Internal-combustion engines – Poppet valve operating mechanism – Rocker
Patent
1999-08-05
2000-03-14
Lo, Weilun
Internal-combustion engines
Poppet valve operating mechanism
Rocker
123 9042, 123 9044, 74519, 74559, F01L 118
Patent
active
060358203
ABSTRACT:
A rocker arm or finger lever (1) formed without machining (by a non-cutting shaping process) which has a U-shaped profile in cross section over almost its entire length which is open toward the top or the bottom, whereby the rocker arm or finger lever (1), in its end region in which it contacts a valve shaft end, is constructed double-walled.
This rocker arm or finger lever (1) is distinguished in that the double-walled section or at least a strap (13) projecting over the longitudinal extension of the rocker arm or finger lever (1) is formed on an upper wall (10) which is bent under and lies between its two side walls (11, 12).
A lever configured in this manner can be manufactured economically and has a good rigidity despite the reduced material used.
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Engelhardt Helmut
Mayer Wolfgang
Ina Walzlager Schaeffler OHG
Lo Weilun
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