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Describe the position of the intake and exhaust valves during most of the power stage in four-cycle gas engine?
Wiki User
∙ 11y ago
All right. Well, let's start from the end of the exhaust cycle (piston is up).
The intake valve opens as the piston goes down, sucking in the fuel/air mixture. The valve closes when the piston reaches the bottom. As the piston makes its way back up, it compresses the mixture and near the top the spark plug ignites the mixture. This explosion sends the piston shooting down again and as it comes back up, the exhaust valve opens and the piston shoves waste gasses out of the engine. Then that valve closes and the cycle starts all over again.
Wiki User
∙ 11y ago
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What is the position of the intake and exhaust valves during most of the power stage in a four cycle gas engine?
They are closed during the power stage.
What describes the position of intake and exhaust valves during the most powerful stage in a four-cycle gas engine?
-intake: exhaust closed, intake open -compression: exhaust closed, intake closed -combustion: exhaust closed, intake closed -exhaust: exhaust open, intake closed
What position of the intake and exhaust valves during most of the power stage in a four-cycle gas engine?
Closed
The position of the intake and exhaust valves during most of the power stage in a four-cycle gas engine?
Closed
Which of the following statements correctly describes the position of the intake and exhaust valves during most of the power stage?
Closed.
What statement correctly describes the position of the intake and exhaust valves during most of the power stage in a four-cycle gas engine?
Both the intake and the exhaust valve are closed.
What is the correct position of the intake valve and the exhaust valve during most of the power stage in a four-cycle engine?
Closed
Which of the follwing statement correctly describes the position of the litake and exhaust valves during most of the power stage in a four cycle gas engine?
Closed
What is the correct position of the intake and exhaust valves during most of the power stage in a four cycle gas engine?
During the power or combustion stage of a piston cycle, both valves are necessarily closed, because the expansion of gases is driving the piston down.
What is over lap?
Is the time when intake and exhaust valve remain oper during the exhaust stroke.
What is valve lapping?
Is the time when intake and exhaust valve remain oper during the exhaust stroke.
What position of the Earth in its orbit it is summertime in the northern hemisphere?
Well gee, it's kind of difficult to describe positions of Earth in its orbit. The only way I know to describe it during northern-hemisphere Summer would be to say that it's the position where a line from the sun to the Earth points in the general direction of Orion.
