Add-on heavy-duty valve-closing device for high-performance raci

Details Add-on heavy-duty valve-closing device for high-performance raci Add-on heavy-duty valve-closing device for high-performance raci

1980-03-14

1982-01-05

Feinberg, Craig R.

Internal-combustion engines

Poppet valve operating mechanism

Rocker

123 9038, 123 9045, 123 9065, 123 9024, F01L 130

Patent

active

043088287

ABSTRACT:
To greatly increase the size and thus the strength and life of the valve-closing spring of a high-performance (e.g. automobile-racing) engine, a rocker arm is employed to couple the much larger remotely located spring to the valve stem, from which was removed the smaller short-lived spring for which the much larger spring is substituted. The rocker arm and the substituted large spring are mounted on a base plate attachable to the engine-head assembly, and a cover shell is made removable for access to the parts, which include an adjustable-length spring-pressure-adjusting hold-down device.

REFERENCES:
patent: 1395851 (1921-11-01), McLean
patent: 1902696 (1933-03-01), Elmer
patent: 2041539 (1936-05-01), Gaultier
patent: 2398206 (1946-04-01), Chilton
patent: 2827888 (1958-03-01), Chadwell

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