Simplified method and apparatus for assuring periodic control of the timing of an internal combustion engine
US4164204A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 13, 1976 |
| Grant date | Aug 14, 1979 |
| Priority date | — |
| Expiry date | Aug 13, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B2075/027
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Method and apparatus for periodically controlling the timing of an internal combustion engine in which two voltages are generated, one of which corresponds to a selected portion of one complete rotation of the engine shaft whereas the other is a function of time. A control signal is generated when the second voltage becomes equal to the first. The first voltage is of the form aq+b+ce.sup. -.gamma.q, in which a, b, and c may be any constants and .gamma. is a positive constant, while the second voltage is of the form d+ ge.sup. -.alpha.t, in which d and g may be any constants and .alpha. is a positive constant. PAC SUMMARY OF THE INVENTION It is known to be necessary in order to insure the satisfactory operation of a reciprocating internal combustion motor, such as the motor of an automotive vehicle, for example, to ignite the combustible gas in advance of the moment at which the piston reaches the top dead center point in the cylinder in question. In devices of a conventional type, the ignition is advanced by means of a centrifugal advance device and by means of a vacuum operated advance device, these two devices constituting mechanical controls which determine the relative position…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.