Showing posts with label Science. Show all posts
Showing posts with label Science. Show all posts

Thursday, February 25, 2021

Camshaft


We just learned about the Oil Galleries.

Another part of a car engine is the Camshaft.

We learned a long time ago that a Cam is a disc with a bump on it that spins around and pushes down to open up valves for the engine.

The camshaft is the long metal pole that cams are attached to.
The shaft spins around, and the cams take turns pushing down with their bumps at different times.



(from: wikipedia - camshaft)


Kid Facts - Blast from the past: Hydraulics

Thursday, February 18, 2021

Oil Galleries


We just learned about the Coolant Passages.

Some other parts of a car's engine are called the Oil Galleries.

Oil in the engine helps things run smoothly, so that the metal parts don't grind against each other.
There are holes for oil that go like tunnels all through the engine block, carrying the oil around to keep everything slippery and smooth.


(from: wikipedia - engine block)


Kid Facts - Blast from the past: Negative Feedback

Thursday, February 11, 2021

Coolant Passages


We just learned about the Head Gasket.

Some more parts of the engine block on a car are the Coolant Passages.

The pistons going up and down with the burning fuel makes a lot of heat for the engine.
To cool the engine down, there are little tunnels or passages that go through the engine, and when the engine is running there is cooling liquid that goes in one side of those holes and out the other.

The cool liquid helps keep the engine from overheating.


(from: wikipedia - engine block)


Kid Facts - Blast from the past: Encoder

Thursday, February 4, 2021

Head Gasket


We just learned about the Cylinder Head.

Another part of a car's engine is the Head Gasket.

We learned already that there is a cylinder block which holds all of the pistons that go up and down, and a cylinder head that goes up above the piston to give it fuel and take away the exhaust.

The Head Gasket is in between the cylinder block and cylinder head.
It helps make sure that there is no gas or liquid leaking out when the block and head are connected together.


(from: wikipedia - )


Kid Facts - Blast from the past: Servo

Thursday, January 28, 2021

Cylinder Head


We just learned about the Cylinder in the engine block.

Another part of a car's engine block is the Cylinder Head.

The engine block cylinders are the piece that holds that pistons that move up and down.
On top of that cylinder part is the cylinder head.
This is the big metal piece that goes on top and closes in the pistons.

It also has other parts that let in fuel and take out the wasted exhaust from the piston.


(from: wikipedia - cylinder head)


Kid Facts - Blast from the past: Valve Types

Thursday, January 7, 2021

Coupling


We just learned about the Leading Wheel.

Another part of a steam locomotive is a Coupling, also called a coupler.

This is what connects the train cars to each other.
Some of the train couplings are loose with chains and bang into each other a lot.
Other types are very tightly linked together and don't move much.



(from: wikipedia - railway coupling)


Kid Facts - Blast from the past: Valve Trim

Thursday, December 31, 2020

Leading Wheel


We just learned about the Driving Wheel.

Another part of a steam locomotive is the Leading Wheel.

These wheels are in the front of the train, and are used to help hold up the front part of the locomotive.

They are not the driving wheels that are moved around by the steam engine, they just roll along when the driving wheels push the train along, and help hold up the train.


(from: wikipedia - leading wheel)


Kid Facts - Blast from the past: Valve Spring

Thursday, December 24, 2020

Driving Wheel


We just learned about the Leaf Spring.

Another part of a steam locomotive is the Driving Wheel.

When the steam power moves the pistons, it is connected to rods that turn the wheels.
Only some of the wheels are connected to these rods, and they are called the driving wheels.
The other wheels are just holding up the train and they turn just because the driving wheels are pulling the train along.

This is the same for most other things with wheels too, like the pedals on a bicycle usually only turn the back wheel of the bike.


(from: wikipedia - driving wheel)


Kid Facts - Blast from the past: Gasket

Thursday, December 10, 2020

Blastpipe


We just learned about the Brake Hose.

Another part of a steam locomotive is the Blastpipe.

Remember we learned about the firebox where the coal burns, and the boiler where the water heats up and makes steam.

For the fire to keep burning, it needs fresh air.
The blastpipe is connected to the boiler and the firebox and the chimney.
When the boiler lets off steam, it helps pull air through the firebox, and then all of the smoke and steam goes shooting out the chimney.


(from: wikipedia - blastpipe)


Kid Facts - Blast from the past: Valve Seat

Thursday, December 3, 2020

Brake Hose


We just learned about the locomotive Headlight.

Another part of a steam locomotive is the Brake Hose.

Remember we learned before that when the engineer wants to stop the train he pulls a lever that uses the high pressure air brakes to push the brake shoe and stop the train.

When a train has a lot of passenger or supply cars behind the main engine, they can have brake shoes to help slow them down too.

The high pressure air brakes have tubes that go from car to car to bring the air pressure that closes the brake shoes to slow down the train.


