Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Patent
1995-05-11
1996-06-11
Lo, Weilun
Internal-combustion engines
Poppet valve operating mechanism
With means for varying timing
123 9044, 123198F, 74519, 74559, F01L 118, F01L 1300, F02D 1306, G05G 104
Patent
active
055245803
ABSTRACT:
An adjusting mechanism for a valve control system of the type which includes a first rocker arm engageable with a poppet valve, a second rocker arm mounted for pivotal movement relative to the first rocker arm and engageable with a cam lobe, means for selectively interconnecting the rocker arms, and means biasing the first rocker arm into engagement with the valve and the second rocker arm into engagement with the cam lobe, wherein the adjusting mechanism limits the extent of relative pivoted movement between the rocker arms. In a preferred embodiment the biasing means is a compression spring acting between the first and second rocker arms and the adjusting mechanism includes a threaded member coaxial with the spring and acting on the arms to control the spacing of the arms along the axis of the spring.
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patent: 5183015 (1993-02-01), Morita et al.
Eaton Corporation
Lo Weilun
Sajovec Frank M.
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