SU39474A1 - Mode of operation of internal combustion engine - Google Patents

Description

The invention relates to methods for operating internal combustion engines with two combustion chambers separated by valves from the cylinder and operating alternately.

With the proposed method of operating the engine, in order to obtain a degree of expansion greater than the degree of compression, suction and compression are performed simultaneously in both chambers, and the ignition and expansion occur alternately in each chamber, the other chamber being separated at this moment by a valve from the working space. cylinder.

The drawing shows a diagram of an internal combustion engine.

The internal combustion engine is equipped with two combustion chambers 9 and 70 separated by or the working space of cylinder 2 by valves 3 v 4. Valves 3 and 4 can be of different designs and shown in the diagram in the form of taps. In the upper dead position of the piston / between it and the cylinder head 2 there should be a minimum volume. The compression chamber 9, separated by valve 3 from the working space of cylinder 2, has a suction valve 5 and exhaust 6. (Also, chamber JO, separated from the cylinder by valve 4, has a suction valve 7 and exhaust S). Both chambers have candles or fuel nozzles, not shown in the drawing.

The engine cycle is as follows. During a first-stroke intake, the mixture is sucked into cylinder 2 through suction valves 5 and 7, chambers and / (and valves 3 and 4; suction valves 5 and / can also be directly in cylinder head 2. During the second stroke-compression cycle, valves 5 and 7 are closed, and 3 and 4 remain open, and the mixture is compressed in both chambers 9 and 10. At the end of the compression stroke, one chamber (eg / () will be separated from the working space by closing valve 4 and in the other 9 , the mixture will be ignited. At the third stroke-working stroke-the working space of the cylinder informs with only chamber 9 through valve 3, and only half of the compressed mixture is used. The initial volume of the mixture during expansion will be two times less than the volume of the mixture at the end of compression, due to which the expansion ratio will be greater than the compression ratio. are removed through the open valve J to chamber 9 and exhaust valve 6. At the end of the ejection stroke, valve 5 is closed, and in the chamber / O, the mixture is ignited with the necessary advance. At the fifth stroke-second stroke, the valve is open and the second part of the sucked mixture is used. In the sixth exhaust stroke, the combustion products are removed through valves 3,4, chambers 9 and JO and exhaust valves 6 and 6 ..

The subject matter of the invention.

The method of operation of the engine internal torrents with two separable valves from the cylinder of the combustion chambers, characterized in that the suction and compression are performed in both chambers 9

and 10 at the same time, ignition and expansion occur alternately in each chamber separately with another chamber separated by a valve from the working space of the cylinder for this period in order to obtain a degree of expansion greater than the degree of compression.