Oil containment means for outboard motor
AssigneeBrunswick Corporation
InventorsWilliam Prasse, Wayne Jaszewski, George E. Phillips, Jeffrey P. Ruhnke
Life of this patent
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Abstract
In an outboard motor having a four cycle power head, a drive shaft housing and an adapter plate therebetween, an oil sump in the drive shaft housing and a lubricating oil system to supply oil to the bearings of the power head, a baffle system including the adapter plate and a second planar baffle between the adapter plate and the drive shaft housing. Oil passages through the adapter plate and the second baffle are positioned on opposite sides of the power head from each other and are longitudinally separated from each other so that the oil will not flow from the oil sump back over the baffles and into the power head when the motor is horizontal.
Claims13
In an outboard motor having a power head, a drive shaft housing supporting a drive shaft, propeller shaft and propeller, an oil tank in the drive shaft housing and a pressurized oil system for the power head,
- means for substantially preventing oil in the tank from flowing into the power head when the outboard motor is placed in a horizontal position comprising,
- a first oil baffle positioned adjacent to the bottom of the power head, an oil passage through the first baffle located on one side and generally to one of the front and back of the motor defined by a lateral vertical plane bisecting the power head, and
- a second oil baffle positioned between the first oil baffle and the drive shaft housing, an oil passage through the second oil baffle located on the other side and generally to the other of the front and back of the motor defined by the lateral vertical plane bisecting the power head.
In an outboard motor comprised of a four cycle piston driven internal combustion engine power head, a drive shaft housing and adapter means for joining the power head and the drive shaft housing, an oil tank located below the adapter means, and a lubricating oil system for the engine wherein oil supplied to the moving parts of the engine drains by gravity from the engine through the adapter means to the oil tank,
- an improved means for preventing oil in the oil tank from flowing from the oil tank back into the engine when the outboard motor is placed in a horizontal position comprising:
- a first oil passage through the adapter means;
- an oil baffle positioned between the adapter means and the drive shaft housing;
- a second oil passage through the oil baffle,
- said first and second oil passages being positioned on opposite sides of the motor relative to one another, and one of the first and second oil passages being positioned substantially forward of the other relative to a fore and aft axis of the adapter means.
Dependencies are inferred from the claim text.