Patent ID: 9562501
Date: 2017-02-07
CPC Classifications: F01M,F02M

Claim:
1. A blow-by gas processing circuit for an internal combustion engine, in which a carburetor having an intake passageway extending laterally is to be connected to one side surface of an internal combustion engine with an insulator member interposed between the carburetor and the one side surface of the engine, and an air cleaner placed above the carburetor is connected to an upstream end of the carburetor, wherein the air cleaner includes one side surface that is formed on a lateral portion of the air cleaner exposed to an outside and extends in an up-and-down direction, the blow-by gas processing circuit comprises: wherein substantial portions of the blow-by gas lead-out pipe, the upper pipe, the descending pipe and the branch pipe are aligned in one direction orthogonal to a running direction of the intake passageway.