CYLINDER HEAD FOR INTERNAL COMBUSTION ENGINE

Title:

CYLINDER HEAD FOR INTERNAL COMBUSTION ENGINE

Document Type and Number:

WIPO Patent Application WO/2022/003753

Kind Code:

A1

Abstract:

A first water jacket (12) has a plurality of first cooling-water inlets (16) at the center thereof and has two first cooling-water outlets (17) at a cylinder-head side where an exhaust part is attached. The space between the first cooling-water outlets (17), which are located at both sides in a cylinder-row direction, is wider than the space between the first cooling-water inlets, among the first cooling-water inlets (16), that are located at both sides in the cylinder-row direction. First female threads (19) are formed so as to protrude into the first water jacket (12) and so as to be located at an inner side of the two first cooling-water outlets (17) in the cylinder-row direction. Bulging parts (21) that extend from distal ends of the first female threads (19) toward a side where the first cooling-water inlets (16) are located are formed in a cylinder head (11) so as to protrude into the first water jacket (12).

Inventors:

OTA JUN (JP)
NETSU HIRONAO (JP)

Application Number:

PCT/JP2020/025448

Publication Date:

January 06, 2022

Filing Date:

June 29, 2020

Export Citation:

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Assignee:

NISSAN MOTOR (JP)

International Classes:

F02F1/36

Foreign References:

JP2009115031A	2009-05-28
JP2017193970A	2017-10-26
JP2002070642A	2002-03-08
JP2005188351A	2005-07-14
JP2017190674A	2017-10-19
JP2000161129A	2000-06-13

Other References: