Cylinder block and head assembly for internal combustion engines

Details Cylinder block and head assembly for internal combustion engines Cylinder block and head assembly for internal combustion engines

1985-12-11

1987-08-04

Cuchlinski, Jr., William A.

Internal-combustion engines

Cooling

With jacketed head and/or cylinder

123 4182R, 277235B, F01P 302

Patent

active

046838449

ABSTRACT:
A cylinder block and head assembly for use in an internal combustion engine includes a closed-deck cylinder block having a deck and a water jacket, a cylinder head mounted on the deck and having a water jacket, and a gasket interposed between the cylinder block and the cylinder head. Communication passages are defined in the cylinder block, the cylinder head, and the gasket and provide communication between the water jackets in the cylinder block and the cylinder head. Recesses are defined adjacent to the communication passages and between the cylinder block and the cylinder head for increasing the pressure on the surfaces of the gasket between the cylinder block and the cylinder head through a reduction in the area of contact between the gasket surfaces and the cylinder block and head. In alternate embodiments the gasket or the cylinder block has holes providing communication between the recesses and the communication passages. Since the pressure on the gasket is increased per unit area, the gasket is highly effective in preventing a cooling liquid or oil from leaking out from between the cylinder block and the cylinder head.

REFERENCES:
patent: 4211205 (1980-07-01), Lockhart
patent: 4365593 (1982-12-01), Pomfret

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