29results about "Sparking plugs" patented technology

Arrangement of a spark plug (8) in a spark plug sleeve (6) made of a metallic material, the sleeve having a cylindrical receptacle (15) extending eccentrically to its outer mounting section for receiving an insulator body (7) of the spark plug (8), resulting in a wall section (17) of the spark plug sleeve (6) with a greater wall thickness, wherein a ground electrode (34) extending from the end face of the spark plug sleeve (6) is provided at a reduced-diameter end of the receptacle (15) and this ground electrode interacts with a central electrode (31) projecting axially beyond the insulator body (7) to generate a spark gap, wherein a fuel channel (14) extends within the wall section (17) with a greater wall thickness, the outlet of which is provided in the spark plug sleeve (6) adjacent to the spark gap, and wherein a check valve (22) is associated with the fuel channel (14), characterized in thatthat the check valve (22) is inserted into the fuel channel (14) from the outlet side and that a magnetically controlled metering valve is integrated into the spark plug sleeve (6) in conjunction with the check valve (22).

A method of detecting the breakdown voltage between the electrodes of a spark plug connected to an ignition coil for a cylinder ignition system, in an internal combustion engine, comprises a detection of an opening of the switch (105) on the primary winding (102) and a detection of a voltage on that primary winding (102), with the generation of a first signal (V1) representative of the voltage trend following the opening of the switch (105). The first signal (V1) is then integrated and, following an identification of a breakdown at the ends of the spark plug (106), a breakdown voltage value is determined as a function of the value of the integrated signal at the time of the breakdown.

The utility model provides a spark plug matched with the ignition coil of big energy big voltage big current belongs to the technical field of spark plug, including thread cover, ceramic tube fixedly installed outside the thread cover, center electrode fixedly installed outside the ceramic tube, and first iridium gold electrode head fixedly installed at the inclined surface of center electrode, still include side electrode fixedly installed outside the ceramic tube, second iridium gold electrode head fixedly installed in the corresponding position of side electrode and first iridium gold electrode head of center electrode, electrode retainer ring fixedly installed outside the thread cover, the utility model discloses through the discharge plane design of sixty degrees promotes flame radial extension, makes the effective promotion of flame propagation speed, effectively strengthens the ignition performance, and iridium gold electrode head cooperation bending structure significantly reduces the flame elimination effect, reduces heat absorption, guarantees the temperature reduction of working time, and the electrode protection ring of additional can double protection iridium gold electrode in welding and working.

Spark plug for igniting a combustible fuel in an internal combustion engine, comprising: - an ignition means (2) arranged at an end of the spark plug (1) facing the combustion chamber, when the spark plug (1) is mounted in the internal combustion engine, - a wall (3), which at least partially surrounds the ignition means (2), and - a sealing area (4), which is used for sealing the combustion chamber against the environment, wherein the wall (3) comprises the sealing area (4) located at an end of the wall (3), which end faces the combustion chamber when the spark plug (1) is mounted in the internal combustion engine.

A burner comprises a housing and a combustion chamber assembly. The combustion chamber assembly comprises a barrel portion, a mounting base, a first spark plug, a second spark plug, and a diesel nozzle assembly. The barrel portion comprises a combustion chamber. The mounting base comprises an air inlet passage and a mounting barrel portion. The first spark plug and the second spark plug both protrude into the combustion chamber. The diesel nozzle assembly is mounted on the mounting barrel portion, and the diesel nozzle assembly is configured to inject diesel into the combustion chamber. The diesel nozzle assembly comprises a valve needle, a first swirling assembly located at the bottom of the valve needle, and a sleeve portion located below the first swirling assembly, wherein the first swirling assembly comprises an inlet hole and a throttling injection hole, the sleeve portion is provided with a mixing chamber communicated with the throttling injection hole, and the mixing chamber is used for mixing diesel and air. The throttling injection hole improves continuity of diesel injection under low power.

