Patents
Sitemap › H01 - Basic electric elements › H01T - Spark gaps; Overvoltage arresters using spark gaps; Sparking plugs; Corona devices; Generating ions to be introduced into non-enclosed gases › H01T 13 - Sparking plugs
Patents for H01T 13 - Sparking plugs (7,441)
01/1989
01/03/1989US4795937 Spark plug with combined surface and air spark paths
12/1988
12/13/1988US4790767 Electrical connector for a distributorless ignition system
11/1988
11/30/1988EP0151594B1 Connection device in an ignition system
11/22/1988US4786267 Spark plug
11/22/1988CA1245317A1 Ignition wire terminal
11/17/1988WO1988009073A1 Self-centering sealing for electrode structure
11/10/1988DE3811395A1 Spark plug for an internal combustion engine
11/02/1988EP0288512A1 Ignition boot
10/1988
10/27/1988DE3712393A1 Device for checking heater plugs of a motor vehicle exhibiting an auto-ignition-type internal combustion engine
10/19/1988EP0287080A1 Spark plug for internal-combustion engine
09/1988
09/22/1988DE3707703A1 Spark plug suppressor connecter
09/13/1988US4771211 Self-centered sealing for electrode structure
09/13/1988US4771210 Spark plug with electrodes having noble metal inserts
09/13/1988US4771209 Spark igniter having precious metal ground electrode inserts
09/13/1988US4770642 Ignition cable connector
09/13/1988US4770152 Ignition device for an internal combustion engine
09/07/1988WO1988006680A1 Ignition device with lowered ignition temperature
09/06/1988US4768477 For an internal combustion engine
08/1988
08/31/1988CN87216921U Coke-autocleaning oil-saving sparkplug
08/30/1988US4767967 High voltage generating device
08/30/1988US4766861 Ignition device for air-compressing internal combustion engine
08/30/1988US4766855 Plasma jet ignition apparatus
08/25/1988WO1988006231A1 Combustion system for internal combustion engine and combustor used therefor
08/25/1988DE3704290A1 Adaptor between a microwave sensor and a commercially available spark plug
08/16/1988US4764703 Igniter plug with vibration damping means
08/09/1988US4762111 Head cover arrangement for double overhead cam type engine
07/1988
07/28/1988DE3742321A1 Device for controlling compression
07/28/1988DE3701396A1 Spark plug suppressor connecter
07/19/1988US4758791 Universal secondary high voltage sensor
07/19/1988US4758189 Damage resistant spark plug terminal connector
07/13/1988CN87211164U Engine igniting device
07/07/1988DE3713368A1 Plasmastrahl-zuendvorrichtung Plasma jet ignitor
06/1988
06/30/1988WO1988004842A1 Electrical connector
06/30/1988WO1988004729A1 Formation of electric field discharges
06/15/1988EP0270746A1 Method for manufacturing a center electrode for a spark plug
06/14/1988US4751430 Spark plug connector having transformer, capacitor, and spark gap
06/07/1988US4748947 Ignition system and method for multi-fuel combustion engines
06/01/1988EP0269267A1 A spark plug
06/01/1988EP0268757A1 Method for manufacturing a center electrode for a spark plug
06/01/1988EP0268598A1 Spark plug with surface discharge section.
