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1. (WO2019009843) AN ENGINE CYCLE
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1. An engine cycle (1), wherein the exhaust gas passing from the combustion chamber to the side of the crank chamber is prevented from being frozen in the area in which it is mixed with fresh air, in cases when the internal combustion engines are cold and at low speeds thereof, basically comprising: at least one engine (2) converting chemical energy to mechanical energy, at least one exhaust line (3) formed for transferring the exhaust gas generated as a result of combustion inside the engine (2),

- at least one turbine (4) which is disposed in the exhaust line (3) and operates in synchronization with the compressor (6), and thus enables the compressor (6) to be rotated,

at least one EGR line (5) formed for redelivering a preferred amount of the exhaust gas from the exhaust line (3) to the engine (2),

- at least one suction line (7) through which the air pressurized by the compressor (6) is delivered to the engine (2),

at least one crankcase gas line (8) whereby the gases escaping through the area between the piston and the liners in the engine (2) and not advancing towards the exhaust line (3) are directed from the inside of the crank chamber,

- at least one fresh air line (9) provided for receiving fresh air from the outer environment, and

at least one mixture area (10) in which the crankcase gas line (8) and the fresh air line (9) are combined and the exhaust gas, the crankcase gas and the fresh air are mixed, and characterized by:

- a coating (11) which is formed in the walls (8.2) facing the crankcase gas line opening (8.1) of the mixture area (10) disposed at the section where the crankcase gas line (8) and the suction line (7) are combined and which comprises a first layer (11.1) to which 40 to 80 microns of anodic oxidation is applied, a second layer (11.2) to which 30 to 60 microns of PTFE (polytetrafluoroethylene) or fluoro silicone is applied, and a third layer (11.3) to which 20 to 30 microns of PTFE (polytetrafluoroethylene) or fluoro silicone is applied.

An engine cycle (1) as in Claim 1, characterized by a coating (11) whereby the friction coefficient on the walls (8.2) disposed at the crankcase gas line opening (8.1) is reduced down to 0.05 to 0.2 microns by the formation of the first layer (11.1), the second layer (11.2) and the third layer (11.3) individually.