Patent ID: 7182658
Filing Date: 2007-02-27
Classification: B63H,F02B,F16H

Abstract:
1. An outboard motor for a watercraft, the outboard motor comprising a casing configured to be mounted on a hull of the watercraft, a propeller shaft supported by a lower end portion of the casing, an internal combustion engine supported by the casing, a power transmitting shaft extending generally vertically through the casing, a top end of the power transmitting shaft being coupled to the engine, a drive gear being coupled to a lower end of the power transmitting shaft, a driven gear being coupled to the propeller shaft and configured to engage the drive gear, an oil bath configured to hold lubricant that soaks the drive gear and driven gear, an oil pump and a suction passage through which the oil bath communicates with the oil pump, an opening of the suction passage being positioned below the drive gear such that lubricant in the oil bath flows through the opening into the suction passage, and a return passage through which a discharge portion of the oil pump communicates with the oil bath.