It proposes 4cycle engine structure to enable the improvement of a big engine characteristic by the simple structure.
Solution
The interception valve is installed around the suction valve(No.15) in the suction passage,and it opens and shuts according to the suction timing.
Theory
The suction efficiency is improved by temporarily catching the pressure generated around the suction valve in the suction passage Immediately after suction,and using the pressure for the following suction.
Control
Figure shows an ideal example of the valve of the opration timing.
Pulse ChartFigure shows the pressure in part A,after close suction valve.
EffectFigure shows the engine output characteristic of the interception valve application exietence
NoteThis technology has been registered to japan patent office.