86 results about "Spark gap" patented technology

SOLUTION: A spark plug (1) having a longitudinal axis X, comprising: a housing (2) having a longitudinal bore parallel to the longitudinal axis X of the spark plug (1), whereby the housing (2) has a housing wall (20) and an internal space (21); an insulator (3) disposed inside the housing (2); a center electrode (4) disposed inside the insulator (3); and an overall length L MaEI and D MaEI a ground electrode (5) having a diameter of D Bohr The hole (50) in the housing wall (20) has a diameter of 1.5 mm, and the ground electrode (5) has a length L Bohr The ground electrode (5) is disposed in the hole (50) with a length L em The housing wall (20) projects from the inner surface (20a) of the housing wall (20) into the interior space (21) of the housing (2) with a thickness D Wall and a spark gap (45) formed between the ground electrode (5) and the center electrode (4), and a length L of the ground electrode (5) in the hole (50). Bohr The total length L of the ground electrode (5) MaEI is greater than or equal to 1.8 and less than or equal to 2.2, and / or the thickness L of the housing wall (20) Wall The length L of the ground electrode (5) projecting into the internal space (21) of the housing (2) relative to the em The ratio is greater than or equal to 0.2 and less than or equal to 3, and the length or thickness extends perpendicular to the major axis X of the spark plug (1).

Apparatuses including spark gap structures for electrical overstress (EOS) monitoring or protection, and associated methods, are disclosed. In an aspect, a spark gap device includes first and second conductive layers formed over a substrate, where the first and second conductive layers are electrically connected to first and second voltage nodes, respectively. The first conductive layer includes a plurality of arcing tips configured to form arcing electrode pairs with the second conductive layer to form an arc discharge in response to an EOS voltage between the first and second voltage nodes. The spark gap device further includes a series ballast resistor electrically connected between the arcing tips and the first voltage node, where the ballast resistor in formed in a metallization layer over the substrate and a resistance of the series ballast resistor is substantially higher than a resistance of the second conductive layer.

The present invention relates to an apparatus having an isolation device (1) for an overvoltage discharge device (2). A first contact (8) and a second contact (9) of the isolation device (1) are connected via a first path (16) having a thermally triggerable switching element (12). A second path (17) is arranged in electrical parallel with the first path (16). An impedance element (10) is arranged in the second path (17), wherein a spark gap (11) is arranged in the first path (16).

A protection device against pulsed currents intended to transmit signals having frequencies lying in a transmission frequency band. The protection device has a signal conduction path and a shielding disposed around the signal conduction path. The signal conduction path has two spark gaps mounted in series and an inductor element linking a portion of the signal conduction path situated between the spark gaps. The inductor element is linked to the shielding. The protection device is configured as a high-pass filter allowing passage over the signal conduction path of the signals having frequencies lying within the transmission frequency band.

An assembly contains a disconnecting device for a surge-arresting device. A first contact and a second contact of the disconnecting device are connected by a first path having a switching element which can be thermally tripped. A second path is disposed electrically in parallel with the first path. An impedance element is disposed in the second path. A spark gap is disposed in the first path.

A prechamber sparkplug (40) includes a sparkplug housing (44) forming a prechamber (50), and an electrode (52) within the prechamber and defining a spark gap (54) with the sparkplug housing. The prechamber sparkplug further includes a valvular element (70) such as a check, a valve, or a tesla valve, structured to preferentially permit ejection of fluids from the prechamber over admission of fluids to the prechamber. Varying relative restriction of fluids into versus out of the prechamber can limit a charge density within the prechamber extending sparkplug service life, particularly in high power density engine applications. Related apparatus and methodology is also disclosed.

An arrester including a metal oxide varistor (MOV) disc and a spark gap assembly electrically connected in series with the MOV disc. The spark gap assembly includes a spark gap and a frequency-dependent grading capacitor electrically connected in parallel with the spark gap.

