Internal-combustion engines – Starting device – Mechanical
Reexamination Certificate
2011-07-19
2011-07-19
Moulis, Thomas N (Department: 3747)
Internal-combustion engines
Starting device
Mechanical
C123S1950HC, C123S406580, C123S612000, C123S617000, C417S223000, C417S319000, C464S103000
Reexamination Certificate
active
07980218
ABSTRACT:
In a pump driving device in an engine, driving a pump shaft of a pump mounted to an engine body by a valve-operating cam shaft supported by the engine body, a bolt is threadedly engaged with one end of the cam shaft, the bolt having a head portion in which a polygonal hole is formed, and a polygonal shaft portion is formed at one end of the pump shaft so as to be fitted into the polygonal hole. The pump shaft is driven by the cam shaft via the polygonal hole and the polygonal shaft portion. Thus, a large driving torque can be transmitted from the cam shaft to the pump shaft without reducing any effective support surface of a journal portion of the cam shaft.
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Arent & Fox LLP
Honda Motor Co. Ltd.
Moulis Thomas N
Najmuddin Raza
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