Cylinder head
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United States of America Patent
Stats
-
May 19, 2020
Grant Date -
Jun 27, 2019
app pub date -
Dec 4, 2018
filing date -
Dec 22, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A cylinder head comprises a cylinder head body. The cylinder head body has two intake ports placed on a first side of the cylinder head body with respect to the plug hole, and the two exhaust ports placed on a second side of the cylinder head body with respect to the plug hole. A water jacket of the cylinder head includes: an intake-port-to-intake-port passage portion communicating with the outside of the cylinder head and extending between the two intake ports; an exhaust-port-to-exhaust-port passage portion communicating with the outside of the cylinder head and extending between the two exhaust ports; and a central passage portion communicating with the intake-port-to-intake-port passage portion and the exhaust-port-to-exhaust-port passage portion, the central passage portion being formed so as to surround the plug hole.
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