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English: A schematic of a semi-closed internal combustion engine cooling system for ships. 1. Valve; 2. Pump; 3. Filter; 4. Cooling pipe; filled with chemical cooling substance; fully closed; cooled itself by seawater; 5. Engine IC; 6. Clutch; 7. Outlet pipe (works as water seal) Note: As visible in the drawing, coolant water and exhaust fumes ...
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English: A schematic of an open internal combustion engine cooling system for ships. 1. Valve; 2. Filter; 3. Pump; 4. IC engine; 5. Clutch; 6. Outlet pipe (works as water seal) Note: As visible in the drawing, coolant water and exhaust fumes are mixed.
A keel cooler is a type of internal combustion engine cooling system used in marine engines.. In this system, engine coolant is circulated through a system of tubing outside the vessel's hull, using the lower temperature of seawater to reduce the coolant temperature via heat exchange before it is recirculated through the engine. [1]
Gray Marine engine preserved at Arromanches-les-Bains, Normandy Esmeralda II, 1947, first power boat through the Grand Canyon. Gray Marine Motor Company was a U.S. manufacturer of marine engines between 1910 and 1967. These ranged from one to six cylinders in both gas and later diesel layouts, which were used in pleasure boats, work boats, and ...
Heat generated an engine's cylinders is transferred to a jacket water cooling system through the cylinder wall. In addition to cooling the cylinder walls, jacket water is often found as an insulator between the exhaust header and the engine room.
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The temperature of the cooling air may range from well below freezing to 50 °C. Further, while engines in long-haul boat or rail service may operate at a steady load, road vehicles often see widely varying and quickly varying load. Thus, the cooling system is designed to vary cooling so the engine is neither too hot nor too cold.