Close one hole of your nose and try to breath in. Feel any difference. Coming back to the subject. By increasing the # of valves you get the below features. a) better combustion chamber shape, resulting in better combustion, resulting in better power and fuel economy.
There are intake valves and exhaust valves. On the intake side, the intake valve opens which lets the fuel/air mixture into the combusion chamber. At some point (measured in degrees of crank rotation) the intake valve closes, the air/fuel mixture is compressed and ignited by the spark plug. Then the spent mixture exits the cylinder when the exhaust valve opens. Valve configuration varies somewhat, but regardless of how many valves there are there will always be at least one intake and one exhaust valve. Some cylinder heads have 2 intake and 2 exhaust valves which is what is described as the 4-valve per cylinder setup.
As the first two responders pointed out, you have intake valves, which let air in a diesel, or air plus gas in a gasoline engine, into the cylinder; and exhaust valves, which let the spent gases leave the cylinder.
One important thing multiple valves can do for you is to let the spark plug be put in the center of the cylinder, from where the flame front can radiate evenly through the chamber.
A 16-valve engine (if it's a 4-cylinder) has two intake and two exhaust valves. A 16-valve engine could also be an 8-cylinder engine with 1 intake and 1 exhaust valve per cylinder. A 12-valve engine has two intake and one exhaust valve (if it's a 4 cylinder engine). a 12-valve engine may also be a 6-cylinder engine with 1 intake and 1 exhaust valve per cylinder.
evan was here
valves are use in four stroke engine, and ports are use in two stroke engine.
if you see the difference between valves
An 8V engines, is a 4 cylinder engine with two valves per cylinder. A 16V engine has 4 valves per cylinder. More valves is like having bigger lungs, it will make more horsepower out of the same size engine.
Some valves lie between the atria and some valves lie between the atrium and the ventricle
Its purpose is to open the right valves at the right times.
Mainly, the difference is that in an overhead cam engine, the camshaft is mounted on the head of the engine, and the valves are still overhead, in an overhead valve engine (sometimes called a "pushrod motor"), the camshaft is in the crankcase.
The only difference is the dohc engine has 2 camshafts, an intake and an exhaust camshaft. A standard 2.0 has only 1 camshaft. Many dohc engines also have 4 valves per cylinder whereas a 2.0 sohc generally has 2 valves per cylinder.
When the heart is relaxed, the AV valves are open and the SL valves are closed. When the heart contracts, the AV valves are closed and the SL valves are open.
Smart valves produce gas faster
veins have valves
Yes , the fan belt drives the engine accessories , the timing belt is used to keep the engine crankshaft and pistons " in time " with the camshaft and valves
The main difference between API 600 and API 503 valves is their port diameter. Also, the pressure testing between the two is different as well.
Valves will clatter if the engine is overheating.Valves will clatter if the engine is overheating.
The HO engine had higher compression, bigger intake valves, and a different cam. Also, it was painted black.
ANSWER:Watch this video: http://www.youtube.com/watch?v=EXfzQla0D_E
The difference between lub and dub (The heart sounds S1 and S2 of a heartbeat) is that the lub occurs when atrioventricular valves close, and dub occurs when the aortic and pulmonary valves close (valves leading out of the heart from the left and right ventricles).
The valves between the chambers of the heart are there to prevent the backflow of blood between the atria and the ventricles. (Bicuspid and Tricuspid Valves) and to prevent the backflow of blood between the Aorta and the ventricle on the left side and the ventricle and the pulmonary artery on the right side. (Semi lunar valves) If there are problems with valves, this can lead to varicous veins.
Yes. The HO engine in the Monte Carlo SS had higher compression, bigger valves, and a different cam.
A trumpet uses valves and is pitched higher than a trombone. The trombone uses a slide instead of valves, and is pitched between the trumpet and the tuba.
It is exactly what it says. The number of valves the engine has per cylinder. If you have 16 valves on an 8 cylinder engine, you have 2 valves per cylinder.
On a 1996 Ford Taurus : The 3.0 liter " Vulcan " V6 engine has ( 2 valves per engine cylinder , total of 12 valves ) The 3.0 liter " Duratec " DOHC , V6 engine has ( 4 valves per engine cylinder , total of 24 valves )
a four stroke has a timing chain and a cam and a two stroke doesnt a two stroke has reed valves
On a 1999 Ford Taurus : If you have the 3.0 " Vulcan " V6 engine ( which is an Over Head Valve / pushrod design engine ) there are ( a total of 12 valves , 2 valves for each engine cylinder ) If you have the 3.0 " Duratec " V6 engine ( which is a Dual Over Head Cam design engine ) there are ( a total of 24 valves , 4 valves for each engine cylinder )