A Piston Assembly In An Internal Combustion Engine

A piston assembly 10 in an internal combustion engine 50 is disclosed. The piston assembly 10 comprises an outer casing 12 and a piston 22 movably placed in the outer casing 12. The piston assembly 10 comprises a solenoid 20 mounted on the piston 22 and a chamber 14 formed between the solenoid 20 and the outer casing 12. The chamber 14 adapted to be filled with a fluid 18. The piston assembly 10 comprises an insulating material 16 attached to a portion of the outer casing 12 wherein the portion of the outer casing 12 comprises a part of the chamber 14. The piston assembly 10 comprises a spring 26 connected between a part of the outer casing 20 and a part of the piston 12 and at least two wires 36 passing through the piston 22 are connected to the solenoid 20. Figure 1.