745 results about "IGNITOR" patented technology

A current sensor 73 detects a current flowing through a first buss bar 11. When a current value detected by the current sensor 73 became equal to or greater than a threshold current value, a CPU 74 outputs a driving control signal to a driving circuit 77, and the driving circuit 77 operates an, ignitor 29 through a second substrate 65 and a terminal 50. Therefore, the ignitor 29 ignites, a second projection 41 is melted by heat of a heating agent 27, a compression spring 34 is expanded and a thermite case 26 jumps up. Thus, electrical connection between the thermite case 26 and the first and second buss bars 11, 19 is interrupted. Further, since an outer container 61 in which the current sensor 73, the CPU and the driving circuit 77 are accommodated is integrally assembled with the cap 14a and the resin case 14b in which the thermite case 26, the ignitor 29, the compression spring 34 and the second projection 41 are accommodated, non-operational state of the ignitor 29 due to disconnection of electric wire is not generated.

The invention relates to a method for energizing an HF resonant circuit which contains an igniter as a component for igniting a fuel-air mixture in a combustion chamber of an internal combustion engine by means of a corona discharge, wherein the igniter comprises an ignition electrode and an insulator surrounding the ignition electrode, by means of a DC-AC inverter which is excited by successive current pulses which each last while a switch controlled by a control circuit is in its conducting switching state. It is provided according to the invention that the switch is actuated when an instantaneous value of an alternating current or an alternating current voltage excited in the HF resonant circuit falls below a first switching threshold (A−, B−, C−) and the switch s actuated when the instantaneous value of the alternating current or the alternating current voltage excited in the HF resonant circuit exceeds a second switching threshold (A+, B+, C+).

The invention relates to a double-cavity excitation enhanced microwave plasma torch generation device, and belongs to the technical field of microwave plasma. The device comprises a microwave magnetron, a circulator, a directional coupler, a microwave plasma coupling waveguide, a cylindrical waveguide, an igniter and a discharge tube. After the microwave magnetron, the circulator and the directional coupler are sequentially connected in series, the directional coupler is connected with the microwave plasma coupling waveguide. The cylindrical waveguide chamber is additionally arranged in the axial direction of the discharge tube perpendicular to a compression rectangular waveguide; a thermal resistance waveguide in the microwave plasma coupling waveguide effectively isolates the influence of thermal release of plasma discharge on a whole system; the igniter makes the whole system operated by a single person to complete a series of processes of ignition, excitation and maintenance, and the ignition success rate is close to 100% under the condition that the no-load output of a microwave source is low. Plasma torch afterglow with a larger volume action area can be obtained by increasing the maximum power of a plasma torch, so that the device can operate stably and reliably for a long time, and can be used in various relevant fields such as combustion assistance, nano material synthesis, waste gas treatment and high-temperature-resistant material surface modification.

A combustor for a gas turbine engine is provided, and includes an inner liner; an outer liner circumscribing the inner liner and forming a combustion chamber with the inner liner; a fuel igniter comprising a tip portion configured to ignite an air and fuel mixture in the combustion chamber; and an igniter tube positioning the fuel igniter relative to the combustion chamber, the igniter tube having a plurality of channels configured to direct cooling air toward the tip portion of the fuel igniter.

Provided is an aero-engine air rotational flow plasma igniter. An insulating sleeve and a supporting sleeve are installed inside a shell, the insulating sleeve is arranged on one side of a separating plate inside the shell, the supporting sleeve is arranged inside the shell, and an air chamber is formed between the outer surface of the supporting sleeve and the inner surface of the shell. An anode sleeve is sleeved at one end, provided with the supporting sleeve, of the shell. A swirler is arranged inside the anode sleeve, and the end surface of the swirler makes contact with the end surface of the supporting sleeve. A cathode installation base is arranged inside the insulating sleeve, and the end surface of the cathode installation base makes contact with a cathode binding post in a coaxial cable. The external thread end of a cathode is fixed inside the cathode installation base and sequentially penetrates through the supporting sleeve and the swirler from top to bottom, and the arc end of the cathode extends out of the lower end surface of the swirler. The aero-engine air rotational flow plasma igniter does not change the structure and the position of an electric spark igniter originally installed in an engine combustor, penetrates through the outer duct of an engine, is installed on the outer wall of the combustor vertically, improves reliability of products, and has the advantages of being small in size, light in weight, simple in structure, and convenient to use and maintain.

