CONNECTION STRUCTURE OF BLOW-BY GAS HOSE

A connection structure 1 of blowby gas hose according to the present invention is intended to connect a cylinder head cover 2 and an intake system member 3 of an automobile engine. The cylinder head cover has, on its upper surface part, a bulging section 7 provided to bulge upward and a blowby gas outflow section 8 provided to protrude upward. The intake system member is mounted on the cylinder head cover so as to cover the blowby gas outflow section from above. The blowby gas outflow section is provided, on its upper end side, with a connecting section 17 to which the lower end part of a blowby gas hose 4 extending from the intake system member is connected. The connecting section is arranged above the upper surface of the bulging section.