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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4.3 ★★★★★
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Mena
Carnegie, US
★★★★★ 5
Good size for my pug!
Color: Dentachew 3 Pk
I love how it’s a good size for my pug it is easy for her to play around with. I had stuffed animals for her to play around with but it looked so silly to watch her play with something that is 10 times as big as her 😂. I had to buy her these toys and she seemed so happy when she first got them. It was so funny and interesting that she had to chew all three toys and decide which one she liked. At first she decided to play with the rope toy and she liked the rope toy, then she got curious with the rubber toys. She has decided that the rubber toys are her favorite and I’ve tried to engage with playing with her with the rope toy. She gets more interactive with the rubber toys! She also looked so relieved while chewing them so that’s a plus!
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Reviewed in the United States on May 16, 2026
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Verified Purchase
Lindap
Draper, US
★★★★★ 4
Good for Teething puppies
Color: Teething Stick
After getting my fingers chewed and bitten by my new foster - 8 week old Yorkie , I was desperate to find good teething toys. Fortunately this one arrived quickly. Turned out to be very good for teething puppies! Charlie loves this cooling stick. Once it’s frozen, the cold really seems to soothe his sore gums. The icy part doesn’t stay frozen for long, but it works so well that I bought a second one to keep ready in the freezer while he’s working on the first. Even after it warmed up, he still enjoyed chewing on the soft stuffed part and the tentacles. The product card says not to use it as a chew toy, so supervision is a must, but it held up just fine so far. Overall, this has been a big help during the teething phase — short-lived when frozen, but very effective while it lasts! And worth every penny to save my fingers from being a chew toy.
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Reviewed in the United States on October 7, 2025
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Amanda Rogers
Grantham, US
★★★★★ 5
From Puppy Teething to Adult Favorite – 7 Years Later
Color: Teething Stick, Color: Teething Stick
This has been one of the best toys I’ve ever bought! My dog has loved the Pupstages Cool Teething Stick since she was a tiny puppy, and now at 7 years old, it’s still one of her absolute favorites. It’s been amazing for soothing teething when she was little, and now she still enjoys chewing on it and carrying it around. It’s held up surprisingly well over the years, especially considering how much use it’s gotten. I also love that you can cool it for extra relief—it really helped during those puppy stages. If you’re looking for a toy that lasts and actually becomes a long-term favorite, this is definitely it. Highly recommend for both puppies and even older dogs who still love a good chew! 🐶
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Reviewed in the United States on May 1, 2026
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Stefne
Alexandria, US
★★★★★ 5
Great for little dogs that like to chew
Color: Hedgehog
Great for my 10 lb chihuahua that loves to chew! Keeps his teeth clean!
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Reviewed in the United States on June 7, 2026
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pgm
Carnegie, US
★★★★★ 5
Cute Fun Puppies Love it Immediately Good Price
Color: Teething Stick
This little top was a huge success for my active Multipoo! She started playing with it immediately. I think it will become her favorite toy! It isn't expensive. It is well made and very cute!
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Reviewed in the United States on June 7, 2026

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