156 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.

A spark plug with 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 having a base body and a first ignition element; and at least one ground electrode disposed inside the housing and having a base body and a second ignition element. The ground electrode and the center electrode are disposed such they form a spark gap which extends radially with respect to the spark plug longitudinal axis. A surface of the first ignition element of the center electrode which serves as ignition surfaces and a surface of the second ignition element of the ground electrode which serves as ignition surfaces are flat surfaces. A width of the spark gap is not greater than 0.3 mm, and the spark gap is formed inside the housing.

The invention discloses a variable-parameter microsecond pulse excitation voltage source design method, and relates to the technical field of power equipment power supplies, and the method comprises the steps: generating a double-exponential type impulse voltage and an oscillation type impulse voltage; automatic repetition frequency pulse voltage excitation output is realized; the rising time and the falling time of the output double-exponential impulse voltage can be adjusted by adjusting the sizes of the wavefront resistor, the discharging resistor and the charging capacitor; on the basis of a double-exponential impulse voltage circuit, the output of oscillation type impulse voltage is realized by connecting an inductor between a wavefront resistor and a test object in series, and the wavefront time, the half-peak time and the oscillation frequency of the output oscillation type impulse voltage can be adjusted by adjusting the values of the resistor, the capacitor and the inductor. According to the variable-parameter microsecond pulse excitation voltage source design method provided by the invention, the controllable high-voltage half-bridge module is adopted to replace a traditional spark sphere gap device to realize automatic repetition frequency pulse voltage excitation.

Apparatuses including spark gap structures for electrical overstress (EOS) monitoring or protection, and associated methods, are disclosed. In an aspect, a vertical spark gap device includes a substrate having a horizontal main surface and a plurality of pairs of conductive layers over the horizontal main surface. Different ones of the pairs are separated by different vertical distances such that each pair serves as an arcing electrode pair and different ones of the arcing electrode pairs are configured to arc discharge at different voltages.

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.

The invention provides an active pre-combustion chamber with an adjustable jet velocity. The active pre-combustion chamber comprises a pre-combustion chamber shell, a pre-combustion chamber top cover is arranged at the top of the pre-combustion chamber shell, a pre-combustion chamber cavity is formed between the pre-combustion chamber top cover and the pre-combustion chamber shell, and a spray hole is formed in the bottom of the pre-combustion chamber shell; an ejector communicated with the pre-combustion chamber cavity is mounted on the pre-combustion chamber top cover, at least two ignition electrodes are arranged in the pre-combustion chamber cavity and penetrate through the pre-combustion chamber top cover, and a spark gap is formed between one end, arranged in the pre-combustion chamber cavity, of each ignition electrode and an earth pole in the pre-combustion chamber shell; the other end of the ignition electrode extends to the upper end of the pre-combustion chamber top cover; the structure is simple and compact, the multiple ignition electrodes are integrated in the limited pre-combustion chamber cavity to replace an original spark plug, the combustion pressure in the pre-combustion chamber is changed by controlling the ignition phase difference of the multiple ignition electrodes, and therefore the flame jetting speed in the pre-combustion chamber is adjusted.

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.

The present invention relates to the technical field of toy manufacturing, and in particular to an object launcher device and a method of use. The object launcher device includes a chamber and a launch tube; the launch tube has an open bottom end and an open top end, the bottom end of the launch tube is fixedly connected to the opening of the chamber, and the top end of the launch tube is provided with a cross-over screen or blocking strip; above the base of the chamber launcher device, the input port of the chamber is connected to the aerosol injection device; the chamber is provided with a pressure reducing valve and a spark gap, and the spark gap is connected to the spark power source using at least two wires. The method and device disclosed in the present invention can be used to safely and repeatedly launch objects quickly into the air; the flammable liquid of the aerosol device is sprayed into the chamber to mix with the air and ignite, thereby pushing the object quickly away from the object launcher device, and the pressure reducing valve can prevent the chamber from being over-pressurized and prevent the use of an inappropriate fuel source, and can allow the launch to be safely terminated without launching the object.

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.

A multi-spark gap for an overvoltage protector, having multiple electrodes and insulation elements arranged between the electrodes, a holding arrangement for mechanical holding and for making electrical contact with the electrodes of the multi-spark gap, wherein the holding arrangement has at least a first electrically conductive clamping element, a second electrically conductive clamping element, and a first electrically conductive connecting element, wherein the electrodes are arranged between the first clamping element and the second clamping element, wherein the first clamping element makes electrical contact with the first electrode of the multi-spark gap, and wherein the second clamping element makes electrical contact with the last electrode of the multi-spark gap, and wherein the at least first connecting element mechanically connects the first clamping element and the second clamping element to one another.

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.

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.

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 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.

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.