Patent ID: 6682380
Filing Date: 2004-01-27
Classification: B63H,F01P,F02B

Abstract:
A marine engine, comprising:an engine block comprising a first cylinder bank and a second cylinder bank, said first and second cylinder banks in a V-configuration, a valley between said cylinder banks, each cylinder bank comprising at least one cylinder bore, respective exhaust ducts in flow communication with each said cylinder bore; a first cylinder bore water jacket formed in said engine block, in flow communication with said valley, and adjacent to at least a portion of said block forming each said exhaust duct in said first cylinder bank; a second cylinder bore water jacket formed in said engine block, in flow communication with said valley, and adjacent to at least a portion of said block forming each said exhaust duct in said second cylinder bank; a first cylinder head water jacket in flow communication with said first cylinder bore water jacket; a second cylinder head water jacket in flow communication with said second cylinder bore water jacket; a water pump, said pump configured to supply a coolant to said valley such that coolant enters said first cylinder bore water jacket and said second cylinder bore water jacket from said valley; a first thermostat downstream relative to the first cylinder bore water jacket and in parallel with at least the first cylinder head water jacket and a second thermostat downstream relative to the second cylinder bore water jacket and in parallel with at least the second cylinder head water jacket, the first and second thermostats configured to regulate the flow of coolant; and a third thermostat in fluid communication with the first and second cylinder head water jackets and configured to regulate flow theretrough.