Valve mechanism for at least two simultaneously actuable valves

Details Valve mechanism for at least two simultaneously actuable valves Valve mechanism for at least two simultaneously actuable valves

1987-07-10

1989-02-21

Dolinar, Andrew M.

Internal-combustion engines

Poppet valve operating mechanism

Plural valve trains, single actuator

123 9028, 123 9048, 123 9055, F01L 126

Patent

active

048055670

ABSTRACT:
A pair of adjacent valves (intake or exhaust) are operated by a single cam lobe on an engine camshaft via a bucket tappet, the arrangement being such that both the bucket tappet and the valves are rotatable during engine operation to reduce wear thereof. Preferably, a hydraulic lash adjuster is operatively associated with the bucket tappet and with a thrust member engaging the free stem ends of the valves.

REFERENCES:
patent: 2925808 (1960-02-01), Baumann
patent: 3712277 (1973-01-01), Piatti
patent: 4007716 (1977-02-01), Jones

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