Matches 1 - 24 out of 24


Match Document Document Title
US20110181168 SPARK PLUG  
A spark plug is provided which can ensure gastightness between a metal shell and an insulator while preventing the cracking of the insulator. There is provided a spark plug in which a ledge...
US20140042893 SPARK PLUG  
A spark plug includes a tip joined to a center electrode. The coefficient of linear thermal expansion of the center electrode is greater than that of the tip. The tip has a gap-forming portion...
US20140042894 SPARK PLUG AND ASSEMBLING STRUCTURE THEREOF  
A spark plug having a metallic shell extending along an axis (CL1) and a solid annular gasket. The metallic shell has an externally threaded portion and a seat portion, and the gasket has an...
US20090309476 Method for Applying a Pin on an Elecrode Base Body  
A method is described for applying a pin made of a spark-erosion-resistant material, in particular of noble metal, onto a electrode base element. In order to achieve a large pin surface exposed to...
US20050122024 Sealing device and sealing method  
A sealing apparatus and a method for sealing, which make possible reduced installation space and assembly at room temperature, are proposed. The sealing apparatus encompasses a ceramic base...
US20130221832 SPARK PLUG FOR INTERNAL COMBUSTION ENGINE AND METHOD FOR MANUFACTURING SAME  
The spark plug has a configuration satisfying the relationships of B≧0.7A and 0.3 mm≦A≦0.6 mm, where B is an axial thickness along the central axis line Q of the weld portion formed between the...
US20070228915 SPARK PLUG USED FOR AN INTERNAL-COMBUSTION ENGINE AND A METHOD FOR MANUFACTURING THE SAME  
The present invention provides a highly reliable spark plug used for an internal-combustion engine and including an insulator with a high withstand voltage, and a method for manufacturing the...
US20150236481 CORONA IGNITION DEVICE  
A corona ignition device for igniting fuel in an internal combustion engine by means of a corona discharge. The corona ignition device comprises a central electrode, an insulator into which the...
US20140084776 SPARK PLUG  
A spark plug includes an insulator, and a metal shell disposed at an outer periphery of the insulator and including a shoulder. The insulator includes a trunk portion, and a leg formed at the tip...
US20060181185 Spark plug having shield for ground electrode  
A spark plug according to the present invention includes a tubular metal shell, an insulator, a center electrode, a ground electrode, and a shield. The insulator is retained in the metal shell....
US20140361679 SPARK PLUG FOR INTERNAL COMBUSTION ENGINE AND METHOD OF MANUFACTURING THE SAME  
In a spark plug, a center electrode includes a base member and a discharge chip that has a higher melting point than the base member. The base member and the discharge chip are joined to each...
US20130147338 ELECTRODE BEAM WELDED SPARK PLUGS FOR INDUSTRIAL ELECTRODES  
An industrial spark plug (20) includes a central electrode (24) with a central base (30) formed of a nickel-based material and a central firing tip (32) formed of an iridium-based material. The...
US20120038263 SPARK PLUG  
A spark plug includes a center electrode extending in an axial direction; an insulator formed externally of the outer circumference of the center electrode; a metallic shell formed externally of...
US20080238284 SPARK PLUG FOR INTERNAL COMBUSTION ENGINE  
A spark plug (1) for an internal combustion engine includes: a cylindrical insulator (2) having an axial hole (4) penetrating in a direction of an axis (C1); a center electrode (5) partially...
US20110018422 SPARK PLUG  
When an insulator of a spark plug receives an external force in a bending direction perpendicular to an axis at a rear end side body portion, a position C where the insulator is supported by a...
US20110043094 SPARK PLUG, AND METHOD FOR MANUFACTURING THE SAME  
A spark plug and method of manufacturing the same. The spark plug includes a tubular insulator holding a center electrode, and a tubular metallic shell holding the insulator. The insulator is...
US20150194792 SPARK PLUG  
A spark plug includes an insulating insulator and a metal shell. The metal shell includes a caulking portion, a seat portion with a tapering surface, a thread portion with a thread size equal to...
US20130307403 SPARK PLUG WITH INCREASED MECHANICAL STRENGTH  
A spark plug with a particular configuration, particularly in the area of a gasket that seals between a shell and insulator, increases the mechanical strength of the spark plug and helps prevent...
US20130221831 LASER WELDED SPARK PLUG ELECTRODE AND METHOD OF FORMING THE SAME  
An electrode for a spark plug includes an electrode tip end. A first weld affixes at least a portion of the noble metal tip to the tip end of the electrode. The noble metal tip has a fold around...
US20120062099 SPARK PLUG  
An object of the invention is to restrain separation of an electrode tip from a ground electrode or from a center electrode. A spark plug satisfies a condition 0.8≦A1/A2≦1.9, where, as viewed on a...
US20140070692 SPARK PLUG  
A park plug includes a tubular insulator extending along and centered on an axis, and a tubular metal shell secured to an outer peripheral surface of the insulator by crimping, in which powder for...
US20120104927 SPARK PLUG WITH UNDERCUT INSULATOR  
A spark plug for an internal combustion engine, the spark plug having: an elongated center electrode having a center electrode tip at one end and a terminal proximate the other end; an insulator...
US20150357796 SPARK PLUG AND METHOD OF MANUFACTURING THE SAME  
A spark plug including a ground electrode body and an electrode tip that is resistance welded to the ground electrode body and that has a discharge surface. In a specific sectional plane, a...
US20110241525 HIGH THREAD SPARK PLUG WITH UNDERCUT INSULATOR  
A spark plug for an internal combustion engine, the spark plug having an elongated center electrode having a center electrode tip at one end and a terminal proximate to another end of the center...

Matches 1 - 24 out of 24