Internal-combustion engines – Poppet valve operating mechanism – Camshaft drive means
Patent
1990-07-02
1991-05-14
Wolfe, Willis R.
Internal-combustion engines
Poppet valve operating mechanism
Camshaft drive means
123 9027, F01L 104, F01L 134, F02B 7522
Patent
active
050146556
ABSTRACT:
For actuating the inlet and outlet valves, two parallel overhead camshafts respectively are assigned to the two cylinder banks of a multi-cylinder V-engine and are driven by an intermediate timing gear by means of chain drives. The intermediate timing gear is driven by the crankshaft by means of gear wheels. The camshaft drive is arranged between the end bearing of the crankshaft and the flywheel.
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Dr. Ing. h.c.F. Porsche AG
Lo Weilun
Wolfe Willis R.
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