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    • 2. 发明申请
    • CAST LIGHT METAL PISTON FOR A TWO-STROKE ENGINE
    • 铸造合金活塞机2冲程发动机
    • WO9714880A2
    • 1997-04-24
    • PCT/DE9601937
    • 1996-10-10
    • MAHLE GMBHULRICH REINERSCHMIDT JOACHIMBUSCHKAMP UDO
    • ULRICH REINERSCHMIDT JOACHIMBUSCHKAMP UDO
    • F02B75/02F02F3/24F02F3/00
    • F02F3/24F02B2075/025
    • The invention concerns a cast light metal piston of box-type construction for a two-stroke engine having optimum values as concerns casting properties, piston cooling, weight reduction, low noise and mixture transfer. To this end, the piston according to the invention comprises a combination of the following features: the piston blank comprises only one lug in the region of one piston shaft side (3); the wall section (6) connecting the piston shaft (3) to the gudgeon-pin boss (4) has a window-like recess (8) on the lug side; the wall section (7) connecting the piston shaft (3) to the gudgeon-pin boss (4) and remote from the lug side is closed; and the closed wall section (7) is raised upwards (10) relative to the shaft length from the open shaft end (9).
    • 为了获得相对倾倒性,活塞冷却,重量减少,噪音和混合物溢出在盒设计的铸造轻金属活塞用于2冲程发动机的最佳值,这是在组合具有以下特征:所述活塞空白仅具有一个栅极中的活塞轴侧的区域(3) 上; 活塞轴(3)与活塞销(4)的连接壁部分(6)上的栅极侧设置有窗状的凹部(8); 活塞轴(3)与活塞销(4)远离(7)由所述Augussseite壁部连接封闭; 封闭壁部分(7)相对于从所述轴(9)的开口端的轴的长度来回向上拉(10)。