Mechanical Engineering - Automobile Engineering - Discussion
Discussion Forum : Automobile Engineering - Section 1 (Q.No. 46)
46.
The valve overlap in four stroke petrol engines is approximately
Discussion:
11 comments Page 1 of 2.
Sanjeev said:
5 years ago
Both valves are open in sametime ending of exhaust stroke and beginning of a suction stroke.
Nikunj Patel said:
5 years ago
It's the period at which both valves remain open. Overlapping means that both valve are open in same timing.
Soni Deep S said:
5 years ago
Overlapping means that both valve are open in same timing.
Sathi said:
7 years ago
Overlapping means, End of exhaust stroke and start of suction stroke is max 30 degree.
Saurav said:
7 years ago
Overlapping means, when both intake and exhaust valves are open.
Ajinkya said:
9 years ago
End of exhaust stroke and start of suction stroke is max 15 degree.
(1)
Sivam said:
10 years ago
So inlet and exhaust valves are opening at same interval that is called valve overlapping it is denoted to valve timing diagram.
Hariharan said:
10 years ago
Overlap happens at ending of the exhaust stroke and beginning of suction stroke.
Mars said:
10 years ago
When the valve remains open for a short period is what we term valve overlap at these point the valves opens at 30 degrees.
NII JNR said:
10 years ago
It's the period at which both valves remain open.
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