摘要:
A plasma ignition plug for an internal combustion engine has a thorium alloyed tungsten anode separated from a vanadium- or beryllium-alloyed copper cathode by a boron nitride ceramic powder insulator. A generally semi-spherical titanium emitter is electrically coupled to the anode and disposed within an end of the insulator so as to form an annular gap with a torus on the end of the cathode. The surface of the emitter protrudes slightly beyond the rim of the torus on the cathode. High amplitude pulses driven into the anode arc across the annular gap to the cathode at more than twenty-four spots simultaneously, generating a plasma ignition front.
摘要:
A method of operating a two-stroke, spark-ignited internal combustion engine equipped with an ECU (66), an Input/Logic Multiplexer (70), a DC - DC converter (74), an Ignition Trigger (78) and an Ignition Distribution System (86) wherein the ignition is time-base controlled at higher speeds.
摘要:
The invention concerns an ignition system for internal combustion engines with stationary high-voltage distribution and comprising at least one ignition coil (11). A controllable switch (12) is arranged in series with the primary winding (10) and can be controlled by a control unit (13). At least one high-voltage four-layer diode (HKD) comprising a plurality of four-layer diode chips is arranged in each secondary ignition branch between the high-voltage end of the secondary winding (14) and a spark plug (ZK1, ZK2, ... ZKn). A switch controlled by the control unit during the ignition coil charging process enables a conditioning current to pass through the high-voltage four-layer diode (HKD) and inundate the blocking area with charge carriers (38) in the high-voltage four-layer diode.
摘要:
A capacitive discharge ignition system is described that incorporates a two-terminal passive network for controlling the discharge of a capacitive energy storage device into an igniter plug, wherein the network comprises a solid-state switch for alternately providing high and low ohmic paths between the two terminals in order to selectively connect the capacitive energy storage device to the igniter plug. The passive network includes means responsive to a predetermined value of a voltage differential (ΔV) between the two terminals for effecting the switching of the path between the two terminals provided by the solid-state switch from a high ohmic value to a low ohmic value, thereby controllably discharging the capacitive energy storage device into the igniter plug. In the illustrated embodiment, the solid-state switch is a series of SCRs, each of whose anode is connected to the trigger input of the SCR by way of a breakover diode (BOD).