An internal combustion engine includes a pre-chamber. In another aspect, pressure within a pre-chamber is equal to or greater than pressure within a main combustion chamber at least prior to ignition in the main combustion chamber. A further aspect provides a supplemental piston creating pressure and supplying a fuel-air mixture into a pre-chamber, and a spark or glow plug has an end located within the pre-chamber for ignition of the mixture therein. In yet another aspect, internal combustion engine control software automatically controls pressure within a turbulent jet ignition pre-chamber, controls a valve-actuator to admit a fuel-air charge into the pre-chamber, and causes an ignitor to initiate combustion in the pressurized pre-chamber.

To provide a plasma igniter capable of generating a discharge such as a pulse streamer discharge in a large region even by application of a low voltage, implementing powerful ignition by pulse voltage application in two or more stages, improving an air-fuel ratio (A / F), and reducing a CO2 emission amount.A plasma igniter includes an igniter part having a combustion chamber, and a discharge part arranged in such a manner that its discharge tip end is exposed to the combustion chamber. The discharge tip end has a column-shaped anode, an annular cathode arranged to be a predetermined interval away from an anode tip end part, and an annular floating electrode arranged between the anode tip end part and the cathode.

This invention relates to a corona discharge ignitor used to ignite air / fuel mixtures in automotive applications and the like. To suppress an arc from forming when a voltage is applied to the ignitor, the corona discharge ignitor has various shapes and configurations, such as angular depressions or grooves, at the tip of the insulator. The shape and configuration of the tip provides a smaller radius which creates a more intensified electric field and provides better combustion.

A compact, low cost high intensity discharge lamp ballast apparatus which can carry out normal ballasting without extinction at discharge start includes a DC-AC inverting booster circuit, a first resonance circuit, and a second resonance circuit. The DC-AC inverting booster circuit includes a DC-AC converter transformer for converting a DC voltage fed from a DC power supply to an AC voltage in response to switching on and off of FETs, boosting the voltage. The first resonance circuit includes a leakage inductance connected in series with the secondary winding of the DC-AC converter transformer, and a first resonant capacitor connected in parallel with the secondary winding. The second resonance circuit includes a metal halide lamp, an ignitor transformer for producing a voltage to start lighting of the metal halide lamp, and a second resonant capacitor.

An ignitor comprising a circuit with a millisecond order time constant and with a minimum circuit size and area, which is capable of self-shutdown without leading to erroneous ignition upon detection of an abnormality. An ignitor 1 capable of self-shutdown upon detection of an abnormality comprises an abnormality detection circuit 12 whose rise output is applied to the gate of a self-shutdown MOSFET 33 via an integration circuit 33 comprised of a diode 8 and a capacitor 9. The gate voltage of IGBT 5a, which is a main-current switching device, can be decremented.

Combustion system comprising a furnace having a thermal load and a combustion atmosphere disposed therein; one or more fuel lances adapted to inject fuel into the combustion atmosphere; and one or more igniters associated with the one or more fuel lances and adapted to ignite the fuel injected by the one or more fuel lances into the combustion atmosphere.

An ignition system includes a housing defining an interior and an exhaust outlet. The housing is configured and adapted to be mounted to a combustor to issue flame from the exhaust outlet into the combustor for ignition and flame stabilization within the combustor. A fuel injector is mounted to the housing with an outlet of the fuel injector directed to issue a spray of fuel into the interior of the housing. An igniter is mounted to the housing with an ignition point of the igniter proximate the outlet of the fuel injector for ignition within the interior of the housing.