US1252045A - Internal-combustion engine. - Google Patents

Description

WITNESSES M. SIEVEKING Patented Jan. 1, 1918.

2 SHEETS-SHEET lf j M. maven-me. INTERNAL COMBUSTION. ENGINE. APPLICATION mm 116.14. 1917.

135,045., Patented Jau1 .1,1918.

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MABTINUS SIEVEKING, OF LAKE MAHOPAC, NEW YORK.

| I INTERNAL-COMBUSTION ENGINE.

To all whom it may concern:

Be it known that I, MARrINUs SIEVEKING, a citizen of the Netherlands, and a resident of Lake Mahopac, in the county of Putnam and State of New York, have invented a new and Improved lnternal combustion Engine,

of which the following is a full, clear, and

cylinders are provided in lieu of inlet valves.'

A still further object of the invention is to 4 provide a structurehaving a divided cylinder having a plurality of explosion chambers with a piston in each chamber so that in at least some of the chambers perfectly pure combustible matter may be positioned upon each compression so as to positively insure explosion on each revolution.

In the accompanying drawing:

Figure 1 is a longitudinal vertical section through an engine disclosing an embodiment of the invention.

Fig. 2 is a top plan view of the engine in Fi 1.

i i 3 is a view similar a) Fig, 1 but disclosing a plurality of power cylinders.-

Referrin to the accompanying drawings by numera s, 1 indicates a casing in which the crank shaft 2 is mounted, said shaft being supported-by suitable bearings and can rylng a fly wheel 3. Arranged in the upper part of casing 1 are cylinders 4 and 5, cylinder 4 being preferably provided with a water jacket while a cooling jacket is not necessary for cylinder 5. Bolted or otherwise secured to cylinder 5, or supported in any desired manner is a carbureter 6 having a pipe T'communicating with the interior of cylinder at 8, thus producing an inlet for an explosive mixture. Connected with cylinder 5 and communicating with the interior thereof through the discharge port 9 is a pipe 10 which communicates with the interior of cylinder 4 through port 11. Cylinder 4: is divided by a partition member 12 so that two cylindrical chambers 13 and 14 may be rovided for the pistons 15 and 16. Cylin ers 13 and 14 merge into a central chamher 1? at the top whereby a single spark plug 18 may be used for igniting the gas in Specification of Letters Patent.

Patented Jan. It, 1918.

Application filed August 14,1917. Serial No. 186,164.

both the chambers 13 and 14.- An outlet 19 is provided near the bottom of the chamber 1% and substantially in the same horizontal plane as the inlet 11. By this construction and arrangement whenever the fresh gas or explosive mixtures enter the cylinder 4: chamber 13 is scavenged first and chamber 14 is scavenged last. It will also be noted that there is no remaining burnt gas in chamber 13 and chamber 14 will have but little and that little adjacent the piston 16, whereby the spark plug 18' will be surrounded by perfectly good gas and thereby will produce an explosion at each revolution of the engine. Two pistons and two chambers have been shown in the cylinder 4 but it will be evident that a greater number may be used if desired-without departing from the spirit of the invention. A bifurcated or yoked connecting rod 20 connects the pistons with the crank shaft 2 and the crank 21, while a straight connecting rod 22 connects thepiston 23 in chamber 5 to the shaft 2 through crank 24:. WVhen the parts are in the position shownin Fig. 1 the chambers 13 and 14 have'just been scavenged and filled with an explosive mixture, and as the pistons 15 and 16 move upwardly ports 11 and 19 are closed and the explosive mixture is compressed. Simultaneously with the upward movement of the pistons 15 and 16, piston 23 will move downwardly and thereby provide a rarefaction in the upper part of the chamber and also in the pipe 10, so that as soon as the piston uncovers the port 8 the rarefaction or vacuum produced in the chamber will draw in a given quantity of combustible mixture through the carburetor 6 which will properly mix and be later compressed as the piston 23 again moves upwardly as pistons 15 and 16 move clownwardly on the explosion stroke. By the timethe pistons 15 and 16 begin to uncover ports 11 and 19 the power ofthe explosion has been absorbed and the compression in cylinder 5 has reached such a. point as to quickly force the gas or explosive mixture into the cylinder 4 where it is compressed and the process is repeated during the continued operation of the engine. It will be noted that the pistons 15 and 16 close the inlet and outlet ports during the compression of the gas in the chambers 13 and 14 and cylinder 4. The piston 23 may be made sufficiently long to continue to cover port 8 during its upstroke though preferably it is made somewhat shorter as shown in Fig. 1.

In Fig. 3 is seena slightly modified form of the invention in which the same principle is used, but the casing 25 is made sutiiciently large to accommodate a shaft 26 designed to be driven by two power cylinders 4- instead of one as shown in Fig. 1, also there is provided two compression cylinders 5' with the carbureter 6 arranged thcrebetween and dis charging into oppositely extending pipes 27 and 28. By this arrangement one compression cylinder 5 will be drawing in gas while the opposite one is compressing and consequently one cylinder 4 will be fired while the other is compressing. It is evident that any number of the units comprising cylinders 4c and 5 and associate parts could be associated together and connected to one shaft. be seen inlet valves and outlet valves and all other valves are eliminated, unless the piston 23 and associate parts could be termed valves as well as the pistons 15 and-16, as the last mentioned pistons close the ports during a certain part of the cycle of operation. It will also be noted that the only moving parts In all forms (if the invention it will are the pistons, the crank shaft and connecting parts.

What I claim is:

In an internal combustion engine of the character described, a power cylinder divided into a plurality of chambers, said cylinder having an inlet and an outlet port at one end, a piston for each of said chambers, said pistons closing said ports when compressing and during most of the ower stroke, a compression cylinder havlng a closed end, a carbureter connected Witlithe compression cylinder at the end opposite the closed end, means for connecting the closed end of said compression cylinder With said inlet port, and means for connecting the pis ton of the compression cylinder and thepistons of the said chambers with the same crank shaft, said )istons being set one hundred and eighty degrees apart whereby the piston in the compression chamber will cause a rarefaction in the closed end of the cylinder until the inlet to the carbureter has been uncovered and will then compress the charge from the carburcter until the completion of the power stroke of the pistons in the power cylinder M. SIEVEKlNG.

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