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发明公开
CN104428508A 内燃发动机的活塞 无效 - 撤回

内燃发动机的活塞
摘要：
本发明涉及内燃发动机的活塞(1)和活塞用于具有外部混合物形成的奥托发动机的用途。活塞套筒(1.1)可具有中心轴线M，和在顶部界定所述活塞套筒(1.1)的具有直径D的活塞基部(2)。所述活塞基部(2)可由具有宽度b的活塞基部边沿部(2.1)和具有深度t的活塞碗(2.2)形成。所述活塞碗(2.2)可被设计成罐状碗，并且具有活塞碗基部(3)和毗邻该活塞碗基部的具有最大直径d4的活塞碗壁(4)。所述活塞碗(2.2)可具有开口截面A，该开口截面关于所述中心轴线M对称并具有比所述直径d4小的直径da。藉由减小的直径da，可在所述开口截面A的区域内形成设计成鼻状部的截流边缘部(5)。所述鼻状部(5)可在所述活塞碗壁(4)上沿径向向内突出。
摘要（英）：

The present disclosure relates to a piston (1) of an internal combustion engine and a use thereof for an Otto engine with external mixture formation. A piston sleeve (1.1) may have a centre axis M, and a piston base (2) with a diameter D delimiting the piston sleeve (1.1) at the top. The piston base (2) may be formed from a piston base rim (2.1) of width b and a piston bowl (2.2) with a depth t. The piston bowl (2.2) may be designed as a pot bowl and has a piston bowl base (3) as well as a piston bowl wall (4) with a maximum diameter d4 adjoining same. The piston bowl (2.2) may have an opening cross-section A which is aligned symmetrically relative to the centre axis M and has a minimum diameter d4 which is smaller than the diameter d4. Through the reduced diameter d4 a flow cut-off edge (5) designed as a nose may be formed in the region of the opening cross-section A. The nose (5) may project in the radial direction inwards over the piston bowl wall (4).

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