Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Patent
1995-11-20
1996-08-27
Lo, Weilun
Internal-combustion engines
Poppet valve operating mechanism
With means for varying timing
123 9039, F01L 118, F02D 1302
Patent
active
055490816
ABSTRACT:
In an arrangement for operating valves of an internal combustion engine by means of at least two operating members for opening and closing each valve and a camshaft with cams having base portions and camming portions for operating the operating members wherein the operating members for a valve are disposed in side-by-side relation and have guide bores which are aligned when the operating members are disposed on the base portions of the cams and a coupling pin is movable in the guide bores and couples the adjacent operating arms when disposed so as to extend thereacross for movement of said adjacent operating members in unison, the coupling pin is barrel-shaped wife tapered end sections and a center section of a larger diameter which, with the guide bores of the adjacent operating members, forms a cylindrical fit with a clearance of 1-60 .mu.m.
REFERENCES:
patent: 4768475 (1988-09-01), Ikemura
patent: 4911112 (1990-03-01), Oikawa et al.
patent: 4926804 (1990-05-01), Fukuo
patent: 5042437 (1991-08-01), Sakuragi et al.
patent: 5207193 (1993-05-01), Sugimoto et al.
patent: 5301636 (1994-04-01), Nakamura
Aust Rainer
Ohlendorf Rolf
Strauber Hans-Jurgen
Strobel Wolfgang
Bach Klaus J.
Lo Weilun
Mercedes-Benz AG
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