About 31 results
https://drivepatents.com/patents/1000790 · 4 Jul 2012
A generation of a stress corrosion cracking is prevented in a middle section. The spark plug 1 includes an insulator 2 that extends along an axis CL1 direction and a metal shell 3. The metal shell 3 includes a middle section 41 that is positioned between a...
https://drivepatents.com/patents/1001809 · 6 Jun 2012
In a spark plug that has a small sized center electrode, enhancement of corruption-resisting property and heat-resisting property is promoted. The spark plug 1 includes a center electrode 5, an insulator 2 and a metal shell 3, and the insulator 2 includes ...
https://drivepatents.com/patents/1005846 · 25 Jan 2012
The invention relates to an international combustion engine ignition system, including: a plurality of spark coils (Ca, Cb) each having a primary coil (La1, Lb1) and a secondary coil (La2, Lb2), each secondary coil being coupled to a common spark plug to a...
https://drivepatents.com/patents/1007979 · 9 Nov 2011
Peeling resistance of a noble metal chip is improved by reducing a difference in the thermal stress generated between the noble metal chip and a ground electrode. A spark plug 1 includes an insulator 2, a center electrode 5, a metal shell 3, and a ground e...
https://drivepatents.com/patents/1008129 · 2 Nov 2011
A spark plug 100 has a center electrode tip 90, 95 at an end portion of an electrode. The electrode tip 90, 95 contains Pd as a main component in an amount greater than 40% by weight and contains at least one element of Ir, Ni, Co, and Fe such that Ir, if ...
https://drivepatents.com/patents/1013843 · 13 Apr 2011
In a plughole waterproofing device for an engine, a coil case (10) for covering an ignition coil (7) is fitted onto the ignition coil (7) that is accommodated, together with an ignition plug (8), in a plughole (12) opened to an upper surface of an engine, ...
https://drivepatents.com/patents/1096034 · 14 May 2003
A spark plug (1) has a tubular metal casing (2), in which an insulator (4) is embedded. A rod-shaped inner conductor structure fits in the insulator and has a terminal stud (11), a current-limiting resistor (12), a coated contact pin (13) and a central ele...
https://drivepatents.com/patents/1102690 · 7 Aug 2002
An ignition apparatus (10) includes a magnetic circuit comprising a central core (16) and a side core or shield (36), and primary (24) and secondary (30) windings. The shield (36) is allowed to electrically float, thereby reducing the capacitance of the se...
https://drivepatents.com/patents/1102693 · 7 Aug 2002
An ignition apparatus (10) includes a suppression device (74) comprising a suppression winding (76) that is in series with the secondary winding (30) and is further located outside of a magnetic circuit. The suppression winding (76) is made from the same w...
https://drivepatents.com/patents/1109219 · 17 Oct 2001
A method of assembly of ignition pencil coils comprises the steps of: providing a leadframe (14) comprising tracks (16) for the electrical connection of said ignition pencil coils (12); overmolding said leadframe (14) with a polymer so as to form a casing ...