Cylinder block and a process for casting the same

Details Cylinder block and a process for casting the same Cylinder block and a process for casting the same

F - Mech Eng,Light,Heat,Weapons

16

J

F16J 10/04 (2006.01) B22D 19/00 (2006.01) F02F 1/10 (2006.01) F02F 1/16 (2006.01) F02F 7/00 (2006.01) F02B 75/18 (2006.01)

Patent

CA 2087622

A cylinder block comprising a cylinder block body and a cylinder liner block filled in the cylinder block body in a cast-in manner. The cylinder liner block is formed from a material having a rigidity larger than that of the cylinder block body, and the cylinder liner block comprises a liner section filled in a cylinder barrel portion of the cylinder block body in a cast-in manner, and a reinforcing wall section filled in a bearing wall of a crank case portion of the cylinder block body in a cast-in manner. Thus, it is possible to increase the wear resistance of cylinders in the cylinder block, as well as to provide an increase in performance by reductions in vibration and noise of the cylinder block, and to provide reductions in size, weight and cost of the cylinder block by a reduction in thickness of the bearing walls.

Bloc-cylindres constitué d'un corps à l'intérieur duquel une doublure est noyée en cours de moulage. La doublure, qui est composée d'un matériau dont la rigidité est supérieure à celle du bloc-cylindres, a une de ses parties noyée dans le voisinage des alésages des cylindres et une autre partie servant de paroi de renforcement qui est noyée dans la portion du bloc-cylindres qui se trouve au voisinage immédiat du carter. En plus d'accroître la résistance à l'usure des cylindres du bloc-cylindres et d'en augmenter le rendement en diminuant le niveau des vibrations et du bruit du bloc-cylindres, l'insertion de cette doublure permet de réduire les dimensions, le poids ainsi que le coût du bloc-cylindres en permettant une réduction de l'épaisseur de ses parois porteuses.

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