Combustion control system for internal combustion engines

Claim 1

COMBUSTION CONTROL MEANS FOR AN INTERNAL COMBUSTION ENGINE COMPRISING, IN COMBUSTION, ADJUSTABLE IGNITION TIMING MEANS FOR SUCH ENGINE, A CONTROL INSTRUMENTALITY PROVIDING A SHIFTABLE CONTROL POINT, SAID IGNITION TIMING MENAS AND SAID CONTROL INSTRUMDNTALITY BEING ORIENTED WITH RESPECT OT T.D.C. OF CRANK SHAFT ROTATION OF SUCH ENGINE, MEANS INTERCONNECTING SAID IGNITION TIMING MEANS AND SAID CONTROL INSTRUMENTALITY FOR EFFECTING SHIFTING OF THE CONTROL POINT WITH RESPECT TO T.D.C. UPON ADJUSTMENT OF SAID IGNITION TIMING MENAS WITH RESPECT TO T.D.C. IN A PREDETERMINED RELATIONSHIP TO ONE ANOTHER WHEREBY IGNITION IS CAUSED TO OCCUR A GIVEN INTERVAL BEFORE T.D.C. HAVING A PREDETERMINED RELATIONTO THE POSITION OF THE CONTROL POINT PAST T.D.C. SENSING MEANS RESPONSIVE TO VARIATION IN COMBUSTION PRESSURE IN THE COMBUSTION CHAMBER OF SUCH ENGINE FOR SENSING THE POSITION OF CEANK SHAFT ROTATION AT WHICH PEAK COMBUSTION PRESSURE OCCURS, AND IGNITION TIMING ADJUSTING MEANS RESPONSIVE TO A DIFFERENTIAL BETWEEN THE POSITION OF THE CONTROL POINT WITH RESPECT TO T.D.C. AND THE POSITION AT WHICH SAID PEAK PRESSURE OCCURS WITH RESPECT TO T.D.C. FOR ADJUSTING THE IGNITION TIMING MEANS SO THAT PEAK PRESSURE COINCIDES WITH THE POSITION OF THE CONTROL POINT.