Internal-combustion engines – Poppet valve operating mechanism – Overhead camshaft
Patent
1998-10-15
2000-01-04
Lo, Weilun
Internal-combustion engines
Poppet valve operating mechanism
Overhead camshaft
123 9039, F01L 118, F01L 134
Patent
active
060098422
ABSTRACT:
In an arrangement for a variable control of the valves of an internal combustion engine having a cylinder head with two intake valves and one exhaust valve for each cylinder, a first cam shaft having an exhaust cam for actuating the exhaust valve and two intake valve opening cams arranged at opposite sides of the exhaust cam for opening the intake valves and a second camshaft which is phase adjustable with respect to the first camshaft and includes two intake valve closing cams operating an intake valve operating lever structure, the intake valve operating lever structure is U-shaped and has legs pivotally supported on an operating lever support shaft on which also an exhaust cam operating lever is pivotally supported between the legs of the U-shaped intake valve operating lever structure.
REFERENCES:
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patent: 4546735 (1985-10-01), O'Neal
patent: 4862845 (1989-09-01), Butterfield et al.
patent: 5052350 (1991-10-01), King
patent: 5178105 (1993-01-01), Norris
patent: 5431432 (1995-07-01), Kreuter et al.
patent: 5555860 (1996-09-01), Wride
patent: 5586527 (1996-12-01), Kreuter
patent: 5590906 (1997-01-01), Kreuter et al.
Bach Klaus J.
Daimler-Chrysler AG
Lo Weilun
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