The invention relates to a sensor element with overvoltage protection, comprising: a carrier element; a sensor structure applied or attached to the carrier element for detecting a measurement variable, the sensor structure having a first electrical contact point and a second electrical contact point, the sensor structure being operable by applying a voltage between the first electrical contact point and the second electrical contact point; and an overvoltage protection element applied to the carrier element and comprising a sub-element pair consisting of a first sub-element comprising a first conductor rail and a first pad and a second sub-element comprising a second conductor rail and a second pad spaced apart from the first pad, a first conductor rail electrically connects the first electrical contact to the first pad and a second conductor rail connects the second electrical contact to the second pad, the first pad and the second pad being designed and arranged on the carrier element at a first distance from each other such that a spark gap is formed between the first pad and the second pad.

A spark plug. The spark plug includes a housing; an insulator arranged within the housing; a center electrode arranged within the insulator; and an earth electrode arranged within the housing and between the housing and the insulator. The earth electrode and the center electrode are arranged such that they form a spark gap, and the spark gap is within the housing.

The utility model discloses a capacitor closing inrush current treatment device based on a fast circuit breaker, which belongs to the technical field of closing inrush current treatment and comprises a capacitor, a circuit breaking assembly, a voltage transformer and a current transformer, a wire inlet end of the circuit breaking assembly is connected with an external network, a wire outlet end of the circuit breaking assembly is connected with a wire inlet end of the capacitor, and a wire outlet end of the current transformer is connected with a wire outlet end of the capacitor. The current transformer is connected in series with the wire outlet end of the transformer, and the high-voltage end of the voltage transformer is connected in parallel with the wire inlet end of the circuit breaking assembly. According to the capacitor closing inrush current treatment device based on the quick circuit breaker, the voltage transformer is matched with the measurement module to monitor a power grid voltage signal in real time, the spark gap GAP is matched to realize on-off connection, the current limiting assembly RL is used to limit the closing inrush current, and the circuit breaker K2 is used to realize short circuit after the current is stabilized. The problem that the inrush current limiting effect is poor only through RL is solved, and the inrush current treatment effect is improved.

The invention relates to the technical field of electric power system detection devices, and discloses a novel power transmission line porcelain insulator live detection device which comprises a rotor wing attitude adjustment overturning platform. One end of the high-voltage insulation air bag extension arm is connected with the rotor wing posture adjusting and overturning platform; the portable porcelain insulator live detection device is arranged at the other end of the high-voltage insulation air bag extension arm, and a spark gap used for judging the insulation state of the porcelain insulator is formed in the portable porcelain insulator live detection device; and the handheld intelligent detection terminal is in wireless communication with the rotor wing posture adjusting turnover platform and the portable porcelain insulator live detection device. The unmanned aerial vehicle is adopted to carry an automatic detection system to replace traditional manual pole and tower climbing operation, personal safety risks of high-altitude falling and high-voltage shock of operators are fundamentally eliminated, and the problems that a traditional unmanned aerial vehicle infrared thermal imaging method is insensitive to slight defects and high in misjudgment rate are solved.

An assembly contains a disconnecting device for a surge-arresting device. A first contact and a second contact of the disconnecting device are connected by a first path having a switching element which can be thermally tripped. A second path is disposed electrically in parallel with the first path. An impedance element is disposed in the second path. A spark gap is disposed in the first path.

An ignition system is provided. The ignition system includes at least one ignition module, which has an input end to receive control signal from the ECU, and an output end to supply ignition energy to the spark gap. The ignition module provides on-demand ignition energy based on an engine operation conditions with adaptively controlled discharge current amplitude and duration using prompt feedback signals measurement of the plasma impedance.

Spark plug (10), comprising: a first electrode (18) comprising a base material (19) and a discharge element (20) comprising, wherein at least a part of the discharge element (20) is connected to the base material (19) with an intermediate diffusion layer (25); and a second electrode (13) which faces the discharge element (25) with an intermediate spark gap (22), wherein the base material (19) contains at least 50 wt% of Ni, at least 8 wt% and at most 40 wt% of Cr, at least 0.05 wt% and at most 2 wt% of Si, at least 0.01 wt% and at most 2 wt% of Al, at least 0.01 wt% and at most 2 wt% of Mn, at least 0.01 wt% and at most 0.1 wt% of C and at least 0.001 wt% and at most 0.04 wt% of Fe.

