Variable push rod

Details Variable push rod Variable push rod

1984-03-05

1986-07-29

Feinberg, Craig R.

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9063, F01L 134

Patent

active

046025979

ABSTRACT:
The present invention relates to push rods for an internal combustion engine and more particulary to a hydraulic push rod. A new and useful hydraulic push rod of which varies valve timing automatically, improves low end horsepower by altering valve opening and closing degrees, or points of opening in relationship to the crankshaft. While engine rpms increase, valve duration and overlap also increase automatically for a large flow of fuel at higher engine rpms. This novel device also improves fuel economy and smog pollutant emissions.

REFERENCES:
patent: 2739580 (1956-03-01), Brown
patent: 2878796 (1959-03-01), Mannerstedt
patent: 3109418 (1963-11-01), Exline et al.
patent: 3418983 (1968-12-01), Sossna
patent: 3963007 (1976-06-01), Baker

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