Mini Metal Mechanical DIY Single-cylinder 4-stroke Double Overhead Valve Cam Push Rod Internal Combustion Engine Model Toy

Features:

Tribute to the classic: Tribute to the first four-stroke internal combustion engine in history, this internal combustion engine model adopts a single-cylinder four-stroke 2-valve double-cam ejector structure, with a simple structure, light and exquisite, and is a mini-handcraft that you can’t put it down.
Sophisticated craftsmanship: All-metal refined, highly textured metal parts, strong and impressive mechanical sense, can bring you knowledge about the wonderful world of physical and mechanical engineering in the process of playing.
Simulation operation: It is not only a decoration model, but also a simulation dynamic model that can simulate the operation of a real engine. Running the flywheel by hand, the piston is movable, the timing of the intake/exhaust valve corresponds, the working process of the engine is visualized, and the working principle is clear at a glance.
Science and education Assembly: It truly restores the working principle of the OHV engine and can be used for teaching demonstrations. At the same time, it is also a decompression handheld toy for mechanical enthusiasts, and it is also a good physical and mechanical educational toy for children.
This model has been assembled, do not disassemble at will. Do not play with violence to avoid damage to the model. Please keep it properly after use, and pay attention to cleaning and maintenance for longer use.

Specifications:

Material: Metal
Piston Diameter: 14mm
Stroke: 11mm
Flywheel Diameter: 24mm
Product Dimensions: 5 x 5 x 7.5cm
Product Weight: 75g
Package Dimensions: 10 x 10 x 7.5cm
Package Weight: 200g
Packing: Box
Age 8+

Black Mini Metal Four-Stroke Internal Combustion Engine Model for Educational Experimental Science Demonstration

Features:

Tribute to the Classic: Pay tribute to the first four-stroke internal combustion engine. This lightweight and exquisite engine model adopts a single-cylinder, four-stroke, 2-valve, dual camshaft pushrod structure, making it a captivating mini handheld craftwork.
Fine Craftsmanship: Made entirely of metal, with an aluminum alloy base and high-quality metal parts, the model has a strong mechanical feel and a deep impression. You can get knowledge about the fascinating world of physical-mechanical engineering while playing with it.
Realistic Operation: It is not just a decorative model, but also a simulation dynamic model that can simulate the operation of a real engine. Rotating the flywheel manually moves the piston and the intake valve timing corresponds to the exhaust valve timing. The visualized working process makes the working principle clear at a glance.
Science Education & Puzzle: Faithfully reproduces the working principle of the OHV engine for teaching demonstrations. Also a great stress-relieving handheld toy for mechanical enthusiasts and a wonderful physics & mechanical puzzle toy for children.
This model is pre-assembled. Rotate the four feet at the bottom to open the base and insert 2 AAA battery. Do not handle it violently to avoid damage. Please store it properly and pay attention to cleaning and maintenance for prolonged use.

Specifications:

Material: Aluminum Alloy + Copper Alloy + Stainless Steel
Power Supply: 2 AAA 1.5V Battery
Surface Treatment: Sandblasting Oxidation + Polishing
Product Weight: 210g
Package Weight: 280g
Product Dimensions: 6.5 x 6.5 x 10.5cm
Package Dimensions: 7.5 x 7.5 x 11cm
Packing: Box