A hydrogen fuel internal combustion engine comprising a cylinder head and one or more cylinder assemblies. The or each cylinder assembly comprises: a combustion chamber at least partially defined by a roof of the cylinder head; and a spark plug extending through the roof, the spark plug comprising a first electrode separated from a second electrode via a gap. At least one of the first and second electrodes protrudes from the roof such that the gap is within the combustion chamber. Each cylinder assembly comprises a barrier on or adjacent the spark plug configured to inhibit a liquid flowing on the roof reaching the gap.

To provide a spark plug capable of reducing a bending stress of a tip end part of a center electrode.SOLUTION: A spark plug comprises: an insulation body into which a shaft hole extended from a tip end to a rear end side is provided; and a center electrode that is arranged to the shaft hole of an insulation body and is extended along a shaft line. The center electrode contains a tip end part projected from the tip end of the insulation body, and the tip end part contains a root positioned to the tip end of the insulation body, and an electrode tip end of which a width is smaller than that of the root. An outer shape line connecting the root of the tip end part appeared in a cross section and the electrode tip end contains one or more concave parts that is concaved toward the shaft line. A value R / A obtained by dividing a curvature radius R of the rear end concave part that is closest to the root of the concave part with a distance A of a shaft line direction between the rear end concave part and the electrode tip end is 0.12 or more.SELECTED DRAWING: Figure 2

spark plug (1) having a longitudinal axis X: • A housing (2) with an inner side, an outer side and a combustion chamber-side end face (20), • An insulator (3) arranged in the housing (2), • A central electrode (4) arranged in the insulator (3), which protrudes from the insulator (3) on the combustion chamber side and whose combustion chamber-side end is inside the housing (2), • A ground electrode (5) arranged on the housing (2) such that the axial ignition gap (45) is formed within the housing (2) between the center electrode (4) and the ground electrode (5), wherein the housing (2) has a recess (6) on the inner edge of its combustion chamber-side end face (20) in which the ground electrode (5) is arranged and fastened.

Spark plug (10), having: a central electrode (13) extending in the axial direction (O) and comprising a base element (20), a tip (21) made of a material different from a material of the base element (20), and a molten section (22) connecting the tip (21) to the base element (20); an insulator (11) having a cylindrical shape and holding the central electrode (13) from an outer circumferential side of the central electrode (13); a metal housing (15) having a cylindrical shape and holding the insulator (11) from an outer circumferential side of the insulator (11); and a ground electrode (17) which is connected to the metal housing (15) and faces a discharge surface (23) of the tip (21) in the axial direction (O), wherein in a projection view formed by projecting the spark plug (10) perpendicular to the axial line direction (O), when an angle formed by a straight line (27) passing through a first boundary (25) between the tip (21) and the molten section (22) and a second boundary (26) between the molten section (22) and the base element (20), wherein the first boundary (25) and the second boundary (26) are located at opposite ends of an outer form line (24) of the molten section (22), and a straight line (28) extending in a perpendicular direction to the axial line direction (O) is represented by θ, a distance between the first boundary (25) and the discharge surface (23) in the axial direction (O) is represented by A, and A distance between the first boundary (25) and the second boundary (26) in the vertical direction is represented by B, 0 < A / B ≤ 1 and θ ≤ 70° are satisfied.

Spark plug (1) for a hydrogen-powered internal combustion engine having a longitudinal axis X, comprising • a housing (2) with an inner surface (20), • an insulator (3) arranged inside the housing (2) • a central electrode (4) arranged inside the insulator (3), • a ground electrode (5), • an ignition gap (45) formed between the ground electrode (5) and the center electrode (4) inside the housing (2), wherein the ground electrode (5) is positively connected to the housing (2), in particular by being pressed in, wherein the positive connection results from the ground electrode (5) contacting the housing (2) at two opposite points (21a, b) on its inside (20) and thereby pressing the ground electrode (5) inside the housing (2).

A spark plug having a longitudinal axis. The spark plug includes: a housing having a bore along the spark plug longitudinal axis and a combustion-chamber-side end face; an insulator arranged at least partially within the housing, and having an insulator base extending from a combustion-chamber-side end face of the insulator to an insulator base neck; a central electrode arranged at least partially within the insulator; and a ground electrode arranged on the housing, the ground electrode and the central electrode being arranged so that the at least one ground electrode forms a spark gap with the central electrode, a width of the spark gap being defined by an inter-electrode distance between the central electrode and the ground electrode. The inter-electrode distance between the central electrode and the ground electrode is not greater than 0.4 mm. The spark gap is formed at least partially within the housing.

