0
i am doing a coures in tafe inspect and service engines and i would like to know this rotates the crankshaft as the piston moves down the cylinder
Wiki User
∙ 15y ago
Add your answer:
Earn +20 pts
How does a car heat engine change thermal energy into mechanical?
burning fuel in the cylinder gets hot and expandsthe expansion pushes against the pistonthe piston moves pushing on the piston rodthe piston rod moves pushing on the crankshaft eccentricthe crankshaft eccentric rotates the crankshaftthe rotations of the crankshaft pass through the transmission to the wheels to move the car.
Do the pistons turn the crankshaft or the crankshaft turn the pistons?
Technically both, before the vehicle is running on its own via combustion the crankshaft rotates and moves the pistons, once combustion has occurred the pistons take over if you will and turn the crank which rotates the next piston into position for combustion
How does a piston moves downward in d suction operation in a 4stroke engine?
The piston is moved by the connecting rod which in turn is moved by the crankshaft. It is only on the power stroke that the piston moves the connecting rod, crankshaft and all the rest of the engine, in all the other strokes the engine, crankshaft and connecting rod move the piston.
What is the relation between the movement of the piston and the movement of the crankshaft?
In essence, the the displacement of the piston is porportional to the sine of the phase of the crankshaft. this isn't quite true but it gives a rough idea of what is happening. if you meant what happens in one cycle of a piston/crankshaft then it is essentially this: as the piston moves down it forces the crankshaft through one half of a revolution and then on the way back up the piston forces the crankshaft through the remaining half of a revolution - back to its start position to start again
What happenes as the piston moves down?
when the piston moves down all of the water that is in the piston moves p and it comes out
How does a rotating piston function in a diesel engine?
Piston never rotates. Piston moves up and down or to and fro. Pistons in some marine diesel medium speed engines (500 - 1000 rpm) have rotating pistons. Instead of having a gudgeon pin like most 4 stroke engines, these pistons have a spherical bearing. Inside the piston skirt is a circular ratchet system that rotates the piston as the connecting rod swings on each stroke. At 500 rpm, the piston rotates at about 10 rpm. Advantages are less wear, better lubrication and hence longer life.
What do connecting rods do in an engine?
The rod is attached to the piston on one end and the crankshaft on the other. The force applied to the piston during ignition of the gases is transferred to the crankshaft through the connecting rod. Then the crank turns and the connecting rod moves the piston up and down to either expel gases, intake a fuel/air mixture or compress the fuel/air mixture.
What is a piston?
A piston is essentially a moving "stopper" in a cylinder. It fits closely and responds to mechanical pressure from a connecting rod on one end or from a fluid on the other end. In air compressors that have pistons, the crankshaft turns and moves the piston (which is linked to the crank via a connecting rod) up and down in the cylinder to compress gas (like air). In an internal combustion engine, a burning fuel-air mixtue expands and forces the piston down, which transfers mechanical energy to the crankshaft. Use the link to the related question about what a piston does for more information.
What piston is?
A piston is essentially a moving "stopper" in a cylinder. It fits closely and responds to mechanical pressure from a connecting rod on one end or from a fluid on the other end. In air compressors that have pistons, the crankshaft turns and moves the piston (which is linked to the crank via a connecting rod) up and down in the cylinder to compress gas (like air). In an internal combustion engine, a burning fuel-air mixtue expands and forces the piston down, which transfers mechanical energy to the crankshaft. Use the link to the related question about what a piston does for more information.
Why does a cam shaft run at half the speed of the crankshaft?
The four strokes of a four-stroke engine are intake, compression, power and exhaust. The crankshaft controls the upward and downward motion of the pistons. The camshaft controls the opening and closing of the intake and exhaust valves. Intake stroke- the intake valve is open and the exhaust valve is closed. The piston moves downward, decreasing the pressure in the cylinder, which draws the fuel-air mixture in through the intake valve. Compression stroke- both the intake valve and the exhaust valve are closed. The piston moves upward, compressing the fuel-air mixture. When the piston nears TDC (top dead center), the fuel-air mixture is ignited by the spark plug. Power stroke- both the intake valve and the exhaust valve are closed. The explosion caused by the ignition of the fuel-air mixture (combustion) forces the piston downward. Exhaust stroke- the intake valve is closed and the exhaust valve is open. The piston moves upward, forcing the gases produced by combustion out of the cylinder through the exhaust valve. So, for each firing of a given cylinder, the intake valve opens once and the exhaust valve opens once. But, for each firing of a given cylinder, the piston must travel downward and then upward twice (in each direction.). Therefore, the crankshaft must rotate twice per given cylinder firing, while the camshaft rotates only once per given cylinder firing.
What is piston diameter?
A piston is a plunger, or a plug that moves inside a cube, a cylinder. The piston diameter is the diameter of this plunger/plug. It's a tiny bit smaller than the diameter of the cylinder the piston moves in.
What is the path which the earth moves as it rotates?
orbit
