Mechanism for transmitting the movement of cams

Details Mechanism for transmitting the movement of cams Mechanism for transmitting the movement of cams

1999-08-09

2000-12-26

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 905, 74569, F01L 1300

Patent

active

061642568

ABSTRACT:
A cam follower mechanism for transmitting the movement of a three-dimensional cam to an intake valve. The cam operates a valve through a cam follower mechanism. A valve lifter includes a guide groove having an arcuate cross section. A cam follower is received in the guide groove and engages the cam. The cam follower can pivot about a pivoting axis. The cam follower has an arcuate cross section. The follower includes tapered surfaces, which are inclined less than ninety degrees with respect to the pivoting axis. Contact between the tapered surfaces and the guide groove prevents the cam follower from moving in the direction of the pivoting axis.

REFERENCES:
patent: 4517936 (1985-05-01), Burgio di Aragona
patent: 4693214 (1987-09-01), Titolo
patent: 5870984 (1999-02-01), Hasegawa et al.
patent: 5937811 (1999-08-01), Motosugi et al.
patent: 5988127 (1999-11-01), Hasegawa et al.
patent: 5988128 (1999-11-01), Moriya et al.
Titolo, A., "The Variable Valve Timing System-Application on a V8 Engine," 1991, pp. 8-15.

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