Mechanical Engineering - Theory of machines - Discussion
Discussion Forum : Theory of machines - Section 2 (Q.No. 15)
15.
In a four stroke I.C. engine, the turning moment during the compression stroke is
Discussion:
7 comments Page 1 of 1.
Ganeshr said:
5 years ago
Suction stroke divided into two-part.
Initially for 90° it is -ve.
Next for 90° it is +ve.
Compression stroke starts at 180° & finish at 360° & this it is negative throughout the turning moment diagram below the mean line.
During the expansion or working stroke, the fuel burns and the gases expand, therefore a large positive loop is obtained from 360-540°
During the exhaust stroke, the work is done on the gases, therefore a negative loop is formed.
Initially for 90° it is -ve.
Next for 90° it is +ve.
Compression stroke starts at 180° & finish at 360° & this it is negative throughout the turning moment diagram below the mean line.
During the expansion or working stroke, the fuel burns and the gases expand, therefore a large positive loop is obtained from 360-540°
During the exhaust stroke, the work is done on the gases, therefore a negative loop is formed.
(1)
Shiva said:
5 years ago
I think in the compression stroke (360/2) =180.
Out of Two stroke (760).
Out of Two stroke (760).
Shiva said:
5 years ago
I'm not getting, please anyone explain.
Deeksha mishra said:
8 years ago
I am not getting this, please elaborate it.
Santosh k said:
8 years ago
It is the turn of compression stroke 180 degree out of 720 degrees.
Rameshwar said:
8 years ago
What is turning moment? Can anyone tell, please?
Prakash bharati said:
9 years ago
It is negative throughout the 4 stroke except in the expansion or power stroke. In the power stroke it is positive.
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