Cooling water passage structure of cylinder head

Details Cooling water passage structure of cylinder head Cooling water passage structure of cylinder head

2011-07-19

2011-07-19

Cuff, Michael (Department: 3783)

Internal-combustion engines

Cooling

With jacketed head and/or cylinder

C123S193500, C060S320000

Reexamination Certificate

active

07980206

ABSTRACT:
In an internal combustion engine, one end of a cylinder head (1) in a longitudinal direction is provided with a cooling water inflow port (19) leading to the inside of the cylinder head (1), while the other end of the cylinder head (1) in the longitudinal direction is provided with an outflow port (20) of main cooling water flow (X) flowing through the center inside the cylinder head (1). Further, an outflow port (21) of sub cooling water flows (Y) branched from the main cooling water flow (X) and flowing around the merged part of the exhaust port (5) is provided. An adapter (23) communicated with the main cooling water outlet (20) and sub cooling water outlet (21) and combining these outflow ports (20, 21) into a single cooling water outlet (22) is fixed to the outer wall surface of the cylinder head (1).

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