What is a Stirling engine and how do they work?
Stirling engines convert thermal energy into mechanical energy. These Stirling engines take a temperature difference between the top and bottom plate and turn it into rotational energy, rotating the flywheel. Simply placing a cup of warm coffee/tea underneath is enough for it to work.

These Stirling engines
These wonderfully made stirling engines are a joy to watch. They can run from the heat from your hand. They really get up to a speed when place on top of a cup of tea or coffee. Been made over a number of years and this shows with the performance. This version has highly poslished chrome like finish.

Features

• Heat insulated pillars with flush flat bottom finish for good surface contact with heat source
• Connecting rods are positively located using low friction PEEK and stainless steel screws
• All airtight seals are made with high strength precision screw threads and nitrile O rings
• Ultra low friction demagnetised and de-greased bearings, NO lubrication required
• CNC machined, giving crisp, clean and tidy edges all over
• Engine parts ultrasonically cleaned before hand assembly
• Precision engineered and hand built in England
• Machined to micron precision

Engine materials

• Stainless steel connecting rods and ball-race bearings
• Micron precision Borosilicate glass cylinder
• Micron precision Graphite power piston
• Light-weight aluminium main pillar, hub and spokes
• Brass chamber pillars and flywheel rim
• Brass gland and cylinder holder

Sizes

• Base plates - 92mm diameter
• Displacer - 70mm diameter, 8mm thick
• Flywheel - 82mm diameter, 4mm thick
• Power piston - 9.5mm diameter
• Overall height - 120mm

Note: Now also available in kit form.