Gamvdout Gasoline Engine Model - Small Fuel Engine Engine - Four-stroke Internal Combustion Engine Model - Physics Experiment Equipment -Teaching Equipment,

Size(L x W x H): 30x 17 x 2.5 mm/ 11.8x 6.6 x 0.9 inch Gasoline engine model: Demonstrate the basic structure and working principle of a four-stroke single-cylinder gasoline engine Great educational toy, classroom or laboratory experimental teaching aids, cultivate children'sinterest in physics, more intuitive and easy to understand Rotating the flywheel drives the gear cam assembly to rotate. The cam of the assembly will raise and lower the tappet during the rotation, and open and close the valve through the lever. The instrument is equipped with a light controller. When the gears and cams on the assembly are in different positions, the indicator bulb that represents the spark plug can be illuminated or extinguished.