12results about "Installations with capacitive energy storage" patented technology

An ignition system (2) for controlling spark generation of a sparkplug (4) in a combustion engine, comprising an electronic circuit (6) comprising an ignition coil (8) including a primary winding (10), and a secondary winding (12) across which the sparkplug (4) is connectable, a voltage source (14) configured to supply energy to said primary winding (10), and a control unit (16) configured to control said spark generation including to initiate spark generation and thereby enter a spark initialization mode. Upon receipt of a breaktrough detection signal (20), the control unit (16) is configured to terminate the spark initialization mode and to enter a spark maintenance and control mode, to control and maintain the spark by controlling the current of the spark to follow a preset value, and to maintain the duration of the spark until a predetermined time period has lapsed. When the predetermined time period has lapsed, the control unit generated a spark termination control signal (22) to be applied to said electronic circuit (6) to terminate the spark and thereby enter a spark termination mode.

The application discloses a multi-electrode continuous discharge spark discharge generating device, and relates to the field of aero-engine ignition. The spark discharge generating device comprises an ignition circuit and a multi-electrode spark plug. The multi-electrode spark plug comprises a metal shell and a plurality of central high-voltage electrodes arranged in the metal shell. The application matches the design parameters of the multi-electrode spark plug with the non-uniformity coefficient of the electric field in the ignition end face, and designs the ignition circuit, so that the maximum value of the delay difference between the breakdown time of two adjacent discharges is less than the arc duration time, the continuous discharge of the multiple electrodes is realized, the arc flame energy is higher, the contact area of the ignition arc and the mixed fuel is larger, the combustion in the combustion chamber is more uniform, the misfire rate of the spark plug is effectively reduced, and the operation reliability of the engine is improved.

A prechamber device for facilitating a combustion reaction within a combustion chamber of an internal combustion spark-ignition gasoline engine includes a prechamber body, first and second electrodes, an insulation, first and second electrode terminals, a spark plug, and a prechamber head. The prechamber body includes orifices and at least partially contains the combustion reaction. The insulation insulates the first electrode and the second electrode from the prechamber body. The first electrode terminal receives a first amount of power and the second electrode terminal receives a second amount of power from an energy storage device. The first and second electrode terminals deliver the power to the first electrode and the second electrode that generate the electric field. The spark plug generates an ignition arc to initiate the combustion reaction. The prechamber head retains a position of the spark plug and closes off a first end of the prechamber body.

A plasma generation system includes a plasma generator such as an igniter and circuitry configured to apply a breakdown voltage across electrodes of the plasma generator to thereby form a plasma in an initiation region between the electrodes and then sustain and propagate the plasma outwardly for purposes such as combustion of a fuel. Various electrode configurations may be utilized that, along with plasma generating circuitry, enable the formation of virtual electrodes extending from the distal ends of the electrodes, resulting in a projection of plasma well beyond the physical electrodes. Such plasma generators may be used in various aerospace applications where only a short service life of the plasma generator is needed. Included are various techniques and components for enabling disconnection of the plasma generator from the system following ignition.

A linear electromechanical system comprising: a stator comprising at least a first stator electronic circuit and a second stator electronic circuit or circuit set; a free piston mover movable in a reciprocating manner relative to the stator. The free piston comprising: a piston surface; a transducer configured such that an electromagnetic force is applicable on the free piston mover by one or more of the stator electronic circuits or one or more of the circuit set; and one or more transducer electronic circuits. The system further comprising a switching device for each of the first stator electronic circuit and the second stator electronic circuit or each of the circuit set, such that the current in each of the first stator electronic circuit and the second stator electronic circuit or each of the circuit set is independently controllable, and wherein at least one of the transducer electronic circuits is configured to receive power from at least one of the independently controllable stator electronic circuits or at least one of the circuit set during at least part of a stroke of the free piston mover.

Discharge switching device (108), which includes: a comparator section (210) configured to compare an input voltage value with a reference voltage value; and a trigger section (212) configured to discharge stored energy when the input voltage value exceeds the reference voltage value, characterized by the fact that the discharge switching device (108) further comprises a temperature compensation diode (220) which is configured to reduce a change in the reference voltage value; the trigger section (212) comprises a trigger device and a discharge device; wherein the trigger device includes a trigger metal oxide semiconductor field effect transistor (MOSFET) (222) and a trigger transformer (216).

