Rocker arm or finger lever formed by a chipless process

Internal-combustion engines – Poppet valve operating mechanism – Rocker

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Details

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.

REFERENCES:
patent: 1699657 (1929-01-01), Fagan
patent: 3592174 (1971-07-01), Heidacker
patent: 4430783 (1984-02-01), Wherry
patent: 4614171 (1986-09-01), Malhotra
patent: 4628874 (1986-12-01), Barlow
patent: 5010857 (1991-04-01), Hempelmann et al.
patent: 5016582 (1991-05-01), Mills
patent: 5357917 (1994-10-01), Everts
patent: 5582142 (1996-12-01), Neubrander
patent: 5799546 (1998-09-01), Pryba
patent: 5819694 (1998-10-01), Trutescu et al.

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