The intake manifold is just a hollow chamber that holds a cloud of gas and air. The pistons then draw the gas fumes into the cylinder as they go down and closes the intake valve. Then the piston comes back up where the gas fumes are compressed and the spark plug fires driving the piston down. Then on the next stroke the piston comes up where the exhaust valve opens and the burnt gas is let out through the exhaust manifold and then through the exhaust pipe. Because of the heat they couldn't just hook the exhaust pipes to the engine. The cast iron exhaust manifold dissipates enough of the heat the exhaust pipe can handle it.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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