The invention relates to a spark plug (1) with a longitudinal axis X, having: • a housing (2) having a longitudinal bore, as a result of which the housing (2) has an outer side (20) and an interior (21), and having a thread (22) formed on its outer side (20), as a result of which a threaded region (220) is formed on the outer side (20) of the housing (2), and having a thread-free region (230) which adjoins the threaded region (220) on the combustion chamber side, and also has a combustion-chamber-side end face (25), • an insulator (3), the combustion-chamber-side end of which is inside the housing (2), • a central electrode (4), which protrudes from the insulator on the combustion chamber side and the combustion-chamber-side end of which is inside the housing, • at least one ground electrode (5), in particular two or more ground electrodes, which is arranged in a lateral through-bore in the housing, • a radial ignition gap (45), which is formed by the ground electrode (5) and the central electrode (4) and which is formed inside the housing (2), wherein a plane A can be spanned by the combustion-chamber-side end of the ignition gap (45) perpendicular to the longitudinal axis X, characterised in that the through-bore for the ground electrode (5) is formed on the thread-free region (230) of the housing (2), and in that the thread-free region (230) has further openings (24) which are designed such that a gas flows out of the combustion chamber through the openings (24) into the housing interior (21).

The present invention pertains to a spark plug (100) comprising a housing (2), an insulator (4) for electrically insulating a center electrode (6) provided at least partly on the inside of the insulator (4). The housing (2) of the spark plug (100) is configured such that in a mounted state, an annular gap (8) is formed between the housing (2) and the insulator (4). The annular gap (8) is filled with a heat-conducting element (10).

A system and method for reducing the size of pilots utilizes an igniter arranged to combine the functionalities of a pilot with an ignition source by receiving and igniting a combustible via a spark formed in a gap internal to the igniter.

The invention relates to a cap (1) for a prechamber spark plug (100) with a longitudinal axis X, comprising a cap body having an outer side (10) and an inner side (15), a main through-bore (21) which extends from the outer side (10) of the cap (1) through the cap body to the inner side (15) of the cap (1) and the bore axis (211) of which intersects the longitudinal axis X of the cap (1) inside the cap (1), and at least one pair of through-bores of a first type (22), wherein this first through-bore type (22) is a tangential through-bore which extends from the outer side (10) of the cap (1) through the cap body to the inner side (15) of the cap (1) and the bore axis (221) of which does not intersect the longitudinal axis X of the cap (1) inside the cap (1), and at least one pair of through-bores of a second type (23), wherein this second through-bore type (23) is a radial through-bore which extends from the outer side (10) of the cap (1) through the cap body to the inner side (15) of the cap (1) and the bore axis (231) of which intersects the longitudinal axis X of the cap (1) inside the cap (1), wherein there is a plane E which extends parallel to the longitudinal axis X and in which an intersection point of the bore axes (221) of the through-bore pair of the first type (22) lies, and wherein the main bore hole (21) is bisected by the plane E and each through-bore (22, 23) of a through-bore pair lies on one side of the plane E.

Spark plug (1) with a longitudinal axis X, comprising: • A housing (2) with a longitudinal bore, wherein the housing (2) has an outer surface (20) and an inner surface (21), and with a thread (22) formed on its outer surface (20), wherein a threaded area (220) is formed on the outer surface (20) of the housing (2), and a combustion chamber-side unthreaded area (230) adjoining the threaded area (220), as well as a combustion chamber-side end face (25), • An insulator (3) whose combustion chamber-side end is inside the housing (2), • A center electrode (4) which projects from the insulator on the combustion chamber side and whose combustion chamber-side end is inside the housing, • At least one ground electrode (5), in particular two or more ground electrodes, which is arranged in a lateral through-bore in the housing, • A radial ignition gap (45),which is formed by the ground electrode (5) and the center electrode (4) and which is formed within the housing (2), wherein a plane A can be spanned perpendicular to the longitudinal axis X through the combustion chamber-side end of the ignition gap (45), characterized in that the through-hole for the ground electrode (5) is formed on the threadless area (230) of the housing (2) and that the threadless area (230) has further openings (24) which are configured to allow a gas from the combustion chamber to flow through the openings (24) into the housing interior (21).

