Abstract: To provide a corrosion-resisting and wear resisting alloy including cobalt, nickel or iron as a base used for a sliding part or a valve seat for a machine, and restraining erosion and corrosion caused by eutectic carbide constituting the alloy in an atmosphere with dissolved oxygen.

Abstract: To provide a corrosion-resisting and wear resisting alloy including cobalt, nickel or iron as a base used for a sliding part or a valve seat for a machine, and restraining erosion and corrosion caused by eutectic carbide constituting the alloy in an atmosphere with dissolved oxygen.

Abstract: In a blow-bye gas return device of an internal combustion engine having a blow-bye gas return passage for conducting blow-bye gas from the engine into an integrally combined structure of a fuel injection body and a throttle body, the blow-bye gas return passage has a blow-bye gas discharge orifice which opens toward the upstream side of an air intake passage formed within the injection body around a fuel injector. The discharge orifice is located upstream of the injection port of the injector and on the opposite side of an air flow sensor, whereby the blow-bye gas discharge orifice is free from the injection fuel from the injection port and the air flow sensor is free from oil mist discharged from the blow-bye gas discharge orifice. Further, the blow-bye gas discharge orifice is located at a position where the dynamic pressure is low, whereby the flow resistance is low.