Improvements in thermal motor vehicles, especially light metal stamps (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in pistons for thermal engines, especially light metal pistons, essentially characterized by the fact that the bottom edge of the piston is reinforced above the compression segments by one or more protection segments composed of a material whose coefficient of dilation by heat is similar to that of the material used in the manufacture of the cylinder and in that they do not have any joint groove in their periphery. (Machine-translation by Google Translate, not legally binding)