STIRLING ENGINE LOW TEMPERATURE DIFFERENTIAL TYPE A demonstration of a ‘hot air’ engine using a low temperature heat source outside of the engine. Model provided by the Institution of Mechanical Engineers Ambassador scheme

Low temperature differential type STIRLING ENGINE – CONSTRUCTION DETAILS. Flywheel Crank-shaft pins are at 90° to each other The Area of the large cylinder is 62 times the area of the Power Piston Crank-shaft runs in ball bearings inside the pillar to keep friction low. The Power Piston is made of graphite and is a very close fit in a glass cylinder to keep air leakage and friction small. Displacer piston rod runs in a very close fitting small bearing to minimise friction and air leakage. The Power cylinder is connected to the large cylinder by a big hole. Top plate is kept cool Displacer Piston fits inside the large cylinder. There is a big gap between the cylinder walls and the Displacer to allow the air in the large cylinder to pass easily between top and bottom. Air is trapped inside the body of the engine Bottom plate is gently warmed to drive the engine

Animation Click here to run an animation of the LTD Sterling Engine. Esc. To return.