Abstract:
A corona ignition system including a corona igniter, an energy supply, and a frequency detector is provided. The energy supply provides energy to the corona igniter during corona events which are spaced from one another by idle periods, during which no energy is provided to the corona igniter. During the idle periods, the frequency detector obtains the resonant frequency of the corona igniter from at least one of an output voltage and an output current of the energy stored in the corona igniter. The resonant frequency measured during this idle period is dependent only on the corona igniter, and not any other components of the system, and thus is very accurate. The drive frequency of future corona events can then be set based on this accurately measured resonant frequency to achieve a robust corona discharge.
Abstract:
The invention relates to a method and a detection device for detecting misfires in an internal combustion engine connected to a generator by means of a rotor shaft in a torsionally rigid manner. The generator comprises a detection device for detecting the misfires, which determines anomalies as a result of misfires of the internal combustion engine by comparing received actual values with nominal values provided by a speed regulator.
Abstract:
A lighted plug wire (10) is an internal combustion engine (50), the high voltage source (23) or distributor is affixed directly to the spark plug (40) or the ignition source by a conductive pathway filled with a visually reactive gas. The lighted plug wire extends from the high voltage source (23) to the ignition source and has an electrode (14, 15) at either end of conductively attaching and providing a conductive pathway. The gas found within the tube (12) extends entirely between the conductive electrodes at either distal end. The gas is visually reactive to current passing between the high voltage source (23) and ignition source.
Abstract:
An apparatus and method for visually monitoring and testing in situ the operation of an engine ignition system. A gas discharge device (12), typically a neon trigger tube, glow lamp or gas diode, is provided in the electrical circuit connecting each spark plug to its high voltage source so that the gas discharge device is triggered by firing of the spark plug. Defects in the ignition system, such as faulty ignition coil, high voltage leads, or spark plugs, can be visually detected from the failure of the discharge devices to flash, or a degradation in the illumination of the discharge devices. Each gas discharge device (12) can be incorporated into a connector unit (10) between the distributor (20) and a respective high voltage lead (30).
Abstract:
The ignition system (10) of an engine (particularly for a UAV) has a primary (10a), and a secondary (10b) ignition system to provide redundancy for 'get you home' capability should the primary ignition system fail. The secondary ignition provides a lower energy or shorter duration spark than the higher energy or longer duration sparking of the primary ignition system, and is retarded relative to primary sparking. Timing of the secondary sparking can be advanced in the event of primary sparking failure. Fuelling strategy can be shifted from a leaner stratified charge to a richer homogenous charge when relying just on the secondary ignition system for ignition. The secondary ignition system can be of a lower spark energy and/or duration than the primary ignition system, avoiding the cost, complexity and weight of replicating the primary ignition system, and to improve packaging within the engine housing, particularly within the limited payload and space limits of a UAV.
Abstract:
The invention relates to a method and a detection device for detecting misfires in an internal combustion engine connected to a generator by means of a rotor shaft in a torsionally rigid manner. The generator comprises a detection device for detecting the misfires, which determines anomalies as a result of misfires of the internal combustion engine by comparing received actual values with nominal values provided by a speed regulator.
Abstract:
Die Erfindung betrifft eine Abdeckvorrichtung (100) für einen Zündkerzenschacht (200) einer Brennkraftmaschine (10), insbesondere eines stationären Großgasmotors, mit Mitteln (110) zur Befestigung der Abdeckvorrichtung (100) im Bereich des Zündkerzenschachts (200), und mit mindestens einem Identifikationsgeber (120, 122), der dazu ausgebildet ist, drahtlos ein Identifikationssignal (I) an eine den Identifikationsgeber (120) mit einem Abfragesignal (S) beaufschlagende Auswerteeinheit (400) zu übertragen.