Cylinder head having coolant flow guide device

Details Cylinder head having coolant flow guide device Cylinder head having coolant flow guide device

2006-10-19

2011-12-27

Cuff, Michael (Department: 3783)

Internal-combustion engines

Cooling

With jacketed head and/or cylinder

C123S041850, C123S193500

Reexamination Certificate

active

08082894

ABSTRACT:
The invention relates to a cylinder head (1) for a liquid-cooled internal combustion engine with several cylinders, comprising at least one intake port (5) and at least two exhaust ports (4) per cylinder (1), at least one first cooling chamber (2) adjacent to a fire deck and at least one second cooling chamber (3) adjacent to the first cooling chamber (2), with the second cooling chamber (3) extending over several cylinders. In order to improve cooling in the areas subjected to great thermal stress it is provided that at least one first cooling chamber (2) is provided per cylinder and the first cooling chambers (2) of two adjacent cylinders are separated from one another, with each first cooling chamber (2) comprising at least one first opening (7) and at least one transfer opening (8) to the second cooling chamber (3), and the first cooling chamber (2) is flowed through between the first opening (7) and the transfer opening (8) substantially in the longitudinal direction of the cylinder head (1).

REFERENCES:
patent: 4515111 (1985-05-01), Vosmeyer et al.
patent: 4569313 (1986-02-01), Nobu
patent: 5076217 (1991-12-01), Clough
patent: 5379729 (1995-01-01), Yonezwa et al.
patent: 5836272 (1998-11-01), Sakurai
patent: 5868106 (1999-02-01), Poropatic et al.
patent: 6681727 (2004-01-01), Krenn
patent: 1239135 (2002-09-01), None
patent: 583 652 (1946-12-01), None
patent: 2000-310157 (2000-07-01), None
patent: 2005042955 (2005-05-01), None
English Abstract of JP 2000-310157.

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