B - Operations – Transporting – 22 – C
Patent
B - Operations, Transporting
22
C
22/144, 22/162,
B22C 7/00 (2006.01) B22C 7/02 (2006.01) B22C 9/04 (2006.01) B22D 15/02 (2006.01) F02F 7/00 (2006.01) F02B 75/18 (2006.01)
Patent
CA 1337734
A foam pattern assembly for use in forming an engine block in a lost foam casting process, the pattern assembly comprising a base portion including a generally planar front mounting surface having therein a plurality of crankcase-defining cavities and a plurality of intake ports, and a rear mounting surface spaced from the front mounting surface, the base portion partially defining a plurality of transfer passages and a plurality of air intake passages each communicating between a respective one of the intake ports and a respective one of the transfer passages, and a cylinder portion including a generally planar front mounting surface mating with the rear mounting surface on the base portion, the cylinder portion partially defining the air intake passages and partially defining a plurality of cylinder bores each communicating with a respective one of the transfer passages.
612463
Outboard Marine Corporation
Smart & Biggar
LandOfFree
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