Marine Heat Exchangers
There are three methods employed for water-cooled marine petrol and diesel engines they are Direct cooling, Heat exchanger cooling and Keel cooling.
- Direct cooling of the cylinders and heads by sea water is unsatisfactory, because the engine – which was probably originally designed for radiator cooling – will run too cold and the sea water will eventually ruin the cylinder block and heads.
- Heat exchanger cooling is the most common method, the sea water being isolated in components which can be designed to withstand its corrosive affect. The closed fresh-water circuit can be thermostatically controlled so that the engine operates at its designed temperature.
- Keel cooling is suitable for small boats operating in shallow weedy water, but the need for pipework external to the hull is a severe limitation.
Bowman header tank heat exchangers prevent aeration of the engine water circuit.
Bowman gearbox oil and engine oil coolers are used on the suction side of the sea water pump.
Bowman heat exchangers and exhaust manifolds are used on the discharge side of the engine.
All Bowman Heat Exchangers use high-quality products incorporating both the best materials and the latest technical features that have become world known for building a quality and reliable product.
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