The steam engine is supplied with steam from a steam header at a reduced pressure via an overspeed trip solenoid valve and a displacement lubricator from which oil is displaced by droplets of condensed steam into the steam supply to lubricate the engine. Steam Engine Steam Bench consists of a sturdy framework and panels of all steel construction, fitted with a student work surface, interconnecting hack panel and adjustable feet. Engine inlet and outlet steam pressures are indicated on 0-16 bar and -1 to 3 bar Bourdon tube pressure gauges respectively. A control cubicle surmounted by resistive load elements within a separate ventilated enclosure, contains electrical control circuits and is fitted with the control switches and the indicating instruments for engine speed, dynamometer output current and voltage and analogue temperatures which can be selected by an associated multi-position switch. The steam bench comprises a robust single cylinder, double acting reciprocating steam engine driving a dynamometer which enables a calculable, variable resistive load to be easily imposed on the engine. Exhaust steam is cooled by a water cooled, coiled tube type condenser.
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