Mechanical Engineering - Automobile Engineering - Discussion
Discussion Forum : Automobile Engineering - Section 1 (Q.No. 10)
10.
It is necessary to maintain the valve clearances as they
Discussion:
18 comments Page 1 of 2.
Rajesh said:
1 decade ago
The Main use of valve clearance is at the time of engine running high amount of heat is generated so that a metal has expandable in nature so valve clearance is must. So if valve clearance is not there it may chance to leak the power from cylinder at high temperature conditions.
Suma said:
1 decade ago
Because when metal gets heated up, then the metal becomes soft and elongation takes place. So, clearance is necessary to valves. If there is no clearance, when the valve becomes hot there is no place to elongation and valve will be damaged.
Machaan said:
8 years ago
Rocker arm is not the valve tappet.
Simply valve tappet is the follower of the cam. Cam activate the valve tappet. Valve tappet activate the rocker arm push Road. Push rod moves The rocker arm. And Rocker arms control the valves.
Simply valve tappet is the follower of the cam. Cam activate the valve tappet. Valve tappet activate the rocker arm push Road. Push rod moves The rocker arm. And Rocker arms control the valves.
Mahadev said:
1 decade ago
After power stroke some of heat is passed through valves that continuous process make elongation of valves if we did did not give any clearance valves will get damaged then the proper opening of the valves becomes difficult.
Pravin said:
1 decade ago
Valve clearance is necessary for the protection of valve from damaging due to rapid heat which generates while combustion stroke. Due to heat, valve gets elongated. And the clearance will help the valve at this stage.
Pradeep GK said:
7 years ago
Tappet is basically a cup that creates a clean, secure seat for the valve stem and the valve return spring. It also provides a flat plane to smoothly follow the cam lobe.
Kishore samantaray said:
9 years ago
Agee @Mahadev.
Valve clearance is the gap between tappet surface and cam(opposite side of lobe). The gap is provided to ensure about the closing of the valve only.
Valve clearance is the gap between tappet surface and cam(opposite side of lobe). The gap is provided to ensure about the closing of the valve only.
Pankaj said:
9 years ago
The tappet is only a type of screw which is located on the rocker, By tappet screw adjustment we maintain a gap between valve and rocker.
Abhilash dubey said:
1 decade ago
Valve clearance is the difference in space between valve tappet and cam. Measured with the help of Filler gauge.
Suhail said:
5 years ago
The valve stem and rocker arm. It's called valve lash.
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