1. First the exhaust gases and sound energy flows through the exhaust manifold and then through the exhaust pipe.
2. The sound energy is extracted with the help of the technology developed by south Korean Utah scientist, which is of drilling small holes in the pipe and covering the inside part of the pipe with thin heat resistant polymer.
3. Theoretically Almost 90% of the sound energy is extracted from the pipe on the first bend but to be on the safer side we are assuming 60-70% sound extraction, hence we will be extracting sound on two more turns.
4. This sound energy which is extracted is then vulnerable to the outside atmosphere and its damping properties. Hence it needs to be accumulated and focused on the diaphragm.
5. These sound waves when focused on the diaphragm set it into vibration.
6. These vibrations are transferred from the centre point of the diaphragm to the piezoelectric crystal trough a rigid link.
7. The piezoelectric is held rigidly at the ends by the help of four arms which are fixed at the frame of the diaphragm.
8. Hence the piezoelectric crystal with the help of piezoelectric effect converts the strain exerted on the crystal into electric current.
9. This electric current is then stored with the help of a capacitor.