(from: wikipedia - gladhand connector)


Kid Facts - Blast from the past: Valve Disc

Thursday, November 26, 2020

Headlight


We just learned about the Chimney.

Another part of a locomotive is the Headlight or headlamp.

The headlight isn't really for the people driving the train, because they are going too fast to be able to stop if they saw something.
It's really meant to warn everyone to get off the tracks and to stay out of the way.
There are also workers at stations who need to know the train is coming, and they can see the light from very far away.


(from: wikipedia - steam locomotive components)


Kid Facts - Blast from the past: Valve Handle

Thursday, November 19, 2020

Chimney


We just learned about the Superheater.

Another part of a steam locomotive is the Chimney.

The smoke from the boiler goes up the chimney pipe so the smoke goes up high and the engineer can still see down the tracks.


(from: wikipedia - chimney (locomotive))


Kid Facts - Blast from the past: Valve Port

Thursday, November 12, 2020

Superheater


We just learned about the steam locomotive Boiler.

Another part of a steam locomotive is the Superheater.

When the water gets heated up by the fire and goes through the fire tube boiler, it gets really hot and leaves the boiler as steam.
To make it even hotter, that hot steam is sent back into some other pipes to get heated even more.
This is called a superheater.

Superheated steam is better because it is more of a dry steam.
The dry steam holds the heat better, and helps the inside of the engine not get wet and rusty.


(from: wikipedia - superheater)


Kid Facts - Blast from the past: Bonnet

Thursday, November 5, 2020

Boiler


We just learned about the Firebox on a locomotive.

Another part of a steam locomotive is the Boiler.

We learned before about the Fire Tube Boiler that has a bunch of tubes full of water that are heated up by the burning coal in the Firebox.

The boiler is the long cylinder shaped part of the locomotive that has all of that fire burning and hot water heating inside of it.


(from: wikipedia - boiler)


Kid Facts - Blast from the past: Valve Body

Thursday, October 29, 2020

Firebox


We just learned about the Locomotive Piston.

Another part of a steam locomotive is the Firebox.

Remember we learned about the Tender Coal Car where all the coal is stored, and the Fireman who is the person in the Cab that shovels the coal from the Coal Car.

The Fireman shovels the coal into the Firebox where it burns up really hot, which heats up the water to make steam.


(from: wikipedia - firebox (steam engine))


Kid Facts - Blast from the past: Valve

Thursday, October 22, 2020

Locomotive Piston


We just learned about the Piston Rod.

Another part of the Locomotive is the Piston.

This is the thing that pushes and pulls the piston rod, using the power of the steam.

Remember we've learned about how hot steam pushes out, and then cooling the steam makes a vaccuum that pulls or sucks in.
- The pushing and pulling of the steam and vaccuum is pushes and pulls this piston
- The piston pushes and pulls the piston rod
- The piston rod pushes and pulls the connecting rod
- The connecting rod spins the train wheel around


(from: wikipedia - piston)


Kid Facts - Blast from the past: Cam

Thursday, October 15, 2020

Piston Rod


We just learned about the Connecting Rod.

Another part of a steam locomotive is the Piston Rod.

This is the big straight metal rod that is connected to the piston that goes up and down with the steam and vaccuum.

The piston rod is connected to other metal rods that help turn wheels and make the engine go, but the piston just goes straight back and forth and does not turn around at all.


(from: wikipedia - piston rod)


Kid Facts - Blast from the past: Linear Actuator

Thursday, October 8, 2020

Connecting Rod


We just learned about the Coupling Rod that hooks all the wheels together.

Another part of a steam locomotive is the Connecting Rod.

Remember that we learned about how steam pressure works with a steam cylinder to push and pull a piece of metal in a tube called a piston.

The piston is hooked up to the connecting rod, which takes that forward and back pushing an pulling and makes it into a circular push and pull to spin the locomotive's wheel around.


(from: wikipedia - connecting rod)


Kid Facts - Blast from the past: Rack and Pinion

Thursday, October 1, 2020

Coupling Rod


We just learned about the Brake Shoe.

Another part of a steam locomotive is a Coupling Rod or Side Rod.

When the steam engine uses its power to turn the wheel of a steam locomotive, it is usually only turning one wheel.
That wheel is connected to the other wheels by a big metal rod called the coupling rod.

So when the driving wheel is turned, it makes all the wheels turn and spin at the same speed so it makes the train more stable and gives it more power.


(from: wikipedia - coupling rod)


Kid Facts - Blast from the past: Air Gap

Thursday, September 24, 2020

Brake Shoe


We just learned about the Trailing Wheel.

Another part of a steam locomotive is the Brake Shoe.

When the train has to stop, there is a rounded piece of metal called the brake shoe that is pushed against the wheels to try and slow them down.

The scraping of the brake shoes on the metal wheel also helps clean the wheels, and after a while the brake shoes get worn down and need to be replaced with new ones.



(from: wikipedia - brake shoe)


Kid Facts - Blast from the past: Electromagnet