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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
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoOverlap is where both Exhaust and Inlet valves on the same cylinder are open at the same time., this happens at around Top Dead Centre as the Inlet needs to be open as soon as the piston starts to go down the bore while the Exhaust needed to stay open until the piston had stopped rising.
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What does superior valve mean in a medical term?
Superior valve means the valve on top.
What is meant by the term valve overlap?
There is a short time between the exhaust and intake stroke where all the valves are slightly open at the same time. This period of time is called valve overlap. This is because the intake valves are just starting to open as the exhaust valves are just finishing closing. This is done so flow through the engine can be maintained at engine operating speeds.
What are some synonyms of the term 'overlap'?
Some synonyms of the term overlap are extend along and fold over. The word overlap is defined as to lie over something else or the winged or extended part of an object.
Where is the EGR valve on a 1997 Hyundai Elantra?
Does not have one. The engine uses cam overlap to achieve the effect of the EGR valve.
What does it mean the word tile in medical term?
The medical term derived from a root meaning "tile" is "squamous." The squamous epithelium involves cells that almost appear to overlap like tiles.
What is meant by the term power overlap?
Like, Power Redundancy?
What does it mean when branches of science overlap?
when science branches overlap that means that they are overfilled with to much information
What is purpose of valve overlap?
It improves the efficiency of the engine by allowing better exhaust out flow and intake in flow.
When the intake and exhaust valves are both open at the same time that length of time is called?
Valve overlap.
A term that means in layers?
Some terms that come closed to meaning in layers are fold, overlap, and cover. Stacked could also be used to mean arranged in layers.
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 does a overlap valve do?
send a small amount of raw fuel/air to the catalytic convertor,which increases the efficiency of the operating engine.