The present invention provides a spark plug spark gap adjustment device for a spark plug having a skirt-type outer electrode, which has a relatively simple configuration and can securely hold and fix the spark plug while accurately adjusting multiple adjustment points one by one. [Solution] The device comprises a fixed base and a gap adjustment part coupled to the upper part of the fixed base so as to be circumferentially rotatable, wherein the fixed base has a grounding part, a spark plug mounting part arranged cylindrically above the grounding part and having a spark plug installed inside, and a plurality of fixing screws that press the spark plug installed inside through a through hole in the spark plug mounting part, and the gap adjustment part has an adjustment screw that presses the gap adjustment portion of the spark plug installed inside through a through hole in the gap adjustment part.

An impulsive wave device for treating a vascular occlusion is described. The impulsive wave device includes an outer covering and an inner member connected at a distal end of the device. First and second conductive wires extend along a length of the device within a volume between the outer covering and the inner member. A conductive launch band surrounds the ends of the first and second conductive wires to form a first spark gap between the end of the first conductive wire and the launch band and a second spark gap between the end of the second conductive wire and the launch band. First and second impulsive waves can be initiated from the first and second spark gaps when the volume is filled with a conductive fluid and a high voltage pulse is applied across the first and second conductive wires.

The application relates to a loudspeaker type spark gap charged detection porcelain insulator device, belonging to the technical field of power system equipment, which comprises a detection device and an insulating extension rod detachably connected with the detection device. The detection device comprises a telescopic rod, an amplification circuit element and an insulating epoxy plate connected in sequence. A pair of induction connectors and a pair of metal rods for detection are fixed on the insulating epoxy plate. A discharge gap is formed between the two induction connectors, and a sensor cover is arranged on the discharge gap. A spark inductor is arranged in the sensor cover. The two induction connectors are electrically connected with the two metal rods in a one-to-one correspondence. An installation shell is fixedly arranged on the amplification circuit element. An indicating lamp and a loudspeaker are arranged in the installation shell. A series loop is formed between the indicating lamp, the amplification circuit element, the loudspeaker and the two metal rods. The application can quickly judge the quality of the porcelain insulator, the judgment phenomenon is obvious, and the work burden of the operating personnel is effectively reduced.

Devices with spark gap structures for monitoring or protecting against electrical overload (EOS) and associated methods are disclosed. In one aspect, a vertical spark gap device comprises a substrate with a horizontal main surface, a first conductive layer, and a second conductive layer, each extending over the substrate and substantially parallel to the horizontal main surface, while separated in a vertical direction intersecting the horizontal main surface. One of the first and second conductive layers is electrically connected to a first voltage node, and the other of the first and second conductive layers is electrically connected to a second voltage node.The first and second conductive layers serve as one or more arc electrode pairs and have overlapping sections configured to generate one or more arc discharges in response to an EOS voltage signal received between the first and second voltage nodes, generally extending in the vertical direction.

To provide a medical device which executes treatment on a calcification plaque lesion in a blood circulatory system of a patient.SOLUTION: The medical device may comprise an elongate body, a balloon positioned at a distal portion of the elongate body, and one or more pressure wave emitters positioned along a central longitudinal axis of the elongate body within the balloon. The one or more pressure wave emitters may be configured to propagate pressure waves radially outward through a fluid to break up calcified lesions at a target treatment site. At least one of the one or more pressure wave emitters may comprise an electron emitter comprising a first electrode and a second electrode. The first electrode and the second electrode may be arranged to define a spark gap between the first electrode and the second electrode, and the second electrode may comprise a part of a hypotube.SELECTED DRAWING: Figure 1