An ignition system (2) for controlling spark generation by a spark plug (4) in an internal combustion engine, the ignition system (2) comprising an electronic circuit (6) comprising an ignition coil (8) comprising a primary winding (10) and a secondary winding (12) on which the spark plug (4) is connected, a voltage source (14) configured to supply energy to said primary winding (10), and a control unit (16) arranged to control the ignition coil (8). The control unit (16) is configured to control the spark generation, including initiating spark generation and thus entering a spark initialization mode. Upon receipt of the breakdown detection signal (20), the control unit (16) is configured to terminate the spark initialization mode and to enter a spark maintenance and control mode, to control and maintain the spark by controlling the spark current to follow a preset value, and to maintain the duration of the spark until a predetermined time period elapses. When a predetermined time period has elapsed, the control unit generates a spark termination control signal (22) applied to the electronic circuit (6), thereby terminating the spark and thereby entering a spark termination mode.

A prechamber device for facilitating a combustion reaction within a combustion chamber of an internal combustion spark-ignition gasoline engine includes a prechamber body, first and second electrodes, an insulation, first and second electrode terminals, a spark plug, and a prechamber head. The prechamber body includes orifices and at least partially contains the combustion reaction. The insulation insulates the first electrode and the second electrode from the prechamber body. The first electrode terminal receives a first amount of power and the second electrode terminal receives a second amount of power from an energy storage device. The first and second electrode terminals deliver the power to the first electrode and the second electrode that generate the electric field. The spark plug generates an ignition arc to initiate the combustion reaction. The prechamber head retains a position of the spark plug and closes off a first end of the prechamber body.

This patent application discloses an electronic circuit (101) for controlling the spark of a spark plug (SP1) in a capacitor discharge ignition system (100) of an internal combustion engine. The electronic circuit (101) includes: an ignition coil (110) arranged to supply current to the spark plug (SP1); an ignition capacitor (C1) arranged to supply energy to a primary winding (L1); a voltage source (130) arranged to supply energy to at least one of the ignition capacitor (C1) and the primary winding (L1); a first switch (SW1) connected to a first primary terminal (TL1) and a first power supply terminal (TS1); a second switch (SW2) connected to a second capacitor terminal (TC2) and a second power supply terminal (TS2); and a third switch (SW3) connected to the second capacitor terminal (TC2) and the first power supply terminal (TS1). A capacitor discharge ignition system (100) including the above-mentioned electronic circuit (101) and an internal combustion engine including the capacitor discharge ignition system (100) are also disclosed.

The utility model provides an alternating-current ignition system with low rotating speed and high energy. The alternating-current ignition system comprises a magneto driven by an engine to rotate, the boosted circuit comprises a driving chip and a switching tube, and the driving chip controls on and off of the switching tube to oscillate a charging coil in the magnetor, so that the voltage output by the magnetor is boosted; the input end of the control module is electrically connected with the trigger signal output end of the magneto, and the control module outputs an ignition control signal according to the trigger signal; the ignition control circuit comprises an ignition capacitor, the charging end of the ignition capacitor is electrically connected with the alternating current output end of the magneto, and the control end of the ignition capacitor is connected with the ignition control signal output end of the control module; after the ignition control circuit receives an ignition control signal output by the control module, the ignition capacitor discharges to the ground, and ignition is achieved. The ignition energy of the alternating current igniter is improved, and the ignition stability of the alternating current igniter is improved.

The utility model discloses a waterproof connection structure of an ignition coil, which comprises an ignition coil body, a rubber sheath is sleeved at the bottom end of the ignition coil body in a sealing manner, a conductive spring is arranged in the rubber sheath, and the ignition coil body is fixedly mounted on an engine cylinder cover through a bolt. The engine cylinder cover is provided with an insertion hole used for allowing the rubber sheath to penetrate through, and a positioning ring is integrally formed in the position, close to the top end, of the outer wall of the rubber sheath. According to the utility model, dustproof and waterproof protection between the rubber sheath and the engine cylinder cover is realized through the arrangement of the sealing rib sheets, and water cannot flow backwards into the annular vent groove from the bottom end opening of the first vent hole under the action of gravity through the cooperation of the annular vent groove, the first vent hole and the second vent hole; during wading, air in the ventilation groove and the engine cylinder cover cannot be exhausted outwards due to the water pressure effect and is compressed, resistance generated by the compressed air prevents water from flowing backwards into the annular ventilation groove, and therefore waterproof protection is achieved, and the use effect is good.

An ignition system for the automotive industry is disclosed. The system includes a high voltage source to initiate the spark and a low voltage source to add extra energy to the spark, where the initiation and extra energy to the spark occur while the primary winding of the transformer is conducting. The high energy ignition system is implemented using a transformer with a secondary high voltage winding. The generation and extra energy to the spark occur using both capacitive and inductive transfer systems using the transformer. Various methods of generating the high voltage are also disclosed. Single switch, two switch and multiple switch methods are disclosed. Current controlled spark generation and multiple pulse methods are also disclosed. The system uses a small transformer while the primary is on to more efficiently deliver energy with fast current rise.