Patent ID: 6901918

Claim:
An engine carburetor freeze-proof apparatus comprising an engine having a cylinder, a cylinder head and a crankshaft, wherein blow-by is generated from the engine to release internal pressure of the engine, and a carburetor into which fresh air is introduced by an air filter, the fresh air is mixed with fuel to produce air-fuel mixture, the mixture is imported into the engine, a connecting pipe is provided to the engine and coupled to a heating joint from the carburetor, an output joint is provided to the carburetor, an output pipe is coupled to the output joint, a heating passage is provided inside the carburetor, the blow-by entering into a heating passage in the carburetor via the heating joint, the blow-by is discharged from the carburetor via the output joint and the output pipe, and the blow-by discharged from the output pipe is reclaimed by the air filter.