oil or fuel drop? ping from the engine may drop out through v these apertures and the actual apertures may "be fitted with gauzes which exclude dust and of air, through the bustion engine having posed to a suction air forced into-the casing passes out idly andthere is consequently a more rapid 'flow casing than would occur if all the air entered the carbureters.

at I claim to secure by Letters Patent is 1. In combination with an internal coma-crank case at the lower part thereof, a carbureter, a casing inclosing the crankcase and the carbureter,

' said casing depending "below the crank casing and having an air inlet dinally and forwardly to receive air as the.

' zontally and forwardly to receive air as the.

directed longituengine moves forward, substantially as de scribed;

2. In combination with an internal com-Q bustion engine having a crank case at the lower part thereof, a carbureter, a casing inclosing the crank case and the carbureter, said casing depending below the crank casg and havlllg an air inlet directed; horiengme moves forward, said casing at a point above the air-inlet havlng'an opening to the atmosphere withadevice for regulating the size thereof, substantlally as described.

a pair of cylinder arranged in a plane cen- 3. In combination with blocks, a crank case p trally between them and common thereto, a casing having side Walls spaced apart from the "crank casing and inclosing the same and depending below the crankcase with a forefiect so that some of the as my invention-and desire internal combustion engine, comprising a crank chamber, ing inclosing them and having an opening through which air is positively forcedvand means for adjusting the pressure of said air, consisting of openingsthrough' the casing to the atmosphere and a device for varying the size of said opening.

5. An internal combustion engine, comprising a crank chamber, a casing surrounding said crank chamber having an opening through which air is positively forced, carbureters, casings inclosing and communicating with said. first mentioned casing'and means for adjusting the pressure of the air, consisting of openings through the casing to the atmosphere and a device for vary-ingthe size of said opening. In testimony whereof I'hm'esigned my name to this specification two subscribing witnesses. I :LOUIS COATALEN. ."Witnesses: Y v i J oHN" MARSTON, W. SEIFL' a carbureter, a ca'ssaid carbureters I in the presence of

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