Internal-combustion engines – Poppet valve operating mechanism – Overhead camshaft
Patent
1996-07-19
1998-04-21
Lo, Weilun
Internal-combustion engines
Poppet valve operating mechanism
Overhead camshaft
123 9031, F02B 100, F01L 102
Patent
active
057407681
ABSTRACT:
A two-stage cam shaft drive arrangement for an internal combustion engine employing a pair of flexible transmitters. The two-stage mechanism is driven by an intermediate shaft that is driven off of the crankshaft at a point between its ends. Flexible transmitter tensioners are engaged with the flexible transmitters on the side away from the cylinder block for ease of accessibility and to maintain a more compact engine configuration.
REFERENCES:
patent: 4993374 (1991-02-01), Okui
patent: 5099945 (1992-03-01), Okui et al.
patent: 5154144 (1992-10-01), Okui et al.
patent: 5184582 (1993-02-01), Okui et al.
Niiyama Tatsuo
Sakurai Kenichi
Uchida Masahiro
Lo Weilun
Yamaha Hatsudoki Kubushiki Kaisha
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