Made of cast-metal. Model showing longitudinal section of cylinder covered with a transparent plate, clearly showing the piston and position of valves. Complete with working parts like piston, slide valve, crank, flywheel, connecting rods etc., and demonstrates the conversion of linear motion of piston rod to the rotatory motion of the crank shaft. Can be made to operate using a simple air pump or even by blowing with mouth.

This model represents internal structure and operating principles of a simple piston-ported, air-cooled two-stroke engine. All parts in cast alloy metal. Ignition simulated by means of a miniature bulb. Carburetor attachment and fuel supply also sectioned. A pair of 4mm socket terminal for electrical supply. Mounted on a powder coated metal base with printed diagram.

This model Represents a typical air cooled, side-valve, four stroke petrol engine with the operation of the valves clearly evident . Cam operated inlet and exhaust valves being driven by a gear train from rear of the main crank. As with the two-stroke model, spark plug simulated through a small lamp to indicate the firing point. A pair of 4mm socket terminal for electrical supply. Cross-section of carburetor is shown. Mounted on a powder coated metal base with printed diagram.

In this sectional view of two-stroke diesel engine is demonstrated. Made of Al-ferrous metal alloy. The engine is shown in half section as above models. The working parts moves in correct path in relationship to another when hand crank is rotated. Mounted on a powder coated metal base with printed diagram.

A model of four-stroke water-cooled diesel engine. Clearly demonstrates the functioning of all critical components such as fuel injection system , camshaft, rocker arms, tappets etc. Cam operated inlet and exhaust valves being driven by a gear train from rear of the main crank. Ignition simulated by means of a miniature bulb. Mounted on a powder coated metal base with printed diagram.