Aerating device for internal combustion engine

Abstract

The present invention provides an air device of the overhead valve type internal combustion engine, the internal combustion engine is rolled with a cam chain between the crank and the cam shaft, and provided with a cam chain tensioner, the air device is provided in the internal combustion engine without driving belt wheel offset by the cam chain, and without maximizing the cylinder body. A push rod mounting supporting surface of the cam chain tensioner is formed on the external wall of the cylinder body, a recessing part of one part of the air device and a joint face of mounting the air device lid are formed on the side of the push rod mounting supporting surface of the cam chain tensioner located on the external wall of the cylinder body which is parallel to the supporting surface, the air device processes air-fluid separation to the blowby gas emitted from the inner of the internal combustion engine.

Description

Ventilation device for internal combustion engines technical field The invention relates to a ventilation device arranged on an internal combustion engine. Background technique In a four-cycle internal combustion engine, there are cases where the internal pressure of the crank chamber rises as the temperature of the engine rises, the internal pressure of the crank chamber rises when the piston descends, and a small amount of blow-by gas leaks from the gap between the piston and the cylinder. leakage into the crankcase. Therefore, it is necessary to provide a breather to discharge the blow-by gas to the outside. Since the fuel is sealed in the crank chamber and stirred violently, the fuel particles are scattered and filled the crank chamber. Therefore, in the process of discharging the blow-by gas to the outside, the exhaust gas first enters the breather chamber with an appropriate volume, through decompression and Reduce the flow rate to separate and recycle the fuel com...

AI Technical Summary

Problems solved by technology

Offsetting the cam chain in this way complicates the camshaft drive mechanism and enlarges the periphery of the cylinder block of the internal combustion engine.

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