Engine cylinder head

Details Engine cylinder head Engine cylinder head

1998-10-21

2000-02-15

Kamen, Noah P.

Internal-combustion engines

Cooling

With jacketed head and/or cylinder

1231935, 1231933, F02F 138

Patent

active

060240571

ABSTRACT:
A pair of intake ports and a pair of exhaust ports corresponding to respective cylinders in a multi-cylinder engine are formed in a cylinder head. A water jacket is formed which recirculates cooling water around the ports in the cylinder head. A side wall of the intake port of one cylinder and a side wall of the exhaust port of another cylinder adjacent to the first cylinder, are connected by a rib formed on the base surface of the water jacket. The rib cuts transversely across a straight line joining the centers of the two cylinders. In this way, the rigidity of the cylinder head is increased, seal tightness of a join between the cylinder head and a cylinder block is improved, and the cooling water in the water jacket is recirculated around the exhaust ports which bear high thermal load.

REFERENCES:
patent: 4860700 (1989-08-01), Smith
patent: 4889079 (1989-12-01), Takeda et al.
patent: 5743218 (1998-04-01), Aupperle et al.

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