Spring assist system for internal combustion engine valves

Details Spring assist system for internal combustion engine valves Spring assist system for internal combustion engine valves

1993-02-04

1993-09-21

Wolfe, Willis R.

Internal-combustion engines

Poppet valve operating mechanism

Valve driven closed

123 9065, F01L 130

Patent

active

052459578

ABSTRACT:
A spring assembly for positively urging inlet and exhaust valves of a internal combustion engine into both open and closed positioned wherein the spring assembly includes an engaging member which is biased alternatively in both directions relative to the elongated axis of the stem of each valve by a spring member which is oriented generally perpendicular with respect to the valve stem and which engaging member is engagable within a groove or detent formed in the valve stem.

REFERENCES:
patent: 1789209 (1931-01-01), Asbury
patent: 2641236 (1953-06-01), Mansfield
patent: 2689557 (1954-09-01), Taylor
patent: 3066659 (1962-12-01), Colton
patent: 3289658 (1966-12-01), Surovek, Sr.
patent: 3556062 (1971-01-01), Shermeister
patent: 4380216 (1983-04-01), Kandler et al.
patent: 4457268 (1984-07-01), Jones

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