Engine water-tighting devices

摘要

An air intake water-tighting device is provided for a marine outboard motor for closing the intake automatically to prevent the ingress of water in the event of a capsize of the craft to which the outboard motor is fitted. The device consists of a valve casing adapted to fit over the engine air intake, a ported sleeve fixed in the valve casing, a rotary ported barrel fitted to swivel inside the sleeve, and an air inlet trunk outside the valve and fixed to one end of the barrel which air inlet trunk is so weighted that it turns the barrel through approximately 180 DEG in the sleeve in the event of a capsize and thereby moves the ports in the sleeve and barrel angularly out of register.