摘要：The current cam and follower mechanism in four stroke internal combustion engine employs a flat follower. In this work an attempt is made to change the flat face of follower to a curved face follower, so that the required point contact can be achieved. As line contact between existing cam and follower mechanism results in high frictional losses which results in low mechanical efficiency. It is observed that the frequency of vibration in the existing and modified cam and follower mechanism remains almost same. The finite element approach is used to perform the analysis.

摘要：The results of comparative DC simulation tests confirm that a proposed modification to the feedback circuit of a Flipped Voltage follower (FVF), to produce a type of ‘Folded’ Flipped Voltage follower (FFVF), is capable of maximising the linear DC operating range for given values of supply rail voltage and operating current.