US2032985A

US2032985A - Internal combustion engine

Info

Publication number: US2032985A
Application number: US696103A
Authority: US
Inventors: Paul William
Original assignee: Individual
Current assignee: Individual
Priority date: 1933-10-31
Filing date: 1933-10-31
Publication date: 1936-03-03
Anticipated expiration: 1953-03-03

Description

arch 3', 1936. w. HAUL 2,032,985

INTERNAL COMBUSTION ENGINE Filed Oct. 31, 1953 5 Sheets-Sheet l Inventor flllorney March 3, 1936. w. HAUL INTERNAL COMBUSTION ENGINE Filed Oct. 51, 1935 5 Sheets-Sheet 2 V Inventor wzzzz'am Haul v fllomey March 3, 1936. w AUL 2,032,985

INTERNAL COMBUSTION ENGINE Filed Oct. 31, 1933 5 Sheets-Sheet 3 gaooo I nvenl or March 3, 1936.

W. HAUL INTERNAL COMBUSTION ENGINE Filed Oct. 31, 1933 5 Sheets$heet 4 Inventor VViZZL'arh, Haul flllorney March 3, 1936. w HAUL INTERNAL COMBUSTION ENGINE Filed Oct. 31, 1953 5 Sheets-Sheet 5 Invenlor flllomey William Haul Patented Mar. 3, 1936 UNITED STTES PATENT OFFICE 1 Claim.

This invention appertains to new and useful improvements in internal combustion engines, and more particularly to an engine of the two cycle type.

The principal object of the present invention is to provide an internal combustion engine in which the valves are simplified and wherein the explosion chamber is scavenged thoroughly and quickly.

During the course of the following specification and claim, various important objects and advantages of the invention will become apparent to the reader.

In the drawings:-

Figure 1 represents a side elevational view of the engine.

Figure 2 represents a top plan view of the engine.

Figure 3 represents a vertical sectional view through the engine.

Figure 4 represents a horizontal sectional view taken substantially on line 4-4 of Figure 3.

Figure 5 represents a sectional view taken substantially on line 55 of Figure 3.

Figure 6 represents a side elevational view of the combined piston and valve.

Figure 7 represents a top plan View of the cylinder and valve combination.

Figure 8 represents a top plan view of the engine with the head removed.

Figure 9 represents a sectional view taken substantially on line 99 of Figure 3.

Figure 10 represents a horizontal sectional View taken substantially on line IIlIIJ of Figure 3.

Referring to the drawings wherein numerals designate like parts, it can be seen that numeral 5 represents a two-cylinder block having a water jacket 6. Below this is located a crank case I through which the crank shaft 8 extends. Numeral 9 represents the head which is hollow to accommodate water of the cooling system, and extending vertically through the head 9 are the barrels II] to accommodate the valve sleeves I I on the pistons I2 which operate in the cylinders I3. Each of the tubular valves II extends upwardly from the central portion of the piston head and is partitioned off just above the piston I2, as at I3, so that the fuel supply is entirely out 01f when the partition is in the posi-, tion as shown in Figure 3 above the engine head. The fuel is compressed in the valve II on the up stroke of the piston and when the piston is at the lower portion of its power stroke, fuel is admitted to the valve II. The valve sleeve II is provided with perforations I4 in the side thereof just above the partition I3, and with an inlet port Il adjacent its upper end, while depending into the valve sleeve I I is the tubular core I5 which is flanged at its upper end and secured by bolts I6 to the upper portion of the head 9. Be- 5 tween the upper end of the core I5 and the upper end of the valve sleeve II is a lubricant pocket I'I.

Numeral I8 represents a fuel duct leading through the head for each of the valves II and 10 each of these fuel ducts opens through the inner face of the corresponding barrel I0. Within each of the explosion chambers I9 are the points of a spark plug 20. The piston I2 is hollow and has oil drain openings 2I therein at its lower portion, as shown in Figure 3. The piston I2 is provided with a small cylindrical skirt 22 which operates within the tubular guide 23 depending from the cylinder block 5. The space between the cylinder bore and the apron 22 defines an air chamber 24. Each of the cylinders has an air intake line 25 with an outwardly closing check valve 26 therein. Each of these air lines 25 opens into the corresponding air chamber 24 below the piston and by means of these 25 air lines 26, a duct 21 extends upwardly to communicate with the cylinder at a point adjacent the upper end of the cylinder and a point which is never below the lower portion of the piston I2.

As is clearly shown in Figure 3, these ducts 21 are connected by a pipe 28.

The pistons I2 are connected by a connecting rod 29 to the crank 30 of the shaft 8. Numeral 3I denotes an exhaust opening for each of the cylinders and is substantially on the same horizontal plane as the upper openings of the ducts 21.

In the operation of the engine, it can be seen in Figure 3 that the piston I2 is starting downwardly on its explosion stroke. As the piston moves downwardly, air is being compressed in the chamber 24 and it will be noted that this air cannot escape due to the fact that the duct 21 is closed by the piston I2 and the air inlet 25 is closed by the check valve 26. When the piston moves to its lowermost position, the upper end of the duct 21 is exposed so that the compressed air sweeps across the explosion chamber and scavenges the cylinder by way of the exhaust port 3I. Immediately subsequent to this, the port II in registering with the inlet port I8 will permit fuel to pass downwardly through the sleeve II by way of the opening I4 to the explosion chamber, and as the piston moves upwardly, the fuel inlet will be closed and the gas caught in the explosion chamber will be compressed by the uprising of the piston. At the same time, the piston I2 is creating a suction in the chamber 24 which sucks air through the check valve 26, and when the compressed fuel is ignited, the same operation repeats itself.

While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having described the invention, what is claimed as new is In an internal combustion engine, a cylinder, a piston operative in the cylinder, a cylinder head, said cylinder head provided with a barrel extending vertically thereon, a valve sleeve extending upwardly from the piston and into the barrel, said valve sleeve having a partition therein extending transversely thereof and openings in the sleeve above the partition, a fuel inlet in the said head communicating with said barrel, and a closure secured to the said barrel and provided with a tubular member depending therefrom protruding into the upper portion of the valve sleeve, said valve sleeve being provided with a fuel. inlet port in the upper end portion thereof registrable with the fuel inlet in the head when the piston reaches its lowermost position, said depending member and barrel defining a snug guide for the valve sleeve.

WILLIAM HAUL.