SKU: 833113237

4 Stroke Gasoline Engine Model Metal Internal Combustion Engine Physics Experiment Teaching Instrument

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Description

4 Stroke Gasoline Engine Model Metal Internal Combustion Engine Physics Experiment Teaching Instrument4 Stroke Gasoline Engine Model Metal Internal Combustion Engine Physics Experiment Teaching Instrument Features: . 100% brand new with high quality . The design is novel and the shape is unique . The model is made with fine quality and reliable quality, which can visually observe the operation process of the gasoline engine . Usage: Turn on the power and slowly turn the handle in the direction indicated by the arrow . Suction stroke: The intake valve

4 Stroke Gasoline Engine Model Metal Internal Combustion Engine Physics Experiment Teaching Instrument

Features:


.100% brand new with high quality
.The design is novel and the shape is unique

.The model is made with fine quality and reliable quality, which can visually observe the operation process of the gasoline engine

.Usage: Turn on the power and slowly turn the handle in the direction indicated by the arrow


.Suction stroke: The intake valve is opened, the exhaust valve is closed, and the piston moves downward from the top dead center to the bottom dead center.A mixture of fuel and air enters the cylinder from the intake manifold


.Compression stroke: The intake valve and the exhaust valve are closed, the piston moves from bottom to top,and the fuel mixture is compressed in the cylinder, and the temperature rises rapidly


.Power stroke: When the piston reaches the top dead center, the spark plug is ignited (represented by the bulb at the spark plug)


.The fuel mixture is spotted (the bulb is extinguished to indicate that the ignition is complete). The gas in the cylinder expands rapidly due to being ignited, pushing the piston to start moving downward to the bottom dead center. At this time, the crankshaft outputs power

.Exhaust stroke: Due to the inertia of the rotating mechanism, the crankshaft passes the bottom dead center and the piston moves upward


.At the same time, the exhaust valve is opened and the exhaust gas is discharged from the exhaust pipe.After the exhaust stroke is completed, the exhaust valve is closed, the intake valve is opened, the piston moves downward, a new suction stroke is started, and the next cycle is entered

Specifications:

.Color: As Shown
.Material: Metal
.Product Weight: 1300g
.Package Dimensions: 16*13*29cm    
.Package Weight: 1400g
.Packing: Box 

Package Content:

.1 x Gasoline Engine Model

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SKU: 833113237

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Massapequa, US
★★★★★ 5
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Color: Pink
This is a small but compact jewelry case. Love that it holds all your special items, and you can grab and go anywhere with it! Love the pink color and that it has a zipper to keep the jewelry from falling out .
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Reviewed in the United States on May 7, 2026
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Nicholas
Cuba, US
★★★★★ 4
Great for travel
Got this for my wife to use on a trip, this thick cushion makes it feel safe and has a simple look to it but is still nice. Only one zipper so can't really lock it but it's small enough to where you can fit it pretty much anywhere with a lock already
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Reviewed in the United States on January 8, 2026
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Christine
Grantham, US
★★★★★ 5
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So cute for jewerly and it’s pretty sturdy and the lock is secure so your kids won’t get in it if they try to open it. Perfect for your everyday jewerly I bought it to save some space on my dresser
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Reviewed in the United States on May 22, 2026
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Reenie B.
Battle Creek, US
★★★★★ 5
Great Travel Jewelry Box
Great travel case for jewelry The material is strong and keeps my jewelry safe while traveling. It provides organization and quick access to my jewelry while keeping them safe. Very pretty color and a nice soft material yet strong to touch.
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Reviewed in the United States on April 22, 2026
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Erin Holte
Alexandria, US
★★★★★ 3
Jewelry travel case
Color and design are perfect. I guess I thought it would be just a little bit bigger. For me , its not the right size but the price and quality are great.
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Reviewed in the United States on November 19, 2025

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