How over head valve mechanism works. ✔

Показать описание

The working of over head valve mechanism is explained.

The over head valve mechanism is explained in this topic. It is the most widely used valve arrangement mechanism.
The main components of this mechanism as shown in fig:
Cam.
Valve lifter.
Push rod.
Rocker arm.
Spring.
Valve guide.
Working of over head valve mechanism:
Stage 1 (Valve opening): As show in the fig:, the cam (the profile of cam is oval in shape) rotation lifts the valve lifter due to its profile, the valve lifter is connected to the push rod and intern connected to the rocker arm. So the movement of the valve lifter is reflected through the push rod towards the rocker arm. Due to this arrangement, as the push rod hits the rocker arm, it will tend the rocker arm to move done. As rocker arm moves down, it will hit the valve and will move the valve down (valve opens to the cylinder) resulting the air fuel mixture to enter the cylinder.
Stage 2 (Valve closing): As the cam rotates again its profile changes and the load exerted by the cam on the valve lifter reduces, as the spring on the valve shown in fig: is in compression (due to the valve opening) retains its position and closes the valve.

Related topics: Technical explained working of explanation repair maintenance automobile engineering mechanical details on cars vehicles technology technical the best worlds best perfect well very good explanation gears how does it work animations of design invention discovery works what is where service practical machines real dismantling assembling production creation torque fixing servicing installation installed handling teaching tutorial hands on training operation techtrixinfo greasing maintenance scheduled designing process removing welding fabrication fabricating recommended recommented warranty weight procedure standard vibration load efficiency efficient productivity consumption fuel network wear and tear crack stroke hydraulics flow