Patent ID: 9403588
Filing Date: 2016-08-02
CPC Classification: B63H

Claim Text:
1. A system for cooling a marine engine that is operated in a body of water, the system comprising: an open loop cooling circuit for cooling the marine engine, wherein the open loop cooling circuit is configured to convey cooling water from the body of water to the marine engine so that heat is exchanged between the cooling water and the marine engine; a pump that is configured to pump the cooling water from upstream to downstream through the open loop cooling circuit; wherein the open loop cooling circuit comprises an upstream inlet that is configured to receive the cooling water from the body of water and a downstream outlet that is configured to discharge the cooling water back to the body of water after the heat has been exchanged between the cooling water and the marine engine; and a heat exchanger that is configured to cause an exchange of heat between the cooling water located upstream of the marine engine and the cooling water located downstream of the marine engine to thereby warm the cooling water located upstream of the marine engine prior to cooling the marine engine.