Cylinder block for internal combustion engine

Details Cylinder block for internal combustion engine Cylinder block for internal combustion engine

1988-01-28

1989-07-11

Kamen, Noah P.

Internal-combustion engines

Cooling

With jacketed head and/or cylinder

123 4182R, F01P 302

Patent

active

048461164

ABSTRACT:
A water-cooled multi-cylinder internal combustion engine comprises a water jacket which extends deeper towards the crank case than conventional water jackets without increasing the width of the water jacket. As a result, the lubricating oil in the crank case is effectively cooled by the cooling water. Further, the narrower and deeper water jacket improves the overall cooling efficiency of the cylinder block and the reduced volume of the water jacket speeds up the warm-up of the engine. Casting of this cylinder block is made possible by providing projections at the bottom ends of the water jacket intermediate between adjacent cylinders. These projections facilitates the process of pulling out the core for defining the water jacket during the casting process from the water jacket of the cylinder block without causing any undue stress either to the core or to the cylinder block.

REFERENCES:
patent: 1410847 (1922-03-01), Still
patent: 2635592 (1953-04-01), Hollis
patent: 2681054 (1954-06-01), Boghossian
patent: 3744462 (1973-07-01), Herschmann et al.
patent: 3939807 (1976-02-01), Eichinger
patent: 4365593 (1982-12-01), Pomfret
patent: 4394850 (1983-07-01), Hayashi
patent: 4515112 (1985-05-01), Tsuchiya et al.
patent: 4616600 (1986-10-01), Hirano
patent: 4686943 (1987-08-01), Anno et al.

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