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| Number | Title | Issue Date |
| 8053964 | Spark plug with increased pressure resistance The invention relates to a spark plug for igniting a combustible gas mixture in an internal combustion engine, comprising an ignition electrode (4), an electrical supply line (5), to which the ignition electrode (4) is connected, an insulator bo... | 11/08/2011 |
| 7116041 | Spark electrode assembly A spark electrode assembly has an elongate electrode with an inner insulator arranged for operable attachment to a support structure. The inner insulator surrounds the electrode with one end of the electrode positioned adjacent a ground element across a spark gap an... | 10/03/2006 |
| 7077100 | Combined fuel injection valve-ignition plug A fuel injector having an integrated spark plug is provided, the fuel injector providing direct injection of fuel into a combustion chamber of an internal combustion engine, and the spark plug for igniting the fuel injected into the combustion chamber. Also provided... | 07/18/2006 |
| 6955154 | Fuel injector spark plug A spark plug and fuel injector combination. The spark plug has a central channel that funnels fuel into the lower portion of the spark plug, where it is superheated. A solenoid system causes a needle valve to rise up to allow a measured quantity of fuel to be inject... | 10/18/2005 |
| 6930441 | Spark checker-spark arc gage An arc gage (30) includes a non-electrically conductive housing (42) and a first electrically conductive pin (44) that is disposed therein. The first pin (44) has a first end (44A) disposed within the housing (42) and a seco... | 08/16/2005 |
| 6748918 | Fuel injector having integrated spark plug A fuel injector having an integrated spark plug for injecting fuel directly into a combustion chamber of an internal combustion engine and for igniting the fuel that is injected into the combustion chamber has a valve body, which, together with a valve-closure membe... | 06/15/2004 |
| 6536405 | Fuel injection valve with integrated spark plug A fuel injector having an integrated spark plug (1) for injecting fuel directly into a combustion chamber (72) of an internal combustion engine and for igniting the fuel that is injected into the combustion chamber (72) has a valve body (7), which, togeth... | 03/25/2003 |
| 6469424 | Ignitor for liquid fuel rocket engines An ignitor that energizes a hydrogen fuel into a high temperature plasma which is then injected into a mixture of fuel and oxidizer within a combustion chamber.... | 10/22/2002 |
| 6382159 | Temperature and pressure activated pressure relieving spark plug A spark plug for venting excessive engine cylinder pressure may be either pressure or temperature activated. A vent passage is created in a conventional spark plug by drilling an air vent through the housing of a conventional spark plug to a point that ex... | 05/07/2002 |
| 6240888 | Internal combustion engine decompression valve kit and method for making same The invention is a decompression kit for large bore and/or high compression internal combustion engines. Specifically designed for engines such as the "Harley-Davidson.RTM." "V-Twin.RTM." or the "Sportster.RTM." models, the invention vents high cylinder p... | 06/05/2001 |
| 5937813 | Resettable pressure relieving spark plug A pressure relieving spark plug for use with an internal combustion engine. The pressure relieving spark plug functions as a conventional spark plug under normal operating conditions; however, upon the development of abnormal conditions, such as excessive... | 08/17/1999 |
| 5799634 | Spark plug for venting excessive pressure An internal combustion engine spark plug provides an overpressure release mechanism to avert engine component damage as a result of hydrostatic lock caused by liquids (typically water) entering the combustion chamber under operating conditions. This spark... | 09/01/1998 |
| 5730100 | Fuel injection arrangement with ignition plug function Arrangement (2) for fuel injection and ignition of a fuel/air mixture in the combustion chamber (6) in a cylinder (10) provided with a reciprocating piston (8) in a combustion engine. The arrangement includes a tubular retaining body (32) which constitute... | 03/24/1998 |
| 5610470 | Spark plug for an internal combustion engine A spark plug has a base with a bottom end portion adapted to be received and retained by a cylinder head of an internal combustion engine. An insulator retains a central electrode within the base with a combustion chamber end of the electrode extending in... | 03/11/1997 |
| 5531199 | Internal combustion engines An internal combustion engine in which each cylinder is connected to sources both of air and of fuel held as a gas under pressure and in which the compression stroke, during which a full charge of air is drawn and compressed, is substantially completed be... | 07/02/1996 |
| 5245959 | Air bypass spark plug This invention relates to a novel ignition plug, for use in an internal combustion engine, that has an insulator comprising a hollow decompression chamber arranged about a central electrode, an air injection inlet and multiple outlets sized to restrain th... | 09/21/1993 |
| 5113806 | Bicatalytic igniter converter and processor for internal combustion engines An improved combustion igniter for internal combustion engines is disclosed, comprising a conventional spark plug improved through the addition of (a) an upwardly facing generally vertical wire element secured to the negative cathode of the spark plug and... | 05/19/1992 |
| 4967708 | Fuel injection valve In lean operation of internal combustion engines having externally supplied ignition, improvement in terms of fuel consumption and emissions are obtained if the fuel is injected directly into the combustion chamber. Because the gas exchange guide cross se... | 11/06/1990 |
| 4954743 | Igniter plug structure having semicircular grooves This invention provides an igniter plug, having a plurality of grooves within an outer surface of an annular ground electrode (2), the diameter of which is reduced to about 13 mm. Each groove (6) generally has a semi-circular shape in cross section to all... | 09/04/1990 |
