132 results about "Spark gap" patented technology

Described herein is a shock wave device for the treatment of vascular occlusions. The shock wave device includes an outer covering and an inner member inner connected at a distal end of the device. First and second conductive wires extend along the length of the device within the volume between the outer covering and the inner member. A conductive emitter band circumscribes the ends of the first and second wires to form a first spark gap between the end of the first wire and the emitter band and a second spark gap between the end of the second wire and the emitter band. When the volume is filled with conductive fluid and a high voltage pulse is applied across the first and second wires, first and second shock waves can be initiated from the first and second spark gaps.

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 medical device may include an elongated body, a balloon positioned at a distal portion of the elongated body, and one or more pressure-wave emitters positioned along a central longitudinal axis of the elongated body within the balloon. The one or more pressure-wave emitters may be configured to propagate pressure waves radially outward through the fluid to fragment a calcified lesion at the target treatment site. The at least one of the one or more pressure-wave emitters may comprise an electronic emitter including 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 portion of a hypotube.

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.

A spark plug includes a center electrode extending along an axial line, a metal shell holding the center electrode in an insulated manner, and a ground electrode connected to the metal shell by a connection portion. At least one of the center electrode and the ground electrode includes a protrusion. A discharge member joined to the protrusion via a fused portion forms a spark gap between the discharge member and the other one of the electrodes. A recess is formed at a position including the protrusion.

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.

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 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.

The invention relates to a spark gap arrangement (1), comprising at least one holding frame (2) and at least two electrodes (3), the holding frame (2) having an edge (4) which surrounds a recess (5) for receiving the at least one electrode (3). In the spark gap arrangement (1) according to the invention, a stable arrangement and orientation of the electrodes are permanently achieved in that the retaining frame (2) has a collar-shaped bearing section (6) which is directed inwards from the edge (4) and against which the electrode (3) rests with the edge section (7) on each side, the edge (4) is designed such that the two electrodes (3) are arranged opposite each other in the holding frame (2) at a distance corresponding to the thickness of the bearing section (6), and the edge (4) is designed such that the two electrodes (3) are arranged in the holding frame (2) so as not to completely overlap each other.

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.

Included in the present disclosure is a system, including an elongated body including an inner elongated structure including a guidewire lumen. The system may include a pressure wave emitter disposed about the elongated body and including a first electrode and a second electrode, arranged to define a spark gap between the first electrode and the second electrode. The first electrode may be configured to transmit electricity across the spark gap to the second electrode to cause a spark configured to enable a pressure wave to be generated. The system may include a generator configured to couple to the pressure wave emitter and deliver the electricity thereto via an electrical pathway. The system may include a detector configured to detect an aspect of i) the electricity along the electrical pathway, ii) an aspect of the pressure wave emitter, iii) an aspect of the generator, or iv) combinations thereof.

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 rotary spark gap that operates as a high-speed, high-voltage switch includes a rotor assembly having a plurality of rotors and a plurality of insulating spacers mounted on a rotatable rotor shaft with the rotors spaced and separated by the insulating spacers in an axial direction. Each rotor has a plurality of rotor points on the periphery and spaced apart around the outer circumference of the rotor. The rotor points electrically couple with a pair of bar electrodes disposed on opposite sides of the rotors. Each bar electrode is in heat conducting relation with a thermally-conductive heat to dissipate heat from the plasma generated by the arcing between the rotor points and the bar electrode. The rotary spark gap is configured for use with a Tesla coil in a Pulsed Electromechanical Field (PEMF) therapy system or device.

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 a hybrid voltage limiter. According to the invention, the hybrid voltage limiter (1) comprises a first electrode (14), a second electrode (15), flip-flop electronics (10), a thyristor component and a varistor component, the varistor component comprising a varistor (9) and being connected in parallel with the thyristor component, where the thyristor component is electrically connected to the first electrode (14), the thyristor component forming two thyristors (5) connected antiparallel, the gate of an anti-parallel connected thyristor (5) is connected to the flip-flop electronics (10) in such a way as to be able to receive a trigger signal of the flip-flop electronics (10), where the flip-flop electronics (10) are electrically connected to a first electrode (14) and a second electrode (15), where the thyristor component is electrically connected to the second electrode (15) via a first resistivity. The thyristor component is electrically connected to the second electrode (15) by a bypass (6) having a second electrical resistivity, the first electrical resistivity having a higher resistance value than the second electrical resistivity, and the bypass (6) is connected to the second electrode (15) in a spark gap-avoiding manner, and the varistor component is electrically connected to the first electrode (14) and the second electrode (15).

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.

The invention discloses an end effector and a substrate transfer apparatus. A specific substrate transfer apparatus includes: a robot unit mounted at an end of an arm and having an end effector supporting a substrate; and a moving unit that moves the robot unit, in which the end effector includes: a body; a support mounted on the body and supporting a lower side of the substrate; and a spark gap mounted on the body, and inducing a discharge to the outside of the body when the charge accumulated on the substrate reaches a threshold value.

A protection device against overvoltages includes a housing and an electrical module arranged in an internal volume of the housing. The electrical module includes a phase terminal, adjacent to one end of the housing, a location, adjacent to an opposite end of the housing, and a fuse and a varistor, connected in series to the phase terminal and distributed along a length axis so that the fuse is arranged between the phase terminal and the varistor and the varistor is arranged between the fuse and the location. The electrical module further includes a gas spark gap and a ground terminal, which are connected in series with the varistor and arranged in the location.

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.

The invention discloses a device and method for measuring the temperature characteristic of a resistor disc, and belongs to the technical field of lightning arrester resistor disc testing. The device comprises a loop inductor, a loop resistor, an ignition sphere gap, a temperature simulation box and a parallel capacitor which are sequentially connected in series, the temperature simulation box can adjust the temperature, and a to-be-tested resistor disc sample is placed and connected in the temperature simulation box; the two ends of the resistor disc test object are connected in parallel with an adjustable resistance box; the two ends of the resistor disc sample are connected in parallel with a voltage divider used for voltage measurement. The lower end of the resistor disc sample is connected in series with a current collector for current measurement. According to the invention, the resistor disc test object is placed in the temperature simulation box so as to obtain different temperatures, the adjustable resistor box is additionally arranged so as to obtain the voltage under the current from dozens of milliamperes to dozens of amperes, and the resistance change trend and the positive and negative temperature coefficient turning point of the test object at different temperatures are further obtained; and an important basis is provided for selection of lightning arrester parameters.

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.

A spark plug having a longitudinal axis. The spark plug includes: a housing; an insulator disposed at least partly inside the housing; a center electrode disposed at least partly inside the insulator and has an electrode body and an ignition element that is disposed on the combustion chamber-side end of the electrode body and serves as an ignition surface, wherein the ignition element has a cylindrical shape with a round base and a longitudinal axis which extends parallel to the spark plug longitudinal axis; and at least one ground electrode having an ignition surface disposed inside the housing on the housing. The ground electrode and the center electrode are disposed such that they form a spark gap that extends radially with respect to the spark plug longitudinal axis, wherein a width of the spark gap is not greater than 0.3 mm. The spark gaps are completely inside the housing.

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.

A spark plug which is reduced in consumption of a discharge member, thereby having a longer service life. This spark plug is provided with: a first electrode that comprises a discharge member; and a second electrode that faces the discharge member, with a spark gap lying therebetween. The discharge member is mainly composed of Ru, while containing 0.5% by mass to 30% by mass of Ni or Co.

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.