Rotary valve timing apparatus

Details Rotary valve timing apparatus Rotary valve timing apparatus

1975-11-26

1979-08-07

Myhre, Charles J.

Internal-combustion engines

Valve

Rotary

123 80R, 123190R, 13762417, F01L 700

Patent

active

041634381

ABSTRACT:
A rotary valve system for an internal combustion engine is disclosed. Through the provision of an axially movable valve rotor, the system is capable of variable valve opening duration and timing. Ports in the rotor or in the rotor housing, or both, have edges inclined with respect to the axis of the rotor, so that relative axial movement of the rotor and housing ports effects a change in the timing of valve opening and closing. Valve opening duration is also varied. An actuator system which controls the axial translation of the rotor during operation of the engine considers factors affecting engine performance such as engine speed, road speed and engine loading in determining the optimum valve timing and duration setting.

REFERENCES:
patent: 1578581 (1926-03-01), Casna
patent: 1635963 (1927-07-01), Seifert
patent: 2141428 (1938-12-01), Carroll
patent: 2183024 (1939-12-01), Large
patent: 2798466 (1957-07-01), Rzepecki
patent: 3650295 (1972-03-01), Smith

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