公开(公告)号：EP0987426A3

公开(公告)日：2000-12-06

申请号：EP99118234.6

申请日：1999-09-14

申请人： CUMMINS ENGINE COMPANY, INC.

发明人： Warwick, Michael J. ,  Myers, Martin R. ,  Yong Ching Chen ,  Becker, Paul C. ,  Belush, Richard

IPC分类号： F02F7/00 ,  F16C9/02

CPC分类号： F16M1/025 ,  F02F7/0053 ,  F05C2201/021 ,  F05C2201/0436 ,  F05C2201/0439 ,  F05C2251/042 ,  F16C9/02

摘要： A reinforcing insert for an engine block (10) formed of an engine block material is provided which is positioned in the bearing saddle area of the block for increasing the strength and stiffness of the bearing saddle area to ensure a secure connection of the main bearing cap throughout engine operation thereby ensuring proper crankshaft support and operation. The reinforcing insert (12) is formed of a material having a higher modulus of elasticity than a modulus of elasticity of the engine block material. The insert includes a lower transverse surface for positioning at a lowermost position in the engine block, an upper surface (36) positioned farthest from the crankshaft, a first and second linear side surfaces (18a,18b) for positioning on opposite sides of the crankshaft. The linear sides extend from the lower surface (22) along respective planes in nonparallel relation to each other. The linear sides may extend either in a converging or a diverging manner from the lower surface. Alternatively, the insert may include two cylindrical inserts positioned in bores formed in the block on opposite sides of the crankshaft. These insert designs provide strengthening and stiffening of the block over an optimum area while permitting secure attachment of a main bearing cap to the block.

公开(公告)号：EP0987426A2

公开(公告)日：2000-03-22

申请号：EP99118234.6

申请日：1999-09-14

申请人： CUMMINS ENGINE COMPANY, INC.

发明人： Warwick, Michael J. ,  Myers, Martin R. ,  Yong Ching Chen ,  Becker, Paul C. ,  Belush, Richard

IPC分类号： F02F7/00

CPC分类号： F16M1/025 ,  F02F7/0053 ,  F05C2201/021 ,  F05C2201/0436 ,  F05C2201/0439 ,  F05C2251/042 ,  F16C9/02

摘要： A reinforcing insert for an engine block (10) formed of an engine block material is provided which is positioned in the bearing saddle area of the block for increasing the strength and stiffness of the bearing saddle area to ensure a secure connection of the main bearing cap throughout engine operation thereby ensuring proper crankshaft support and operation. The reinforcing insert (12) is formed of a material having a higher modulus of elasticity than a modulus of elasticity of the engine block material. The insert includes a lower transverse surface for positioning at a lowermost position in the engine block, an upper surface (36) positioned farthest from the crankshaft, a first and second linear side surfaces (18a,18b) for positioning on opposite sides of the crankshaft. The linear sides extend from the lower surface (22) along respective planes in nonparallel relation to each other. The linear sides may extend either in a converging or a diverging manner from the lower surface. Alternatively, the insert may include two cylindrical inserts positioned in bores formed in the block on opposite sides of the crankshaft. These insert designs provide strengthening and stiffening of the block over an optimum area while permitting secure attachment of a main bearing cap to the block.

摘要翻译： 提供了一种用于由发动机缸体材料形成的发动机缸体（10）的加强插入件，该加强插入件定位在缸体的轴承鞍座区域中，用于增加轴承鞍座区域的强度和刚度，以确保主轴承盖 贯穿发动机运转，从而确保适当的曲轴支撑和操作。 加强插入件（12）由具有比发动机缸体材料的弹性模量更高的弹性模量的材料形成。 所述插入件包括用于定位在所述发动机缸体中的最低位置处的下横向表面，位于离所述曲轴最远的上表面（36），用于定位在所述曲轴的相对侧上的第一直线侧表面和第二直线侧表面（18a，18b） 。 线性侧面从下表面（22）沿着各自的平面以彼此不平行的关系延伸。 线性侧面可以从下表面以会聚或发散的方式延伸。 或者，插入件可以包括两个圆柱形插入件，该两个圆柱形插入件定位在曲轴的相对侧上的在块中形成的孔中。 这些刀片设计可以在最佳区域内加固和加固块体，同时允许将主轴承盖牢固连接到块体上。