Mechanical Engineering - Automobile Engineering - Discussion
Discussion Forum : Automobile Engineering - Section 5 (Q.No. 4)
4.
The camshaft of a four stroke Diesel engine running at 1000 rpm will run at
Discussion:
10 comments Page 1 of 1.
Atul Kumar said:
7 years ago
Crankshaft should rotate 2 times for 1 rotation of cam shaft
(4 strokes = suction --- input valve open >>>> compression --- one rotation of crank shaft completed >>>> Power stroke >>>> exhaust stroke --- output valve open ----- two rotations completed of crank shaft).
Therefore, camshaft operated one time for each valve (input and output valve) during two rotations of the crankshaft.
Hence, for 1000 rpm the camshaft must rotate 500 rpm.
(4 strokes = suction --- input valve open >>>> compression --- one rotation of crank shaft completed >>>> Power stroke >>>> exhaust stroke --- output valve open ----- two rotations completed of crank shaft).
Therefore, camshaft operated one time for each valve (input and output valve) during two rotations of the crankshaft.
Hence, for 1000 rpm the camshaft must rotate 500 rpm.
(2)
Netrapalsinghsolanki said:
8 years ago
Cam shaft round *2 = Crank shaft round.
1000*2 = x.
2000 answer.
1000*2 = x.
2000 answer.
(1)
Manik( Bagha, Rajshahi) said:
1 decade ago
For four stroke engine: N/2 = 1000/2 = 500.
Deepthi said:
1 decade ago
Then what about 2-stroke engine?
Hitesh Daka said:
1 decade ago
For Two stroke engine: N = 1000 = 100.
Each stroke give power stroke.
Each stroke give power stroke.
Vipin pt said:
9 years ago
2 stroke N = n.
Tafete said:
8 years ago
What about brake power?
Ahsan Gulzar said:
7 years ago
Because the engine is a four stroke the camshaft will rotate at the half the speed of the crankshaft that means that valve and fule pump will operate once for every two revolution of the crankshaft.
Akki said:
6 years ago
1Camshaft revolution = 2cranckshaft revolution
1 rpm Engine speed = 2 crankshaft revolution
Then,
1 camshaft revo = 1rpm so answer = 1000rpm.
Right?
1 rpm Engine speed = 2 crankshaft revolution
Then,
1 camshaft revo = 1rpm so answer = 1000rpm.
Right?
Shubham Agarwal said:
4 years ago
Thanks @Ashan @Gulzar.
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