Oil cooler for watercraft

A small watercraft comprising a water propulsion device powered by an internal combustion engine, the engine mounted in an engine compartment of a hull, a lubrication system that supplies lubricant to the engine, the lubrication system including a pump device that circulates lubricant between the engine and a lubrication cooler, the lubrication cooler located within a water jacket.

A small watercraft comprising a water propulsion device powered by an internal combustion engine, the engine mounted in an engine compartment of a hull, the hull comprising an upper portion and a lower portion, a lubrication system that supplies lubricant to the engine, the lubrication system including a pump device that circulates lubricant between the engine and a lubrication cooler, the lubrication cooler located in the upper portion in a position exposing the lubrication cooler to a fluid flow.

A small watercraft comprising a water propulsion device powered by an internal combustion engine, the engine mounted in an engine compartment of a hull, a lubrication system that supplies lubricant to the engine, the lubrication system including a pump device that circulates lubricant between the engine and a lubrication cooler, the lubrication cooler being integrated with the hull so that at least part of the lubrication cooler communicates with ambient water, the lubrication cooler positioned in a tunnel that communicates with the water propulsion device.

A small watercraft comprising a water propulsion device powered by an internal combustion engine, the engine mounted in an engine compartment of a hull, a lubrication system that supplies lubricant to the engine, the lubrication system including a pump device that circulates lubrication between the engine and a lubrication cooler, and a fluid delivery device for delivering a cooling fluid next to at least a portion of the lubrication cooler, the fluid delivery device having an air intake chamber in the hull arranged to channel ambient air over the lubrication cooler.

A small watercraft comprising a water propulsion device powered by an internal combustion engine, the engine mounted in an engine compartment of a hull, a lubrication system that supplies lubricant to the engine, the lubrication system including a pump device that circulates lubrication between the engine and a lubrication cooler, and a fluid delivery device for delivering a cooling fluid next to at least a portion of the lubrication cooler, the fluid delivery device having a water jacket located above the propulsion device and arranged to contact at least a portion of the lubrication cooler, the water jacket communicating with the propulsion unit.

A small watercraft comprising a hull with an engine compartment, an internal combustion engine mounted within the engine compartment and including a crankcase, a propulsion device powered by the internal combustion engine, a lubrication system including a pump and a reservoir, a lubrication system communicating with the engine so as to supply lubricant to the engine with the pump circulating lubricant between the engine and the reservoir, the reservoir being disposed apart from the crankcase of the engine, and means for cooling lubricant within the lubrication system.