CAST LIGHT METAL PISTON FOR A TWO-STROKE ENGINE

摘要

PCT No. PCT/DE96/01937 Sec. 371 Date Mar. 31, 1998 Sec. 102(e) Date Mar. 31, 1998 PCT Filed Oct. 10, 1996 PCT Pub. No. WO97/14880 PCT Pub. Date Apr. 24, 1997A cast light metal piston of box-type construction for a two-stroke engine, comprising a piston blank having a gudgeon pin boss molded on a bottom section of the piston blank and a piston shaft having an open end and being connected to the gudgeon pin boss via approximately straight wall sections. There is only one lug disposed on only one side of the piston shaft. The wall section connecting the piston shaft with the gudgeon pin boss near the lug has a window-like recess. The wall section connecting the piston shaft with the gudgeon pin boss remote from the lug is closed and is raised upwardly with respect to the length of the shaft beginning from the open end of the shaft.