Internal-combustion engines – Particular piston and enclosing cylinder construction – Cylinder head
Reexamination Certificate
2005-09-20
2005-09-20
McMahon, Marguerite (Department: 3747)
Internal-combustion engines
Particular piston and enclosing cylinder construction
Cylinder head
C123S0650PE
Reexamination Certificate
active
06945211
ABSTRACT:
In a cylinder head of an internal combustion engine, a plug hole for mounting an ignition plug is formed along a cylinder axis and an intake port and an exhaust port are respectively formed at both sides of the plug hole while sandwiching the cylinder axis therebetween. The cylinder head further includes an intake valve which opens or closes the intake port and an exhaust valve which opens or closes the exhaust port. In such a constitution, a cross-sectional shape of a flow passage of an outlet of the exhaust port is an oval shape extending in the horizontal direction and a water drain hole of the plug hole is formed below the exhaust port.
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patent: 2002-213334 (2002-07-01), None
Nagahashi Yoshiki
Nakagome Hiroshi
Hamre Schumann Mueller & Larson P.C.
Honda Motor Co, Ltd.
McMahon Marguerite
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