Patent ID: 7204223

Claim:
A structure of a cylinder block in an engine, comprising: the cylinder block having a number of cylinders; a plurality of bearing caps supporting a crankshaft along with said cylinder block; a plurality of bearing cap beams, disposed beneath said cylinder block, each of the plurality of bearing cap beams supporting respective one of said plurality of bearing caps; a number of cap bolts penetrating into the cylinder block for fastening said plurality of bearing caps and said plurality of bearing cap beams to said cylinder block; a number of beam bolts fixing said plurality of bearing cap beams to a skirt portion of said cylinder block; a plurality of baffles, each baffle disposed between each adjacent pair of said plurality of bearing cap beams and supporting said plurality of bearing caps via said plurality of bearing cap beams, each of the plurality of baffles protruding from said bearing cap beams and curves so as to have a regular clearance along a rotation path of the crankshaft; and a number of vertical walls engaging said bearing cap beams with said baffles in a vertical direction.