A pulse phase ablation biphasic PFA generator with finite energy source and delivery mechanism is disclosed, comprising: a signal source configured to output electrode input signals; a trigger circuit configured to trigger signals; at least one electrode channel circuit including a charge transfer source circuit including a source capacitor and coupled to the signal source to receive the electrode input signals, the charge transfer source circuit being configured to charge the source capacitor to a source voltage, a switching circuit coupled to charge transfer source circuit to receive the source voltage and to the trigger circuit to receive the trigger signals, and a charge transfer load circuit including a load capacitor coupled to the switching circuit; wherein the switching circuit further includes a plurality of spark gap switches activated by the trigger signals to cause the electrode channel to apply a biphasic waveform to electrodes configured to contact tissue.

A system can produce localized spacetime distortions, gravitational waves, sudden transitions in the index of refraction and optical path length changes via high-energy plasma formation. The system includes a high-energy spark-gap arrangement, where an electrical discharge between tungsten tips produces extremely high energy densities in a localized region. The system is tunable and can be driven by either constant or time-varying voltage sources, allowing for different distortion profiles and electromagnetic emission patterns. The system can operate in various environments, including air, inert gases such as helium, and even in vacuum conditions. Multiple spark-gap assemblies can be arranged to create customized distortion shapes and enhanced field effects.

An arrester including a metal oxide varistor (MOV) disc and a spark gap assembly electrically connected in series with the MOV disc. The spark gap assembly includes a spark gap and a frequency-dependent grading capacitor electrically connected in parallel with the spark gap.

A surge protection device comprising: a surge arrester (9) and a spark gap (11) with a first electrode (13) which is connected to one end of the surge arrester (9), wherein the spark gap (11) and a central axis of the surge arrester (9) enclose an angle of less than 180°, characterized by the fact that a torsional moment compensation element (15) is provided which is dimensioned to counteract a torsional moment of the first electrode (13) about the central axis of the surge arrester (9) caused by wind.

The invention relates to a Marx generator comprising a circuit comprising at least two capacitors arranged to be charged in parallel and discharged in series. The circuit comprises at least two spark gap switches, where each spark gap switch comprises two electrodes separated by a gap distance filled with a pressurized gas, each spark gap switch is configured to allow an electric spark to pass between two electrodes of the spark gap switch in the event that a potential difference between the two electrodes exceeds a breakdown voltage, and wherein the Marx generator comprises a regulating unit, and an adjustment unit configured to adjust a gap distance between two electrodes of each of the at least two spark gap switches in order to control the output voltage, where the adjustment unit is configured to adjust the gap distance by means of a voltage-controlled actuator and / or a capacitance-controlled actuator.

According to an embodiment, a method for determining the efficiency of a drilling process performed by an electric pulse drilling rig is disclosed, the rig including a drill bit (103) driven by a Max generator (100) configured to generate a discharge current (200, 300) penetrating a medium, the discharge current (200, 300) flowing between a first drill tip and a second drill tip, and the discharge current (200, 300) originating from a high-voltage pulse generated by the Max generator (100), the Max generator including a set of spark gaps (110-113) located between capacitors (130-133), the method comprising the steps of: capturing radiation at the spark gaps (110) of the Max generator, the radiation being generated when the Max generator (100) discharges; filtering the captured radiation at a predefined wavelength; and measuring the duration for which the filtered radiation is above a predefined threshold; and determining the efficiency of the drilling process based on the measured duration (201, 301).

The application discloses a ground wire ice melting device with a lightning protection function and a method thereof, and the device comprises a ground wire body, a mica glass fiber electric heating layer, a cross-linked polyethylene insulation layer, a plurality of groups of metal oxide lightning arresters and a control unit; the electric heating layer is spirally wound outside the ground wire body and is externally connected with a power supply through a copper foil bus bar, the insulation layer is coaxially extruded on the outside of the electric heating layer, and the lightning arresters are arranged in parallel with the ground wire body through spark gaps. The electric heating layer is used for realizing uninterrupted electric heating ice melting of the ground wire, the insulation layer is used for realizing reliable electrical isolation, and distributed lightning arresters form an integrated lightning protection system. The control unit collects temperature and leakage current signals, rapidly cuts off power supply when lightning exceeds a standard, avoids insulation breakdown, takes into account ice melting operation and lightning protection, and improves the operation stability of the device.