| 4859900 | Ignition plug for improving fuel economy of an internal combustion engine and decreasing the amount of toxicants expelled to the environment An ignition plug for use in an internal combustion engine comprises a plug main body, a central electrode embedded to the inside thereof and having a tubular structure through which atmospheric air is introduced to the inside of cylinder for the complete ... | 08/22/1989 |
| 4736718 | Combustion control system for internal combustion engines A combustion control system for internal combustion engines which includes a novel spark plug having a precombustion chamber in which a butane/air mixture injected through the plug is ignited in order to initiate and manage combustion wave propagation wit... | 04/12/1988 |
| 4699096 | Detonation prevention means for internal combustion engine The combustion chamber of an internal combustion engine is provided with a vent passage. The passage is normally closed by a valve which opens in response to an opening pressure having a predetermined magnitude intermediate the magnitude of the normal com... | 10/13/1987 |
| 4644218 | Spark plug with pre-combustion chamber and venturi passage A spark plug adapted, in use, for association with an axial passage (38, 38', 54). The spark plug includes an insulator member (21) having an electrode (23, 23') disposed centrally thereof and projecting outwardly from one end thereof; and an electrode me... | 02/17/1987 |
| 4597260 | Oxygen starting assist system An oxygen starting assist system for a gas turbine engine which facilitates lighting or relighting the air-fuel of the engine comprising a tubular element surrounding the spark plug that directs pure oxygen to the tip of the spark plug so as to envelop an... | 07/01/1986 |
| 4513220 | Ignition plug with air passage and double check valve An ignition plug provided with a tubular center electrode through which open air is introduced into the engine cylinder to accelerate exhaust of the combustion gas from the cylinder in the exhaust stroke of an engine cycle. The tubular electrode has a dou... | 04/23/1985 |
| 4454445 | Spark plug attachment This invention comprises an attachment for a spark plug which is to be used in place of the usual washer normally inserted between the seat of the plug and the engine block. It comprises a heat conducting sleeve which fits over the threaded end of the plu... | 06/12/1984 |
| 4396854 | Ignition plug An ignition plug for use in association with a cylinder of an internal combustion engine wherein within the body of the plug is a chamber having associated therewith first and second electrodes between which a spark is struck in the chamber. A supply arra... | 08/02/1983 |
| 4383198 | Fuel injection spark plug A fuel injection spark plug for use in combination with an external source of pressurized gaseous fuel such as hydrogen or natural gas supplied to an internal combustion engine is disclosed. The spark plug comprises a peripheral plenum surrounding or inte... | 05/10/1983 |
| 4325332 | Air injection system for internal combustion engines An air injection system, in a spark plug, whereby air is injected into the combustion cylinder comprising a compression chamber disposed in the body of the spark plug, a tube extending coaxially through the center of the plug having an air inlet means and... | 04/20/1982 |
| 4326145 | Compression relief adapter An improved spark plug and a compression relief adapter are described which are designed to permit a portion of the gases in the cylinder of an internal combustion engine to vent during the starting operation so as to make it easier to manually start the ... | 04/20/1982 |
| 4277724 | Integral spark plug coil for automotive-type plug An integral spark plug coil comprising a step-up coil within a canister which canister is mounted to a unique double-walled container. The container fits over the neck of the spark plug and is secured to the shell of the spark plug. An inner ceramic bushi... | 07/07/1981 |
| 4275334 | Integral spark plug coil for aircraft-type plug An integral spark plug coil comprising a step-up coil within a canister which canister is mounted to an aircraft-type spark plug. The canister is secured to the barrel of the spark plug. A ceramic bushing having a hub-like shape is arranged within a metal... | 06/23/1981 |
| 4267482 | Ignition spark plug A spark plug for internal combustion engines includes at least a part of communicating holes each having one end opened in the vicinity of a packing and the other end opened to an engine combustion chamber, whereby the propagation of the flame into the sp... | 05/12/1981 |
| 4264844 | Electrical igniters An electrical igniter has two electrodes separated over the bore of a semiconductive annular element. One electrode is mounted at the operative tip of the igniter and has an orifice through which the bore opens from the igniter. A capillary tube extends f... | 04/28/1981 |
| 4235214 | Secondary air guide ring for ignition plug A secondary air guide ring for an ignition plug, which is mounted on the outer periphery of a male thread of an ignition plug for mounting the same ignition plug in a cylinder head and provides a hermetical seal between the ignition plug and cylinder head... | 11/25/1980 |
| 4232242 | Sparking plug with efficient air supplying system and a removable sitting device A spark plug including an air supplying system which supplies enough air to an internal-combustion engine to promote the required degree of combustion of the fuel in the engine and produces little carbon which might block the ventilation of air. The air s... | 11/04/1980 |
| 4222549 | Apparatus for breaking wood A method and apparatus for use in breaking wood, such as wood splitting and tree felling, for causing the wood to break under the influence of a force acting on the cutting surfaces of a notch in the wood, such as a saw notch. The wood breaking force is p... | 09/16/1980 |
| 4029982 | Plug for internal combustion engine for limiting production of nitrogen oxide A plug for use in a cylinder of an internal combustion engine adapted to limit the production of nitrogen oxide (NOx). The plug has an inner cover which surrounds the ignition electrodes with the inner cover having an opening to provide communication betw... | 06/14/1977 |
