摘要:
Bei einer Vorrichtung zum Befestigen eines Einzelspulenzündsystems mit dem Zylinderkopf einer Brennkraftmaschine, mit in Längsrichtung angeordnet einer Zündspule und einem damit verrasteten Zündkerzenstecker, der durch eine Öffnung des Zylinderkopfs hindurchtritt und kontaktgebend mit einem Kontaktteil einer Zündkerze verbunden ist, ist das Einzelspulenzündsystem mittels des Zündkerzensteckers im Zylinderkopf gehalten, indem sich der Zündkerzenstecker elastisch in der Öffnung des Zylinderkopfs abstützt und mit dem Kontaktteil der Zündkerze verrastet ist.
摘要:
There is disclosed an ignition system for an internal combustion engine wherein insertion of a terminal (41) into a sleeve (55) from above a cap (51), with an upper portion of the sleeve (55) fitted in a sleeve receiving portion (51b) of the cap (51), causes a ledge (42) on an upper portion of the terminal (41) to advance beyond a ledge (53) of the cap (51) made of rubber into a position lower than the ledge (53), whereby an upper side of the ledge (42) engages the ledge (53) to prevent the upward movement of the terminal (41) and a lower side of the ledge (42) is locked to an upper end surface of the sleeve (55) to prevent the terminal (41) from slipping off downwardly, thereby completely positioning the terminal (41).
摘要:
Provided is an ignition apparatus for internal combustion engines with higher reliability for the solder bonding parts. The ignition apparatus is composed of a mold case having an input-output terminal formed on the mold case as a single body, a semiconductor switching device, a control circuit board, and a heat sink. On the heat sink, single or a plurality of laminated structure is used, including the semiconductor switching devices with beryllia as an electric insulation plate.
摘要:
A method for determining engine load of a spark ignition internal combustion engine. The method includes the steps of charging an ignition transformer to a maximum ignition charge and initiating an ignition discharge between electrodes of the spark plug. The ignition transformer is then charged to a predetermined diagnostic charge which is less than said maximum ignition charge. The diagnostic charge is discharged at a time of the combustion cycle where pressure in the combustion cylinder is dependent on engine load. The duration diagnostic discharge is then monitored and subsequently correlated to engine load. In this manner, the spark plug is used as a feedback element in determining engine load. Further also detection of misfire, autoignition and preignition. Use is made of special CPP ignition transformers which are able to refire at short intervals. Multispark ignition applied during hard engine operating conditions e.g. cold starting.
摘要:
A unipolar ignition of the invention provides a current waveform at the ignitor plug which initially rises relatively slowly, followed by a transition to a fast rising current which quickly peaks and thereafter slowly dissipates. Such a current waveform provides an initially hotter and longer lasting spark which does not harm the ignitor plug of the system or shorten its life expectancy. Neither does the spark create stress on the solid state circuitry which delivers the energy to the ignitor plug. To provide the foregoing spark and current characteristics, an inductor having a saturable core is in series with the ignitor plug, and it provides an initially high inductance which limits the rate of current rise at the plug as energy is transferred from an energy storage device to the plug. As the current through the inductor increases, its core begins to saturate and the effective inductance begins to decrease, allowing the current to rise more quickly. As energy is transferred to the ignitor plug, the increasing saturation, decreasing inductance and increasing current complement one another, causing the rate of current rise to increase quickly to a high value desirable for ignition. Related features of the invention provide for easy diagnostics of the spark and for timing an ignition sequence and providing a repetition rate which aids in a successful ignition.