Internal-combustion engines – Cooling – Internal cooling of moving parts; e.g. – hollow valves,...
Reexamination Certificate
2008-01-29
2008-01-29
Kamen, Noah P. (Department: 3747)
Internal-combustion engines
Cooling
Internal cooling of moving parts; e.g., hollow valves,...
C123S1960CP
Reexamination Certificate
active
07322318
ABSTRACT:
An internal combustion engine is provided with an internal piston cooling system that jets oil from an oil jet onto a surface of a piston during engine operation, to effectively cool the piston. In the piston cooling system of the internal combustion engine, each piston being arranged to reciprocate in a cylinder bore of a cylinder block, and oil is jetted from individual oil jets to each piston, respectively. An oil reservoir is formed in a crankcase journal wall, that journals a crankshaft of the engine. In the crankcase, oil supply passages are provided for supplying oil from a hydraulic supply source to the oil reservoir, and in turn, oil is operatively supplied from the oil reservoir to the oil jets via a passageway.
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Kono Naoki
Minami Kohji
Nagahashi Yoshiki
Yoneyama Masaki
Blackman William D.
Carrier Joseph P.
Carrier Blackman & Associates P.C.
Honda Motor Co. Ltd.
Kamen Noah P.
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