SU35489A1 - Internal combustion engine - Google Patents

Description

The invention relates to internal combustion engines with an auxiliary piston, mounted on the working piston and moved away from the latter by a spring.

In the proposed engine, both the working piston and the auxiliary piston are each provided with a valve in their bottoms, which valves are designed respectively for air intake and exhaust from the inter-piston space. The bottom of the auxiliary piston carries a nozzle mounted on it, into which a nozzle with a nozzle enters, provided with air holes at its base for entering the air.

In the schematic drawing of FIG. 1 depicts a vertical section of the engine at the beginning of the course; fng 2 is the same during the course.

The working piston 7 in the cylinder 1 of the engine is equipped with an auxiliary piston 6, moved away from the first by means of a spring 10 placed between them. in which, at the extreme position of the piston, the nozzle 4 enters with the nozzle 3, located in the combustion chamber

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and provided with air holes at its base.

When the working piston 7 moves upwards, the auxiliary piston 6 is pushed back by the spring 10, due to which air is compressed in the inter-piston space through the valve 9, which is compressed when the working piston approaches the extreme upper position. At the time the fuel is injected through the nozzle 3, both nozzles 4 and 5 are so close together that there is only a small gap between them. The fuel entering under pressure carries behind it a part of the air penetrating through the openings at the base of the nozzle 4 near the nozzle 3, and striking the heated walls of the nozzles ignites. The nozzles are preheated before starting work, and in the process of work they heat up, which ensures ignition of the fuel.

Under the pressure of the combustion products, after ignition of the fuel, the auxiliary piston 6 is lowered, as a result of which compressed air from the inter-piston space is exhausted through the valve 8 and, mixing with the fuel, accelerates the combustion process; however, both pistons with a compressed spring 10 (Fig. 2) move downwards. With the passage of the vskhlopnyh windows and a decrease in pressure, the spring 1c

moves the auxiliary piston 6, as a result of which air is sucked through the valve 9.

The auxiliary piston also serves to reduce the detonation of an explosion.

The subject invention.

Internal combustion engine with auxiliary piston mounted on

a working piston and a spring moved away from the latter, characterized in that the working piston is in each case provided with a valve 9 for intake air, and the auxiliary piston in its bottom is equipped with a valve 8 intended for release from the inner space of the compressed air and a nozzle 5, which includes a nozzle 4 with a nozzle-3, provided with air holes at its base.