Lighting device for simulating an ignition spark, characterized in that a conventional spark plug serves as a housing and electrical conductor, wherein at least one semiconductor lighting element (LED) is arranged in the spark gap between the center electrode and the ground electrode, which is electrically connected to the said electrodes.

The embodiment of the application provides a gas discharge tube and a manufacturing method and device of the gas discharge tube, and belongs to the technical field of overvoltage protection. The gas discharge tube comprises: a porcelain tube uniformly provided with a plurality of discharge gaps; a first mounting surface is arranged around each discharge gap on a first surface of the porcelain tube, a second mounting surface is arranged around each discharge gap on a second surface of the porcelain tube, and corresponding first electrodes and second electrodes are arranged; a first target electrode is connected with a first pin, each first electrode pair comprises two first remaining electrodes connected through a connecting piece, a second target electrode is connected with a second pin, each second electrode pair comprises two second remaining electrodes connected through a connecting piece, and the relative positions of the first electrode pair and the second electrode pair on the first mounting surface or the second mounting surface corresponding to the discharge gap are not completely same. Through the provided scheme, the intermediate electrode is omitted, the volume of the gas discharge tube is reduced, and the production efficiency is further improved.

An apparatus includes a treatment chamber configured to contain a growth medium, at least one reservoir configured to contain at least one fluid, and a plasma reactor. The plasma reactor includes a plurality of electrodes including a first electrode and a second electrode and a reaction region is disposed between the first electrode and the second electrode. The apparatus also includes an ignition unit electrically connected to at least one electrode of the plurality of electrodes, an injector in fluidic communication with the at least one reservoir, and a pressure regulator configured to transfer the fluid to the injector. Various other apparatuses, systems, and methods are also disclosed.

Pre-chamber spark plug (200) with: a housing (202) extending along a longitudinal axis (LA), wherein the housing (202) has an inner surface (204); an insulator (210) having an outer surface (206) and being arranged at least partially inside the housing (202) such that the outer surface (206) of the insulator (210) is opposite the inner surface (204) of the housing (202); a prechamber cap (218) connected to the housing (202), wherein the prechamber cap (218) and the housing (202) together form a prechamber (220), wherein the prechamber cap (218) has one or more openings (222) which allow gas exchange between the prechamber (220) and a space outside the prechamber (220); an annular reservoir (242) defined between the outer surface (206) of the insulator (210) and the inner surface (204) of the housing (202), wherein the annular reservoir (242) is spaced apart from the prechamber (220) with respect to the longitudinal axis (LA); and a multitude of projections (244) that are angularly separated from each other with respect to the longitudinal axis (LA), wherein the plurality of projections (244) between the annular reservoir (242) and the prechamber (220) are arranged with respect to the longitudinal axis (LA) and at least partially define a plurality of flow channels (246) between them, and wherein each flow channel (246) extends fluidically between the annular reservoir (242) and the prechamber (220) such that the annular reservoir (242) is in fluid communication with the prechamber (220), and wherein a maximum reservoir width (W1) of the annular reservoir (242) perpendicular to the longitudinal axis (LA) is greater than a maximum channel width (W2) of each flow channel (246) between the inner surface (204) of the housing (202) and the outer surface (206) of the insulator (210).

