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954results about "Sparking plugs" patented technology

Direct injection of fuels in internal combustion engines

A fuel delivery injector for an internal combustion engine. The fuel injector forms pan of a device (10) which provides a combined injection and ignition means for the engine. The fuel delivery injector comprises a first portion (31) and a second portion (32) adapted to be detachably connected together. The first portion has a delivery port (37) defined between a valve seat (61) and a valve member (63) movable with respect to the valve seat (61) for opening and closing the delivery port (37). An actuating member (87) is provided in the first portion (31) and is operatively connected to the valve member (63). An actuating means (85) is provided in the second portion (32). When the first and second portions (31, 32) are connected together, the actuating mean (85) is operably associated with the actuating member (87) to provide an actuating assembly (83). Typically, the actuating assembly (83) comprises an electromagnetic means in which the actuating member (87) comprises a solenoid armature and the actuating means (85) comprises a solenoid oil, whereby connection of the first and second portions (31, 32) together completes assembly of the electromagnetic means. Where the device (10) provides a combined fuel injector and ignition me the device (10) is provided with a primary electrode (58) which cooperates with a secondary electrode (57) to define a spark gap (60). A popper projection (62) provided on the valve member (63) is utilized to define the primary electrode (58), as well as to provide spray guidance effects on the fuel spray issuing from the delivery port (37). The device (10) providing the combined fuel injection and ignition means is also described and claimed.
Owner:ORBITAL ENGINE CO PTY LTD

Electrode for an Ignition Device

ActiveUS20070290591A1Resistance to oxidationSparking plugsCeriumHafnium
An electrode for an ignition device is made from a Ni-based nickel-chromium-iron alloy which has improved resistance to high temperature oxidation, sulfidation, corrosive wear, deformation and fracture includes, by weight of the alloy: 14.5-25% chromium; 7-22% iron; 0.2-0.5% manganese; 0.2-0.5% silicon; 0.1-2.5% aluminum; 0.05-0.15% titanium; 0.01-0.1% total of calcium and magnesium; 0.005-0.5% zirconium; 0.001-0.01% boron, and the balance substantially Ni. It may also include at least one rare earth element selected from the group consisting of: yttrium, hafnium, lanthanum, cerium and neodymium in amounts ranging from 0.01-0.15% by weight, and incidental impurities, including cobalt, niobium, molybdenum, copper, carbon, lead, phosphorus or sulfur. These total of these impurities will typically be controlled to limits of 0.1% cobalt, 0.05% niobium, 0.05% molybdenum, 0.01% copper, 0.01% carbon, 0.005% lead, 0.005% phosphorus and 0.005% sulfur. The ignition device may be a spark plug which includes a ceramic insulator, a conductive shell, a center electrode disposed in the ceramic insulator having a terminal end and a sparking end with a center electrode sparking surface, and a ground electrode operatively attached to said shell having a ground electrode sparking surface, the center electrode sparking surface and the ground electrode sparking surface defining a spark gap therebetween. At least one of the center electrode or the ground electrode includes the solution-strengthened Ni-based nickel-chromium-iron alloy. The Ni-based nickel-chromium-iron alloy electrodes of the invention may also include a core with thermal conductivity greater than that of the Ni-based nickel-chromium-iron alloy, such as copper or silver or their alloys.
Owner:FEDERAL MOGUL WORLD WIDE LLC

Spark Plug With Fine Wire Ground Electrode

InactiveUS20070290593A1Strong and more secure jointFacilitates various attachment mechanismSparking plugsEngineeringInternal combustion engine
A spark plug for a spark-ignited internal combustion engine includes a generally tubular ceramic insulator. A conductive shell surrounds at least a portion of the ceramic insulator and includes at least one ground electrode. A center electrode is disposed in the ceramic insulator. The center electrode has an upper terminal end and a lower sparking end in opposing relation to the ground electrode, with a spark gap defining the space therebetween. The ground electrode extends from an anchored end adjacent the shell to a distal end adjacent the spark gap. The ground electrode includes a ledge formed on its distal end having at least one inset planar surface and an inset back wall. A high-performance metallic sparking tip is attached to the distal end of the ground electrode. The sparking tip has a base end disposed in surface-to-surface contact with the inset planar surface of the ledge. A particular advantage of the invention is achieved by the inset planar surface completely covering the base end of the sparking tip and extending outwardly therefrom to provide an exposed peripheral interface whereby optional attachment methods, such as welds may be applied, if desired, about at least a portion of the exposed periphery of the base end. In addition, portions of the sparking tip may abut the inset back wall, upper surface of center electrode or both enabling attachment of the sparking tip to the points where it abuts these surfaces.
Owner:FEDERAL MOGUL WORLD WIDE LLC

Electrode for an Ignition Device

An electrode for an ignition device is made from a dilute nickel alloy which has improved resistance to high temperature oxidation, sulfidation, corrosive wear, deformation and fracture and includes at least 90% by weight of nickel; zirconium; boron and at least one element from the group consisting of aluminum, magnesium, silicon, chromium, titanium and manganese. The weight ratio of Zr/B may range from about 0.5 to 150, and may include amounts of, by weight of the alloy, 0.05-0.5% zirconium and 0.001-0.01% boron. The oxidation resistance of the alloy may also be improved by the addition of hafnium to the alloy in an amount that is comparable to the amount of zirconium, which may include an amount of, by weight of the alloy, 0.005-0.2% hafnium. Electrodes of dilute nickel alloys which include aluminum and silicon, as well as those which include chromium, silicon, manganese and titanium, are particularly useful as spark plug electrodes. These electrode alloys of the may also include at least one of cobalt, niobium, vanadium, molybdenum, tungsten, copper, iron, carbon, calcium, phosphorus or sulfur as trace elements, generally with specified maximum amounts. The ignition device may be a spark plug which includes a ceramic insulator, a conductive shell, center electrode and ground electrode. The center electrode, ground electrode, or both, may be made from the dilute nickel alloy of the invention. These electrodes may also include a core with thermal conductivity greater than that of the dilute nickel alloy, such as copper or silver or their alloys.
Owner:FEDERAL MOGUL WORLD WIDE
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