The Power-Train Control Module (PCM) software which controls the cylinder deactivation function may not operate correctly, and may cause an Intake Valve
Rocker Arm to move out of position and make contact with other internal engine parts.'
When the vehicle is maintaining a constant speed and requires low engine output, CVVD opens the intake valve
from the middle to end of the compression stroke.
It is also observed that there is a sudden increase in the pressure at the first just after IVO; this is because the pressure inside the cylinder is slightly higher than the intake pressure and also the intake valve
opens before (TDC) causing a compression wave to propagate towards the valve and results in a pressure rise at that point.
Held in four Asian markets, Philippines, Hong Kong, Cambodia and Thailand, the test, conducted last October, inspected the intake valves
of 94 cars using a Karl Storz Borescope to examine their engine's fuel delivery systems, then compared them against the industry standard Co-operative Research Council (CRC) Intake Valve
Deposit (IVD) rating system, where 10 is perfectly clean.
The valve seat inserts and valves collectively seals off the combustion chamber and controls the intake valve
& exhaust valve.
There's an intake valve
on the river that was built in the 1940s, but will help the city establish water reuse as a viable alternative.
Thermodynamic conditions during the closed cycle (compression, combustion, and expansion) can be directly controlled by adjusting the intake valve
opening (IVO) and intake valve
closing (IVC) angle, which defines the total intake mass flow rate and the effective compression ratio of the engine .
The #2 cylinder cracked between the fins aft of the fuel injector, near the intake valve
, and was leaking fuel.
To illustrate the model, let's take a simple example consisting of a fluid tank with an intake valve
and an outflow valve.