Piston for stroke piston engine - has honeycomb support structure inside piston sleeve to strengthen lightweight structure

摘要

The inside of the piston sleeve body (5) is filled up by a support body (7) comprising a honeycomb structure of sheet metal plates with a central cavity corresponding to the shape of the connecting rod eye and open to the side of the connecting rod. The hollow cavity is adjoined on both sides by the piston bolt sockets which are let into the support body across a longitudinal axis of the piston. The support body (7) is preferably made up of several plate arms (11) set parallel to each other in the direction of the longitudinal axis of the piston whereby reinforcement plates (12) running in wavy formation are placed between the plate arms whereby their bending edges (13) are connected to the retaining plates (11). ADVANTAGE - Although lightweight the piston has great strength and stability.