Supercharger cooling structure for small watercraft

Details Supercharger cooling structure for small watercraft Supercharger cooling structure for small watercraft

F - Mech Eng,Light,Heat,Weapons

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F01P 3/12 (2006.01) B60K 11/02 (2006.01) B63B 35/73 (2006.01) F01M 1/02 (2006.01) F01M 5/00 (2006.01) F01P 3/20 (2006.01) F02B 29/04 (2006.01)

Patent

CA 2390825

To provide a supercharger cooling structure for a small watercraft which can sufficiently cool the supercharger. In a small watercraft in which an engine with a supercharger is incorporated, cooling water from a jet pump is supplied to the supercharger through a different supercharger cooling water passage independent of any other cooling water passage. The cooling water from the supercharger cooling water passage is first supplied to the supercharger to cool the supercharger and then supplied to an exhaust system provided on the downstream with respect to the supercharger in an exhaust system for the engine, whereafter it is discharged to the outside of the watercraft together with exhaust gas. Oil is supplied to the supercharger, and the oil supplied is used for lubrication of a bearing portion of the supercharger and is supplied to an oil jacket formed in a bearing casing to cool the bearing casing.

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