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The term for the time when both the intake and exhaust valves are open simultaneously is called "valve overlap." This occurs during the end of the exhaust stroke and the beginning of the intake stroke in a four-stroke engine cycle. Valve overlap can enhance engine efficiency by allowing better exhaust scavenging and improved intake charge filling.

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What is Proton savvy 1.2 engine valve clearance?

The proton savvy uses a renault 1.2 16V engine code D4F and many specs can be found on line from renault forums. 11 TOP AND FRONT OF ENGINE Cylinder head gasket 11-7 Setting the valve clearances Valve clearance setting values (in mm): - inlet 0.05to 0.12 - exhaust 0.15to 0.22 Open exhaust valve method Bring the exhaust valve of cylinderno. 1 to the fully open position, then adjust the inlet valve clearance for cylinder no. 3and the exhaust valve clearance for cylinder no. 4. Follow the same method for the other cylinders, in the order shown by the table below.


Cone shaped cloth bag open at both ends for measuring wind direction?

Windsock


What are the two types of thrust reverser?

The two types of thrust reverser are the target-style thrust reverser and the clamshell-style thrust reverser. The target-style thrust reverser redirects the jet exhaust forward using a metal plate or "bucket." The clamshell-style thrust reverser consists of two doors that open outwards to redirect the jet exhaust.


Why does your car smell like propane with the windows open?

I dont know why it might smell like propane in your case but my car runs on propane so the exhaust has a propane sorta smell to it. In your case id check your exhaust. You might need a new catalytic converter or something may be leaking under your hood.


What is the main function of lifters in a motor?

The main function of lifters in a motor is to transfer the motion of the camshaft into vertical motion to actuate the valves. This vertical motion allows the valves to open and close at the appropriate times to let air and fuel into the engine and exhaust gases out.

Related Questions

How do you open valves in car engine?

The camshaft(s) lobes push up on the rockers on top of the cylinders, which pushes down on the vavles, causing them to open


When the intake and exhaust valves are both open at the same time that length of time is called?

Valve overlap.


What do Both valves on a four stroke reciprocating engine open the?

In a four-stroke reciprocating engine, both valves—the intake valve and the exhaust valve—open to facilitate the engine's four distinct strokes: intake, compression, power, and exhaust. The intake valve opens to allow the air-fuel mixture into the combustion chamber during the intake stroke, while the exhaust valve opens to release exhaust gases after combustion during the exhaust stroke. This coordinated opening and closing of the valves ensure efficient engine operation and optimal performance.


What is valve overlap?

Valve overlap occurs in a four-stroke engine at the end of the Exhaust stroke and at the beginning of the Induction stroke; and is when both the exhaust and inlet valves are open at the same time. At the end of the Exhaust stroke, the Exhaust valve is closing and the Inlet valve is starting to open in preparation for the induction of fuel and air into the cylinder. It is common knowledge that in vehicles that cannot alter the valve timing, the Inlet valve opens approx 6 degrees before top-dead-centre and the Exhaust valve closes at 9 degrees after top-dead-centre


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


Are Both valves closed on the power and exhaust strokes?

In a four-stroke engine, both the intake and exhaust valves are closed during the power stroke, allowing for maximum pressure to build from the combustion of the air-fuel mixture. Similarly, during the exhaust stroke, both valves are also closed momentarily after the power stroke until the piston moves up to expel the exhaust gases. However, the intake valve opens before the power stroke begins, and the exhaust valve opens at the end of the power stroke to facilitate the exhaust process. Thus, while both valves are closed during the power and exhaust strokes themselves, they open at specific times in the cycle.


What is the function of valves in the cardiovascular system?

Valves are used to open/ to let in red blood cells and to clos when they are done this is also the sound of your heart beat is the vavles opening and closing


What is the function of the valves in the cardiovascular system?

Valves are used to open/ to let in red blood cells and to clos when they are done this is also the sound of your heart beat is the vavles opening and closing


What does baloney cut exhaust mean?

the open end of the exhaust pipe is cut at an angle.


What does the term valve overlap mean?

Valve timing overlap is the time when both exhaust and intake valves are open most engines with catalytic converters require valve overlap in order to send a small amount of raw fuel/ air mix to the converter's. An "open cam" has valve overlap a "closed" cam does not


What is the time during the four stroke cycle when both valves are open?

During the four-stroke cycle, both the intake and exhaust valves are open simultaneously during the overlap period, which occurs at the end of the exhaust stroke and the beginning of the intake stroke. This typically happens just before the piston reaches the bottom of the exhaust stroke and just as it starts to descend for the intake stroke. The overlap allows for better scavenging of exhaust gases and aids in the intake of the fresh air-fuel mixture. The exact timing of this overlap can vary based on the engine's design and camshaft specifications.


What is the function of cumbustion chamber?

The combustion chamber has an exhaust valve and an intake valve. The power stroke is ignited just before TDC, in timing with the spark plug to ignite the fuel/air mixture. Hence, this forces the piston down with both valves closed. NOTE:Intake stroke (valve open to receive the f/a mixture), Compression stroke, both valves closed, Power stoke (see above), Exhaust stroke (piston upwards, with only exhaust valve open.