Method of manufacturing an internal combustion engine cylinder h

Details Method of manufacturing an internal combustion engine cylinder h Method of manufacturing an internal combustion engine cylinder h

1977-09-22

1979-06-12

Hall, Carl E.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

295276, 164309, 164 63, B23P 1500, B23P 1300

Patent

active

041576071

ABSTRACT:
An internal combustion V-8 engine is disclosed having an aluminum semi-permanent mold head cast by a low-pressure die-cast process and an iron block cast by the evaporative casting method. The block and head have controlled thickness walls throughout to optimally lower the metal/working volume ratio of the engine. The block employs barrel cylinder walls cast integrally and unsupported except at the barrel ends and at a siamese connection between adjacent barrels; the barrels are maintained under a predetermined level of compression to eliminate fatigue failure and suppress sound. The block is sand cast and the head is totally formed with a three piece die and one sand core cluster, except for one passage which is drilled subsequent to casting. The engine is reduced in weight by at least 20% over conventional comparable engines; torque and horsepower is improved even though the cooling system capacity has been reduced to less than half that of a conventional cooling system.

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Wakefield, B. D., "Laser Right on the Beam for Heat Treating Duty", from Iron Age, Feb. 10, 1975, pp. 45-47.

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