| 摘要 |
Apparatus for use in cooling a marine engine is disclosed which includes a cylindrically shaped impeller having a plurality of vanes attached thereto, a housing with a main chamber in which the impeller is located, the impeller being driven by a drive shaft of the engine. The housing has a second chamber located between the main chamber and an outer end wall through which water is pumped to cool the separating wall between the chambers, which may be heated by the rotating impeller during operation.
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