About 31 results
https://drivepatents.com/patents/1393488 · 7 May 2025
[Problem to be Solved] The combustion state is prevented from becoming unstable when an operating point fluctuates in a pre-chamber internal combustion engine.[Solution] In an internal combustion engine including: a combustion chamber; a pre-chamber commun...
https://drivepatents.com/patents/941478 · 22 Jun 2016
A purpose is simultaneously achieving improvement in voltage resistance, suppression of oxidation of a center electrode, and suppression of side sparking. A spark plug includes an insulator having an axial hole that extends along an axis line, and a center...
https://drivepatents.com/patents/956124 · 4 Nov 2015
Peeling (detachment) and deformation and the like of a chip is effectively prevented. A spark plug 1 is provided with: a central electrode 5; a ground electrode 27 forming a spark discharge gap 33 with the center electrode 5; and a chip 31(32) welded to at...
https://drivepatents.com/patents/959454 · 1 Jul 2015
The disclosure pertains to ignition systems and more particularly to spark igniters for burners and burner pilots. The spark igniter provided, is configured such that an electric field concentration between two electrodes increases while keeping output vol...
https://drivepatents.com/patents/960216 · 10 Jun 2015
Deformation of a seat portion and a protrusion is reduced in a caulking process so as to ensure good air tightness. A spark plug (1) includes an insulating insulator (2) and a metal shell (3). The metal shell (3) includes a caulking portion (19), a seat po...
https://drivepatents.com/patents/968883 · 15 Oct 2014
An object is to efficiently conduct heat from a tip to an inner layer to thereby improve the corrosion resistance of the tip. A spark plug 1 includes a ceramic insulator 2 having an axial hole 4 extending in the direction of an axis CL1, a center electrode...
https://drivepatents.com/patents/969779 · 24 Sep 2014
An ignition plug (1) includes a center electrode (5) extending in the direction of an axis (CL1), an insulator (2) having an axial hole (4) into which the center electrode (5) is inserted, a tip (31) joined to a forward end portion of the center electrode ...
https://drivepatents.com/patents/973932 · 11 Jun 2014
[Objective] To provide a technique for enhancing the heat transfer performance of a fusion portion and a noble metal tip. [Means for Solution] A spark plug has a center electrode having an electrode base member and an inner layer which is disposed in the e...
https://drivepatents.com/patents/974522 · 28 May 2014
A spark plug (1) includes a center electrode (5), a ground electrode (27), and a tip (31) joined to the center electrode (5) and forming a spark discharge gap (33) in cooperation with the ground electrode (27). The tip (31) is joined to the center electrod...
https://drivepatents.com/patents/974865 · 14 May 2014
Disclosed is a pressure-measuring plug (100) for a combustion engine. The pressure-measuring plug comprises a plug body (102) and a ring-shaped sensing structure (104). The plug body comprises an external thread (102A) for mounting the plug body into a cyl...