About 121 results
https://drivepatents.com/patents/1083770 · 22 Sep 2004
An oxygen concentration detection system (100) including an oxygen sensor (1) which outputs a plurality of types of measurement signals and anomaly detection means and modification means. The anomaly detection means detects a sensor anomaly by determining ...
https://drivepatents.com/patents/1083783 · 22 Sep 2004
A glow plug comprises a plug case, a plug body held in the plug case and a combustion pressure sensor. The plug case has a sealing face formed on an inner surface thereof. The plug body includes a housing having a sealing portion airtightly engaged onto th...
https://drivepatents.com/patents/1083781 · 22 Sep 2004
A glow plug comprises a cylindrical housing having an inward protrusion extending radially inwardly, a threaded portion for screwing the glow plug in an engine plug hole and a sealing portion in a front side of the male threaded portion for airtightly enga...
https://drivepatents.com/patents/1084144 · 8 Sep 2004
A glow plug 1 includes a sheathed heater 3 and a metallic shell 2. The sheathed heater 3 is configured such that a resistance wire coil 3b having a heating coil portion 30b and an insulating MgO powder 3d are placed in a sheath 3a and such that a bar elect...
https://drivepatents.com/patents/1084742 · 18 Aug 2004
A glow plug energization control apparatus includes a unit for performing an energization control so that a sheath heater is quickly heated when a key switch is put in an on position, a unit for performing, subsequently to this, an energization control to ...
https://drivepatents.com/patents/1086582 · 9 Jun 2004
A glow plug is shortened and is standardized to be used for many kinds of the engines. A structure in which a glow plug having: an externally threaded portion 105 for mounting in a glow plug-mounting hole 11 in the engine head, a hexagonal portion for scre...
https://drivepatents.com/patents/1087527 · 6 May 2004
An ignition coil that has a construction allowing direct connection to an ignition plug and that does not need to change the installation space larger when mounted on a cylinder head; and an internal combustion engine ignition device having such ignition c...
https://drivepatents.com/patents/1088864 · 17 Mar 2004
The present invention provides a gas detection apparatus (10), which uses a gas sensor element (11) whose sensor resistance (Rs) changes in accordance with the concentration of an oxidative gas, obtains a sensor output value (S(n)) corresponding to the sen...
https://drivepatents.com/patents/1093803 · 27 Aug 2003
An object of the present invention is to provide a pressure sensor unit which is formed separately from a spark plug, and in which an extra space does not have to be secured in the peripheral portion of a pressure sensing element, while a space for attachi...
https://drivepatents.com/patents/1100546 · 6 Nov 2002
A misfire deciding method for an internal combustion engine, which can be executed conveniently at low cost by using a gasket type pressure sensor and which can decide a misfire highly accurately and reproducibly. The internal pressure of an internal combu...