Reinforcement of engine blocks

Details Reinforcement of engine blocks Reinforcement of engine blocks

F - Mech Eng,Light,Heat,Weapons

02

F

123/255

F02F 7/00 (2006.01) F02B 1/04 (2006.01) F02B 3/06 (2006.01)

Patent

CA 1235967

ABSTRACT OF THE DISCLOSURE The problem of cracking in scantlings of aluminium or aluminium alloy engine blocks by direct and torsional forces applied thereto by a crankshaft is mitigated by casting, into the scantlings, reinforcements of a ferrous material. Each reinforcement includes threaded bosses for receiving the bolts which hold an associated cap onto the scantling and also flat elongate members which extend into the scantling. Since the threads are of a ferrous material, they are more resistant to damage than similar threads of aluminium or aluminium alloy and the elongate membrs spread the loading throughout the scantling, so reducing the tendency of these loads to crack the scantling. This technique can be of particular benefit where an engine is being modified in a way which produces increased stresses; for example where a petrol engine is being converted for use as a diesel engine.

469741

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