Spark plug (10) comprising an insulator (11) arranged in a spark plug housing (21), the insulator having a longitudinal axis (12) and an opening (13) along the longitudinal axis (12), a center electrode (14) arranged in the opening (13) of the insulator (11), and at least one ground electrode (15) provided on the spark plug housing (21), wherein the insulator (11) has a first insulator section (31) and a second insulator section (32), the first insulator section (31) extending in the direction of the longitudinal axis (12) over a first insulator section length (61) with a first inner diameter (51), and the second insulator section (32) extending in the direction of the longitudinal axis (12) over a second insulator section length (62) with a second inner diameter (52), the first inner diameter (51) being smaller than the second inner diameter (52).wherein the first insulator section (31) transitions directly into the second insulator section (32) in a transition (25), and wherein the central electrode (14) has a central electrode section (44) with a constant diameter extending in the direction of the longitudinal axis (12) over a central electrode section length (64) with a central electrode outer diameter (54), wherein the central electrode section (44) extends at least over the entire insulator section length of the first insulator section (31) and the second insulator section (32), and wherein the central electrode section (44) in the first insulator section (31) has a radial distance to the insulator (11) of at least 40 µm and at most 120 µm.

Containing a spark plug (10; 50; 80): a central electrode (20) extending along an axis (O) from a front end to a rear end; an insulator (11) with a front end section (14) designed as a tube with a bottom, surrounding a tip (21) of the central electrode (20); a metal casing (30) which is tubular in shape and structured to support the insulator (11) such that the front end section (14) of the insulator (11) projects from a front end section (31) of the metal casing (30) to the front end side; and a plurality of ground electrodes (40; 60; 90), each of which has a first end (43, 46; 65, 68, 71, 74; 95, 98, 101, 104) which forms a discharge gap (45, 48; 67, 70, 73, 76; 97, 100, 103, 106) with the front end section (14) of the insulator (11), and a second end (44, 47; 66, 69, 72, 75; 96, 99, 102, 105) which is connected to the front end section (31) of the metal shell (30), wherein the majority of ground electrodes (40; 60; 90) comprise a pair of ground electrodes whose associated discharge gaps (45, 48; 67, 70, 73, 76; 97, 100, 103, 106) differ in size from each other.

The present invention pertains to inserts for a spark plug sleeve of a combustion engine as well as a spark plug sleeve comprising such insert, a corresponding spark plug system and spark plug. In particular, inserts are suggested to improve a cooling of a spark plug mounted in a spark plug sleeve. Accordingly, an insert (22) for a spark plug sleeve (12) of a combustion engine is suggested, comprising a longitudinal body having an outer wall (28), said outer wall (28) defining an inner cavity being configured to removably accommodate a spark plug (10) therein in the mounted state of the insert (22), wherein the longitudinal body is configured to be movably arranged within the spark plug sleeve (12) between a first position sealing a radial opening (38) of the spark plug sleeve (12) and a second position providing a fluid communication between the radial opening (38) and an end portion (16) of the spark plug (10) in the mounted state of the insert (22).

This ignition device is provided with: an ignition coil (2) having a primary coil (21) connected to a power supply (B) and a secondary coil (22) that generates a high voltage as the primary coil (21) is energized; an ignition plug (3) having a center electrode (31) connected to the secondary coil (22) and a ground electrode (32) facing the center electrode (31) with a discharge gap (4) therebetween; and a parallel circuit (5) having a diode (51) that regulates the direction of current flow between the secondary coil (22) and the center electrode (31) and a resistor (52) electrically connected in parallel to the diode (51), wherein a resistance value R (unit: MΩ) of the resistor (52) and a gap value G (unit: mm) of the discharge gap (4) satisfy the relationship of formula 1.　Formula 1: 13.69 × 10X ≤ R ≤ 16.17 × 10Y, where X = −2.75 × G and Y = 1.72 × G.

A burner, comprising a housing and a combustion chamber assembly. The combustion chamber assembly comprises a cylinder portion, a mounting seat, a first spark plug, a second spark plug, and a diesel nozzle assembly. The cylinder portion comprises a combustion chamber. The mounting seat comprises an air intake channel, a first air vent through hole, and a second air vent through hole. The first spark plug and the second spark plug both protrude into the combustion chamber. A first air flow purge channel is further disposed between the first spark plug and a first wall portion, so as to purge the first spark plug by using a portion of air. A second air flow purge channel is further disposed between the second spark plug and a second wall portion, so as to purge the second spark plug by using a portion of the air. The burner of the present application can reduce the probability of carbon deposition at the first spark plug and the second spark plug.