06/01/1988EP0153927B1 Ignition unit in the ignition system of an internal combustion engine
06/01/1988CN87212685U Electrodes used on electro-sparking machine for machining injection nozzle seating surface
06/01/1988CN87211224U Loop type series connected ic engine ignition spark-plugs
05/1988
05/24/1988US4746868 Spark plug and wire testing unit
05/24/1988US4746834 Ignition plug for internal combustion engines
05/11/1988DE3637626A1 Method for fixing a metal pin within a ceramic insulating body
05/10/1988US4743793 Spark plug
05/03/1988US4742265 Spark plug center electrode of alloy material including aluminum and chromium
04/1988
04/21/1988WO1988002940A1 Ignition boot
04/12/1988US4736718 Combustion control system for internal combustion engines
04/07/1988WO1988002564A1 Pressurized ignition system
03/1988
03/30/1988EP0262005A1 Method of making a bimetallic central electrode with a platinum tip for a sparking plug, and electrode obtained by this method
03/24/1988WO1988002108A1 Spark plug provided with a measurement device
03/23/1988EP0260576A1 Igniter for air-compressing internal-combustion engines
03/22/1988CA1234281A1 Method for assembling a spark plug
03/15/1988US4730582 Performing spark plug
02/1988
02/25/1988WO1988001241A1 Driving and monitoring element for ingnition circuits
02/18/1988DE3627239A1 Schaltung zur ansteuerung und ueberwachung von zuendkreisen Circuit for controlling and monitoring of firing circuits
02/16/1988US4725254 Method for manufacturing a center electrode for a spark plug
02/04/1988DE3625363A1 Spark plug for internal combustion engines and method for producing such a spark plug
02/03/1988CN87103738A Semi-plastic casting fuel-economizing spark plug
02/03/1988CN87103737A All-plastic casting fuel-economizing spark plug
01/1988
01/12/1988CA1231405A1 Heat shielded, spark plug boot assembly
12/1987
12/17/1987WO1987007778A1 Spark plug with surface discharge section
12/17/1987WO1987007777A1 Spark plug for internal combustion engines
12/16/1987EP0249241A1 Sparking plug for internal-combustion engines
12/15/1987US4713582 Spark plug
12/15/1987US4713574 For a jet engine
12/15/1987US4713015 Connecting structure for high voltage resistance wires
12/15/1987CA1230373A1 Ignition transformer and spark plug cover assembly
12/12/1987CN86209483U Spark plug with air chamber in sparking end
12/09/1987EP0248717A1 Electromagnetic bobbin and ignition device for an internal-combustion engine comprising such a bobbin
11/1987
11/19/1987WO1987007094A1 Spark plug with surface discharge section
11/19/1987DE3616667A1 Spark plug
11/19/1987DE3616641A1 Spark plug with surface discharge gap
11/19/1987DE3616640A1 Spark plug with surface discharge gap
11/19/1987DE3616639A1 Spark plug for internal combustion engines
11/17/1987US4706638 Ignition unit in the ignition system of an internal combustion engine
11/12/1987DE3615395A1 Sparkplug which is intended for an internal combustion engine
11/10/1987US4705486 Method for manufacturing a center electrode for a spark plug
11/04/1987EP0243529A1 Spark plug
10/1987
10/20/1987US4701662 Spark plug connecting structure
10/15/1987DE3612135A1 Electrode for igniting combustible mixtures of gases and vapours
10/14/1987CN87100762A 火花塞 Spark plug
10/13/1987US4700103 Spark plug and its electrode configuration
10/13/1987US4699600 Spark plug and method of manufacturing the same
10/13/1987US4699096 Detonation prevention means for internal combustion engine
09/1987
09/30/1987EP0238520A1 Surface-discharge spark plug.
09/22/1987US4695759 Method for producing a composite center electrode and an electrode
09/22/1987US4695758 For internal combustion engines
09/16/1987EP0236376A1 Spark plug with surface discharge section
09/16/1987EP0120905B1 Spark plug
09/15/1987USRE32505 Combustion initiation system
09/09/1987EP0235223A1 Ignition device for internal combustion engines
09/08/1987US4692657 Thin ceramic protective layer on sparking end of thin platinum electrode layer
09/02/1987EP0234345A1 Make-and-break spark plug
08/1987
08/05/1987EP0231024A2 Spark amplification unit for an ignition device
08/04/1987US4684352 Method for producing a composite spark plug center electrode
07/1987
07/01/1987EP0226595A1 Spark plug for internal combustion engines.
06/1987
06/24/1987CN86100539A Sparkplug with precombustion chamber
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