J31008 Single-Cylinder Four-Stroke Gasoline Internal Combustion Engine Teaching Model Experimental Instrument STEM Toy
Features:
.This novel and unique engine model is finely crafted, of reliable quality, allowing for a clear observation of the operation process.
.Usage: Connect the power supply and slowly turn the handle in the direction indicated by the arrow.
.Operating Principle:
a. Intake Stroke: Open the intake valve and close the exhaust valve. The piston moves from the top dead center to bottom dead center, the fuel-air mixture enters the cylinder through the intake pipe.
b. Shut off exhaust and intake valves during the compression stroke. The fuel-air mixture was compressed in the cylinder as the piston moved from bottom dead center to top dead center, quickly raising the temperature.
c. Power Stroke: When the piston reaches the top dead center, the spark plug ignites (indicated by a light bulb illuminating). The fuel-air mixture is ignited and rapidly expands, pushing the piston downward to the bottom dead center. At the same time, the crankshaft outputs power.
d. Exhaust Stroke: Due to the inertia of the rotating mechanism, the crankshaft passes through the bottom dead center, causing the piston to move upwards. At the same time, the exhaust valve opens and exhaust gas is expelled from the exhaust pipe. Once the exhaust stroke is complete, the exhaust valve closes, and the intake valve opens. The piston moves downwards to start a new intake stroke, beginning the next cycle.
.Notes: As a physics teaching experimental toy, no support to start this model with gasoline. Instead, it is powered by electricity and allows for the observation of the working status of the piston, spark plug, and valve through the change of light.
.Extraordinary Significance: Suitable for mechanical enthusiasts or collectors who are interested in mechanical principles. Perfect as a decorative item but also a very valuable science education model, or an unforgettable gift for fixed engine model collectors.
Specifications:
.Material: Metal
.Product Weight: 1000g
.Product Dimensions: 16 x 12 x 30cm
.Package Dimensions: 19 x 15.2 x 33cm
.Package Weight: 1400g
.Packing: Box
.Ages: 14+
Fast Shipping and professional packaging
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Note: Orders that contain more than one item are assigned a specific processing period depending on the specific item.
Before shipping the items, our staff will carry out an extensive inspection of the products you ordered. Today, most orders will be delivered within 48 hours. The time to deliver varies from 3-7 days.
Returns
The stock market is always changing. It's not entirely managed by us since we are involved with multiple organizations, such as the factory and our storage. Therefore, the actual inventory could change at any time. Be aware that it is possible for your order to be out of stock after you have placed the order.
Our policy lasts for thirty days. If you haven't received the product within 30 days, we are unable to offer a refund or an exchange.
You can only return a product if it is unused and still in the same state as when you first received it. It should also be returned in the original packaging.
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