The application discloses a compact controllable high-voltage ultra-short electromagnetic pulse generating device, which comprises a Marx main circuit and a pulse waveform shaping circuit, the Marx main circuit and the pulse waveform shaping circuit are both separately provided with sealed metal containers, the two metal containers are filled with insulating gas, a charging power supply connector for connecting a charging power supply is arranged on the metal container of the Marx main circuit, a discharge connector is further arranged on the metal container of the pulse waveform shaping circuit, a conductive structure is arranged between the two metal containers, and the Marx main circuit and the pulse waveform shaping circuit are connected through the conductive structure; a trigger signal connector for connecting a trigger device is further arranged on the metal container of the Marx main circuit, and the trigger device is used for triggering a controllable spark gap switch, so that the discharge voltage superposition effect and the output voltage amplitude can be improved, and the loss caused by the asynchronization of discharge switches can be reduced.

A flame detection device that uses a breakdown voltage across a pair of electrodes located in a flame region to detect the presence or absence of a flame. The flame detection device can be used with a burner that is part of a furnace in a home or building's central heating system. Unlike conventional flame detection devices that measure an ionization current in a flame, the flame detection device detects a flame by determining a voltage (also referred to as a breakdown voltage) required for a spark event across a spark gap located in a flame region, and evaluating the breakdown voltage and / or various characteristics thereof to detect the presence or absence of a flame. According to one example, the flame detection device includes a power source, an ignition unit, an output line, an insulator, and electrodes.

The present invention relates to an inflatable spark gap for protecting an electrical installation, the inflatable spark gap comprising: an electrically insulating body; two electrodes fixed to the electrically insulating body and spaced apart from each other in the main direction; an inter-electrode space formed in the electrically insulating body between the two electrodes, the inter-electrode space being sealed in a gas-tight manner; two connection terminals intended to be able to electrically connect the inflatable spark gap to an electrical facility, the two connection terminals being electrically connected to a respective one of the two electrodes; the inter-electrode space comprises a diverting channel defining a propagation trajectory (T) for the arc, the cross-sectional area of the diverting channel being between 2 mm < 2 > and 8 mm < 2 >, the diverting channel extending transversely or obliquely to the main direction over at least a portion of the length of the diverting channel; and a gas sealed in the inter-electrode space, the gas being selected from the group consisting of argon Ar, neon Ne, nitrogen N2, hydrogen H2, helium He, and mixtures thereof.

Spark plug (10), comprising: a first electrode (18) comprising a base material (19) and a discharge element (20), wherein at least a part of the discharge element (20) is connected to the base material (19) with an intermediate diffusion layer (25); and a second electrode (13) which faces the discharge element (20) with an intermediate spark gap (22), wherein the base material (19) contains at least 50 wt% of Ni, at least 8 wt% and at most 40 wt% of Cr, at least 0.01 wt% and at most 2 wt% of Si, at least 0.01 wt% and at most 2 wt% of Al, at least 0.01 wt% and at most 2 wt% of Mn, at least 0.01 wt% and at most 0.1 wt% of C and at least 0.001 wt% and at most 5 wt% of Fe, wherein the discharge element (20) is an alloy which mainly contains Pt and Ni, or is the alloy which furthermore contains at least one of Rh, Ir and Ru, and where, if Pt, Rh, Ir and Ru are referred to as a P group, K (atomic %) is an atomic concentration of the P group in the discharge element (20) where L (atomic %) represents an atomic concentration of the P group in the base material (19), M (atomic %) represents an atomic concentration of Ni in the discharge element (20), and N (atomic %) represents an atomic concentration of Ni in the base material (19), (K+L) / (M+N) ≤ 1.14 is satisfied.